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HomeMy WebLinkAbout1.0 ApplicationGARFIELD COUNTY Building & Planning Department 108 8th Street, Suite 401 Glenwood Springs, Colorado 81601 Telephone: 970.945.8212 Facsimile: 970.384.3470 www.garfield-countv.com Special Use Permit GENERAL INFORMATION (To be completed by the applicant.) > Street Address / General Location of Property: Approximately 7 miles northwest of Parachute, co, on County Rd 215, and left up Garden Gulch Road for 1/2 mile. Site is on right side of road. ➢ Legal Description: Located in the NE/4 and the SE/4 of the SW/4 of Section 8, Township 6 South, Range 96 West, 6th P.M. • Existing Use & Size of Property in acres: Natural Gas Development, 3.5 acres of 5,320 acres • Description of Special Use Requested: Industrial Support Facility - material handling, storage areas i Zone District: RL (Resource Lands) > Name of Property Owner (Applicant): Chevron U.S.A., Inc. > Address: 11111 S. Wilcrest Telephone: _281-561-3510 ➢ City: Houston State: _Tx Zip Code: 77099 FAX: 866-228-5093 ➢ Name of Owner's Representative, if any (Attorney, Planner, etc): Cordilleran Compliance Services - Brandon Danforth > Address: 826 21 1/2 Rd. > City: Grand Junction State: co Telephone: 970-263-7800 Zip Code: 81505 FAX: 970-263-7456 STAFF USE ONLY > Doc. No.: Date Submitted: TC Date: > Planner: Hearing Date: List of Appendices Appendix 1 Site Design Plans Appendix 2 Vicinity Maps Appendix 3 County Assessor Maps Appendix 4 List of Adjacent Property Owners Appendix 5 Legal Description and Deed Appendix 6 Letters Appendix 7 Lease Agreement Appendix 8 Stormwater Management Plan (SWMP) Appendix 9 Spill Prevention, Control and Countermeasure Plan (SPCC) Appendix 10 Wildlife Assessment and Mitigation Plan Appendix 11 Integrated Vegetation and Noxious Weed Management Plan Appendix 12 Sound Study Appendix 13 Associated Permits Appendix 14 Site Photo Log Appendix 15 Public Notice Appendix 16 Agreement to Pay Form APPLICATION SUBMITTAL REQUIREMENTS As a minimum, specifically respond to all the following items below and attach any additional information to be submitted with this application: 1. Please submit, in narrative form, the nature and character of the Special Use requested. Submit plans and supporting information (i.e. letters from responsible agencies). Include specifications for the proposed use including, but not limited to, the hours of operation, the number and type of vehicles accessing the site on a daily, weekly and/or monthly basis, and the size and location of any existing and/or proposed structures that will be used in conjunction with the proposed use, and provisions for electric power service and any other proposed utility improvements. Be specific. 2. If you will be using water or will be treating wastewater in conjunction with the proposed use, please detail the amount of water that would be used and the type of wastewater treatment. If you will be utilizing well water, please attach a copy of the appropriate well permit and any other legal water supply information, including a water allotment contract or an approved water augmentation plan to demonstrate that you have legal and adequate water for the proposed use. 3. Submit a site plan /map drawn to scale that portrays the boundaries of the subject property, all existing and proposed structures on the property, and the County or State roadways within one (1) mile of your property. If you are proposing a new or expanded access onto a County or State roadway, submit a driveway or highway access permit. 4. Submit a vicinity map showing slope / topography of your property, for which a U.S.G.S. 1:24,000 scale quadrangle map will suffice. 5. Submit a copy of the appropriate portion of a Garfield County Assessor's Map showing all the subject property and public and private landowners adjacent to your property (which should be delineated). In addition, submit a list of all property owners, public and private landowners and their addresses adjacent to or within 200 ft. of the site. This information can be obtained from the Assessor's Office. We will also need the names (if applicable) of all mineral right owners of the subject property. (That information can be found in your title policy under Exceptions to Title). 6. Submit a copy of the deed and a legal description of the subject property. 7. If you are acting as an agent for the property owner, you must attach an acknowledgement from the property owner that you may act in his/her behalf. 8. Submit an statement that specifically responds to each of the following criteria from Section 5.03 of the Zoning Regulations: (1) Utilities adequate to provide water and sanitation service based on accepted engineering standards and approved by the Board of County Commissioners shall either be in place or shall be constructed in conjunction with the proposed use. (2) Street improvements adequate to accommodate traffic volume generated by the proposed use and to provide safe, convenient access to the use shall either be in place or shall be constructed in conjunction with the proposed use; (3) Design of the proposed use is organized to minimize impact on and from adjacent uses of land through installation of screen fences or landscape materials on the periphery of the lot and by location of intensively utilized areas, access points, lighting and signs in such a manner as to protect established neighborhood character; 9. Depending on the type of Special Use Permit requested, you may need to respond to additional review standards in the Garfield County Zoning Resolution Section 5.00 [Supplementary Regulations]. This may include uses such industrial uses [section 5.03.07 & 5.03.08], Accessory Dwelling Units [section 5.03.21], Utility Zine/Utility Substations, etc. Specific sections of the Zoning Resolution which can be located on the Garfield County web site at http://www.garfield-county.com/building and planning/index.htm, or information can be obtained from this office 10. A $400.00 Base Fee: Applicant shall sign the "Agreement for Payment" form and provide the fee with the application. 11. Submit 2 copies of this completed application form and all the required submittal materials to the Building and Planning Department. Staff will request additional copies once the Special Use Permit application has been deemed technically complete. II. PROCEDURAL REQUIREMENTS (The following steps outline how the Special Use Permit Application review process works in Garfield County.) 1. Submit this completed application form, base fee, and all supplemental information to the Garfield County Planning Department. It will be received and given to a Staff Planner who will review the application for technical completeness. 2. Once the application is deemed technically complete, the Staff Planner will send you a letter indicating the application is complete. In addition, Staff will also send you a "Public Notice Form(s)" indicating the time and date of your hearing before the Board of County Commissioners. Prior to the public hearing, Staff will provide you with a Staff Memorandum regarding your requested Special Use. (If Staff determines you application to be deficient, a letter will be sent to you indicating that additional information is needed to deem your application complete.) 3. It is solely the Applicant's responsibility to ensure proper noticing occurs regarding the requested Special Use and the public hearing. If proper notice has not occurred, the public hearing will not occur. Notice requirements are as follows: a. Notice by publication, including the name of the applicant, description of the subject lot, a description of the proposed special use and nature of the hearing, and the date, time and place for the hearing shall be given once in a newspaper of general circulation in that portion of the County in which the subject property is located at least thirty (30) but not more than sixty (60) days prior to the date of such hearing, and proof of publication shall be presented at hearing by the applicant. b. Notice by mail, containing information as described in the paragraph above, shall be mailed to all owners of record as shown in the County Assessor's Office of lots within two hundred feet (200') of the subject lot and to all owners of mineral interest in the subject property at least thirty (30) but not more than sixty (60) days prior to such hearing time by certified return receipt mail, and receipts shall be presented at the hearing by the applicant. c. The site shall be posted such that the notice is clearly and conspicuously visible from a public right-of-way, with notice signs provided by the Planning Department. The posting must take place at least thirty (30) but not more than sixty (60) days prior to the hearing date and is the sole responsibility of the applicant to post the notice, and ensure that it remains posted until and during the date of the hearing. 4. The Applicant is required to appear before the Board of County Commissioners at the time and date of the public hearing at which time the Board will consider the request. In addition, the Applicant shall provide proof, at the hearing, that proper notice was provided. 5. Once the Board makes a decision regarding the Special Use request, Staff will provide the Applicant with a signed resolution memorializing the action taken by the Board. Following the Board's approval, this office will issue the Special Use Permit to the applicant. If the Board's approval includes specific conditions of approval to be met, this office will not issue the Official Special Use Permit certificate until the applicant has satisfied all conditions of approval. The Special Use Permit approval is not finalized until this office has issued the Official Special Use Permit certificate signed by the Chairman of the Board of County Commissioners. I have read the statements above and have provided the required attached information which is correct and accurate to the best of my knowledge. :- -I. Card,Ylvm., (Sig natur» of aP i 3 ow 03/57 Laevised: 02/2006 I. APPLICATION SUBMITTAL REQUIREMENTS As a minimum, specifically respond to all the following items below and attach any additional information to be submitted with this application: 1. Please submit, in narrative form, the nature and character of the Special Use requested. Submit plans and supporting information (Le. letters from responsible agencies). Include specifications for the proposed use including, but not limited to, the hours of operation, the number and type of vehicles accessing the site on a daily, weekly and/or monthly basis, and the size and location of any existing and/or proposed structures that will be used in conjunction with the proposed use, and provisions for electric power service and any other proposed utility improvements. Be specific. Proposed Use Petroleum Development Corporation (PDC) requests a Garfield County Special Use Permit to modify the Garden Gulch Compressor Site. Permission to seek this permit has been granted by the property owner, Chevron U.S.A., Inc. (Chevron) in Appendix 6. Site Description The Garden Gulch Compressor Site is an existing facility located on approximately 3.5 acres of land lying in the east half of the SW/4 of Section 8, Township 8 South, Range 96 West, 6th Principal Meridian, Garfield County, Colorado. The 3.5 -acre parcel is leased by PDC from Chevron, and is located within a larger 5,320 -acre property owned by Chevron. A copy of the Lease Agreement can be found in Appendix 7. The nearest adjacent property is a parcel of BLM land, and is approximately 1/2 mile away. The nearest municipality is the Town of Parachute, approximately 7 miles southeast. Garden Gulch, Parachute Creek and several other ephemeral drainages are located within one mile of the site. This site is currently considered resource lands and activities include oil and gas development. The access road is a private road half a mile up Garden Gulch Road, which is off of County Road 215. Site Design The Garden Gulch Compressor Site was originally constructed in May 2003. Construction at the original site began prior to the requirement of a Special Use Permit (SUP) by the Garfield County Board of County Commissioners (BOCC) for the construction of natural gas compressor sites. Due to the need to replace older equipment with newer more efficient equipment, and to meet the needs for increased production, PDC seeks approval of this SUP application for the modification of the existing Garden Gulch Compressor Site. The modification of the Garden Gulch Compressor Site involves the removal of some current equipment, re -arrangement of remaining equipment, and addition of new equipment at the site. The current configuration of the equipment at the site can be found in Appendix 1. The equipment to be removed includes a flare, a glycol regenerator, a discharge separator, an above -ground tank and meter. The equipment to remain at the site includes 2 Ajax compressors, a separator, meter, tanks and emergency vent stack. New equipment to be added to the site includes two new gas -driven compressors (with future 3` compressor to be installed at a later date), a glycol contactor, glycol regenerator, BTEX unit, pig receiver, inlet separator, discharge separator, fuel gas scrubber, enclosed flare, and associated above -ground storage tanks. The new proposed configuration of the equipment at the site can also be found in Appendix 1. The purpose of modifying the Garden Gulch Compressor Site is to increase the efficiency of the site, reduce emissions via added controls, and increase the production capabilities to match current and future increased demand. The current pad size is sufficiently large for the additional equipment and new configuration that is proposed, and would not need to be expanded or modified. An additional gas -driven compressor will likely be added at a future date, and space is provided on the current -sized pad to accept it. Construction at the site will begin upon approval of this application and is expected to take approximately 4-6 weeks to complete. Installation of the third new gas -driven compressor is expected to occur between July and October 2007. Hours of Operation The Garden Gulch Compressor Site will operate 24 hours a day, 365 days a year. The facility will be unmanned; however, daily inspections will be conducted by local operation personnel. Vehicles, Machinery and Structures Construction at the Garden Gulch Compressor Site will result in a temporary traffic increase of an estimated 10 to 15 trips per day made by light-duty vehicles, as well as heavy equipment. All vehicles hauling equipment and material for project construction will abide by Garfield County Road and Bridge's oversize/overweight regulations. All tractor -trailer type vehicles will use pilot cars from County Road 215 to the site. Estimates of vehicle traffic during construction are provided in the following table. Traffic Impacts to Garfield County Road 21 Types of Vehicles Trips per day Trips per week Trips per month Light Trucks 10-15 50-75 220-330 Tractor -trailers 1-2 2-4 4-16 Cranes 0 0 1-2 Total Vehicles per month 11-17 52-79 225-348 Operation and maintenance of the facility will require approximately two trips per day made by a light-duty vehicle. Approximately 5-10 water -truck trips per week are expected in order to empty above ground tanks containing produced water and condensate. The frequency of vehicle trips to the site after construction is complete is expected to be only slightly greater than the current operational frequency. All structures and equipment at the site will be painted to blend in with the surrounding area, thereby reducing possible visual impacts. Several small buildings currently exist at the site, and an additional building will be erected over the new compressors to aid with noise mitigation. Electrical power is already installed to the Garden Gulch Compressor Site, and is supplied by Excel Energy. Portable toilets will be used during construction at the site, and potable water will be transported from off-site and made available to personnel. No other utilities will be installed in association with the Garden Gulch Compressor Site. 2. If you will be using water or will be treating wastewater in conjunction with the proposed use, please detail the amount of water that would be used and the type of wastewater treatment. If you will be utilizing well water, please attach a copy of the appropriate well permit and any other legal water supply information, including a water allotment contract or an approved water augmentation plan to demonstrate that you have legal and adequate water for the proposed use. No water supply wells are located on this site, nor are any water supply wells planned in the future. Potable water will be brought from offsite and made available to workers onsite. Portable toilets will be available onsite during construction and no permanent water or sanitation utilities will be constructed. 3. Submit a site plan /map drawn to scale that portrays the boundaries of the subject property, all existing and proposed structures on the property, and the County or State roadways within one (1) mile of your property. If you are proposing a new or expanded access onto a County or State roadway, submit a driveway or highway access permit. Site Design Plans for the site are included in Appendix 1. No new or expanded accesses onto a County or State roadway are being proposed. 4. Submit a vicinity map showing slope / topography of your property, for which a U.S. G.S. 1:24,000 scale quadrangle map will suffice. Vicinity Maps are included in Appendix 2. S. Submit a copy of the appropriate portion of a Garfield County Assessor's Map showing all the subject property and public and private landowners adjacent to your property (which should be delineated). In addition, submit a list of all property owners, public and private landowners and their addresses adjacent to or within 200 ft. of the site. This information can be obtained from the Assessor's Office. We will also need the names (f applicable) of all mineral right owners of the subject property. (That information can be found in your title policy under Exceptions to Title). A map is included in Appendix 3 that shows the subject property and delineates all of the adjacent landowner parcels, and a list of adjacent property owners with address information is included in Appendix 4. 6. Submit a copy of the deed and a legal description of the subject property. The Legal Description and Deed for the property are included in Appendix 5. 7. If you are acting as an agent for the property owner, you must attach an acknowledgement from the property owner that you may act in his/her behalf A Letter of Acting Agent is included in Appendix 6. 8. Submit a statement that specifically responds to each of the following criteria from Section 5.03 of the Zoning Regulations: (1) Utilities adequate to provide water and sanitation service based on accepted engineering standards and approved by the Board of County Commissioners shall either be in place or shall be constructed in conjunction with the proposed use. Potable water will be brought in via trucks from offsite and made available to workers onsite. Portable toilets will be available onsite and will be supplied and serviced by a contractor. (2) Street improvements adequate to accommodate traffic volume generated by the proposed use and to provide safe, convenient access to the use shall either be in place or shall be constructed in conjunction with the proposed use; The Garden Gulch Compressor Site is located approximately 3400 feet along Garden Gulch Road, an existing private road off of Garfield County Road 215. The road provides safe and adequate access and egress onto and off of Garfield County Road 215. The modification of the Garden Gulch Compressor Site would have minimal direct impact to County Road 215, and street improvements would not be necessary. The construction period will result in a temporary traffic increase of an estimated 10 to 15 trips per day made by light-duty vehicles, as well as heavy equipment. All vehicles hauling equipment and material for project construction will abide by Garfield County Road and Bridge's oversize/overweight regulations. All tractor -trailer type vehicles will use pilot cars from County Road 215 to the site. Operation and maintenance of the facility will require approximately one trip per day made by a light-duty vehicle. Approximately five to ten water -truck trips per week are expected in order to empty above ground tanks containing produced water and condensate. The frequency of vehicle trips to the site after construction is complete is expected to be only slightly greater than the current operational frequency. All construction and operation personnel will park on site and will not block or hinder normal traffic on County Road 215. All activities on this site will be conducted out of the right-of-way of County Road 215. PDC will implement the following measures to minimize impacts to transportation and roads: • Control dust along unsurfaced access roads and minimize tracking of soil onto paved roads, as required by the CDPHE Construction Stormwater Permit; and • Comply with county and state weight restrictions and limitations. (3) Design of the proposed use is organized to minimize impact on and from adjacent uses of land through installation of screen fences or landscape materials on the periphery of the lot and by location of intensively utilized areas, access points, lighting and signs in such a manner as to protect established neighborhood character; The Garden Gulch Compressor Site is located about 3,400 feet up Garden Gulch Rd, within the garden gulch canyon. The site is located on a 3.5 acre area that is part of a larger 5,320 acre parcel that extends eastward to the edge of County Road 215. The steep topography surrounding the site acts as a visual barrier from most directions. Parts of the site are visible from the bottom of the canyon and from a few small sections of County Road 215, which is about 1/2 mile away. Visual screening will be used along the east edge of the site to mitigate visual impacts to County Road 215. Access to the site from County Road 215 is via Garden Gulch Road, a private dirt road, which already exists. Lighting will only be required during unscheduled nighttime maintenance and all lights on the property will be pointed downward and screened to prevent direct reflection on any adjacent property. 9. Depending on the type of Special Use Permit requested, you may need to respond to additional review standards in the Garfield County Zoning Resolution Section 5.00 [Supplementary Regulations]. This may include uses such industrial uses [section 5.03.07 & 5.03.08], Accessory Dwelling Units [section 5.03.21], Utility line/Utility SubSites, etc. Specific sections of the Zoning Resolution which can be located on the Garfield County web site at http://www.garfieldcountv.com/building and planning/index.htm, or information can be obtained from this office. 5.03.07 Industrial Operations: Industrial Operations, including extraction, processing, fabrication, industrial support facilities, mineral waste disposal, storage, sanitary landfill, salvage yard, access routes and utility lines, shall be permitted, provided: (1) The applicant for a permit for industrial operations shall prepare and submit to the Planning Director ten (10) copies of an impact statement on the proposed use describing its location, scope, design and construction schedule, including an explanation of its operational characteristics. One (1) copy of the impact statement shall be filed with the County Commissioners by the Planning Director. The impact statement shall address the following: The Impact Statement is included as a part of this narrative and is addressed via the sections below. (A) Existing lawful use of water through depletion or pollution of surface run-off, stream flow or ground water; A Stormwater Management Plan (SWMP), detailing the use of site-specific Best Management Practices (BMPs), has been prepared for this site and is included in Appendix 8. Additionally, a Spill Prevention, Control and Countermeasure (SPCC) Plan has been developed for this site and is included in Appendix 9. Implementation of the SWMP and SPCC Plan ensures that activities conducted at the site comply with stormwater management and spill prevention controls and countermeasures as required by Garfield County, the State of Colorado, and the United States Environmental Protection Agency. Implementation of these plans also ensures that PDC would not pollute surface runoff, stream flow, or groundwater. No water supply wells are located on this site, nor are any water supply wells planned in the future. (B) Impacts on adjacent land from the generation of vapor, dust, smoke, noise, glare or vibration, or other emanations; No smoke or glare would be produced as a result of this project. Minor vibration would occur from operation of the compressor engines; however, vibrations would not be noticeable at the property line. Equipment operation would produce vapor, which is a standard by-product of equipment operation. PDC would apply water, gravel, tackifrer, or other equivocal measures as necessary to prevent fugitive dust emissions from equipment and/or vehicles traveling in the project area. PDC has conducted a sound survey for the existing compressor facility and the results of the sound survey are provided in Appendix 12. After installation of the additional compressor engines, PDC will perform an additional sound level survey. If operations exceed COGCC regulations, PDC would install sound mitigation equipment as necessary to meet COGCC regulations. Sound mitigation measures could include a combination of residential grade silencers over fans, pre -fabricated steel buildings over compressors and drivers, and/or installation of other sound mitigation equipment. PDC has acquired air quality permits from the Colorado Department of Pubic Health and Environment Air Pollution Control Division for the existing two natural gas -driven compressors and glycol dehydrator (see Appendix 13). Air quality permits are also being obtained, as required, for any additional equipment that will be added to the site. (C) Impacts on wildlife and domestic animals through the creation of hazardous attractions, alteration of existing native vegetation, lockade of migration routes, use patterns or other disruptions; A Wildlife Assessment and Mitigation Plan was prepared and is included in Appendix 10. The plan identifies the area around the existing site as good mule deer winter habitat. Signs of blue grouse and possibly raptors were found along the high slopes around the site, and in the riparian area along the Garden Gulch creek. To prevent excessive damage to the surrounding wildlife habitat, the plan suggests minimizing the amount of disturbed area during construction. PDC will limit construction at the Garden Gulch Compressor site to the current site pad, and will not disturb any new areas around the pad. This will ensure that none of the habitat surrounding the site will be impacted by the proposed construction activities. (D) Affirmatively show the impacts of truck and automobile traffic to and from such uses and their impacts to areas in the County; The construction period at the Garden Gulch Compressor Site will result in a temporary traffic increase of an estimated 10 to 15 trips per day made by light-duty vehicles, as well as heavy equipment. All vehicles hauling equipment and material for project construction will abide by Garfield County Road and Bridge's oversize/overweight regulations. All tractor -trailer type vehicles will use pilot cars from County Road 215 to the site. Estimates of vehicle traffic during construction are provided in the following table. Traffic Impacts to Garfield County Road 21 Types of Vehicles Trips per day Trips per week Trips per month Light Trucks 10-15 50-75 220-330 Tractor -trailers 1-2 2-4 4-16 Cranes 0 0 1-2 Total Vehicles per month 11-17 52-79 225-348 Operation and maintenance of the facility will require approximately one trip per day made by a light-duty vehicle. Approximately five to ten water -truck trips per week are expected in order to empty above ground tanks containing produced water and condensate. The frequency of vehicle trips to the site after construction is complete is not expected to be any greater than the current operational frequency. All construction and operation personnel will park on site and will not block or hinder normal traffic on County Road 215. All activities on this site will be conducted out of the right-of-way of County Road 215. PDC will implement the following measures to minimize impacts to transportation and roads: • Control dust along unsurfaced access roads and minimize tracking of soil onto paved roads, as required by the CDPHE Construction Stormwater Permit; and • Comply with county and state weight restrictions and limitations. (E) That sufficient distances shall separate such use from abutting property which might otherwise be damaged by operations of the proposed use(s); The nearest adjacent occupied residence is located approximately % mile east of the proposed project location, where Garden Gulch Road and County Road 215 meet. (F) Mitigation measures proposed for all of the foregoing impacts identified and for the standards identified in Section 5.03.08 of this Resolution No mitigation measures are proposed. (2) Permits may be granted for those uses with provisions that provide adequate mitigation for the following: (A) A plan for site rehabilitation must be approved by the County Commissioners before a permit for conditional or special use will be issued; The facility will be operated for the life of the gas wells in the area which is estimated to be 30 years or more. At the end of the economic life of wells in the area, the compressor Site will be reclaimed by removing all surface facilities, grading to restore original contours, replacing topsoil, and revegetating the reclaimed area. All reclamation activities will be conducted in compliance with prevailing Colorado Oil and Gas Conservation Commission and Garfield County regulations. (B) The County Commissioners may require security before a permit for special or conditional use is issued, if required. The applicant shall furnish evidence of a bank commitment of credit, bond, certified check or other security deemed acceptable by the County Commissioners in the amount calculated by the County Commissioners to secure the execution of the site rehabilitation plan in workmanlike manner and in accordance with the specifications and construction schedule established or approved by bonds the County Commissioners. Such commitments, or check shall be payable to and held by the County Commissioners; If deemed necessary by the County Commissioners, PDC will provide financial assurance for the purpose of ensuring the proper reclamation and closure of the compressor facility. (C) Impacts set forth in the impact statement and compliance with the standards contained in Section 5.03.08 of this Resolution. (A. 93- 061) 5.03.08 Industrial Performance Standards: All industrial operations in the County shall comply with applicable County, State, and Federal regulations regulating water, air and noise pollution and shall not be conducted in a manner constituting a public nuisance or hazard. Operations shall be conducted in such a manner as to minimize heat, dust, smoke, vibration, glare and odor and all other undesirable environmental effects beyond the boundaries of the property in which such uses are located, in accord with the following standards; (1) Volume of sound generated shall comply with the standards set forth in the Colorado Revised Statutes at the time any new application is made. (A. 93-061) PDC has conducted a sound level study for the current equipment configuration at the Garden Gulch Compressor Site. Results of this study can be found in Appendix 12. Sound levels for the current equipment configuration at the site are in compliance with COGCC maximum sound levels set forth in Rule 802 of the COGCC Rules and Regulations, "Noise Abatement." An additional sound level study would be conducted after installation of the new equipment and compressors is completed. If sound levels resulting from the operation of the compressor Site exceed COGCC regulations, PDC would install sound mitigation equipment as necessary to meet COGCC regulations. Sound mitigation measures could include a combination of residential grade silencers over fans, pre -fabricated steel buildings over compressors and drivers, and/or installation of other sound mitigation equipment. (2) Vibration generated: every use Mall be so operated that the ground vibration inherently and recurrently generated is not perceptible, without instruments, at any point of any boundary line of the property on which the use is located; PDC would provide vibration mitigation equipment to meet all vibration regulation requirements. Ground vibration would not be noticeable at the fenced boundary of the Garden Gulch Compressor Site. (3) Emissions of smoke and particulate matter: every use shall be operated so as to comply with all Federal, State and County air quality laws, regulations and standards; Smoke would not be produced as a result of this project. Because construction will affect less than 25 acres and will last less than six months, a CDPHE fugitive dust permit is not required. Although a fugitive dust permit is not required, PDC will mitigate dust during construction with the following measures: • Control dust along unsurfaced access roads and minimize tracking of soil onto paved roads, as required by the CDPHE Construction Stormwater Permit; • Limit construction and operation traffic speeds to a low and reasonable level; • Keep dusty, exposed areas damp with water or a Mag -chloride solution; • Stabilize traffic areas with gravel; and • Revegetate or stabilize non -traffic areas as soon as practicable. PDC has acquired air quality permits from the Colorado Department of Pubic Health and Environment Air Pollution Control Division for the existing two natural gas -driven compressors and glycol dehydrator (see Appendix 13). Air quality permits will also be obtained, if needed, for any additional equipment that may be added to the site. (4) Emission of heat, glare, radiation and fumes: every use shall be so operated that it does not emit heat, glare, radiation or fumes which substantially interfere with the existing use of adjoining property or which constitutes a public nuisance or hazard. Flaring of gases, aircraft warning signals, reflective painting of storage tanks, or other such operations which may be required by law as safety or air pollution control measures shall be exempted from this provision; Ancillary facilities may produce heat during operation of the Garden Gulch Compressor Site. Heat produced would be minimal and would not be detectable at the property boundary. No glare, radiation or fumes would be produced. Adjacent property would not be affected and a pubic nuisance or hazard would not be created. (5) Storage area, salvage yard, sanitary landfill and mineral waste disposal areas :(A97-112) A) Storage of flammable or explosive solids or gases shall be in accordance with accepted standards and laws and shall comply with the national, state and local fire codes and written recommendations/comments from the appropriate local protection district regarding compliance with the appropriate codes; (A97- 112) Storage tanks are located on-site and store approximately 800 barrels (bbls) of condensate and/or produced water. Storage is in accordance with PDC's SPCC plan. Flammable and combustible liquids and gases will be stored in accordance with accepted standards and laws and will comply with the national, sate and local fire codes and written recommendations and/or comments from the appropriate local protection district regarding compliance with the appropriate codes. (B) At the discretion of the County Commissioners, all outdoor storage facilities may be required to be enclosed by fence, landscaping or wall adequate to conceal such facilities from adjacent property; (A97-112) The Garden Gulch Compressor Site is located at the mouth of the Garden Gulch canyon. The site is not visible from adjacent properties the south, west or north sides due to the steepness of the canyon walls. Adjacent properties to the west are located approximately '/2 mile away and do not include any residences. Some parts of the site are screened by existing vegetation. (C) No materials or wastes shall be deposited upon a property in such form or manner that they may be transferred off the property by any reasonably foreseeable natural causes or forces; (A97-112) This site has been designed to protect the groundwater and surface water resources. A Stormwater Management Plan (SWMP) has been developed for the site. This plan describes the best management practices (BMP) for erosion control and stormwater management. The site and surrounding area is inspected every 14 days (and after significant rain events) to ensure compliance with conditions of the Stormwater Permit. Furthermore, the SWMP outlines housekeeping procedures to prevent materials and wastes for being deposited on the property in such a manner that they may be transferred off the property by any reasonably foreseeable natural cause or force. Some of these measures are: • Storing materials and containerized fluids in a neat and orderly manner; • Placing any wastes requiring temporary storage in sealed containers, then collecting and disposing containers at suitable off- site facilities; and • Containing sanitary wastes in portable toilets, which will be pumped on a regular basis. Waste will be transported and disposed of at an approved facility. A copy of the SWMP is included in Appendix 8. (D) Storage of Heavy Equipment will only be allowed subject to (A) and (C) above and the following standards: (A97-112) 1. The minimum lot size is five (5) acres and is not a platted subdivision. The Garden Gulch Compressor Site is on a 3.5 acre site that is a leased part of a larger 5,320 acre parcel owned by Chevron U.S.A. The area is zoned resource lands and is not within a platted subdivision. 2. The equipment storage area is not placed any closer than 300 t from any existing residential dwelling. There are no existing residential dwellings within 300 feet of this site. 3. All equipment storage will be enclosed in an area with screening at least eight (8) feet in height and obscured from view at the same elevation or lower. Screening may include berming, landscaping, sight obscuring fencing or a combination of any of these methods. The Garden Gulch Compressor Site is located about 3,400 feet up Garden Gulch Rd, within the garden gulch canyon. The site is located on a 3.5 acre area that is part of a larger 5,320 acre parcel that extends eastward to the edge of County Road 215. The steep topography surrounding the site acts as a visual barrier to the north, west, and south directions. Parts of the site are visible from a few small sections of County Road 215, which is about '/2 mile away to the east. Storage is planned on the east half of the site, and screening will be utilized on the east edge of the site to minimize any potential visual impacts. 4. Any repair and maintenance activity requiring the use of equipment that will generate noise, odors or glare beyond the property boundaries will be conducted within a building or outdoors during the hours of 8 a.m. to 6 p.m., Mon. -Fri. Any scheduled repair and maintenance activity requiring the use of equipment that will generate noise, odors or glare beyond the property boundaries will be conducted during the hours of 8 a.m. to 6 p.m., Monday through Friday. 5. Loading and unloading of vehicles shall be conducted on private property and may not be conducted on any public right- of-way. All loading and unloading of vehicles will be conducted out of the public right-of-way. (E) Any storage area for uses not associated with natural resources shall not exceed ten (10) acres in size. (A97-112) Any potential storage area affiliated with the proposed compressor facility would be associated with natural resources; however, the storage area would not exceed 10 acres in size. (F) Any lighting of storage area shall be pointed downward and inward to the property center and shaded to prevent direct reflection on adjacent property (A97-112) Lighting will only be required during unscheduled nighttime maintenance and all lights on the property will be pointed downward and screened to prevent direct reflection on any adjacent property. (6) Water pollution: in a case in which potential hazards exist, it shall be necessary to install safeguards designed to comply with the Regulations of the Environmental Protection Agency before operation of the facilities may begin. All percolation tests or ground water resource tests as may be required by local or State Health Officers must be met before operation of the facilities may begin. A Stormwater Management Plan (SWMP) detailing the use of site-specific Best Management Practices (BMPs) has been prepared for this site and is included in Appendix 8. A Stormwater Construction Permit has been obtained and is included in Appendix 14. Additionally, an SPCC Plan has been developed for this site and is included in Appendix 9. Implementation of these plans ensures that PDC will not pollute surface runoff, stream flow, or groundwater. All necessary safeguards will be followed at this site to prevent water pollution. 10. A $400.00 Base Fee: Applicant shall sign the "Agreement for Payment" form and provide the fee with the application. A signed Agreement to Pay Form is included in Appendix 16. Appendix 1 Site Design Plans 0 LC W a 0- z w 0 0 CM 0 N U 4 m V 0) P C a 03 U 0 in 0 ( a) NW Piceance G 0 0 O 2:51 pmW:\Job I 0 0 m EXISTING RECENER EXISTING TANKS 5 EXISTING METER ---------------- RAVI 0040 EXISTING AJAX COMPRESSOR EXISTING TANK X1511(0 METER BUILDING "S746b9 rmm� EXISTING TANK EXIS1100 URE EXISTING AILs7”. DISCHARGE I SE ORATOR NOTES: I. CONTRACTOR SHALL FIELD VERIFY ALL DIMENSIONS PRIOR TO FABRICATION. ------------------ -MICE WWI OfACH MON EMERGENCY VENT EXISTING GLYCOL REGENERATOR O EXISTING =DING. \ \ \ -`s-c--1.__ \ \ \\ \\ ",.. (NCE ORPW1NG5 A A 0 5910 FOR CM 59.1(0 FOR VD 550F0 r(0 At VIM 0(55x7700 SIGN 3/79/07 3/7/07 /20/07 1/1)77 0711 T7) nestW ID RSV PIRcott /74107 /1 /07 7/1 /0 Petroleum Development Corp. 71:IGOIJ3i^,...4:: n GENERAL ARRANGEMENT PRE -CONSTRUCTION 2242-01 0224201-M-100 Mar 19. 2007 — 3:13pmW:\Job Information\Jobs\2242-01 PDC Piceance Gathering System\H—Dwgs\H2 Plant&Facility\H2B Piping_Mech\H2B1 IFC\D224201—M-101 GEN ARR POST REV 1.dw< mve,- L - S METER BUILDING b NEW - GLYCOL MAKE UP LANK NEW ENCLOSED RARE F-101 {�d NEW IPIC RECEIVER NEW J NEW - GLYCOL GLYCOL REGENERATORCONTACTOR V-103 NEW G-101InI FUEL CAS SCRUBBER V-104 • FUTURE COMPRESSOR BUILDING 0 0151111080E SEPERAIOR V-102 NEW COMPRESSOR BUILDING NEW COMPRESSOR C-102 EMERGENCY VENT FUTURE STACK LOCATION COMPRESSOR C-103 ________ ______________________________ -- DOM CUM ROAD NEW COMPRESSOR C-101 7 UIJI'440 302 INLET SEPERAIOR V-101 10 6 PIPE UNE NEW ALOCATION OEF EXISTING BUILDING. NEW COMPRESSOR MAKE UP 011. & USED 01L TANKS 0 0 0 T-104 T-103 1-102 SLOP OIL PRODUCED PR00UCE0 - - WATER WATER TANK LOCATOR 01 N\N\ \\ NN \ \ 1 II 11 11I 11 11 1 1\ 1,, 1II � h 1 \ 1 1 1 NOTES- CONTRACTOR 0IESCONTRACTOR SHALL FIELD VERB? ALL DIMENSIONS PRIOR TO FABRICATION. REFERENCE DRAWINGS REV0510NS A A 0 0(x00 POI LOYV011 91,0 FOR (0151000011 6050 IR W 3' 050(50 701? PIKLR 2/6/07 2/0/07 2/27/07 2/00/07 m0 +S0 Ar NO SY W1n MIM at IVO Mm.w 1.. R10b MIS IPPRIMP Be fps/07 1/00/07 Petroleum Development Corp. Th1601\Vil iasv Wix 7/0 roI M4 RD 000 SD ocsnonori 0AR LWR 2-V GENERAL ARRANGEMENT POST -CONSTRUCTION 2242-01 DUO. W. 0224201 -Id -101 RS Appendix 2 Vicinity Maps tr • Garden Gulch Compressor Site <; P:1EG07036 PDC Compressor SU FIGURE 1 - VICINITY MAP A GARDEN GULCH COMPRESSOR STATION PETROLEUM DEVELOPMENT CORP. SPECIAL USE PERMIT GARFIELD COUNTY, COLORADO SECTION 8, T6S, R96W REVISION DATE: REVISION NUMBER • DRAWN BY: 03/12!07 00 BD ' APPROVED BY: BD PROJECT It EGO036 1.1GISIPDC EG0703o Fig1 ri1Xi, + SCALE: AS SHOJvN CORDILLERAN r'. _...'_� 70 r 1 Garden Gulch�f . Compressor,.St tion (3.5, acres) te, • 71 ' Garden, f/ • = .5 1; • Travel_Route Chevron Property Garden Gulch Compressor Site 0.75 1:24,00 EGO �e!6bl�ti�PreSS9r U c 1 b Oj kd FIGURE 2 - VICINITY MAP B GARDEN GULCH COMPRESSOR STATION PETROLEUM DEVELOPMENT CORP SPECIAL USE PERMIT GARFIELD COUNTY, COLORADO SECTION 8, T6S, R96W REVISION DATE: 0311207 REVISION NUMBER 00 DRAWN BY: BD APPROVED BY: BD PROJEC r # EGO 036 SCALE: AS SHOWN CORDILLERAN Appendix 3 County Assessor Maps U 21 300957 213527300015 1• V)a4 ' 216901100027 .-1uj:1 2171053 00951 217108100952 217118200008 +� 217117200953 i 21709100005.,, 241101300001 Travel_Route Chevron Property Garden Gulch Compressor Site Adjacent Parcels (Parcel #) cf) 4' P:\ b�0os' pbE L�drtSpre$sor. 1 1$NREi W*i Par FIGURE 3 -ADJACENT PROPERTY MAP GARDEN GULCH COMPRESSOR STATION PETROLEUM DEVELOPMENT CORP SPECIAL USE PERMIT GARFIELD COUNTY, COLORADO SECTION 8, T6S, R96W REVISION DATE: REVISION NUMBER 03(12,07 00 DRA1VN BY: BD APPROVED BY: BD PROJECT # EGO 036 SCALE: AS SHONN CORDILLERAN Appendix 4 List of Adjacent Property Owners List of Adjacent Landowners Information listed here corresponds to the County Assessor Map included in Appendix 3. Garfie d County Parcel Number(s) Owner Information Berry Petroleum Company 2169-011-00-027 950 17th Street, Suite 2400 Denver, CO 80202 2135-343-00-957 2171-053-00-951 Bureau of Land Management 2171-081-00-952 p0 Box 1009 2171-081-00-953 2171-081-00-954 Glenwood Springs, CO 81602-1009 2171-081-00-955 2169-122-00-012 Chevron USA Inc. 2171-105-20-002 PO Box 60280 2171-182-00-008 Grand Junction, CO 81506 Encana Oil & Gas (USA) Inc. 2135-273-00-015 2717 County Road 215 2171-041-00-021 Suite 100 Parachute, CO 81635 2170-291-00-005 Pucket Land Company 2411-013-00-001 5460 S Quebec Street, Suite 200 Greenwood Village, CO 80111-1917 Appendix 5 Legal Description and Deed Legal Description: ISECT,TWN,RNG:18-6-96 DESC: SEC 4 A TR CONT 160.93AC EXCEPT A TR CONT J4.25AC DESC: SEC 5 LOTS 14-19,21,23 SEC 6 LOTS 1-18,SW, W1/2SE DESC: SEC 7 W1/2NE, NW, SW, W1/2SE, LOT 1-4 SEC 8 1-5,7 DESC: 12,S1/2SW,NWSW, SESE, 13-15 SEC 17 1,2,4-14,15,17 DESC: ,17, NENE, 1E1/2SE, SEC 18 W1/2NE, NW, SW, W1/2SE, DESC: LOTS 1-4 SEC 20 1-3,6,7,NE, NWNW, S1/2NW, E1/2SW jDESC: SEC 21 LOTS 1-4 SEC 29 LOT 3,4, W1/2NE, NENW AKA DESC: 1BITUMINITE 15, PT OF 16 [CONSOLIDATED #S 3-10,12,13 DESC: GRAND VALLEY #S 1,2,7,8 MIDLAND #S 1-5,G.J.N. #S DESC: 1 & 2 DESC: EXCEPT 28.87 AC. FOR CO. RD. 215 ROW AND SLIDE PCL BK:0377 PG:0111 BK:0285 PG:0169 BK:0274 PG:0228 BK:0268 PG:0532 BK:0268 PG:0531 BK:1712 PG:493 RECPT:679272 BK:1687 IPG:548 RECPT:674194 BK:1663 PG:206 IRECPT:668724 BK:1663 PG:200 RECPT:668723 BK:1655 PG:178 RECPT:666845 BK:1218 PG:223 RECPT:572435 ii-eord,d Apr 22, 1953 -at 1:04 P.H. R c ption No. 18z335 Chas. S. Keegan, Recorder WARRANTY DEED Book 26B' page 523 — ...Ls DEED, Made this 7—day of April, in the year of ..: ;,:;ousand nine hundred and fifty-three, between THE VE2flENT COMPANY, a corporation, organized and existing by virtue of the laws of the State of Colorado, whose ..o Eaton, Colorado, REA L. EATON and CAROL H. EATON, his Callfornia, ?i=J:1MIN H. EATON and GERMAINE EATON, his wife, whose address is -. ( IJ ,(W, Sat, Marina Calf. , NANCY EATON, an unmarried person, wnose address is 5200 South Blackstone, Hyde Park, Chicago, Illinois, MARY EATON PORTER and ROBERT H. PORTER, her. husband, whose address is 2002 Bedford Drive, Midland, Texas, Parties of the First Part, and EATON SHALECOMPANY, a corporation, organized and existing under and by virtue of the laws of the State of Colorado, Party of the Second Part: WITNESSETH,'That the said parties of the first partfor•:i. and inconsiderationof the sum of Ten Dollars ($10.00) and other valuableconsideration, to the said parties of the first part in hand paid by the said party of the second part, the receipt whereof is hereby confessed and acknowledged,.have granted, bar= gained, sold and eonveyed,.and by these presents do grant, bargain, sell, convey and confirm, unto the said party of the second part, ' its successors and assigns forever, all the following described lots or parcels of land, situate, lying and being in the County of Garfield and State of Colorado, to -wit: T. 5 S., R. 96 W. 6th P.M. address. is 3325 Monterey Road, San Marino, French #12 - See. " #25 - Sec. Burbank - Sec. " #2 - Sec. " #3 - Sec. 22: " #4 - Sec. 22: " #4 - Sec. 23: Slot Federal #22 - Sec. Federal #23.L. Sec. 21: #23 - Sec. 22: #24. - Sec. 21: #25.- Sec. 21: #26 -.Sec. 20: 19: Lot 1, NINE* 20: NW,i 22: N1NE1 N. NW 22: S-LNE'-; S NHL N SE,.N SWI S SE SE§SWf SW*SWt - 21: EINE* E-21SE,i, SWiEW;; WINE*, WISE* NEyt Book 260 Page 524 Federal #27 Sec..20: SE1 " #28 - Sec. 21: SWC NI of Federal #29 - Sec. 29: NINE* #30 - Sec. 28: N NWL #31 - Sec. 28: NINE #32 - Sec. 27: NINW Sec. 23: WOW -1, SE,' -,NW , NE -,SW,'-„ containing 2,451.29 acres, more or less; all subject to all restrictions, exceptions, and reservations contained in any United States patent to said lands and any existing public road. Together with all rights of way and contractual rights owned by parties of the first part relating to the location and acquisition of rights of way or easements appurtenant to any portions of the hereinabove described land. This conveyance, however, is made subject to any reciprocal rights with respect to right of way and easements appurtenant. to lands adjacent to portions of the hereinabove described land as provided in the terms of an Agreement between Rea L. Eaton and Union Oil Company of California dated December 17, 1923, recorded in Book 143 at page 7.of the records in the office of the County Clerk and Re- corder of said Garfield County, Colorado; Together with all firstparties' rights in and to the Lindauer Ditch and its appropriations of water decreed to said lands or any part thereof, and all of the rights of the parties -of the first part' to the Lyke Ditch and its appropriations of water for said lands or any part thereof, and all other ditch and water rights owned by parties of the first part which are used on or are appurtenant to said lands or any part thereof; Together with all and singular the hereditaments and ap- purtenances thereunto belonging, or in anywise appertaining, and the reversion and reversions, remainder and remainders, rents, issues and profits thereof; and all the estate, right, title, interest, claim and demand whatsoever of the said parties of the first part, either in law or equity, of, in and to the above bargained premises, with the hereditaments and appurtenances. Book 268 Page 525 TC tf::1 T3 .n. rnt.z.:ced .n, • - y:1). tre rq.Turteeone,s..-,, tne :.!laid party of parL. nnoc.ef:flors ano forever. tne -i' the rirst part, ther nef,rs, tratr,rn, su2r.r.asors an -i assigns, do covenant, . . -c-,. th0 partyof the dr -livery of 1.ne:“" preneutc, they were we'll seized noevc- e.unveyee, as oY g000, sure, perfect, at - law, in fee 1: lawfu.! authority to ccant, seJ. .a d c3nvey tne 3:ime in manner and form as aforcsalo, and that the an: free and clear from all former awl otuer :'rants, crirgainr, sales, lions, taxes, assessments and :neumrances •-‘r whatever kind or nature soever, except general taxes ni,ne.1 for the year 1952 and payable in 1953, and except fakp !re on s,_.1,J prcporty . C5,011075 in faver of Rcieert Latham elDeDeque, Colorado, as les- nec, tne aeove rargained premises in the quiet and peaceable poscession nr the sate, party of tne second part, its successors and assigns, a71inst all znd eveny person er,persons lawfully claiming or to.claim the whole or any part thereof, the said parties of thefirst part shall and will WARRANT AND FOREVER DEFEND, IN WITNESS WHEREOF, The said parties ofthe first part have hereunto net their hands and seals tne day and year first abp-fe written. „.. .Att' ..... THE EATON INVESTMEN 9162J2i2. ONPANY, A 1t5:leererr.ry its President JRea 1,. zatcn ittr (SEAL) ,X\ C Cap. h. .aton (SEAL) ref:,-.,f-flin h. ::,nr.7„n Book 266 Page 626 . `tJ it /24.2Gc• Germaine Eaton (SEAL) anp, a on i. %NU-- SEAL) ar a on or er Robert R. Porter STATE OF COLORADO COUNTY OF Attoe The foregoing instrument was acknowledg&before me this /8L( day of aiii4v6 1953, by MARIE E. DINES as Presi- dent and REX C. EprON as Secretary of THE EATON INVESTMENT CQMPANY, a Colorado corporation. 4 rs A 2 y JMy notarial commission expires My Commission expires June 1211954 ii\xr" ttl:41tness my hand and official seal. Pppi.: ice.., -'2. nc..&conA Notary Public STATE OF CALIFORNIA COUNTY OF1 Ehis� ono he forego i._ instrument was acknowledged before me day of / , 1953, by REA L. EATON and by ...EATON, his ire. 14y notarial commission expires Witness my hand and official seal. T. K. DAHIE, JR., NOTARY PUBLIC In and lr, in, Dunn of In Anat'.nt SUN al C.IIb1Ma MY Corrnint .n Fxr. ,s lin. 2, 1954 STATE OF COUNTY OFd. �v 4 1 d. SS. otary Public ,�-J The fegoi _ instr en was acknewledgedbefore me this' y day ofor11JJ�� t y , 1953, by BENJAMIN H. EATON and b'U RMAINE EATON,s wife. My notarial commission expires Witness my hand and official seal. -1 Notary Public - (/ T. K. PAHIE, JR., NOT.IRY PUBLIC and fed R, Count c, In A' tt',i, Sita 01 C Irr."M Ms Ga:micrtn Etonec Ln. 2, 1954 Book 268 Page 527 ,.:ATE C. JL4:. S. j.. . ,. lox.:Ez-hc: r.tr�m�n:: ta;:+ zLrrrn: L �c-u oe Yore me ti, iu ""-`• d rty o,. / • ../ -;; pct:n•Ja.i corn:_i.ssLon expires , 1953, L,y NANCY EATON, an �. ;otary Public ,J eGPNTY OP The oregc; ng 'h cstrurent was acknowledged before me R. PORP, this/ -‘..4. day or f ,-t`i 1953,;by MARY EATON -PORTER and by ROBERT. her hus::and. ' ?y notarial commission expires YJi tnc ss my }unci ana'of1'icial seal. :l Notary Public Recorded Apr 22, 1953 at 1:0 P. H. Re ::tion No. 182337 Chas. S. Keegan; Recorder Book 263 Face 531 `1./ TnIS.DEED, r.ade U Iy of ,pr_1, thc y,_ .fir. o -Lord 'ie thous .d race hundred and fifty-three...hetween REA L. EATLN and CAROL H. EATON, his wife, whoseaddressis 3325 Mcnterey Road, . San I+larinc, California, BENJAMIN H..EATON and r t ',1NS , D3i,!' ( vLfc, unose .3.:r.cc ;s leas Reb;w 1144 540A4 .w, , Cal:{. gC MCY EATON, an urrn?rried person, whose t x.ress is 5200 South Blackstone, Hyde Park, Chicago, Illincis, MAY EATON PORTER and ROBERT H. PORTER; her husband, whoseaddress is 2002 Bedford Drive, Midland, Texas, parties of the first part,. and EATON SHALE CCMPQNY, a corporation, organized and existing under and by virtue of the iats of the State of Colorado, party of the': second part: WITNESSETH: That the said parties of the first part,. for andin consideration of the sum of Ten Dollars ($10.00) and other valuable consideration, to the said parties of the first part in hand paid by the said party of the second part, the re- ceipt whereof is hereby confessed'. and acknowledged, have granted,_' bargained, sold and conveyed, and by these present do grant, bar- gain, sell, convey and confirm, unto thesaid party of the second part, its successors and assigns forever, all,the following num- bered patented French Placer Mining Claims embracing the follow- ing described lots or parcels of land, situate, lying and being in the County of Garfield and State of Colorado, to -wit: T. 5 S., R. 96 W., 6th P.M,. French No. 1 See. -:31: Lot 4, SASE French No. 2 Sec:_31: Lot 3, N$SE French No. 3 Sec. 31: Lot 2, SINE- French No. 4 Sec. 31: Lot.1, N*NEY French No. 5 Sec: 30: Lot 4, SSE French No. 6 -Sec. 30: Lot 3, N -SES French No. 7 Sec. 30,. Lot 2, SNE French No. 8 Sec; 30: Lot 1, N -NE- - French .No. 9 - Sec. 19: Lot 4, SlSE French No. 10 Sec. 19: .Lot 3, NfSEf French.No. 11 Sec. 19. Lot 2, SNE* French No. 26' Sec. 20: WSWY 29: W N4 French No. 27 See, 20: ESiJ,-I-1 ;29: E NW's French No. 28 Sec. 29: NIS* French No. 31 Sec. 32: SE,'—,NE,'—,—,. gwk 263 Page 532 T. 5 S., R. 96 W., 6th P.M. French No. 29 French No. 30 French No. 31 Sec. 29: S/S1 Sec, 32: NN1 Sec. 32: SNW*,SW*NEk ,..'Containing 2,394.51 acres, more or less; all subject to all restrictions, exceptions and reservations contained in the United States patent issued to Rea L. Eaton covering said lands and any existing public road. Together with all rights of way and contractual rights owned by parties of the first part relating to the location and acquisition of rights ofwayor easements appurtenant to any portions of the hereinabove described land. This conveyance, however, is made subject toany reciprocal rightswith respect, -to rights of way and easements appurtenant to lands adjacent to portions of the hereinabove described land as provided in the terms of an Agreement between Rea L. Eaton and'Union 011 Company. of California dated December 17,E 1923, recorded in Book 143 at page 7 of the records in .the office of the County. Clerk and Recorder of said Garfield County, Colorado; Together with any and all ditch and water rights owned by parties oP the first part whichareused on or are appurtenant to said lands, or any part -thereof. Together with-alland singular the hereditaments and ap- • purtenances thereunto belonging,.or in anywise appertaining, and the reversion.and reversions, remainder and remainders,rents, issues and profits thereof;and all the estate, right, title,• . interest, claim and demand whatsoever of the said parties of the: first part, either in law or equity, of, in and to the above bargained premises, with the hereditaments ' and appurtenances. TO HAVE -AND TO -HOLD the same premises abovebargained and described, with the appurtenances, unto the said partyof the second part, its successors and assigns forever. And the said parties of the first part, for themselves, their heirs,....:: executors, administrators, successors and assigns, do covenant, cr -• . _.._�_ sf the_r.:;._e _.,-- fe- , of:.t.e•sra nde PeaceLje. 1:; '_r3 fo _uresai-.i,. ,- •t., li forme `:p+5 Cts t - r nner c are free ard clear from sales, _ns, axes, asscs,:mentsan'r.c.rbra ..,sten__ kind or nature stayer, e.. _k.t zcr:cral -tax -e_ the year _3952 and payable in and except a ;,razing ars farm lease agreement Sated Janu- ary 18, 1953 from parties of the first- part .to Robert Latham and JohnH. Latham of DeBegue, Coloraio, asl lessee, covering said property, and the above bargained premises in the quiet and peaceable possession of the said party of the second part, its successors and a r_Lrs, aCainst ali.and every person or per- sons lawfully claiming orto claim the whole or any part there of, the said parties of the first part shall and will WARRANT AND FOREVER DEFEND IN WITNESS WHEREOF, Thesaid parties of the first part have hereunto set their hands andseals.the -day aidyear £i.rst aoove written, , (SEAL) Rea L. Eaton `, i\1" (Sz L) Carol H. Eaton f? � (SEAL) `-d�enjamin. H. Eaton l$01r/poi[e (.T 2 k(.. -(SEAL) Germaine Eaton i N�1Sey Eaton Book 268 Pacer 534 • . STATE OF CALIF COUNTYOF _.._' .. ...011#e foregoi g strument was acknowledged- before me Lhi^ day ofbi 1953, by REA L. EATON and %` TSyL CC RC EATON, s wife. r My notarial commission expires .4 al RNIA to t i eQ` tN,I) s Ea own Porter Robert . orter t 33. Flts.Lt'.- ... Witness -my: hand and official: seal. STATEOF r� 43 CQ{JMTY OF Ll7 e =�. Notary Public T, K. MADE, JR., NOTARY FUBLIC b awl br Il <cunlr or Les Andes. stall of Gllenat by Conrtwss:an Expires Jan. 2, 1954 BS.. Jfie foregoing estrament was acknowledged before me this f1day of // 1953, by BENJAMIN N. EATON and b RMAINE EA'PO , his wife. `.` My notarial commisslonlexpires Witness my hand and official seal. STATE 0: "COUNTY OF Kt.; almir'otaryo c T. I( DAHLE, JR., NOTARY PUBLIC r. •.c Lia 6r Canty Of Lo: estates. Stet et ailbml. My r. mrisier, Expires bn. 2,1954 i 53.' The forego ng nstrument was acknowled ed before me • ''th1il. ,, day of - , 1953, by NANCY EATON, an ytnmarried person. • My notarial commission expires Witness my 'hand andofficial seal.. STATE OF COUNTY OF M.T. foregoi nstrument was acknowledged before me '"t HT o 2ORT t, l� / , 1953, by MARY EATON PORTER ��i, RT He P , erS{ Fi�Iiusoand. My notarial commission expirea. Witness my hand and official seal. • .v -SS. Notarry Pubii� le LNC DAHLE, JR., NOTARY PU bM br bop County Of toe ne.'n. Stela « Canis ,. My Commwion brv.et lin. 2. 1954 tOel 3 ook'27= Page 228•,1 Rodorane, 2L W3,cn, ,RaorPta 1,44h3 ^e='. .: SPECIAL 14ARRA1.\TYi`DED Rea L. Eaton to Eaton Shale Colpany ... eJ,` V;THIS DEET, P9ade this p{,,day of ('. A. D. 195 't between REA L. EATON, of the County of Los Angeles, State of' California, of the first. part,' and EATON SHALE COLPANYy', a corporation duly :organizedi and existing under and by virtue of 'the laws of the State of Colorado, of the second part;-. W 1 T-N'E S S E T'1 That the said party o±'the f-' et' part, for' and in con- n of the sum of .Ten Dollars` 10.00 'land other ood-and consideration tome said art of the first 'art in sideratio ( ) g ga1uabie ,' P ,y p hand paid„bi the said party of;the second part, the ,receipt erhere of is hereby confessed and acknowledged, hap granted; bargain sold and conveyed and�by these "pregents doeh. grant, , ,convey' uric} con3'irm !unto the "said party of the second part, it land ed, s bargain sell,:. successors, and assigns, forever, all the foZlowiel described 1, situated, ';lying and. being in' the ounty of••Garfield, ,State 07 n Qo1oradot�,jto wit. Towmship'6 Sou h,:"Range 96 'West' 6th P: c. 29 W§NES 0'1.1'201:g 20 ESI A11 theii•SE except that; part ..L, of the XINp conveyed `by John G Crawford- d Lena. Crawford t"o'• Doris' J;:Kerlee'by that 'certain `p Warranty:Deed dated'September 12, 1949,yrecorde4 October •LO,;11949, '' ;as.Document No. 1169987, in Book 245,, .age 332;Garfield County, Colorado; ;records; { , sudject to I right,'of way„easements onand lover said land,'noW:apparing of record in. ,4t4e office of ,tiie.4.Clerk. and 'Recorder of 'Garfield .County, Colora4o1 •;`•,': together,;witha proportipnate ditbI and wate right fgr.;the irr?gabl'e;�and ixi andto.the angle Aitch qut ,of Parachute Creek', and' ' Priorities Nos. 150 and 207 N adaudicated to said :ditch; also -4/12 of'the 1/6.interest.of.. G. P.'Crawford in the original construction`', --kof•the'Low Cost Ditch andin Priority No. 83 ,adjudicated to said ditch'°and 'all of the 1/6 interest af G;'P. Crawford in the First en- r7largenient of -:said Lou.Cost titeh,Wand in P iority No.132. adjudicated thereto, and parr and all other water and ditch rights be- longing _frith• or.appurtenant to. said lands. andrappurtenanoes Together• with all:: and singular the�.'hereditaments �thereuntotbelonging, or in.'anywise:appertaining, and -the reversion `and reversions, remainder: and remainders,', rents,issues andprofits xriereof;'.anl all the estate, right,;°title, interest, claim and;de- �m=^�ofthe said arty •of the first part, either inlaw hereditame appurtenances; '0 HA1 b b rgained aid described ANY the said party 'of Torever..,.• or equity;, of,in and to the above barg'ained,premises, with the nts and premisesa ove a ;EATON SHALE COMP a(311 -4',2S. a�s�iBns, And the said party of the first part, for hdmserf and • heirsiand assigns,°covenan• ts �nd agrees to and with to said tyof'khe second party •,its successors an'drassigns•,.;the above argained•,Frepuses,•2n the quiet a d'peaceable possession of the aid, party of t}�e ,second part; Its successors and assigns,, against ll,and every person or per'sons'lavfully c aannng'or to claim the _; • ile or;any,pd' thereofblthxough or ti4der the said party of -I ,the first;• past, to' WARRHI�T �hi9D FOREVER `DEFEI D �exceft ;righ of way asements on sand �o ei ;aid,land roce� appearing- of record in the. .:office o£`tbe Clerk and Rec'*der,•oi'�Garfield:County. Cdlorado.[ HOLD the said with:the appurtenances,Tunto', the second part, its sucoes Book 2A.., II STATE Oh , ) r>;COUNTY OF Tle foregoing Specia betore.me t9is /it clay 'of c REA /..' R4TON. My commission expires �lQ� 411 fl°l 131888 my ban4,andi, offieial • rranty Deed was acknowledged e A. 0, 1953, . by Recor.aedi at 1 T M neo r 23, 1953 ,Reception• f f 65 Chas S, Keegan, N9 `812IlLaariedCArc:9! sLTlsVActION os JUDGMENT v Tb arndtoNnebinnon Pte. cnt ,nobnmps Ltgo181an1u, IBIS bWne St, pe v¢r, poi V STATE OFOOLORAAO, , ITf riFfitTjf .TTIS CICk, OR r I AR; .tl t'll t }ss rbP.CE COITi`T 0L TPPIf S i : Ooanty. > C CA+TOP, J'. ( P, f I ,IAT nil MATTER,OF 'Le;onard JT. fI1 106 JsaWeiir blaY'tao ,oluiadd *juin SahaT61,06; AltiSiraf6A64„ .ciiotN,twlthm and for the inunh of (a.t9.0 pJ d'1 , _ ha • a c stain Jidgment had un, sal Court, do the 'alcove entitledcause on the I f day of yprt 19 Jn rior damages and costs of snit, and SvdgPtent Eoo�C D , `'. pe `�� .b the Records o4 the Curt in J} Fs.1] 9T I •J HPTs ,,fibra 41s: .— 01,(1....51.':.0.t.tk/ID P aiutiff.' and'agaivst Xl7S r(t.J A b£ � Aktfld a Roa•x4` ALY. , �1.7.tl LL A l �n 3 o ba ' noa,`,77 , 't, r, t6o De�kOndaut, �beenifLI s belled' n } } P P5 PPears r4m tho Reao ds note remamidl g da m offtcep' 1V�1«aa s DFp hand and tL� sen) oIX9atd50All[3 at : 1 t C 101 1.mo ntyafofe ttid'3his �1AL, r ' :da oft z` 1' i. o Cin the, Recorded at '}' 10 `o clock i. M. u...... " 955 FTtoLou 1?469qReeeptidWa 1 n0]:9 Ghia ,- order. ..-,. THISbEEb> Tlado thr-,of our tni rho year do of ✓ne. y Lord one thousand vino hundred mid fifty_fjVG bot,veon Doris J. 'iLer.lee' Is g Y d T I RECORDER'S STAMP � of Colo, County County of Garfield of the ... . t do, df the first part,, and and State Eaton ShaleCompany a corporation organized and existing under end by virtue of the laves of the State of Colorado a' of the se rand part: 1V1$N1i5sL•Tn, That the said party f the iliat palrt,. for and 1'en Dollars 010.00) and other to Do said, partythe good and in ns consideration of the Sum -of 'i hereby aid, part and acknowledged,f fispart in hand paid byTp r gable COn pariCratien Hlherbnq, bargained, said oat of the ed;secad part, Presents r e t s does is grant, bargain, sell, convey 3 firm, ed, bargained, s ] � all the following ell, conae lot d confirm, unto theyof d and apart, its and by Clime d assign d orev County rho of Garfield or parcel of land, situate, 7 lhS aand being part, its successors and assigns forever, and State of Coloxodoyto_nitd in the The 3NEir;except a 60 foot strip heretofore conveyed to the'Eaton In vestment Company, as described in and by Document No, in book 125 at page 311, Garfield County, records together iortionate.water and ditch rights that area i recorded and that part of the d g gather witgipro_ of. John' q, Crawford Ni of the NWISE4 lying westtofathe twester1y line together recorded in'book said 15line pagen13, Garfield,Countybyp Document Icib.to said lams proportionate water and ditch rights that,are a all in Sec. 20, , andds, together With all range rights and 6r permits pp.r., ant s d lanenah PrWhere ib also hereby conveyred heright to use the north 60. feet bf the NE SW PPiirtenant to said lands part 4 of said Section. 29 Party of the First P , ens a drivewayht ofor l.tvestock, TOGETHER art reserves the right of with all andpibpdar the hered,taments.endmpi �t 7�an �Pp�ossessiondof s nppertuinfag, and the.eversion and reversions, re ter {y gib the 55IIdaad 'the estntey right, ado, Interest alaipi and demAnd whatsoevernADcaFa it' e'ddWel�al 1 £ i1R ,�.hs p a nm rider nus remainders, rents; issnea Add Pit nt8 the sof 1 •. or; eglitty, of, In and to the abpve ;bargainedof r sold part o and all Preiaisesp f r6ta firer�part, alter id law � ,; 'p0 HAVE AND TO HOLD the with gained and d e c and with the sold ar ' (aid premises above bargained sed described with !h a i, hep fY of thy Part, its successors and asd,gns forever. And {fio' said 2+tei f her, intra, executors, and administrators, ° andrtcnan es, nhta the ' fhb laid art Pnrt'y .,of ;the first Inr P rY of: the second Pari, Ib db e$ oatete timba parr, p k successors and nvsigne, flat I grant, .gam and mire.] id and j4jth thea) Presenia, she is well seized of he remi ye the time of the ure: ilinh 1ude2ea5lbl es t p sea obovo;convCYed, and del}very, of � P talo of Inheritance;. in law, in tee eimpie, and bas as , f good sure grant bargain, sell pci•fect ahsoluko and and convey the s good Mat, full saw an ail%rmerland olbor grants, ba ams himanner hews, axe form vents aid, and tbt the s ms are fi'eoand eleaui bfro • n Eaerer : .traos sales, ]tend; taxes; assessments and fncamhrances of whgE¢ier kind of pnhr§ , 'axes a taxes for the year 14551 • , and the nbogo bargained premises in the quiet and peaceable possession of the said party of fbo second a 1(cresspts and alsigna against eh and every person or persons lawfully] chiminget toOahu Mecca£ rho bald path. of the that part shall and I Patio frit tlq rtlol¢ of auy rf`al{ � I WARRANT AND FOREyER )SiFbND YN 7VITVEsg WJIEPEOF, The said pn of rid dsal the day and year first above t °List part ba herepnto net her hand Igaed Seated and Delivered in thei$eacnco of `;- tSEAI,j; . - [ssAtd SEALj Si'sS,TE er coienano, County oY GARP ' •�lELD rf(pII *pmrpt ttas aalmowledged berate ma q • re's J Itei'jbe Br§arotd.AoA I rtT ,apbI n . 111 lT Cl.Mfr5 R b net s ➢.neka. 161/.-0E ace a St.Dauer. coio.'�- i Recorded at 10:24. A.M. Reception No. 235128 June 22, 1966 Chas.S.Keegan,Recorder. .7693' Book 377 Page 111 SPECIAL WARRANTY DEED • THIS DEED, Made this /.p �L day of 71)4", 2 ) 1966, between UNION OIL COMPANY OF CALIFORNIA, a corporation duly organized and existing under and by virtue of the laws of the State of California, Party of the First Part, and EATON SHALE COMPANY, a corporation duly -organized and existing under and by virtue of the laws of the State of Colorado, Party of the Second Part: WITNESSETH, That .the said Party of the First Part, for and in consideration of the sum of TEN AND MORE DOLLARS to the Party of the First Part in hand paid by the Party of the Second Part, the receipt whereof is hereby confessed and ac- knowledged, has granted, bargained, sold and conveyed and by these presents does grant, bargain, sell, convey and confirm unto the said Party of the Second Part, its successors and as- signs forever, the following described lots or parcels of land situated, lying and being in the County of Garfield, State of Colorado, to wit: South One Half of Federal No. 29 Placer Mining Claim, embracing the South One- half of the Northeast One-quarter (32/2 NE -1/4) of Section Twenty nine (29), con- taining 80 acres, more or less; The North 198 feet of the Virginia No. 5 Placer Mining Claim, being the North 198 feet of the South One-half North One- half (S -1/2N-1/2). of Section Thirty three (33), containing 24. acres, more or less; • The West 32 rods of Federal No. 36 Placer Mining Claim, being the West 32 rods of the Northwest One-quarter of the Northwest One-quarter of Section Thirty three (33), containing 16 acres, more or less; • Consolidated No. 12 Placer Mining Claim, comprising the South One-half of the Southeast One-quarter (S-1/2SE-1/4) of Section Thirty four (34) and the South One-half of the Southwest One-quarter (S-1/2SW-1/4) of Section Thirty five (35); Bbok 377 Page 112 Consolidated No. 13 Placer Mining Claim, comprising the North One-half of the Southeast one-quarter (N -1/23E-1/4) of Section Thirty four (34) and the North One-half of the Southwest One-quarter (S-1/2SW-1/4) of Section Thirty five (35); A!'/agw'/ Bituminite No. 15 Placer Mining Claim, being the Northeast One-quarter of the Southeast One-quarter (NE-1/4SE-1/4) of Section Thirty five (35) and the North One-half of the Southwest One-quarter (N-1/2SW-1/4) of Section Thirty six (36); That part of Bituminite No. 16 Placer Mining Claim constituting the Northwest One-quarter of the Southeast One-quarter (NW-1/4SE-1/4) of Section Thirty five (35); Containing 480 acres, more or less; All being in Township Five (5) South, Range Ninety Six (96) West of the Sixth (6th) Principal Meridian. Consolidated No. 3 Claim, comprising the South One-half of the Northwest One- quarter (S-1/2NW-1/4), the Southwest One- quarter of the Northeast One-quarter (SW-1/4NE-1/4) and Lot Two (2) of Section Seven (7); Consolidated No. 4 Claim, comprising the North One-half of the Northwest One-quarter. (N-1/2NW-1/4), the Northwest One-quarter of the Northeast One-quarter (NW-1/4NE-1/4). and Lot One (1) of Section Seven (7); Consolidated No. 5 Claim, comprising the South One-half of the Southwest One-quarter (S-1/2SW-1/4), the Southwest One-quarter of the Southeast One-quarter (SW-1/4SE-1/4) and Lot Eighteen (18) of Section Six (6); Consolidated No. 6 Claim, comprising the North One-half of the Southwest One-quarter (N-1/2 SW -1/4), Northwest One-quarter of the South- east One-quarter (NW-1/4SE-1/4) and Lot Seventeen (17) of Section Six (6); Consolidated No. 7 Claim, comprising Lots Thirteen (13), Fourteen (14), Fifteen (15) and Sixteen (16) of Section Six (6); Consolidated No. 8 Claim, comprising Lots Nine (9), Ten (10)., Eleven (11) and Twelve (12). of Section Six (6.); Book 377 Page 113 Consolidated No. 9 Claim, comprising Lots Five (5), Six (6), Seven (7) and Eight (8) of Section Six (6); Consolidated No. 10 Claim, comprising Lots Three (3), Four (4), Five (5), Thirteen . (13) and Fourteen (14) of Section Eight (8); Containing 1307.56 acres, more or less; Lot Seven (7) of Section Eight (8), con- taining 42.92 acres, more or less; Lots One (1) and Eight (8), also known as the East One-half of the Northeast One- quarter (E-1/2NE-1/4) of Section Eight (8), containing 85.49 acres, more or less; All being in Township Six (6) South, Range Ninety Six (96) West of the Sixth (6th) Principal Meridian. All that part of Lots One (1), Five (5) and Eleven (11), and all that part of the South One-half Northwest Orbe -quarter (S-1/2NW-1/4) and the Northwest One-quarter Southwest One- quarter (NW-1/4SW-1/4) of Section Four (4), Township Six (6) South, Range Ninety Six (96) West of the Sixth (6th) Principal Meridian, Garfield County, Colorado, lying Westerly of the center of Parachute Creek, as now located, and Easterly of the Westerly line of said Section Four (4), more fully described as follows: Beginning at a point in the center of Parachute Creek, said point being on the North line of said Section Four (4), whence the P. C. Quarter Corner of the North line of said Section Four (4) bears East Five Hundred Seven and No One -Hundredths (507.00). feet; thence along the center of said creek South Seventy Degrees Fifty seven Minutes West (S. 70°. 57' W.) Three Hundred Thirty and Twenty Hundredths (330.20) feet; thence South Eight Degrees Thirty six Minutes West (S.. 08° 36' W.) Three Hundred Thirty two and Seventy One Hundredths (332.71) feet; thence South Twenty one Degrees Seventeen Minutes West (S. 21° 17' W.) Seven Hundred Eighteen and Ten Hundredths (718.10). feet; thence South Forty Degrees Twenty nine Minutes West (S. 40°. 29' W.) Seven Hundred Fifty four and Ninety four Hundredths (754.94) feet; thence South Thirty four Degrees Twenty. one Minutes East (S. 34° 21.' E.) Two Hundred Ninety Two and Thirty Hundredths (292.30) feet; thence South Thirteen Degrees Fifty Nine Minutes East (S. 13° 59' E.) Three Hundred Eighty six aid Seventy Hundredths (386.70). feet; thence South Three Degrees Eighteen Minutes West (S. 03.° 18' W.) Three Hundred Four and Eight Hundredths Bbok 377 Page 111 (304..08) feet;. thence South Twenty three Degrees .Ten Minutes. West .(S.. 23° 10'. W.) Four Hundred Twenty three. and Ten Hundredths (423.10). feet; thence South Seventy four Degrees One Minute West (S. 74° 01' W.) Five Hundred Fifty four and Twenty eight . Hundredths (554.28) feet; thence South Seventeen Degrees Four Minutes West (S. 17° 04' W.) Six Hundred Sixty nine and Ten Hundredths (669.10) feet; thence South Eighteen Degrees Twenty four Minutes West (S. 18° 24) W.) Two Hundred Fifty seven and Sixty Hundredths (25.7.60). feet; thence South Two Degrees One Minute West (S. 02° 01'W.) Six Hundred Thirty four and Thirty. Hundredths (634.30) feet; thence South Twenty seven Degrees Eight Minutes West (S.. 27° 08) W.) Five Hundred Eighty One and Twenty Hundredths (581.20). feet;. thence South Ten Degrees Thirty one Minutes East (S. 10°. 31' E.) Three Hundred Thirty. eight and Ninety Hundredths •(338.90).feet; thence North Eighty fiveDegrees Fifty. seven Minutes Thirty Seconds East (N. 85°. 57' 30". E.) Two. Hundred Seven and Eleven Hundredths (20.7..11)' feet;. thence South Eleven Degrees Eighteen Minutes East (S.. 11° 18' E.) Four Hundred Nine and Eighty Hundredths (409,80). feet; Thence North 'Eighty. three Degrees Thirty eight Minutes East .(N.. 83° 38' E.) Two Hundred Eighty. three and Sixty two Hundredths (283.62). feet;. thence South Nine Degrees Fifty-eight Minutes East (S..' 09.° 58' E.) . Three Hundred.. Fifty six and Teri Hundredths • (356.101 feet; thence South Thirty six Degrees Thirty. three Minutes West (S.. 36° 33' W.) Two Hundred Eighty. five. and Thirty. Hundredths (2.85.30). feet. to a point on the . South line of said Section Four (4); thence West Nine Hundred Fifty. Eight and No One- . Hundredths (958.00.). feet along the South line 'of said Section Four (4.). to the South-' westcorner of said Section Four (4);. thence North Five Degrees Zero Minutes East (N.. 05.° 00) E.) Two Thousand Eight Hundred Thirty. . eight and No One -Hundredths (2.8.38.00.) feet . along the Westerly line of said Section Four' J4.). to the West Quarter Corner of said Sec- . tion Four (4); thence North .Three Thousand Six Hundred Eighteen and .Seventy. eight Hund- redths' (3618.78) feetalong the Westerly line 'of said Section Four' (4). to the North-� west corner of said Section Four (4.).; thence . East Two .Thousand Three Hundred Twenty:four and Forty Hundredths (2.3.24:.40). feet. along . the' North line of said Section Four (4.) to. a point in the centerof said creek,. the point of beginning. EXCEPTING therefrom .that certain portion ..thereof. .containing 4.25. acres, more or .less, which was particularly des'oribed 'in .the deed from M. E. Granlee to "District' No.. 7 in Book 377 Page 115 Garfield County", dated May 20, 1903, re- corded July 26, 1915 in Book 100, Page 61, of the records of the Clerk and Recorder of Garfield County, Colorado, as follows: "Starting at the north west corner of the south west quarter of Section 4, T.6 Range 96 West (This corner is located on the south side of a gulch) running down the gulch south of East 582 ft.. to the creek from thence down the creek west of south 207 ft. from thence west 336 ft. from thence north 363 ft. containing about four and one quarter acres." The above described parcel of land contain- ing 156.68 acres, more or less, after said exception. All that part of the South One-half Southeast One-quarter of Section Thirty six, Township Five South, Range Ninety six West of the Sixth Principal Meridian (S -1/28E-1/4, Sec. 36, T. 5 S., R. 96 W., 6th P. M.), Garfield County, Colorado; lying Westerly of the center of Parachute Creek, as now located, and East of the North-South center line of said Section Thirty six (36), more fully described as follows: Beginning at a point in the center of Parachute Creek, said point being on the South line of said Section Thirty six (36), " whence the P. C. Corner on the South line of said Section Thirty six (36), being also the North Quarter Corner of Section Four (4), Town- ship Six (6) South, Range Ninety six (96) West of the Sixth (6th) Principal Meridian, bears East Five Hundred Seven and No One -Hundredths (507.00). feet; thence West One Thousand Six Hundred Eight and Ninety six Hundredths (1608.96) feet along the South line of said Section Thirty six (36) to the South Quarter Corner of said Section Thirty six (36); thence North Nine Hundred Forty Nine and Ninety nine Hundredths (9.49.99) feet along the North-South center line of said Section Thirty six (36); thence East Two Thousand One Hundred Thirty three and Sixteen Hundredths (2133.16) feet to a point in the center of said creek; thence South Eight Degrees Fifty five Minutes West (S. 08° 55' W.) One Hundred Ninety and Three Hundredths (190.03). feet along the center of said creek;. thence South Seventeen Degrees Eight Minutes West (S. 17° 08.' W.) Four Hun- dred and No One -Hundredths (400..00) feet along the center of said creek;. thence South Thirty five Degrees Fifteen Minutes West (S. 35° 15' W.) One Hundred Sixty seven and Fifty Hundredths (167.50) feet along the center of said creek; thence South Nineteen Degrees Forty four Minutes West (S. 19° 44'• W.) One Hundred Ninety one and Forty Hundredths (191.40). feet along the center of said creek; thence South. Seventy. three Degrees Forty. four Minutes West (S. 73° '44' W.) Two Book 377 Page 116 Hundred Twenty five (225.00.). feet along creek to a point on said Section Thirty of beginning. and No One -Hundredths the center of said the South line of six (36), the point The above described parcel of land contains 43.32 acres, more or less. Containing in all, 2235.97 All subject to any and all tions and reservations contained in the acres, more or less. restrictions, excep- United States patents to the above described lands, and any existing public roads, and subject to the easements granted to Public Service Co. of Colorado by the instrument recorded as Document No. 191764 in Book 288 at Page 45, and to the Board of County Commissioners of Garfield County, Colorado, bythe instrument recorded as Document No. 197235 in Book 298 at Page 425, of the Records of the Clerk and Recorder of Garfield County, Colorado. Excepting therefrom and reserving to Party of the First Part all water rights of any kind or character not ap- purtenant to the lands above described, and as to those water rights which are appurtenant to said lands, only all such as are adjudicated in absolute or conditional decrees are hereby excepted andreserved, together with such ditch rights and easements as are or may be necessary for the effective use of such water rights and also together with the rightto transfer such water rightsto other lands and uses; but .conveying hereby any and all wells and springs located on said lands and any and all unadjudicated water rights appurtenant to said lands or any part thereof, together with any and all ditch rights used in connection with the enjoyment of said wells, springs, and unadjudicated water rights. Also reserving•to Party of the First Part with the same effect as if, granted, bargained, sold, conveyed and confirmed to it by Party of the Second Part, as to all lands Book 377 Page 117' where the oil and gas shall not have been excepted from the patent, an oil and gas royaltyin value measured by andequal to two and one half percent (2-.1/2%) of the market value of all oil and gas that may be produced through conventional oil well drilling methods and saved and sold from all forma- tions below the base Of. the Green River Formation of Eocene Age underlying all the said above .described lands. Said royalty shall be free and clear of all costs of mining, drilling, producing and saving said oil and gas,:but shall be subject to theproportionate burden of taxes levied upon the severanee,.production or sale of said oil andgas. Said royalty shall be paid monthly, but shall not bebased upon any such oil or gas used for drilling or operation purposes or unavoidably lost.. This reservation is subject to. the following distinct and express understanding and agreement,. namely, that it does not include oil shale or oil, gas or other minerals or derivatives secured through oil shale operations from any formation and is limited to oil or gas secured through conventional oil well drilling operations. It is further distinctly understood and agreed that said royalty shall attach only to oil and. gas that may be actually produced from any formation below the Greeri River Formation of Eocene Age and that there shall be no obligation upon the Party . of the Second Part; its successors or assigns, at any time or for any reason, to drill for oil or gas at any time or in any particular place or at all, and that said royaltyshall be payable and continue only if Party of the Second Part, its suc- cessors and assigns, shall in itsor their sole discretion drill for oil or. gas on said land by itself or. through lessees . through conventional oil well drilling methods and .secure production from any. formation .below the base Of the Green River. Formation of Eocene Age as a result thereof. Book 377 Page 114 Together with all ri6hte oT way and contractual ri=hta owned by Party of tha Pirst Part relating to the loca- tion and acquisition of rights cf way OP easements appurtenant to any portions of the hereindoove deacribeu land, Together wit:, all ah2 singular the hereditaments and appurtenances thereunto De -longing, or in anywise appertain- ing, and rhe reversion and reversions, rer,aindnr and remainders, rents, issues and profits the:ot:; and all the estate, right, title, interest,. claim and demand whatsoever of the said Party of the First Part, either in Law 'Pr equity, Qf, in and to the above bargained premises, with tha hereditaments and appurte- nances; TO NAE AND TC KILL) the saLc,premioes above bargained and described, with the appurtenances,. unto EATON' SEALCDiiPAHY1 the said ?arty or the Ssca'nc };;r its sueeessr,rw and assigns forever. And the said ?arty cf. the First Part, for itself and its successors and assigns, 00e3 covenant, grant, bargain and agree to and with the ma=d Party cf the Second Part, its successors and assigns, tha above bargained Fremieas in the quiet and peaceable posseaaion cd the said Party of the $eeond Fart, its 511 Oessors and assigns, against all and every person or persons lawfully claiming or to claim the whole or any part thereof, by, through or under the said Peaty of Cho First Fart, to 'WARRANT AND 3OREVE1 DSFEED, except general taxes or the year 1566 and therea±ter, subject to :he inclusion of said land Ln the 'Tisane River Hospital District, the Bluestone Water Conser- vancy District, the Orand Valley Fire Protection District anC the Book Cliff Soil Conservation District. - EXECUTED by the Party or the -First Pars the day and year tirst• ;hereinabove written, by its. duly €uthorised office .2,,,iacith' it.e corporate seal affixed. '. • maim OIL 00AFANi Ob` CALIFORNIA • / r` / :C.3,`� Thric ?residanr STATE OF CALIFORNIA ) Book 377 ss. Page 119 COUNTY OF Los Angeles ) The foregoing Special Warranty Deed was acknowledged before me this 7a day of (/,o_-Lc.c_ � , 1966, by 11 o Charics P. Parker ' ,.the- ' //,cca. • • President, and Pa W. Cairns , the Zssistant' Secretary of UNION OIL COMPANY OF CALIFORNIA, a corporation duly organized and existing under and by virtue of the laws of the State of California. Witness my hand and official seal. My Commission expires Sept: 22, 1967 �t- My Commis's on;E?xpires Septemner 22, 19$ • (SEAL) f;FV IC CfLIAJNIA 3 3ra-11 [:r!,` U j t'NCrLb (OUNIY „ pp Notary Public • w O r• a ° aw 0 O w O CC CC N oz J V 2 pO 11.1j CC 9a x stn 0 0 u 0 3 lg a tl.iCa o B^'r 726 p.SE 83 ekili DEPARTMENT OF STATE CERTIFICATE• g, NATALIE MEYER , See0ela4y n/.rWafe 1 of (6eS144 0 WOldtat7//0 /e.44 Cesfgjs llal according to the records of this office, a Certificate of Merger dated April 24, 1986 was issued upon the merger of DATED: EATON SHALE COMPANY (Colorado Corporation) INTO CHEVRON SHALE OIL COMPANY (California Corporation) THE SURVIVOR 'October. 28, 1987 SECRET Any OF STATE 11111111111111111 1111 1111 1111111 11111 111 1111 1111 1111 I(Q551\1S 666845 01/11/2005 12:54P 81655 P178 M RLSDORF 1 of 7 R 36.00 D 0 00 GRRFIELD COUNTY CO CHEVRON U.S.A. INC. CERTIFICATE OF ASSISTANT SECRETARY I, Hongyan Xun, Assistant Secretary of Chevron U.S.A. Inc., a corporation duly organized under the laws of the Commonwealth of Pennsylvania (the Corporation"), do hereby certify that annexed hereto are full, true and correct copies of Certificate of Merger filed with the Department of State of Pennsylvania on April 30, 2002 and Agreement and Plan of Merger by and among Chevron U.S.A. Inc. and Chevron Shale Oil Company. EN WITNESS WHEREOF, I have hereunto set my hand and the seal of said Corporation this 4th day of November, 2004. State of California City of San Ramon County of Contra Costa ) ss CHEVRON U.S.A. ENC. Wngyan Xun Assistant Secret On November 4, 2004, before me, Simon Lee, a Notary Public in and for the State of California, personally appeared Hongyan Xun, Assistant Secretary of Chevron U.S.A. Inc., personally known to me to be the person whose name is subscribed to the within instrument and acknowledged to me that she executed the within instrument in her authorized capacity, and that by her signature on the within instrument, the person or the entity upon behalf of which the person acted executed the within instrument. WITNESS my hand and official seal. Signature SIMON LEE si COMM. #1352816 ro NOTARY PUBLIC -CALIFORNIA p a SAN FRANCISCO COUNTY ►*� My Comm Expims Apo 22, 2006 erroarcrcaotaorryak 111111111111111111111 111111111111111111111011111 III1 666845 01/11/2005 12:54P 81655 P179 M RLSDORF 2 of 7 R 36.00 D 0 00 GARFIELD COUNTY CO ,mFw'ro CSC PENNSYLVANIA DEPARTMENT OF STATE CORPORATION BUREAU Entity Number 149371 Articles/Certificate of Merg4r (I5 Pa.CS,) 7f Domatio Business Corporation (§QQ 1926) Domestic Nonprofit Corporation (§ 5926) Limited Partnership (§ 8547) N me The Prentice—Hall Corporation System, Inc. Adams Commerce Drive, Suite B City stab Harrisburg, PA Zip Code 17110 Fee: $ 108 plus S28 additional for each Party in additional to two Doenmeat will be returned to the a me and address yon enter to the left Filed in the Departmcntof Q.. State 0 3 0 2002 Atari AtYfING S ofthe Gommonwcalth e In compliance with the requirements of the applicable provisions (relatinto articles of merger or consolidation), the undersigned, desiring to effect a merger, hereby state that I. The name of the corporation/timited partnership surviving the merger is Chevron D.S.A. Inc. 2. Check end compkte ane of the following: ]L The surviving corporation/limited parNeship is a domestic businesskonprofit corporation/limited partnership and the (a) address of its current registered office in this Commonwealth o4 (b) name of its commercial registered office provider and the county of value is (the Department is hereby authorized to correct the following information to eooform to the records ofthe Department): Star Zip Gentry (a) Number and Street City (b) Name of Commercial Registered Office Provider c/o The Prentice—Hall Corporation System, Inc. County Dauphin County The surviving corpontion/limited parbership is a qualified foreign buiness/nonprofit corporation /limited partnership incorpotated/fomxd undo the laws of and the (a) address of its current registered office in this Commonwealth or (b) name of its cormnercial register« office provider and the cormty of venue is (the Depanment is hereby authorized to correct the following information to conform to the records oftbe Department): (a) Nunber and Street City State Zip County do (b) Name of Commercial Registered Office Provider County The surviving corporation/limited partnership is a nonqualified foreil partnership incoeporated/fomxd wader the laws of laws of such damicitiary jurisdiction is: Numbs and Street City n business/nonprofit eorporation/limitcd and the address of its principal office under the State Zip 1111111 11111 111111 11111111 EMI 11111 Ill 1111111111111 666845 01/11/2005 12:54P B1655 P180 M RLSDORF 3 of 7 R 36.00 D 0 00 GRRFIELD COUNTY CO DSCB:15.1926/5926/8547-2 3. The name and the address of the registered office in this Commonwealth or name of its commercial registered office provider and the county of venue of each other domestic business/nonprofit corporation/limited partnership and qualified foreign businessMonptofit corporation/limited ownership which is a party to the plan of merger are as follows: Name Registered Office Address Commercial Registered Officc Provider County Chevron 2730 Gateway Oaks Drive Corporation Service Sacramento Shale Oil Suite 100 Company Company Sacramento, CA 95833 4. Check, and if appropriate complete, one of the fallowing: The plan of merges shall be effective upon filing these Anfcles/CatiUate of Merger in the Department of Slate. X The of mergershallbe effective on: May 1, 2002 at 11130 A.M. , . EST pima Date Hour 5. The mane in which the plan of merger was adopted by each domestic corpaationflimited partnership is as follows: Manna of Adoption Adopted by action of the shareholders Name Chevron U.S.A. Inc. pursuant to 15 Pa C.S. 51905 6. Strike oat that paragraph ifno foreign corporation/limited partnership tx a potty to the merger. The plan was authorized. adopted or approved. as the eau may be, by the foreign business/nonprofit caportnion/limited pumembip (or each of the foreign business/nonprofit corporations/limited partnerships) party to the plan in accordance with the taws of the Jurisdiction in which h fs incorporated/organize& 7. Check and ffappropriatecomplete, one ofthe fotlowing: X The plan of merger is set forth in full is Exhibit A attached hereto and made a pan hereof. Pursuant to 15 Pa.C.S. ¢ 19014 8547(1) (relating to omission of certain provisions from filed plans) the provisions, if any, of the plan of merger that amend or constitute the operative provisions of the Articles of Incorporation/Certificate of Limited Partnership of the surviving cotporatiowlimited partnership as in effect subsequent to the effective date of the plan are set forth in full in Exhibit A attached hereto and trade a party hereof. The full tat of the plan of merger is on file at the principal place of business of the surviving corporation/limited partnership, the address of which is. Number and street City State Zip County LL — O ita — ¢0 S L Y z Z --W0 el 0 SI s� W = ti G LL CL a a NB r1 0 rim m0 = B 0 SI N • Man\011 ti IS OK 1- = ro11- =1D 0 • N • 10 d DSCB: 15- [92615926/85473 T 1 �1 vq, isg Lag. 1.F6.1 iuJ 1. • 0 }0i 1y y d a O ttU ( Iy R V`7 a 0 II v a c b Cw7 N414 I a 'et �= 11111111111111111111111111111111111111 III 1111111111111 666845 01/11/2005 12:54P B1655 P162 M ALSDORF 5 of 7 R 36.00 D 0 00 GARFIELD COUNTY CO EXHIBIT A AGREEMENT AND PLAN OF MERGER This AGREEME'N'T AND PLAN OF MERGER (this "Agreement"), dated as of April 29, 2002, by and among Chevron U.S.A. Inc., a Pennsylvania corporation ("CUSA"), and Chevron Shale Oil Company, a California corporation ("CSOC"). WITNESSETH: WHEREAS, CUSA is a corporation duly organized and existing under the laws of the Commonwealth of Pennsylvania; and WHEREAS, CSOC is a corporation duly organized and existing under the laws of the State of California; and WHEREAS, the Board of Directors of each of CUSA and CSOC deems it desirable, upon the terms and subject to the conditions stated herein, that CSOC be merged with and into CUSA, and that CUSA be the surviving corporation (the "Merger"); NOW, THEREFORE, it is agreed as follows: SECTION 1 Meurer, Effects 1.1 At the Effective Time (as hereinafter defined), CSOC shall be merged with and into CUSA, with CUSA as the sole surviving corporation (the "Surviving Corporation"). 12 At the Effective Time: (a) Each then -outstanding share of capital stock of CUSA shall, by virtue of the Merger and without any action on the part of the holder thereof, remain unchanged and continue to remain outstanding as one share of capital stock of the Surviving Corporation. (b) Each then -outstanding share of capital stock of CSOC shall, by virtue of the Merger and without any action on the part of the holder thereof, be canceled and no consideration shall be issued in respect thereof. SECTION 2 Effective Time 2.1 If this Agreement is duly adopted by the stockholders of each of CUSA and CSOC and is not terminated in accordance with Section 5 hereof, a certificate of merger I(X.11n2v1 - 1 - 1111111 1 1111 1111111 1111 1111 1111111 11111 111 111 IIII 1111 666845 01/11/2005 12:54P 81655 P183 M RLSDORF 6 of 7 R 36.00 D 0 00 GRRFIELD COUNTY CO reflecting this Agreement (the "Certificate of Merger") shall be filed with the Secretary of State of the State of California and articles of merger reflecting this Agreement (the "Articles of Merger') shall be filed with the Secretary of State of Pennsylvania. 2.2 The Merger shall become effective (the "Effective Time") at the time of the filing of the Articles of Merger with the Secretary of State of Pennsylvania (or such later time asmay be specified therein). SECTION 3 Certificate of Incorporation and Bylaws 3.1 At the Effective Time, the Amended and Restated Articles of Incorporation of CUSA, as amended through the Effective Time, shall be the Amended and Restated Articles of Incorporation of the Surviving Corporation. 3.2 At the Effective Time, the By -Laws of CUSA, as amended through the Effective Time, shall be the By -Laws of the Surviving Corporation. SECTION 4 Directors and Officers 4.1 The directors and officers of CUSA immediately prior to the Effective Time of the Merger shall be the directors and officers, respectively, of the Surviving Corporation. SECTION 5 Amendment and Termination 5.1 At any time prior to the Effective Time, notwithstanding approval of this Agreement by the stockholders of CUSA and/or CSOC, this Agreement may be amended, to the fullest extent permitted by applicable law, by an agreement in writing duly approved by each of CUSA and CSOC. 5.2 At any time prior to the Effective Time, notwithstanding approval of this Agreement by the stockholders of CUSA and CSOC, this Agreement may be terminated and abandoned by CUSA. 106135220 .1 11111111111 1111111 11111111 Hifi 111111 11111 11111111 666845 01/11/2005 12:54P 81655 P184 11 PLSDORF 7 of 7 R 36.00 D 0 00 GARFIELD COUNTY CO IN WITNESS WHEREOF, CUSA and CSOC have caused this Agreement to be executed by its duly authorized officers, as of the 20 day of April, 2002. CHEVRON U.S.A. INC. By: tkJc 1 Name: Th4a.,ic 461 tc-ee Title: Assistant Secretary CHEVRON SHALE OIL COMPANY By: Name: �2J G WAL-lea— C • Title : Vice President By: / i ' �-lc.+�Q,.-1,, Name: 'riZAAi c F' St Lr.2 Title: Assistant Secretary raeusnv1 Appendix 6 Letters Letter of Acting Agent Petroleum Development Corporation March 8, 2007 Brandon Danforth Cordilleran Compliance Services, Inc. 826 211/4 Road Grand Junction, CO 81505 RE: Acknowledgment of Agent Brandon Danforth Cordilleran Compliance Services, Inc. Garden Gulch Compressor Site Garfield County, Colorado To Whom It May Concern: This letter is to inform concerned parties that Brandon Danforth, with Cordilleras Compliance Services, Inc. ("Cordilleran"), will be acting on the behalf of Petroleum Development Corporation as Agent. Cordilleran will be supplying and submitting all necessary information to complete and receive a Special Use Permit for the "Gat -den Gulch Compressor Site" from Garfield County. Should there be any questions regarding Mr. Danforth's capacity, please call me at (303)250-1885. Sincerely, 1= Tys ffiohn Landman, Western Rockies tjohnstonctd.com Cc: James P. Wason CORPORATE OFFICE: Petroleum Development Corporation 120 Genesis Boulevard • PO Box 26 Bridgeport, WV 26330 304-842-3597 DENVER OFFICE: Petroleum Development Corporation 1775 Sherman Street, Suite 3000 Denver, CO 80203 303-860-5800 EVANS OFFICE: Petroleum Development Corporation 3801 Carson Avenue Evans, CO 80620 970-506-9272 Letter of Property Owner Chevron April 26, 2007 Garfield County Building and Planning Department 108 8t Street, Suite 401 Glenwood Springs, CO 81601 RE: Special Use Permit Application Petroleum Development Corporation Garden Gulch Compressor Site Garfield County, Colorado kierstin Hardland Mid -Continent Alaska Business Landman Unit Piceance Basin Chevron U.S.A. Inc. 11111 S. Wilcrest, Houston, TX 77099 P.O. Box 36366, Houston, TX 77236 Tel 281 5613510 Fax 866 228 5093 kier@chevron.com To Whom It May Concern: This letter is to inform concerned parties that Petroleum Development Corporation (PDC) has authorization from Chevron Shale Oil Company, a division of Chevron U.S.A. Inc. (Chevron) to pursue a Special Use Permit (SUP), on Chevron property, within Garfield County. It is Chevron's understanding that this SUP, located in the SW/4 of Section 8, T6S, R96W, Garfield County, Colorado, is for the purpose of upgrading an existing compressor site and that said upgrading will not use any additional Chevron property. Should there be any questions regarding PDC's capacity, please call me at (281)561-3510. Sincerely, CHEVRON SHALE OIL COMPANY a division of Chevron U.S.A. Inc. By: 4---' Title: n;tact ry-i,J- rAc.7- Date: i3 :tcc 1 Cc: Tyson Johnston Appendix 7 Lease Agreement 111111111111111111111111111111111111111 III 1111.11111111 627574 05/19/2003 03:40P 61470 P974 M fLSDORF 1 of 7 R 36.00 D 0.00 GPRFIELD COUNTY CO SURFACE LEASE STATE OF COLORADO COUNTY OF GARFIELD LIS THIS AGREEMENT, made this 15th day of January 2003, by and between Chevron U.S.A. Inc., a Pennsylvania corporation, whose address is 11111 S. Wilcrest Dr., Houston, Texas 77099, hereinafter called "Lessor", and Petroleum Development Corporation,.a Nevada corporation, whose address is 103 East Main Street, P.O. Box 26, Bridgeport, West Virginia 26330, hereinafter called "Lessee". The individuals, companies, and entities named above may sometimes individually be referred to as "Party" and collectively as the "Parties". WITNESSETH: For and in consideration of Ten Dollars ($10.00) and other valuable consideration and the rents paid and to be paid, and the mutual covenants herein contained, Lessor does hereby lease and demise unto Lessee the surface of the following described property, situated in Garfield County, Colorado: A parcel of land situated in Lot 11 (NE/4 SW/4) and in the SE/4 SW/4 of Section 8 Township 6 South, Range 96 West 6th P.M. containing 3.51 acres more or less, and as more particularly described as a compressor site in the attached Exhibit "A" which is incorporated herein for all purposes. The above described property is hereinafter referred to as the "Leased Premises". This surface lease is subject to the following terms and conditions: 1. Purpose of Lease. The Leased Premises may be used by the Lessee for any and all purposes consistent with Lessee's business activities, for central compression facilities, including, but not limited to, constructing, maintaining, operating and storing on the Leased Premises, equipment, warehouses, machinery, engines, compressors, tank batteries, pumps, power stations, pipelines, and other purposes incidental to the foregoing privileges, including rights of ingress and egress. It is noted for purposes of clarity that Lessee did not obtain an oil and gas lease on the SW/4 of Section 8 T6S-R96W. Lessee agrees to maintain and operate the Leased Premises herein granted in such manner that the operation thereof will in no way hinder or prevent the use and enjoyment of Lessor's adjoining property, including use thereof for exploration, mining, oil shale development, oil and gas development, farming, ranching and land development. 2. Tenn. This agreement shall be effective for a period beginning January 15, 2003 and shall continue so long as Lessee continues to use and maintain the Leased Premises and PDC Section 8 Comp Site Surface Lease.doc Niwhoib =416/2003 Pe*e \ei xn l�� lo9 flQnT Copp . -t- PO box ab 9 -o,; ( -1(v3 On'M \r- c 16550 971 11111111111111111111111111111116r111111111111111111111 627574 05/19/2003 03:40P 81470 P975 11 RLSDORF 2 of 7 R 36.00 D 0.00 GRRFIELD COUNTY: CO associated facilities without interruption for more than ninety (90) consecutive days, unless terminated or canceled prior thereto in the manner provided for herein. Notwithstanding that Lessee may have obtained Lessor's approval under this agreement to make various uses of the surface of the Leased Premises, Lessee's operations shall be subordinate to Lessor's right to conduct shale oil operations on the leased lands at any time in the future. If Lessor determines in its reasonable discretion that Lessee's operations will interfere with Lessor's shale oil operations, Lessee agrees to change, cease or relocate its operations in order to eliminate the interference. Costs incurred prior to January 1, 2018 in connection with the relocation of Lessee's wells, gathering systems and other related facilities in order to eliminate interference shall be borne by Lessor. If any such change, cessation or relocation of facilities results in permanent loss of production, Lessor will compensate Lessee for same at the then fair market value of the leased substance. Effective January 1, 2018 and thereafter, Lessee agrees to change, cease or relocate its operations at its sole risk and cost, in order to eliminate an interference and Lessor shall have no obligation to compensate Lessee for lost production resulting from such elimination of interference. 3. Maintenance of Lease. a. The rental payment for the first year has been paid by Lessee, the receipt of which is hereby acknowledged by Lessor, and no additional rental payment shall be due during the first year of this lease. For the period beginning January 15, 2004, Lessee shall pay or tender as rent the sum of Twenty Five Hundred dollars ($2500.00) per year. Thereafter, rental payments shall be due annually on or before the anniversary date of this lease. b. Manner of Tender. All payments to Lessor hereunder shall be made by Lessee's check, mailed postage prepaid to Lessor, or to Lessor's credit at ChevronTeeaco Shale Oil Company, P.O. Box 840659, Dallas TX 75284-0659, which bank and its successors shall continue as the depository for payments hereunder regardless of changes in ownership of the Leased Premises. c. Right to Surrender. Lessee may surrender this lease in whole or in part at any time by filing an instrument of full or partial surrender of public record in the county wherein the Leased Premises are located. Upon such surrender, Lessee shall be relieved of all obligations under this surface lease as to lands so surrendered, except as specifically noted herein.. 4. Removal of Equipment. It is agreed that all buildings, machinery and other material, equipment and property placed on the Leased Premises by Lessee shall not become part of the real property but shall remain the personal property of Lessee, and that Lessee shall have the privilege of removing all personal property and improvements placed by it on the Leased Premises, provided it does so within six (6) months following termination of this lease. Lessee shall restore the surface as nearly as practicable to its original condition upon expiration or surrender of the lease. PDC Section 8 Comp Site Surface I.ease.doc 4/16/2003 i 111111 11111111 unit 1111111111111 11111 1111 1111 627574 05/19/2003 03:40P B1470 P976 M ALSDORF 3 of 7 R 36.00 D 0.00 GARFIELD COUNTY CO 5. Covenant that Operation of Leased Premises Not interfere with Servient Tenement. a. Lessor reserves the right for itself or its assignees to explore for, mine, and remove oil shale, oil and gas, ores and other minerals in, on or under the Leased Premises that are located in Section 8. b. Lessor reserves the right to fence the whole or any part of the boundaries of the Leased Premises, and the right to build fences crossing such Lease Premises. c. Except as otherwise provided herein, Lessee shall maintain current as -built drawings for the Leased Premises and all of its surface and subsurface facilities located within the Leased Premises and shall provide Lessor with copies of such drawings. d. Lessee shall compensate Lessor's agricultural lessee(s) forall damages to crops and other damages and losses suffered by such lessee(s) in connection with the activities permitted pursuant to this agreement. e. Lessee shall take all necessary precautions, in conducting its activities under this agreement, to prevent brush and grass fires. 6. Indemnity. Lessee agrees to protect, indemnify and hold Lessor and all of Lessor's affiliated and parent and subsidiary companies, joint venturers and partners, and all of the aforesaid entities' officers, directors, shareholders, employees, agents, invitees and insurers ("Indemnitees") harmless, from and against any and all liability, loss, damage, injury, costs (including attorney fees), expenses, fines, claims, demands and causes of action arising out of, or in any way connected with Lessee's activities or operations under this agreement, for injury to or illness or death of any person (including but not limited to an Indemnitee or an employee or agent of Lessee or Lessee's contractors or subcontractors or any third party) or for loss of or damage to property (including but not limited to property of Indemnitees, Lessee, Lessee's contractors or subcontractors or any third party) or for violation of any federal, state or local laws, rules, regulations, and orders including but not limited to CERCLA and RCRA. SUCH INDEMNITY SHALL APPLY EVEN IN THE EVENT OF AN INDEMNITEE'S OWN NEGLIGENCE, WHETHER SUCH NEGLIGENCE IS SOLE, COMPARATIVE, CONTRIBUTORY, CONCURRENT, ACTIVE, OR PASSIVE, AND REGARDLESS OF WHETHER LIABILITY WITHOUT FAULT IS IMPOSED OR SOUGHT TO BE IMPOSED ON ONE OR MORE OF THE INDEMNITEES. This indemnity shall not apply to the extent that it is void or otherwise unenforceable under applicable law. 7. Lessee Insurance Requirement. Without in any way limiting Lessee's liability under this agreement, Lessee shall maintain, during the term of this agreement, the following insurance with companies and on terms satisfactory to Lessor: PAC Section 8 Comp Site Surface Lease.doc 4/16/2003 -3- 1 11111111111-II11I11111 1111111 11111 hill 11111111'11111111 627574 05/19/2003 03:40P B1470 P977 M ALSDORF 4 of 7 R 36.00 D 0.00 GRRFIELD COUNTY CO A. Worker's Compensation and Employers' Liability Insurance as prescribed by applicable law. The limit of liability for Employers' Liability Insurance shall not be less than $1,000,000 per occurrence. B. Comprehensive or Commercial General Liability Insurance (Bodily Injury and Property Damage), including the following supplementary coverages: Contractual Liability to cover liability assumed by Lessee under this agreement; Product and Completed Operations Liability Insurance; Broad Form Property Damage Liability Insurance; and coverage for Explosion, Collapse and Underground Ha7nrds. The limit of liability for such insurance shall not be Less than $1,000,000 per occurrence. C. Automobile Bodily Injury and Property Damage Liability Insurance. Such insurance shall extend to owned, non -owned and hired automobiles used in the performance of this agreement. The limits of liability of such insurance shall not be less than $1,000,000 per person/ $1,000,000 per occurrence for bodily injury and $1,000,000 per occurrence for property damage. The insurance specified in this Section Seven shall contain a waiver of subrogation against Lessor, and shall name Lessor as an additional insured with respect to the activities performed pursuant to this agreement. In addition, said insurance shall include a requirement that the insurer provide Lessor with 30 -days' written notice prior to the effective date of any cancellation or material change of the insurance. Upon Lessor's request, Lessee will furnish Lessor with copies of the insurance polices providing the coverages and endorsements required herein. 6 Warranty. This Lease is made without warranty of title, express or implied, and is expressly subject to any exceptions and reservations and other matters affecting title of record, including all existing easements, rights-of-way, licenses, leases and other agreements affecting the surface or subsurface of the Leased Premises and Lessor further reserves the right to grant other easements, rights-of-way, licenses, and leases to third parties to cross over or under these Leased Premises. Lessee is responsible for obtaining any necessary third party consents prior to conducting activities on the Leased Premises pursuantto this agreement. Lessee may, at its option, discharge any tax, mortgage, or other lien on the Leased Premises, in whole or in part, and thereby be subrogated to each such lien or liens, with the right to enforce the same and to apply all rentals toward the satisfaction thereof. If Lessor owns less than the entire interest in the Leased Premises, the rentals to be paid hereunder shall be proportionally reduced. 7. Assignment. The rights of either Party hereto may be assigned in whole or in part but no change of ownership of Lessor's rights shall operate to enlarge the obligations or diminish the rights of Lessee. No change in ownership of the Leased Premises shall affect or bind Lessee until the purchaser thereof shall furnish to Lessee the original instrument of conveyance or a duly certified copy thereof. Such evidence of ownership must be supplied at least sixty (60) days before the next succeeding rental obligation is due; otherwise, payment of rental as herein provided to the purchaser's predecessor in title chall bind such purchaser. Lessee shall have neither the right nor the power to assign this lease, in whole or in part, to another party without the prior written consent of Lessor. Lessor may PDC Section 8 Comp Site Surface Lease.doc 4/16/2003 -4- 111111111IIII111111111111111111111h-oil.III 11111 1111 1111 627574 05/19/2003 03:40P B1470 P978 11 PLSDORF 5 of 7 R 36,00 D 0.00 GARFIELD COUNTY CO withhold its consent to any such proposed or attempted assignment for any reason or for no reason in its sole discretion. Any attempted assignment made in contravention of this provision will be, in Lessor's sole discretion (and in addition to any other remedy available to Lessor at law or in equity), voidable and of no force. The granting of Lessor's consent to any assignment will be effective only as to the specific assignment then the express subject of such consent, and any subsequent assignment which may be proposed or attempted will be ineffective without Lessor's prior written consent. Provided, however, this provision shall not apply to assignments that may be made to limited partners that Lessee may be required to make under limited partnerships Lessee may form to conduct operations under this agreement. Also, this provision shall not apply to transfers of interest that result from mergers, acquisitions or sales of all of Lessee's assets and assignments to Lessee's corporate affiliates. 8. Breach. It is agreed that no default or breach of covenant shall be deemed to have occurred on the part of Lessee until thirty (30) days after written notice of such default or breach shall have been given to Lessee, and the Lessee within such time shall have failed to remedy such default or breach. 9. Taxes, Liens, and Encumbrances. Lessee agrees to pay promptly and before delinquency all taxes and assessments levied or assessed upon or against the Leased Premises during the term hereof, by reason of, or resulting from Lessee's activities under this agreement in relation to the facilities, and to reimburse Lessor for any increase in taxes paid by Lessor resulting from the value of such facilities, whether or not separately assessed. Lessee shall pay all taxes levied or assessed upon or against Lessee's facilities and operations on the Leased Premises. 10. Notices. All notices shall be in writing with postage prepaid addressed to the applicable Party hereto at the address set forth above, or to such other persons and addresses as may hereafter be designated by the Parties hereto in writing. All notices shall be deemed delivered when deposited in a United States post office enclosed in a prepaid envelope addressed as hereinabove provided, or if not mailed, when delivered in person to the affected Party. 101. Successors and Assigns. The terms, conditions and provisions of this agreement shall be binding upon and inure to the benefit of the Parties hereto and their respective heirs, successors and assigns. 12. Termination of Agreement. Upon termination of the rights herein given, Lessee shall execute and deliver to Lessor, within thirty (30) days after written demand therefore, a good and sufficient quit claim deed to all interest of Lessee in the Leased Premises so terminated. Should Lessee fail or refuse to deliver to Lessor such quit claim deed, a written notice by Lessor reciting the failure or refusal of Lessee to execute and deliver said quit claim deed, as herein provided, shall after ten (10) days from the date of recordation of said notice, be conclusive evidence against Lessee and all persons claiming under Lessee of the termination of this agreement or a portion thereof and all interest of Lessee hereunder as to that portion, subject to Lessee's obligation to remove its property PDC Section 8 Comp Site Surface Lease.doc 4/16/2003 1 III11.111111 IIII 1111111 IIIr1,riIl III 111111111 1111 627574 05/19/2003 03:40P 81470 P979 M ALSDORF 6 of 7 R 36.00 D 0.00 GARFIELD COUNTY CO within six (6) months of such termination. Termination shall not operate to extinguish any obligations of Lessee which have accrued at the time of termination, or which accrue hereunder upon termination. 13. Applicable Law. This agreement and the exhibits hereto shall be governed as to validity, enforcement, construction, effect, and in all other respects, by the law of the State of Colorado, and its courts shall have jurisdiction to enforce this agreement. 14. Attorney Fees. h the event of a default by either Party in the performance of its duties, the court with the proper jurisdiction to resolve the dispute shall award reasonable attorney fees and costs to the successful Party, or in such other manner as the court sees fit. IN TESTIMONY WHEREOF, the Parties hereto have executed this agreement as of the day and year first written. Lessor: Chevron U.S.A. Inc. By: Lessee: Petroleum Developmel Corporation By: Title:`Attomey-in-Fact Title: J E t,0'1't/4-?E0y t Date: Date: STATE OF TEXAS COUNTY OF HARRIS The foregoing instrument was acknowledged before me this J64tday of ✓ , 2003. by 0. F. Baldwin. II as A may in -Fact for Chevron U.S.A. Inc. f�.-rf/lt�l, Notary Public My Commission Expires: q- Ci STATE OF i-'Clora(o) COUNTY OF kie,i G ) CY its ELAINE J, GRARER Notary Public, State of Texas 4,My Commission Expires! September 30, 2004' The foregoin ins ant was acknowledged before}�e this"I 1 r qday of 1r 2003 by as VP C" k:p1hYn 7-i ryl of Petroleum. Notary Pub 'c My Commission Expires: PDC Section 8 Comp Site Surface Lease.doc 4/16/2003 EXHIBIT A EXISTING 8" . \ GAS PIPELINE aLL r� . .0 /0 a U a r}- — 03 aav N 1-1 BM al 1L MEI Nom_ Garden Gulch Compressor Site \\jr N25'54'58"E \\ G., 146.03' \ 9p\ \\ c ,on " SAk NIk Q4C 0\4 6CSC 3.51 Acre Gorden Gulch Compressor Site N67'45'04"W 146.89 N5514'45"W 56.29' ,IDI %IN `o `a`'ll �0�8. 6 EXISTING COMPRESSOR SITE ACCESS S82 49"42"E 4j N73'31'44"W 195.05' 7 \ EXISTING 8" GAS PIPELINE EXISTING 6" GAS PIPELINE GENERA LEGAL DESCRIPTION A parcel of land situated in Lot 11 (NE 1/4 SW 1/4) and in the SE 1/4 SW 1/4 of Section 8, Township 6 South, Range 96 West of the 6th Principal Meridian, County of Garfield, Stote of Colorado, being more particularly described as follows: Commencing at South 1/4 corner of said Section 8; thence N 31'36'29" W a distance of 1674.24 feet to the True Point of Beginning of the parcel described herein; thence N 25'54'58" E o distance of 148.03 feet; thence 5 72'00'47" E a distance of 351.62 feet; thence S 82'49'42" E a distance of 405.47 feet; thence 5 09'55'44" W a distonce of 286.84 feet; thence N 66'03'46" W o distance of 417.41 feet; thence N 7311'44" W o distance of 195.05 feet; thence N 55'14'46' W a distonce of 56.29 feet; thence N 67'45'04' W a distance of 146.89 feet to the point of beginning, containing 3.51 acres more or less. O CONSTRUCTION SURVEYS, INC. 0012 SUNRISE BLVD. SILT, CO SI652 9'10-816-5153 PETROLEUM DEVELOPMENT CORP: DWG:POC\AS—BLT1'' (view ab3) SCALE: 1" = 300' DATE: 04/14/03 Appendix 8 Stormwater Management Plan (SWMP) Petroleum Development Corporation Garden Gulch Compressor Station Storm water Pollution Prevention Plan TABLE OF CONTENTS 1.0 Introduction 1 2.0 Project Scope 1 2.1 Project Description 1 2.2 Construction Sequence 1 2.2.1 STATION CONSTRUCTION 1 2.3 Estimated Disturbance 2 2.5 Vegetation 2 2.6 Potential Pollution Sources 2 2.7 Non-Stonnwater Discharges 2 2.8 Receiving Waters 2 3.0 Project Maps 3 4.0 Best Management Practices 3 4.1 Erosion and Sediment Controls 4 4.1.1 Structural Practices 4 4.2 Materials Handling and Spill Prevention Controls 5 4.3 Final Stabilization and Longterr Stonuwater Management 5 4.4 Other Controls 5 5.0 Maintenance and Inspection 6 5.1 Maintenance 6 5.2 Inspection 6 - 5.2.1 Construction 6 5.2.2 Post -Construction 7 Appendix A Appendix B Appendix C Appendix D Map Typical Drawings Inspection Forms Notice of Termination Stornnvater Pollution Prevention Plan 1.0 INTRODUCTION The following Stornlwater Pollution Prevention Plan provides the erosion, sediment, and stonnwater pollution control practices to be implemented and maintained during pipeline construction activities for Petroleum Development Corporation's (PDC) Garden Gulch Compressor Station project in western Colorado. The risk of stonnwater, erosion, and sediment pollution is minimized by the use of appropriate construction methods and ,equipment and the short duration and limited area involved. The erosion, sediment, and stormwater pollution control practices prescribed herein further avoid or reduce the impact of soil erosion, sedimentation, and stormwater pollution on or adjacent to the proposed project right-of-way. This plan includes standard stormwater, erosion, and sediment pollution control measures that are proven and in widespread use where applicable by the natural gas industry. PDC and contractor personnel are to be thoroughly familiar with this plan and its contents prior to initiating construction on the Garden Gulch Compressor Station project. 2.0 PROJECT SCOPE 2.1 PROJECT DESCRIPTION The compression will all be located at the existing Garden Gulch compressor site. The project is located south and northwest of Parachute, Colorado in Sections 8, of Township 6 South, Range 96 West on the Circle Dot Gulch and Forked Gulch USGS quadrangles. The initial construction phase will include the installation of (2) Natural gas driven compressor. The stations will also include an inlet scrubber, unit suction scrubbers (furnished with the compressors), interstage and discharge gas coolers (furnished with the compressors), that will include a discharge coalescing filter separator, fuel/utility meter (located in the compressor building). The gas will be dehydrated before discharged into the existing sales line. The new pipeline will be installed within the existing ROW of the Garden Gulch Compressor Station. A project area map is provided in Appendix A. 2.2 CONSTRUCTION SEQUENCE Construction activities are expected to be completed in 12 weeks and are scheduled for March, 2007. 2.2.1 STATION CONSTRUCTION The station is to be constructed on an existing pad using standard facility construction methods. This method includes clearing, grading, trenching, pipe stringing, pipe bending, welding, joint coating, padding where required, lowering in, backfilling, pneumatic testing, cleanup, and PDC — Garden Gulch Compressor Station November 2006 Stormwater Pollution Prevention Plat spreading crushed stone over the finished area. 2.3 ESTIMATED DISTURBANCE The area of the existing site to be disturbed during construction anticipated to impact less than 3/4 acres of ground. The remaining project area will remain as is and undisturbed. 2.5 VEGETATION The existing site where the modification is to be performed has been graded in the past and there is no vegetation present. Native vegetation in the area of the proposed compressor station modification consist of Gambol oak, elk sedge, Indian ricegrass, wheatgrass, junegrass, serviceberry, bitterbrush, big sagebrush, needle and thread, bluegrass, and pinyon and juniper with assorted bromes. Percent vegetative groundcover varies between vegetation types, but in general, the percent cover is less than 1%. 2.6 POTENTIAL POLLUTION SOURCES The following materials may be used during construction of the proposed project and could affect the quality of stormwater discharges if not managed comedy: • Petroleum based products • Wet concrete • Lubricants • Paints and coatings • Cleaning solvents • Herbicides • Vegetative and woody debris • Disturbed soil Soil disturbed by construction is the most likely potential pollution source and is addressed by the erosion and sediment controls in Section 4.1. The potential for accidental spills or leaks will be minimized by adherence details described in Section 4.2. 2.7 NON-STORMWATER DISCHARGES Non-stormwater discharges may occur from the project area during the construction period and may include trench dewatering and hydrostatic test discharge waters. All non-stormwater discharges will be discharged in accordance with applicable permits. 2.8 RECEIVING WATERS The proposed project will be constructed upstream to Parachute Creek. The project is located on an existing compressor pad and is not close to any wetlands. The project area is located within the Lower Colorado River basin. This water body is expected to be dry during the construction period, although some water could be present. In general this will not cause any problems as the project does not cross the creek. PDC — Garden Gulch Compressor Station 2 November 2006 Stonuwater Pollution Prevention Plan It is not anticipated that any stormwater runoff will enter into any municipal storm sewers. 3.0 PROJECT MAPS A general location map is provided in Appendix A, along with a General arrangement of the existing compressor site with and without modifications. 4.0 BEST MANAGEMENT PRACTICES Best management practices (BMPs) will be used to minimize erosion and sediment transport during the construction activities associated with the proposed project. General construction stages of the proposed project and changes in site erosion potential and storm water runoff that accompany each stage are described below. Stage 1: Pre -Construction - Storm water runoff from the site is at pre -developed levels and erosion is minimal. Site perimeter erosion controls may be required prior to initial disturbance. Stage 2: Clearing - Erosion from the site increases to moderate levels and storm water runoff volume begins to increase as vegetation is removed and site areas become compacted by heavy equipment. At this stage, the installation of best management practices may be necessary. Stage 3: Topsoiling and Grading - Topsoiling and grading can result in moderate to high levels of erosion. Major stonns can wash away sediment control structures and can deposit substantial sediment in control structures, significantly reducing capacity. Runoff volume is increasing as disturbed area increases. Erosion can continue to be moderate to high and storm water runoff volume continues to increase as disturbed areas become more compacted. Installation of best management practices is necessary. Regular inspection and maintenance of sediment control structures is required to maintain effectiveness of the devices. Stage 4: Active Construction - Construction is at its peak. Moderate to high erosion rates can continue and storm water runoff volumes can approach maximum. The impact of high erosion rates can be significant if sediment control practices have not been maintained during previous stages of construction and are clogged or have inadequate capacity to control site storm water discharges. Stage 5: Cleanup and Reclamation - Disturbed areas are restored to original contours, seeded, and stabilized, as necessary, with vegetation or other suitable non-erosive cover. Once all areas of the site are stabilized, temporary sediment control measures will be removed from the site, and sediment collected during the construction phase is removed from permanent storm water control structures to restore design capacity, if necessary. Storm water runoff volume reaches post -development rates and may be less than the volume that occurred in Stage 4, due to areas of PDC — Garden Gulch Compressor Station 3 November 2006 Stormwater Pollution Prevention Plan the site that are stabilized with vegetation. 4.1 EROSION AND SEDIMENT CONTROLS The potential for erosion and sediment transport is greatest in areas where ground surfaces have been disturbed and soil is exposed to physical agents such as wind and water. In an effort to protect existing water quality, both temporary and permanent BMPs and other erosion control measures have been designed to minimize the effects of erosion caused by storm water runoff. In most cases, a combination of vegetative, structural, and storm water management practices are used to control erosion and transport of sediment. Typical BMPs drawings are included in Appendix B. Erosion and sediment controls will be used and maintained during all phases of construction. Selection of appropriate erosion controls will be selected based on soil properties, steepness of the slope, and anticipated surface flow or runoff. All control measures will be maintained as necessary until the general permit is terminated. 4.1.1 Structural Practices During construction, erosion and sediment control structures including waterbars and sediment barriers will be employed as necessary to reduce erosion and runoff from the construction workspace to adjacent areas. 4.1.1.1 Sediment Barriers Sediment baniers prevent sediment flow and erosion of disturbed areas. Sediment barriers may include silt fence, straw bales, excelsior logs, or sandbags. Sediment barriers are typically installed at the base of slopes at road crossings or slopes adjacent to wetlands or flowing waterbodies, and around topsoil or subsoil stockpiles at wetlands or flowing waterbodies. Sediment barriers may be installed at the edge of the workspace in culturally or biologically sensitive areas. Sediment barriers will be installed at the direction of the on-site PDC representative. Specifications for the installation of silt fence and straw bale barriers have been included in Appendix B. To be effective, the bottom of the silt fence shall be imbedded into the soil surface at a minimum depth of six inches. The straw bales shall be imbedded into the surface soil at a minimum depth of four inches and will be double -staked with wooden stakes. Sediment will be removed from the sediment barriers when capacity is reduced to 50 percent of original. Sediment barriers may be removed from the construction right-of-way if replaced by an equivalent BMP or once the final stabilization criteria has been met. 4.1.2.2 Clean-up All construction -related debris (except vegetative debris) will be removed and disposed of at an approved disposal area. The compressor site and temporary extra workspace areas will be graded PDC — Garden Gulch Compressor Station 4 November 2006 Stormwater Pollution Prevention Plan as near as possible to the pre -construction contours and natural runoff and drainage patterns will be restored. Stockpiled topsoil will be redistributed over the trench and other portions of the right-of-way from which the topsoil was salvaged. Permanent waterbars will installed according to the guidelines in Section 4.1.1.2. Cleanup activities will be initiated as soon as practicable after backfilling activities have been completed. 4.2 MATERIALS HANDLING AND SPILL PREVENTION CONTROLS All toxic or hazardous material and/or wastes will be stored, handled, disposed of in compliance will all Federal, State and local laws and regulations. No toxic and/or hazardous materials will be stored overnight on the ROW. Equipment maintenance and fueling; hazardous material, petroleum product, lubricant, paint and coating, fertilizer, and herbicide storage; pipe fabrication utilizing wet concrete; and fertilizer or herbicide application will only occur in upland areas at least 100 feet from wetlands and flowing waterbodies and 200 feet from springs or wells. If topographic or site-specific conditions do not allow for stationary equipment, such as pumps or generators, to be placed in upland areas, the stationary equipment shall be stored in secondary containment structures in accordance with the Spill Plan. Approved herbicides will be used during before construction and during operation and maintenance for weed control within the permanent right-of-way. Approved fertilizers will be used during revegetation activities in accordance with landowner requirements. Herbicide and fertilizer application are not expected to result in stormwater contamination. Any spills that should occur along the ROW during construction will be cleanedup immediately and the contaminated soil disposed of at a county and state approved site. 4.3 FINAL STABILIZATION AND LONGTERM STORMWATER MANAGEMENT Measures used to achieve final stabilization have been addressed in Section 4.1.2. Measures to control sediment pollutants in stormwater discharges have been addressed in Section 4.1.1. After construction has been completed, petroleum and chemical products or hazardous materials will be on site and have secondary containment. 4.4 OTHER CONTROLS In addition to the installation of erosion and sediment control measures, the following good housekeeping practices will be implemented to prevent or minimize potentially polluting construction materials from contact with stormwater: • The project -related construction will be scheduled during the dry season to minimize storm PDC — Garden Gulch Compressor Station 5 November 2006 Stornrwater Pollution Prevention Plan water pollution potential and to control pollutants in the stormwater discharges. • All project -related personnel will receive environmental training which will include spill prevention and control procedures, and sediment and erosion control measures. • Dust abatement measures will be implemented for control of airborne dust along the construction right-of-way and on unpaved access roads. Unpaved access roads, and topsoil and subsoil stockpiles will be sprayed with water or an approved tackifier, as needed, to minimize the effects of wind erosion and to reduce fugitive dust. • Regular disposal for garbage, rubbish, construction wastes, and sanitary waste will be maintained at all times during construction. Sanitary sewage facilities (portable chemical toilets) will be provided at all work locations. Sanitary waste will be collected and removed for disposal at an appropriate licensed sewage disposal facility, 5.0 MAINTENANCE AND INSPECTION 5.1 MAINTENANCE The subcontractor awarded construction will be responsible for the implementation and maintenance of this plan. The PDC representative will be responsible for ensuring that the construction subcontractor is in compliance with this plan. Maintenance will be performed on an as -needed basis based on the results of inspections conducted at the construction storage yard and along the construction right-of-way. All erosion and sediment controls and other protective measures identified in this plan will be maintained in effective operating condition. If site inspections indicate that BMPs are not operating effectively, maintenance will be performed promptly, before the next anticipated storm event, to maintain continued effectiveness of storm water pollution controls. 5.2 INSPECTION 5.2.1 Construction During construction, the PDC representative will inspect the disturbed construction right-of-way and construction storage yard at least once every 14 calendar days and within 24 hours of any precipitation or snow melt event that causes surface erosion. Following each inspection, the PDC representative will complete an Erosion and Sediment Control (Erosion) Checklist to document results of the inspection (Appendix C). Copies of inspection reports will be retained at the construction site. After the project has been completed, copies of the inspection checklists will be retained at PDC's office. If design capacity of any erosion control structure has been reduced by more than 50 percent, PDC— Garden Gulch Compressor Station 6 November 2006 Stor,nwater Pollution Prevention Plan corrective action will be taken within 24 hours of discovery or as soon as weather or ground surface conditions will allow. If equipment or storage containers are leaking, the equipment or storage container will be repaired immediately. An "Incidence of Noncompliance" report will be completed by the PDC representative for any violation of the storm water pollution prevention plan observed during any inspection conducted. The report will include information on the cause of noncompliance, the corrective action taken to prevent further causes of noncompliance, and a statement detailing any environmental impact that may have resulted from the noncompliance. 5.2.2 Post -Construction Final stabilization of the construction project will be considered completed once it has been determined by the PDC representative that the project area has been fully graveled. A Notice of Termination (NOT) can then be filed for the NPDES permit. A NOT is included in Appendix D. Copies of all records and information resulting from monitoring activities required by this permit will be retained by PDC for a minimum of 3 years. PDC — Garden Gulch Compressor Station 7 November 2006 Mar. 21. 2007 2:38PM PETROLEUM DEVELOPMENT No.2851 P. 1/1 SYormwarer Pollution Prevention Plan STORM WATER POLLUTION PREVENTION PLAN CERTIFICATION Petroleum Development Corporation 120 N. Railroad Ave., Suite D P.O. Box 238 Parachute, CO 81635-0238 CERTIFICATION STATEMENT "I certify under penalty of the law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. I also confirm that a storm water pollution prevention plan (SWPPP) has been completed, will be maintained at the project site from the start of construction activities, and that the SWPPP will be compliant with any applicable local sediment and erosion control plans. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines for knowing violations." Signature: CHARLIE PATTER Petroleum Development Corporation 120 N. Railroad Ave., Suite D P.O. Box 238 Parachute, CO 81635-0238 ate PDC—Garden Gulch Compressor Station a November2006 Stormwater Pollution Prevention Plan CONTRACTOR'S CERTIFICATION Petroleum Development Corporation 120 N. Railroad Ave., Suite D P.O. Box 238 Parachute, CO 81635-0238 CONTRACTOR CERTIFICATION STATEMENT "I certify under penalty of the law that I understand the terms and conditions of the general National Pollutant Discharge Elimination System (NPDES) General Permit that authorizes the storm water discharges associated with industrial activity from the construction site identified as part of this certification." 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" 1 ';'...-- i • ) ••• C • —•/ A '11 ) -79."" •-• ). ) • .:•••••••\*.‘', t 1 \`i•V‘ \Wirt ))) PDC%0nOIC,3 • • • ..••• r••••...„:„1.2•••,),11 I • ,,••••••,,‘ , N.) soo ,a. -,,.. , ,.....'r.--.:, : ...--.1i- - ":.•.';,:i .••• 7 -"'"'-' i ''''.- V:4 ifri,....-,,,e,..„:„.•__ ..:L-.,_-_: -.." _, - ' . ---; -7•'''''',,,'-' .7 -•,, ,:1.--:S.`;-./ '7'4,, ,-- -f.— .•-• --- ----!..."-\...-=',);:-..:1-'' ".,'?-f: .-- -4` 4 r'---. . - f' • ..., -^.. ,i' • :or) --;.••••• • _ - - ,• ,c• --;• ; '4•• • ' • ; .• • • L 1 • • • „Jr - . , 1. • 11 w cc 0. O. cC CC z C> 0 0 4 0 N N N N a) O CO cn V 1- 0 N 0 w N CT c O 0 u 0 O 0 0 0 0. 0 a N L 0 O 0 `0 .0 0 E 0 00 0 0 0N 0 0 EXISTING RECENER N6745GeW 74689' EXISTING MEIER BUILDING GARDEN GULCH ROAD -------------- PLANE ROAD ------------------------------- RISING __________________________ RISING DISCHARGE SEPERITOR EXISTING GLYCOL REGENERATOR EXISTING BNhDNG --------------------------- NOTES: 1. CONIRACTU.R SHALL FIELD VERIFY ALL DIMENSIONS PRIOR TO FABRICATION. REFERENCE DR4%NG5 REVISIONS 0 A NANG. pite.TOV11 2/IG/GI NUM Petroleum Development Corp. uro TRIGON otzt— WIE4 Ed t3IEt CI IP/01 EN Arriode m MI ea Eµ R/p7/R1 LIEpE AT Dia NR WIC 4S Rr DR GENERAL ARRANGEMENT PRE -CONSTRUCTION 'Cita 1/11 • r.0 '0E 2242-01 •Iw— D224201-M-100 ea 0 Ir a 0 O a K Q Z W 0 o_ I 0 Li.0 a 0 N 0 C n a CO V C Eq. N P CO CD N 0 D. n 0 0 N 0 1 I N 6 '45'04'W 146.69' DUSTING METER BUILDING • NOTER 1. CONTRACTOR SHALL FIELD VERIFY ALL DIMENSIONS PRIOR TO FABRICATION. '� 4i 6"7 56dg� 57700'47 E NEW fNEROENCY VENT STACK LOCATION GARDEN GULCH ROAD NEW GLYCOL Ma UP TANK NEW BRE% UNIT 11 G-102 NOV Jt GLYCOL CONTACTOR V-103 arcO, REGENERATOR G-101 O NEW ENCLOSED FLARE F-101 NEW PIG RECOVER PANT ROAD NOW B' PPE LINE MURE COMPRESSOR BUILDING ir NEW DISCHARGE SEPERATOR V-102 NEW NEL CAS SCRUBBER • 0-104 NEW c0NPREssDR MONO NEW COLPRESSOR 1-102 NEW COMPRESSOR C-101 1 NEW MET sEK0-00' p v-1 G1 h M h b u b cn to FUTURE COMPRESSOR C-103 REFERENCE DRAWINGS N7SJr'44W 795.05' REVISIONS A 0Aw AN 275 V 0110 1 1/16/01 NEW APPROX. LOCATION OF EXISTING WRUNG. ILW COMPRESSOR 0001 UP OM1 & U5E0 IOL TANKS 0 A a 0 040E0 2% nW 00102 ,12 2Ppp1 7-104 l-103 1-102 SLOP 011. PRODUCED PROOLCCO WATER WATER TANX LOCATION --------------------- Petroleum Development Corp, p1 2190) M COWimXOM 1/1/02 Elk RW RUED KA PP 2/27107 No romp r0 ALNM ti Ra DEWS,O rvn 00 4Y TRIGON*Ii1 rd&I GENERAL ARRANGEMENT POST—CONSTRUCTION nuc MWp 2242-011.4.c wtp P 0224201-14-101 01 APPENDIX B Typical Drawings STEP I. EXCAVATE THE TRENCH SIFP 3 WEDGE LOOSE STRAW BETWEEN BALES STEP 2, PLACE AND STAKE STRAW BALES. STAKED & ENTRENCHE STRAW BALE COMPACTED SOIL TO PREVENT PIPING (ANCHOR TOE) SEDIMENT LADEN RUNOFF— NPM USE CERTIFIED WEED -FREE STRAW. STEP 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. 25(2'X36" STAKES IN Trifi,1‘ Wi41,7F1vn it Iv+1 ,5 F 18" BINDING WIRE OR TWINE FILTERED RUNOFF CROSS SECTION A -A MOOS 0 —St —w 0. ria >r •mow a MO RR /MS M/IUN CL -- TRIGON CtiEP-C 4 0111!1.1 • R IR STRAW BALE BARRIERS MOM 2t37-01 -- 0 APPENDIX C Inspection Forms ENDS OF SEDIMENT BARRIERS TURNED UPSLOPE ict METAL OR WOODEN POST DR STAKE ATTACH FABRIC TO POST a? STAKE IHTH RE WIRES DR STAPLES. ANCHOR FABRIC N TRENCH MIH BACKFILL RUNOFF /LOW FILTER FABRIC EXTENSION Of FABRIC INTO THE TRENCH SILT FENCE DETAIL N. —n �� 6 air 11 t www TRIGON «EP -.0 :Pt% SIO PERI Nmn n q 1111111a ■ s w NOM SILT FENCE �11•1111 2137-01 Iw STD -301 NM 0 EROSION CONTROL CHECKLIST For the week ending: Last precipitation event / amount: Erosion control measures were evaluated daily In areas of active construction, weekly in areas not under active construction, and within 24 hours in areas receiving a 1/21 or greater precipitation even(. Areas requiring maintenance have been documented in the Daily Environmental Reports. Milepost Station Range Construction Status Erosion Control Type Begin End Feature (e.g., wash, slope, access road) Active a c — m a E o U Water Bars Driveable Berms Trench Breakers 8 u. y Straw Bales 3 2 Comments APPENDIX D Notice of Termination Colorado Department of Public Health & Environment FOR AGENCY USE ONLY Water Quality Control Division WQCD-P-B2 REC 4300 Cherry Creek Drive South EFF Denver, Colorado 80246-1530 YEAR MONTH DAY INACTIVATION NOTICE FOR CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION Please print or type. Form must be filled out completely. Certification Number: COR -03 Permittee (Company) Name: Permittee Address: Site/Facility Name: Taxpayer ID or EIN Phone No. ( ) Construction Site Address/Location: County: Contact Person: Summary of work performed and description of final site stabilization: I certify under penalty of law that by the date of my signature below, all disturbed soils at the identified construction site have been finally stabilized; all temporary erosion and sediment control measures have been removed; all construction and equipment maintenance wastes have been disposed of properly; and all elements of the Stormwater Management Plan have been completed. I understand that by submitting this notice of inactivation, I am no Longer authorized to discharge stonnwater associated with construction activity by the general permit. I understand that discharging pollutants in stonnwater associated with construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act. I certify under penalty of law that I have personally examined and am familiar with the information submitted herein, and based on my inquiry of those individuals immediately responsible for obtaining the infonnation, I believe that the information is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment. (See 18 U.S.0 1001 and 33 U.S.C. 1319.) Signature of Penult Applicant (Legally Responsible Party) Date Signed Name (printed) 9/97/cn/in Title Appendix 9 Spill Prevention, Control and Countermeasure Plan (SPCC) Environmental Protection Agency Spill Prevention, Control & Countermeasure Plan Petroleum Development Corporation Garden Gulch Compressor Site Garfield County, Colorado MANAGEMENT APPROVAL AND CERTIFICATION This SPCC Plan will be implemented as herein described. Jeff Davis Name of Management Official Manager of Operations Title Signature Note: A Complete copy of this SPCC Plan will be maintained at the facility if the facility is normally attended at least four hours per day or at the nearest field office if the facility is not attended. CERTIFICATION I hereby certify that I have examined the facility, and being familiar with the provisions of CFR. Part 112. Attest that this SPCC Plan has been prepared in accordance with good engineering practices. Date of Inspection: June 23, 2003 Signature of Registered Professional Engineer Joseph T. Paluso Printed Name of Registered Professional Engineer Registration No. 22-150267-2202 State Utah 1 CERTIFICATION OF THE APPLICABILITY OF THE SUBSTANTIAL HARM CRITERIA CHECKLIST 1. Does the facility transfer oil over water to or from vessels and does the facility have a total storage capacity greater than or equal to 42,000 gallons (1,000 Bbls.)? Yes No X 2. Does the facility have a total oil storage capacity greater than or equal to 1 million gallons (23,810 Bbls.) and does the facility lack secondary containment that is sufficiently large to contain the capacity of the largest aboveground oil storage tank plus sufficient freeboard to allow for precipitation within any aboveground oil storage tank area? Yes No X 3. Does the facility have a total oil storage capacity greater than or equal to 1 million gallons (23,810 Bbls.) and is the facility located at a distance such that a discharge from the facility could cause injury to fish and wildlife and sensitive environments? Yes No X 4. Does the facility have a total oil storage capacity greater than or equal to I million gallons (23,810 Bbls.) and is the facility located at a distance such that a discharge from the facility would shut down a public water intake? Yes No X 5. Does the facility have a total oil storage capacity greater than or equal to 1 million gallons (23,810 Bbls.) and has the facility experienced a reportable oil spill in an amount greater than or equal to 10,000 gallons within the last five years? Yes No X CERTIFICATION I certify under penalty of law that I have personally examined and am familiar with the information submitted in this document, and that based on my inquiry of those individuals responsible for obtaining this information. I believe that the submitted information is true, accurate, and complete. Jeff Davis Name Signature Manager of Operations Title Date 2 Environmental Protection Agency Spill Prevention Control & Countermeasure Plan Petroleum Development Corporation Garden Gulch Compressor Site Garfield County, Colorado This SPCC Plan was prepared for the exclusive use and benefit of Petroleum Development Corporation. Any questions or comments in regard to the contents of this SPCC Plan or the provisions of 40 CFR, Part 112 should be directed to: William E. Roach, P.E. Roach & Associates Inc. 615 Washington Road Suite 404 Pittsburgh, PA 15228-1909 Phone Number: 412-344-9310 Fax Number: 412-344-9380 E-mail: Roachai@stargate.net Joseph R. Veltri Petroleum Development Corporation 103 East Main Street Bridgeport, WV 26330 Phone Number: 304-842-6256 Fax Number: 304-842-0913 E — Mail: PDC12@theglobe.com 3 1.0 FACILITY INFORMATION 1.1 Facility Type and Location Facility: Garden Gulch Compressor Site Type Facility: Onshore and Gas Production Facility State Identification: # NA Facility Location: Approximately 7 miles northeast of Parachute, Colorado. Location: SW Section 8, Township 6 South, Range 96 West. County: Garfield State: Colorado Directions to Facility: 7.0 N ON CR 215 OUT OF PARACHUTE, W 0.1, N 0.2, W 0.4 & TURN R UP INTO SITE. 1.2 Facility Owner and Operator Name and address of owner: Petroleum Development Corporation Address: 103 East Main Street Bridgeport, WV 26330 Telephone: (304) 842-6256 (800) 624-3821 Name and address of operator: Petroleum Development Corporation Address: 103 East Main Street Bridgeport, WV 26330 Telephone: (304) 842-6256 (800) 624-3821 1.3 Designated Person Accountable for 011 Spill Prevention at Facility See Emergency Response Plan, appendix A for designated person. 4 2.0 DESCRIPTION OF FACILITY OPERATIONS The Garden Gulch Compressor Site facility is located approximately 4 miles northeast of Parachute in the south central portion of Garfield County, Colorado as shown on Figure 1, Location Map. The site is located on the Parachute 7.5' Colorado Quadrangle Map. As seen in this figure, this site is located on the frontrange area of northeastern Colorado. The surface of the land in the vicinity of this site is used for irrigated farmland. The Garden Gulch Compressor Site facility is located in a canyon bottom. A small roadside irrigation ditch would collect and then distribute the runoff water. The irrigation at the subject site flows in a non-discriminatory pattern. Figure 2 is a Site Plan of the Garden Gulch Compressor Site facility. Photograph 1 shows the facility. This facility is inspected at least once every two (2) days by operations personnel. Any discharge which escapes the secondary containment will pool at the facility site due to the berms surrounding the facility area. The topography, normal production rates and frequency of inspection will restrict the extent of any spill outside of the secondary containment area prior to containment by mechanical means. Number Producing Oil Wells: Number Producing Gas Wells: Number Injection/Disposal Wells: Total Lease Production Rate: Oil Bbls./day: Gas Mcf/day Water Bbls/day 2.1 TANK BATTERY NA 0 0 NA NA NA The storage tanks at this facility are constructed to API specifications. The tank construction material is compatible with the fluids to be stored in each tank as detailed in Table 1 below. Each tank is equipped with vent lines and hatches to prevent tank rupture or collapse during filling or removing operations. Multiple tank installations also include equalizing lines between the tanks to prevent accidental overflow of a tank. A description of the secondary structure for this tank battery facility is included in Section 4 below. Table 1 Description Of Tank Battery Contents Of Tank Tank Construction Material Total Volume (Bbls) Condition Oil & Water Steel, Welded 500 Good Condition Oil & Water Fiberglass NA NA Oil & Water Concrete NA NA Water Poly NA NA Total Storage Capacity Oil & Water: 500 Bbls. 21,000 Gallons 5 2.2 TRANSFER FACILITIES Oil and water production is removed from facility by truck. A drip pan has not been provided to catch any drips or spills from the transfer hose during loading or unloading operations and any spills in this area will be cleaned through mechanical removal and remediation of soil. Any free product will be vacuumed and returned to production system. Table 2 Transfer Facilities Product Type Transfer Drip Pan Within Secondary Containment Structure Oil Transport Truck No No Water Transport Truck No Yes 2.3 TREATING AND PROCESSING EQUIPMENT: The treating and processing facilities at this site have no secondary containment. Normal production rates and frequency of inspection will restrict the extent of any spill prior to containment by mechanical means. Separators: 2 - horizontal, capacity 5 Bbls. 2.4 DESCRIPTION OF FLOW LINES Type of Material: Steel Flow lines are: Buried Catholic Protection: None 2.5 TYPES OF OIL HANDLED AND STORED AT FACILITY Gravity of Oil: 45° API @ 60° F 3.0 LOCAL WEATHER FACTORS Tank installations should include a means of secondary containment sufficient to contain the contents of the largest single tank with sufficient freeboard to allow for precipitation. The precipitation in this area is usually associated with thunderstorms between March and September. The average precipitation from a single thunderstorm is less than 3", however, a rainfall of 6" to 7" can occur from a single thunderstorm. Reporting Station: Reporting Period: Annual Rainfall: Highest 24-hour rainfall of record: Highest monthly average rainfall: Average monthly rainfall: Average Snowfall: Greeley, Colorado 1951 - 1974 3.20" 2.16" in May 1.02" The average annual snowfall is 35.7" with the highest snowfall of 8.1" occurring in March. The periods of snow cover are brief. On the average, only 18 days per year have at least 1" of snow on the ground, but the number of such days varies greatly from year to year. 6 Temperature: Average date of first freeze: Average date of last freeze: 4.0 DESCRIPTION OF SECONDARY CONTAINMENT Total Capacity of Secondary Containment: Recommended Freeboard for Rainfall: Net Capacity of Secondary Containment: Type and Condition of Berm: Type and Condition of Earth Floor: Direction and flow away from tank battery area: September 30 May 10 168 Bbls. 3" Inches 118 Bbls. Earth, gravel -good condition Earth & rock, gravel- good condition Sheet flow, non -discriminate A secondary containment structure surrounds the tank battery installation to prevent the spread of produced oil and water from an accidental discharge of fluids from the tank battery. However, due to the large area, there is no secondary containment surrounding the production facilities, or wellhead. Therefore, Petroleum Development Corporation must depend on early detection and quick response to contain any leaks from company facilities. Response procedures for spills are detailed in the Petroleum Development SPCC & Emergency Action Plan. Procedures for the drainage of accumulated rainwater from the secondary containment structure are detailed in the Petroleum Development Corporation SPCC Plan Manual. 5.0 PROBABLE DIRECTION AND FLOW RATE OF FLOW OF DISCHARGES As seen in Figure 1, the Garden Gulch Compressor Site facility is located on broad, flat land which has been graded to allow for roads and facility access. Any discharge which escapes the secondary containment will pool at the facility site due to the berms surrounding the facility area. Areas were potential for an oil spill to exist are: 1. Tanks - Leak from tank due to corrosion hole in tank shell, failure of vent, or lighting striking tank resulting in explosion with spillage and/or fire. 2. Flow Line - Corrosion leaks in line. 3. Vessels - Leaks and equipment failure. 4. Wellhead - Leaks and equipment failure. Table 3 Storage Capacity and Potential Discharge Source Contents Of Vessel Total Volume(Bbls.) Leak Rate (Bbls./Hr) Direction Of Flow Secondary Containment Tank Oil & Water 500 101 Sheet flow Dike Separator H.P. Oil & Water 10 1 Sheet flow None Wellhead Oil & Water NA 0.5 Sheet flow None Flowline Oil & Water NA 0.5 Sheet flow None 6.0 ENVIROMENTALLY SENSITIVE AREAS The subject facility is located in a canyon area. A ditch that runs along side the graded canyon road would collect and then distribute any runoff. 7 7.0 PLANS FOR THE PROTECTION OF ENVIROMENTALLY SENSITIVE AREAS As seen in Figure 1, the Garden Gulch Compressor Site facility is located on a sand hill. Any discharge which escapes the secondary containment will pool at the facility site. The topography, normal production rates and frequency of inspection will restrict the extent of any spill outside of the secondary containment area prior to containment by mechanical means. In the event of a release of produced fluids from this facility, dirt excavation equipment will be employed to prevent the spread of the discharged fluids. In the event that discharged fluids endanger waterways, flotation booms will be deployed to contain the discharged fluids until recovery operations are complete. Response procedures for spills are detailed in the Petroleum Development Corporation SPCC & Emergency Plan Manual. 8.0 PERSONNEL AND EQUIPMENT AVAILABLE FOR RESPONSE 8.1 See SPCC & Emergency Action Plan, Appendix A, for listing of Company Personnel and Equipment. 8.2 See SPCC & Emergency Action Plan, Appendix B, for listing of Company Personnel and equipment. 9.0 DISCHARGE PREVENTION PLAN The Petroleum Development Corporation Discharge Prevention Plan is considered to be an integral part of this SPCC Plan. The Discharge Prevention Plan details information and procedures for facility inspection, facility drainage, spill reporting and analysis, personnel training, and drilling workover activities. 9.1 A section for filing required Facility Inspection Forms can be found at the end of this section of the SPCC Plan. 9.2 A section required for filing required Spill Report Forms can be found at the end of this section of the SPCC Plan. 10.0 EMERGENCY RESPONSE PLAN The Petroleum Development Corporation Emergency Response Plan is considered to be an integral part of this SPCC Plan. 8 Compressor Compressor l 500 Gal. Fuel Tank ydrator Filter ollector N 10 Pig Launch Access FIGURE 1 SITE PLAN Petroleum Development Corporation Garfield, Colorado Garden Gulch Compressor Site SW Section 8, T. 6 S., R. 96 W. County: Garfield State: Colorado Date: June 23, 2003 PICTURES 11 Petroleum Development Corporation Facility Name: Garden Gulch Compressor Site Garfield County, Colorado 12 Appendix 10 Wildlife Habitat Profile Map & Wildlife Assessment and Mitigation Plan Wildlife Assessment Petroleum Development Corporation Garden Gulch Compressor Station Photo 1. Site of Garden Gulch Compressor Station, viewing from the northwest. Prepared for: Petroleum Development Corporation Prepared by: WestWater Engineering Inc. 2516 Foresight Circle #1 Grand Junction, CO 81505 970-241-7076 In coordination with: Cordilleran Compliance Services, Inc. Grand Junction, CO March 2007 Garden Gulch Compressor Station Wildlife Assessment Garfield County Special Use Permit Application Introduction The Petroleum Development Corporation's Garden Gulch Compressor Station site is located in NE' 'A SW ''A Section 8, T6S, R96W, approximately 7 miles northwest of Parachute, Colorado. The proposed site is at the mouth of Garden Gulch approximately 0.5 mile upstream of it's confluence with Parachute Creek (Figure 1, attached). The site is on private land, and access is via the Garden Gulch road. Site Inspection and Survey The perimeter and adjoining lands were surveyed on March 16, 2007, for vegetation communities, soils, and wildlife including raptor nests and indications of use by mule deer (Odocoileus hemionus), American elk (Cervus elaphus), and blue grouse (Dendragapus obscurus). The Colorado Division of Wildlife (CDOW), Natural Diversity Information Source (NDIS) was consulted for documentation of wildlife occurrence in the vicinity of the Compressor Station. Observations Vegetation The site of the Garden Gulch Compressor Station is located on a desert shrub terrace between the juniper woodland on the hillside to the north and the riparian creek bottom to the south. Vegetation in the project area included Artemesia tridentate spp. (sagebrush), Sarcobatus vermiculatus (greasewood), Atriplex confertifolia (shadscale), Gutierrezia spp. (snakeweed), Pascopyrum smithii (western wheatgrass) and Pleuraphis jamesii (galletta grass). The slope immediately north of the site was dominated by Juniperus utahensis (Utah Juniper) and shadscale, while the riparian creek bottom south of the site was dominated by Populus angustifolia (narrowleaf cottonwood) and Quercus gambelii (Gambel oak). Other vegetation observed included Opuntia spp. (prickly pear), Yucca spp. (yucca), and Bromus tectorum (cheatgrass). Use of the area by cattle was apparent, though the site did not show signs of severe overgrazing. Sagebrush in the area did not appear to be heavily browsed by mule deer, which may be due to several factors, including recent heavy use of the Garden Gulch road. Elk and Mule Deer The area of the Garden Gulch Compressor Station is within NDIS mapped mule deer and elk winter concentration areas and within mule deer severe winter range (CDOW, 2007). The project site provides good mule deer wintering habitat, offering cover in the riparian bottomland and juniper woodlands, and browse in the form of sagebrush and Gambel oak. Recent use by mule deer and blue grouse was apparent on the day of the survey, and 5-6 mule deer were observed across Garden Gulch within 200 meters of the site. WestWater Engineering Page 1 of 6 3/27/2007 Blue Grouse Blue Grouse habitat in the area is most likely limited to the slope north of the site in the Utah juniper/Gambel oak woodlands; however, they may use the riparian creek bottom in areas where Gambel oak predominates. Blue grouse sign was observed in two locations on the hillside, indicating that at least one grouse had been using the area recently. No indications of use by Blue grouse were observed in the creek bottom. Raptors A raptor nest search was conducted on foot through the juniper woodlands on the hillside north of the site and through the riparian creek bottom south of the site. No active raptor nest sites were observed. A possible raptor nest was observed southeast of the site in a narrowleaf cottonwood and is described below. UNHA 1 — UTM: 0746599mE, 4379999mN. This nest appears to be an old magpie nest that may have been used by a nesting raptor. No evidence of activity in 2006 remained (Photos 2 and 3). Photo 2. Nest in narrowleaf cottonwood Photo 3. Close-up of nest Nesting habitat for several species of raptor exists in the area surrounding the site. Cottonwoods and junipers to the north and south provide nesting habitat for accipiters, buteos, owls, and eagles. Cliffs to the north of the site provide nesting habitat for falcons and Golden eagles. Table 1 lists raptors that may nest in the surrounding area and notes whether or not each species is listed on the regional Birds of Conservation Concern (BOCC) list. This list was published by the U.S. Fish and Wildlife Service (USFWS) in 2002 as part of the protection and management of avian species (USFWS, 2002). In a Memorandum of Understanding, the U.S. Bureau of Land Management, USFWS and U.S. Forest Service placed the highest priority for conservation on birds included on the BOCC list. The regional subset of this list includes a register of Birds of Concern for the Southern Rockies and the Colorado Plateau, including western Colorado. Other Wildlife A list of wildlife species that could be expected to occur in the project area is presented in Table 2. The list was developed using Garfield County data obtained from CDOW, County Species WestWater Engineering Page 2 of 6 3/27/2007 Occurrence database and was modified by WestWater Engineering (WWE) biologists for the Garden Gulch Compressor Station site (CDOW, 2007). Modifications were based on the vegetation communities presently adjoining the site and potential wildlife using those vegetation communities, not only at the time of year of the survey but for any time during the annual life cycle of the species listed. Table I. Raptor species that may potentially nest in the project area Common Name Scientific Name BOCC Peregrine Falcon Falco peregrinus Yes Prairie Falcon Falco mexicanus Yes Cooper's Hawk Accipiter cooperii No Sharp -shinned Hawk Accipiter striatus No Northern Goshawk Accipiter gentiles No Red-tailed Hawk Buteo jamaicensis No Swainson's Hawk Buteo swainsoni Yes Golden Eagle Aquila chrysaetos Yes American Kestrel Falco sparverius No Flammulated Owl Otus flammeolus Yes Great Horned Owl Bubo virginianus No Northern Saw -whet Owl Aegolius acadicus No Long-eared Owl Asio otus No Table 2. Wildlife Occurrence Checklist for Garden Gulch Compressor Station Common Name Scientific Name Occurrence Abundance BIRDS American Crow Corvus brachyrhynchos Known to occur Fairly Common American Goldfinch Carduelis tristis Known to occur Fairly Common American Robin Turdus migratorius Known to occur Common American Tree Sparrow Spizella arborea Known to occur Unknown Bewick's Wren Thryomanes bewickii Known to occur Fairly Common Black -billed Magpie Pica pica Known to occur Common Black -capped Chickadee Poecile atricapillus Known to occur Fairly Common Brewers Blackbird Euphagus cyanocephalus Known to occur Common Brewer's Sparrow Spizella breweri Known to occur Common Brown -headed Cowbird Molothrus ater Known to occur Common Bushtit Psaltriparus minimus Known to occur Uncommon Chipping Sparrow Spizella passerina Known to occur Common Clark's Nutcracker Nucifraga columbiana Known to occur Fairly Common WestWater Engineering Page 3 of 6 3/27/2007 Table 2. Wildlife Occurrence Checklist for Garden Gulch Compressor Station Common Name Scientific Name Occurrence Abundance Common Raven Corvus corax Known to occur Fairly Common Dark -eyed Junco Junco hyemalis Known to occur Common Downy Woodpecker Picoidespubescens Known to occur Uncommon Field Sparrow Spizella pusilla Known to occur Unknown Green -tailed Towhee Pipilo chlorurus Known to occur Common Hairy Woodpecker Picoides villosus Known to occur Uncommon Juniper Titmouse Baeolophus griseus Known to occur Fairly Common Lesser Goldfinch Carduelis psaltria Known to occur Fairly Common MacGillivray's Warbler Oporornis tolmiei Known to occur Fairly Common Mourning Dove Zenaida macroura Known to occur Common Northern Flicker Colaptes auratus Known to occur Fairly Common Pygmy Nuthatch Sitta pygmaea Known to occur Rare Red Crossbill Loxia curvirostra Known to occur Uncommon Sage Sparrow Amphispiza belli Known to occur Uncommon Sage Thrasher Oreoscoptes montanus Known to occur Uncommon Spotted Towhee Pipilo maculatus Known to occur Common Vesper Sparrow Pooecetes gramineus Known to occur Common Western Bluebird Sialia mexicana Known to occur Rare Western Kingbird Tyrannus verticalis Known to occur Fairly Common White -breasted Nuthatch Sitta carolinensis Known to occur Fairly Common White -crowned Sparrow Zonotrichia leucophrys Known to occur Fairly Common Wild Turkey Meleagris gallopavo Known to occur Uncommon MAMMALS American Elk Cervus canadensis Known to occur Abundant Bobcat Lynx rufus Known to occur Common Common Porcupine Erethizon dorsatum Known to occur Uncommon Coyote Canis latrans Known to occur Abundant Deer Mouse Peromyscus maniculatus Known to occur Abundant Mule Deer Odocoileus hemionus Known to occur Abundant REPTILES Fence Lizard Sceloporus undulatus Known to occur Common Racer Coluber constrictor Known to occur Uncommon Western Terrestrial Garter Snake Thamnophis elegans Known to occur Fairly Common `Occurrence is for Garfield County in similar habitat and not necessarily this site as edited by WestWater. ` Abundance is for where found In Garfield County, not necessarily this site. Wildlife Mitigation and Management Recommendations Improve undisturbed sagebrush shrublands One strategy to mitigate for the loss of wildlife habitat from development of the site is to improve the condition of the vegetation elsewhere in unaffected sagebrush communities. Multiple enhancement practices to treat target vegetation communities can be employed. Mule deer, elk and many other sagebrush related species also benefit from treatments targeted for a specific species, e.g., brewer's and vesper sparrows, sage thrasher, and mountain bluebirds. WestWater Engineering Page 4 of 6 3/27/2007 Offsite mitigation treatment practices include mechanical removal of invasive pifion pine (Pinus edulis) or Utah juniper and chopping, grinding or mowing a portion of older, more senescent sagebrush and other deciduous shrubs (e.g., serviceber y (Amelancheir alnifolia) and Gambel oak). Another typical practice is removing or significantly reducing all or a portion of domestic livestock grazing. In areas that have been overgrazed, inter -seeding native grasses following the removal of domestic livestock will serve to reestablish an understory of desirable grass species. Improve previously disturbed sagebrush shrublands Another mitigation strategy is improving previously disturbed areas adjacent to the site. The reclaimed pipeline right-of-way leading to the site from the west would benefit from weed control, grazing management, and reseeding of sagebrush and grasses. The re -vegetation and weed control strategies outlined in the Integrated Vegetation and Noxious Weed Management Plan for this site could be applied to the pipeline west of the site for wildlife mitigation purposes (WWE, 2007). The recommended seed mix for the site includes aggressive native grasses that benefit wildlife and discourage weed invasion. For the purpose of permanent vegetation reestablishment on the pipeline right-of-way, the recommended seed mix would benefit from the addition of sagebrush seed, preferably collected from a local source. Seeding of sagebrush precludes the use of selective herbicides, so seeding must follow any weed control efforts planned for the right-of-way. Sagebrush seed should be broadcast on frozen soil or early snow cover and the recommended rate is 0.05-0.075 lbs. PLS per acre (NRCS, 2007). Minimize footprint of temporary disturbance The project should be planned to reduce the level of all soil -disturbing activities. Construction vehicles should be parked on previously disturbed lands during construction to further reduce temporary disturbance. Planning should include a feasibility study designed to identify, eliminate and reclaim unnecessary roads in the project area. Wildlife impacts could be mitigated by the elimination of vehicular traffic on multiple roads, which were observed in the project area. Re -seeding Temporary on-site disturbance areas should be re -seeded with aggressive native grasses. This practice reduces the potential for noxious weed invasion and is a positive measure for wildlife. These enhancement measures are described in the Integrated Vegetation and Noxious Weed Management Plan for this site (WWE, 2007). Fence Maintenance Any perimeter fencing should be maintained in a way to reduce the potential for entrapment from entangling in the fence. Any unnecessary existing fence should be removed to reduce potential wildlife entrapment in severe winters. WestWater Engineering Page 5 of 6 3/27/2007 REFERENCES CDOW. 2007. Wildlife species occurrence. State of Colorado, Dept. of Nat. Resources, Colorado Division of Wildlife, Denver, CO, at http://ndis.nrel.colostate.edu/wildlife.asp. NRCS. 2007. The PLANTS Database (http://plants.usda.gov). Natural Resource Conservation Service, National Plant Data Center, USDA, Baton Rouge, LA 70874-4490 USA. USFWS. 2002. Birds of conservation concern 2002. Division of Migratory Bird Management. United States Fish and Wildlife Service, Arlington, VA. WWE. 2007. Garden Gulch Compressor Station, integrated vegetation and noxious weed management plan, Petroleum Development Corporation. WestWater Engineering. WestWater Engineering Page 6 of 6 3/27/2007 Legend Survey Area 0 Unknown Raptor Nest Figure 1: Petroleum Development Corp. Garden Gulch Compressor Station Wildlife Assessment WestWater Engineering Feet 0 125 250 500 Appendix 11 Integrated Vegetation and Noxious Weed Management Plan Integrated Vegetation and Noxious Weed Management Plan Petroleum Development Corporation Garden Gulch Compressor Station Photo 1. PDC Garden Gulch Compressor Station site Prepared for: Petroleum Development Corporation Prepared by: WestWater Engineering, Inc. 2516 Foresight Circle #1 Grand Junction, CO 81505 970-241-7076 In Coordination with: Cordilleran Compliance Services, Inc. Grand Junction, CO March 2007 PDC Garden Gulch Compressor Station Integrated Vegetation and Noxious Weed Management Plan March 2007 Introduction The PDC Garden Gulch Compressor Station is located approximately 7 miles north of Parachute, Colorado, in NE 1/4 SW 1/4 Section 8, T.6S., R.96W., 6th P.M. (Map; Figure 2, attached). On March 16, 2007, a field inspection of the site was conducted by WestWater Engineering (W WE) biologists. The inspection identified appropriate topics for inclusion in an integrated vegetation and noxious weed management plan as required by Garfield County Regulation 9.07.04 (13) (BOCC, 2006). Factors considered include soil type and texture, existing land management, absence or presence of listed noxious weeds, and potential natural vegetation community. Landscape Setting The compressor station is located on a late Pleistocene terrace remnant above Garden Gulch, a stream marked perennial on USGS Topographic Series 7.5' map which was flowing at the time of inspection. Soils on site were formed in calcareous gravelly alluvium from mixed sources and the clayey loam is moderately fine texture. Slope is approximately 8% and erosion potential is moderate (NRCS, 1998). Immediately adjacent to the north are steep, colluvial slopes rising to the Green River formation escarpment. South, across the road, Garden Gulch was discharging approximately 5 cfs. Three vegetation communities converge to form a complex site as can be seen in Photo 1, cover page. According to NRCS (2006a), characteristic natural vegetation for the site is a sagebrush vegetation community including indian ricegrass (Achnatherum hymenoides), western wheatgrass (Pascopyrum smithit), bluebunch wheatgrass (Pseudorogneria spicata spicata), big sagebrush (Artemesia tridentata spp.), needleandthread (Hesperostipa comata comata) and bluebunch wheatgrass (Pseudoroegneria spicatum spicatum). Vegetation on the adjacent steep slope north of the site is composed of similar species with pinyon pine (Pinus edulis), Utah juniper (Juniperus utahensis) and mountain shrubs such as Gambel's oak (Quercus gambelii) in addition to sagebrush. South of the site across the road, the narrow band of riparian woodland is composed of an overstory of narrowleaf cottonwood (Populus angustifolia) with an understory of shrubs dominated by Gambel's oak. Targeted Weeds Six invasive weed species were found on or near the site in various stages of senescence and decay but readily identifiable. Weeds found and weeds to be vigilant for are shown in Table 1. Two species found near the site are Garfield County listed noxious weeds: houndstongue and common burdock. These two species were established in the undisturbed riparian woodland approximately 20 meters south of and parallel to the south boundary of the site. Musk thistle was not found but is a likely invader. The other species are not listed by Garfield County, but are listed by the State of Colorado or are proposed to be listed and are problematic for any re- seeding or reclamation proposed for the site. WestWater Engineering Page 1 of 9 3/27/2007 Table 1. PDC Garden Gulch Compressor Station List of Noxious Weeds *Common Name/ USDA Symbol/StatusScientific Name Type** Control Methods common burdock" ARM12 Arctium minus B Cut and bag mature seed -bearing plants. Cut and dig rosettes and bolting plants, re -seed with aggressive grasses. Herbicides probably necessary due to widespread infestation and large number of seed - bearing mature plants. cheatgrasso BRTE Bromus tectorum A Limit grazing, use pre -emergent followed by re- seeding. houndstongueA CYOF Cynoglossum officinale B Re -seed with aggressive grasses, remove at flowering or early seed, dig or grub at pre -bud or rosette stage or apply herbicides. horehound MAVU Marrubium vulgare P Cut and bag mature seed -bearing plants. Spot spray bolting or growing plants before inflorescence. Russian thistle SALSO Salsola spp. A Use pre -emergent or selective herbicide, then plant competitive grasses. salt cedarA TARA Tamarix ramosissima. T pary j2ora P Repeated or historic flooding of bottomlands to prevent seedling establishment; hand pulling seedlings; spray herbicides on basal portion of stems of young, smooth barked plants, cut larger plants and treat cut stumps within 30 minutes with herbicide plus an adjuvant (remove all stems from WTF after cutting - they will re -sprout if in contact with soil); shade intolerant - promote growth of native riparian species that will shade out the tamarisk. common mullein VETH Verbascum thapsus B Plant competitive grasses, hand pull, cut and bag mature parts after seed set Thistle, Musk^ Carduus nutans B Tillage or hand grubbing in the rosette stage, mowing at bolting or early flowering, seed head & rosette weevils, leaf feeding beetles, herbicides in rosette stage. *8 CCR 1203-19, Color do Department of Agriculture, AGarfield County Noxious Weed List, BState of Colorado "B" list, CState of Colorado "C" list. (State of Colorado, 2005) **A=annual, B=biennial, and P=perennial. (NRCS, 2006b) The pipeline right-of-way leading into the site from the west is invaded with horehound, cheatgrass, and common mullein. Horehound, although not currently regulated in Colorado, was also established in undisturbed soils on the steep hillside to the north as shown in Photo 2. Lack of weed control on the pipeline may lead to long-term problems with infestations on disturbed soils around the compressor station. Strategies for controlling weeds depends on the type of plant, whether annual, biennial or perennial. Tables 2 and 3 outline general strategies to control the type of weed present. Proper treatment requires positive identification of the species of weed. WestWater Engineering Page 2 of 9 3/27/2007 Photo 2. Horehound in undisturbed soil Photo 3. Common mullein rosette rnoto 4. Common mullein Photo 5. Common burdock seeds Photo 6. Common burdock rosette Photo 7. Seed bearing Houndstong WestWater Engineering Page 3 of 9 Photo 8. Houndstongue rosette 3/27/2007 Table 2. Treatment Strategies for Annual and Biennial Noxious Weeds Target: Prevent Seed Production 1. Hand grub (pull), hoe, till, cultivate in rosette stage and before flowering or seed maturity. If seeds develop, cut and bag seed heads. 2. Chop roots with a spade below soil level. 3. Treat with herbicide in rosette or bolting stage, before flowering. 4. Mow biennials after bolting stage, before seed set. Mowing annuals will not prevent flowering but can reduce total seed production. Table 3. Treatment Strategies for Perennials Target: Deplete nutrient reserves in root system, prevent seed production 1. Allow plants to expend as much energy from root system as possible. Do not treat when first emerging in spring but allow growth to bud/bloom stage. If seeds develop, cut and bag if possible. 2. Herbicide treatment at bud to bloom stage or in the fall (recommended after August 15 when natural precipitation is present). In the fall plants draw nutrients into the roots for winter storage. Herbicides will be drawn down to the roots more efficiently at this time due to translocation of nutrients to roots rather than leaves. If the weed patch has been present for a long period of time, another season of seed production is not as important as getting the herbicide into the root system. Spraying in fall (after middle August) will kill the following year's shoots, which are being formed on the roots at this time. 3. Mowing usually is not recommended because the plants will flower anyway. Seed production should be reduced. Many studies have shown that mowing perennials and spraying the re -growth is not as effective as spraying without mowing. Effect of mowing is species dependent; therefore, it is imperative to know the species and its basic biology. Timing of application must be done when biologically appropriate, which is not necessarily convenient. 4. Tillage may or may not be effective. Most perennial roots can sprout from pieces only 1/2" - 1" long. Clean machinery thoroughly before leaving the weed patch. 5. Hand pulling is generally not recommended for perennial species unless it is known the plants are seedlings and not established plants. Hand pulling can be effective on small patches but is very labor intensive because it must be done repeatedly. Current Amount of Infested Land The compressor station site is mostly barren land with few if any weeds or other vegetation. Within the perimeter of the compressor station which can be mostly seen in Photo 1, vegetation is not compatible with the industrial use of the property. The area immediately surrounding structures associated with the compressor station should be treated with soil sterilant herbicides to control all vegetation. Newer non-selective herbicides such as DuPont Sahara® are formulated to reduce migration and leaching into non -target areas and require very low amounts of active ingredient, which decreases probability of bio -accumulation in non -target species. Due to their low density, it is recommended that adjacent infestations of horehound, common burdock, and houndstongue be controlled with mechanical means. Control of these infestations in nearby undisturbed areas will serve to reduce weed invasions into nearby soils disturbed by construction activities. WestWater Engineering Page 4 of 9 3/27/2007 Photo 9. Compressor Station fill slope Photo 10. Flat area above fill slope in Photo 9 The fill slope shown above in Photo 9 is between the Garden Gulch road and the flat terrain created for the compressor station. It is recommended this area be treated with a soil sterilant as well as the flattened, usable portions of the site. Vegetation on the fill slope appears to be all weedy species, with Russian thistle, cheatgrass, and prickly lettuce (Lactuca serriola) creating a fire hazard with high volume traffic flow nearby. Best Management Practices The following practices should be adopted for future construction projects around the site to reduce the costs of noxious weed control. The practices include: • top soil, where present, should be segregated from deeper soils and replaced as top soil on the final grade, • top soil stockpiles should be seeded with non-invasive graminoids if stored longer than one growing season, • in all cases temporary disturbance should be kept to an absolute minimum, • equipment brought to the site should be cleaned of soils remaining from previous construction sites which may be contaminated with noxious weeds, • equipment and materials handling should be done on established sites, • if working in contaminated sites, equipment should be cleaned of potentially seed -bearing vegetative debris, • temporary disturbances should be immediately replanted with the recommended mix in the re -vegetation section. In areas with slope greater than 3% slope such as the fill slope in Photo 9, imprinting of the seed bed is recommended. Imprinting can be in the form of dozer tracks or furrows perpendicular to the direction of slope. When hydro -seeding or mulching, imprinting should be done prior to seeding unless the mulch is to be crimped into the soil surface. If broadcast seeding and harrowing, imprinting should be done as part of the harrowing. Furrowing can be done by several methods, the most simple of which is to drill seed perpendicular to the direction of slope in a prepared bed. Other simple imprinting methods include deep hand raking and harrowing, always perpendicular to the direction of slope. WestWater Engineering Page 5 of 9 3/27/2007 Herbicides A soil sterilant such as DuPont Sahara® is recommended for areas immediately surrounding structures associated with the compressor station to prevent any possible fire hazard on the site. Grazing To encourage re-establishment of desirable vegetation in surrounding areas, removal or significant reduction of domestic livestock grazing is recommended. Early spring grazing by cattle was evident on western wheatgrass and indian ricegrass at the time of inspection. Grazing by mule deer was also evident. Cattle as well as wildlife can spread seeds of noxious plants such as horehound, common burdock and houndstongue. However, wildlife numbers and movement cannot be controlled as readily as cattle grazing. Mechanical Horehound, common burdock, houndstongue, and common mullein can all be controlled mechanically. Senescent, seed bearing plant parts surrounding the site should be cut and bagged and disposed of in the county landfill. Rosettes can be cut below the surface of the soil with a shovel or hoe. Weeds to be controlled are found on the hillside north of the site and along Garden Gulch to the south. Alternative Methods An alternative method particularly for cheatgrass infestations and poor to non-existent topsoils, is the application of vesicular-arbuscular mycorrhizal fungi (V/AMF). These fungi, mostly of the genus Glomus, are symbiotic with about 80% of all vegetation. In symbiosis, the fungi increase water and nutrient transfer capacity of the host root system by as much as several orders of magnitude (Barrow and McCaslin, 1995). Over-the-counter V/AMF or AMF commercial products, which are better adapted to coating seeds when re -seeding and treating roots of live seedling trees and shrubs at time of planting, come in powder form and are available from many different sources. Some applicators, including a New Castle company, collect and grow Local accessions of V/AMF. The latter are applied to weed patches and are reputed to greatly increase competition of native plants with cheatgrass and Russian thistle, thereby providing a non -chemical control of some noxious weeds through increased competitiveness of native plants. Native vegetation must be present in sufficient numbers to benefit from simple application of AMF alone. Commercial Applicator Recommendation WWE recommends using a certified commercial applicator for initial control efforts. Using a local, licensed company will insure that the applicator has the full range of knowledge, skills, and equipment necessary, as well as familiarity with the area and specific regional issues related to vegetation management. When using V/AMF, WestWater recommends using a supplier of locally collected V/AMF, as the application of local accessions is expected to be more effective than the application of over- the-counter products. WestWater Engineering Page 6 of 9 3/27/2007 Re -vegetation The following seed mix is adapted to this site. The mix includes five species of native grasses known to be available commercially at reasonable costs (Table 4). Table 4. PDC Compressor Station Recommended Seed Mix and Rate for Drill or Hydro -Seed Application. Double for Broadcast. Scientific Name/Seeds per Pound Common Name/Preferred Cultivar No. PLS/Ft2 % of Mix PLS/Ft2 Application Rate Lbs PLS/acre Achnatherum hymenoides indian ricegrass/Paloma 8 22 2.5 Pseudoroegneria spicata Beardless bluebunch wheatgrass 2 11 .75 Pascopyrum smithii, 140,000 western wheatgrass/ Arriba 12 33 4.75 Hesperostipa comata comata, 115,000 needleandthread 4 11 1.5 Pseudoroegneria spicata spicata 140,000 bluebunch wheatgrass/ P7 8 22 2.5 Total 36 PLS/FT2 99* 12.75 lbs PLS/AC NRCS. 2002; CNHP. 1998. *Due to rounding this did not equal 100. Seeding rate should be doubled for broadcast application. Preferred seeding method is hydro seeding or multiple seed bin rangeland drill with no soil preparation other than simple grading to slope and construction of waterbars. Seed should be bagged separately so each size group of seed can be metered at the appropriate rate. Alternative seeding methods include but are not limited to: • harrow with just enough soil moisture to create a rough surface, broadcast seed and re - harrow, preferably at a 90 degree angle to the first harrow, • hand raking and broadcast followed by re -raking at a 90 degree angle to the first raking. • These are not the only means of replanting temporary disturbances around the site. However, these methods have been observed to be effective in similar landscapes. Life Cycle and Management Calendars Figure 1 is a 2 -year calendar for control and life cycle of biennial thistles. Not included is mechanical control, which is cutting of rosettes below the soil surface and can be done any time during the rosette stage. Table 5 is for other listed noxious weed species known to be present in the vicinity. W estW ater Engineering Page 7 of 9 3/27/2007 Figure 1. Life Cycle and Management strategies for biennial thistles. Herbicide Application Hvrb, App. FN alb Errlit, firm az l?et Year1 Year 2 (Hartzler, 2006) 'Species houndstongue Type* Jan Feb (March Table 5. Noxious Weed Biology April 'May June B rosettes prebud flowering - seed set ;July ''Aug germination! 1 growth salt cedar* common burdock P B semi- ..> > emerge set leaves flowering & seed germination rosettes bolting -i Knapweed, Russian P emerges - Sept Oct Nov Dec flowering & seed set flowering — - - seed set flowering H senescence & semi -dormancy rosettes regrowth r4 B = biennial; P = perennial Shaded areas indicate best control timing. *Tamarisk control can be done at any time of year, but is easier when leaves are absent and weather is cooler. (Sirota, 2004) Common chemical and trade names may be used in this report. The use of trade names is for clarity by the reader. Inclusion of a trade name does not imply endorsement of that particular brand of herbicide and exclusion does not imply non -approval. Certified commercial applicators will decide which herbicide to use and at what concentration. Landowners using unrestricted products must obey all label warnings, cautions, and application concentrations. The authors of this report are not responsible for inappropriate herbicide use by readers. WestWater Engineering Page 8 of 9 3/27/2007 i LITERATURE CITED Barrow, J.R., and Bobby D. McCaslin, 1995. Role of microbes in resource management in arid ecosystems. In: Barrow, J.R., E.D. McArthur, R.E. Sosebee, and Tausch, Robin J., comps. 1996. Proceedings: shrubland ecosystem dynamics in a changing environment. Gen. Tech. Rep. INT -GTR -338, Ogden, UT, USDA, Forest Service, Intermountain Res. Station, 275 pp. BOCC. 2006. Garfield County zoning resolution of 1978, amended October, 2006. Board of County Commissioners, Building and Planning Department, Glenwood Springs, CO, 78 pp. CNHP. 1998. Native Plant Re -vegetation Guide for Colorado. Caring for the Land Series, Vol. III, State of Colo., Colorado Natural Heritage Program, Div. Parks and Outdoor Rec., Dept. Nat. Res., Denver, CO, 258 pp. Hartzler, Bob. 2006. Biennial thistles of Iowa. ISU Extension Agronomy. URL: http://www.weeds.iastate.edu/mgmt/2006/iowathistles.shtml NRCS. 1998. Nihill series official description. Natural Resource Conservation Service. http://www2.ftw.nres.usda.gov/osd/dat/N/NIHILL.html) NRCS. 2002. Plant suitability and seeding rates for conservation plantings in Colorado. Technical Note No. 59 (rev), Natural Resource Conservation Service, USDA, CO Field Office, Lakewood, CO, 6 pp. NRCS. 2006a. Web Soil Survey, Natural Resource Conservation Service, USDA. URL: (http://websoilsurvey.nrcs.usda.gov) NRCS. 2006b. The PLANTS Database (http://plants.usda.gov). Natural Resource Conservation Service, National Plant Data Center, USDA, Baton Rouge, LA 70874-4490 USA. Sirota, Judith. 2004. Best management practices for noxious weeds of Mesa County. CSU Cooperative Extension Tri -River Area, Grand Junction, CO, 4 pp. State of Colorado. 2005. Rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act, 35-5-1-119, C.R.S. 2003. Department of Agriculture, Plant Industry Division, Denver, 78 pp. WestWater Engineering Page 9 of 9 3/27/2007 ative".Thistle Na itve Thrstle' Horehound, Common Mullein Legend Survey Area Figure 2: Petroleum Development Corp. Garden Gulch Compressor Station Integrated Vegetation & Noxious Weed Management Plan WestWater Engineering Feet 0 100 200 400 Appendix 12 Sound Study CORDI LLERAN March 15, 2007 826 21'h Road Grand Junction, CO 81505 T: 970.263.7800 F: 970.263.7456 Sound Level Study at Garden Gulch Compressor Site, Garfield County, CO A sound level study has been completed for Petroleum Development Corporation (PDC) at their Garden Gulch Compressor Site, located about 7.5 miles northwest of Parachute, CO. The site is located on a 3.5 acre property that is leased from Chevron USA, and is currently used for the purpose of operating a natural gas compressor station and for equipment storage. The area where the Garden Gulch Compressor Site is located is remote and there are no occupied structures within the near proximity. The area is therefore given the classification of "light industrial." Rule 802 of the Colorado Oil and Gas Conservation Commission (COGCC) Rules and Regulations, entitled "Noise Abatement," provides explanation for maximum allowable noise levels related to oil and gas operations. In areas given "light industrial" classification, these levels are set at 65 dB from 7am to 7pm, and 70 dB from 7pm to 7am. According to COGCC Rule 802, because no occupied structures are located within 350 feet of the Garden Gulch Compressor Station, sound levels are to be collected at 350 feet or the property line, whichever is greater. Sound readings were collected on two separate occasions, March 5th and 14th, 2007, between the hours of 8am and 5pm. Sound readings were collected at eight (8) separate locations, each 350 feet from the center of the two existing Ajax natural gas compressors, and evenly surrounding the site. Several sound readings were also collected along the edge of the site. Operation of heavy equipment and truck traffic were present in the vicinity while noise measurements were taken, and therefore measured sound levels are likely higher than those that are attributable to the operation of the compressor station alone. The sound measurements that were collected on these two occasions are provided on the attached figure. All measured sound readings along a 350 -foot perimeter around the center of the two existing compressors were below the allowable maximum sound level of 65 dB required by the COGCC, even with the presence of additional noise produced by heavy equipment and truck traffic in the area. The Garden Gulch Compressor Site, under the current equipment configuration, is therefore in compliance with Rule 802 of the COGCC's Rules and Regulations. Cordilleran Compliance Services, Inc. 826 21 to Road Grand Junction, CO 81505 Cordilleran Compliance Services, Inc. Grand Junction, CO • Denver, CO • Casper, WY • Laramie, WY Environmental Consulting Engineers and Scientists Sound Readings in Decibels (dB) o Mar 5, 2007 readings (dB) —Q Mar 14, 2007 readings (dB) -- 350 ft perimeter Garden Gulch Compressor Site Travel_Route 195 0 390. Parachute, CO 390 Feet w PAEG07036 PDC Compresso'SUP\GIS\PDC GarderiGulch Sound Study.mxd SOUND STUDY - CURRENT CONF GURATION GARDEN GULCH COMPRESSOR STATION PETROLEUM DEVELOPMENT CORP SPECIAL USE PERMIT GARFIELD COUNTY, COLORADO SECTION 8, T6S, R96W REVISION DATE 0311507 REVISION NUMBER 00 DRAWN BY: BD APPROVED BY: BD PROJECT it EGO 036 SCALE' AS SHOVVN CORDILLERAN AESTHETIC AND NOISE CONTROL REGULATIONS 801. INTRODUCTION The rules and regulations in this section are promulgated to control aesthetics and noise impacts during the drilling, completion and operation of oil and gas wells and production facilities. Any Colorado county, home rule or statutory city, town, territorial charter city or city and county may, by application to the Commission, seek a determination that the rules and regulations in this section, or any individual rule or regulation, shall not apply to oil and gas activities occurring within the boundaries, or any part thereof, of any Colorado county, home rule or statutory city, town, territorial charter city or city and county, such determination to be based upon a showing by any Colorado county, home rule or statutory city, town, territorial charter city or city and county that, because of conditions existing therein, the enforcement of these rules and regulations is not necessary within the boundaries of any Colorado county, home rule or statutory city, town, territorial charter city or city and county for the protection of public health, safety and welfare. 802. NOISE ABATEMENT a. The goal of this rule is to identify noise sources related to oil and gas operations that impact surrounding landowners and to implement cost-effective and technically -feasible mitigation measures to bring oil and gas facilities into compliance with the allowable noise levels identified in subsection c. Operators should be aware that noise control is most effectively addressed at the siting and design phase, especially with respect to centralized compression and other downstream "gas facilities" (see definition in the 100 Series of these rules). b. Oil and gas operations at any well site, production facility or gas facility, shall comply with the following maximum permissible noise levels. Operations involving pipeline or gas facility installation or maintenance, the use of a drilling rig, completion rig, workover rig, or stimulation is subject to the maximum permissible noise levels for industrial zones. The type of land use of the surrounding area shall be determined by the Commission in consultation with the local governmental designee taking into consideration any applicable zoning or other local land use designation. c. In the hours between 7:00 a.m. and the next 7:00 p.m. the noise levels permitted below may be increased ten (10) db(A) for a period not to exceed fifteen (15) minutes in any one (1) hour period. The allowable noise level for periodic, impulsive or shrill noises is reduced by five (5) db(A) from the levels shown. ZONE Residential/Agricultural/Rural Commercial Light industrial Industrial 7:00 am to next 7:00 pm 55 db(A) 60 db(A) 70 db(A) 80 db(A) 7:00 pm to next 7:00 am 50 db(A) 55 db(A) 65 db(A) 75 db(A) In remote locations, where there is no reasonably proximate occupied structure or designated outside activity area, the light industrial standard may be applicable. Pursuant to Commission inspection or upon receiving a complaint from a nearby property owner or local governmental designee regarding noise related to oil and gas operations, the Commission shall conduct an onsite investigation and take sound measurements as prescribed herein. The following provide guidance for the measurement of sound levels and assignment of points of compliance for oil and gas operations: (1) Sound levels shall be measured at a distance of three hundred and fifty (350) feet from the noise source. At the request of the complainant, the sound level shall also be measured at a point beyond three hundred fifty (350) feet that the complainant believes is more representative of the noise impact. If an oil and gas well site, production facility or gas facility is installed closer than three hundred fifty (350) feet from an existing occupied structure, sound levels shall be measured at a point twenty-five (25) feet from the structure towards the noise source. Noise levels from oil and gas facilities located on surface property owned, leased or otherwise controlled by the operator shall be measured at three hundred and fifty (350) feet or at the property line, whichever is greater. In situations where measurement of noise levels at three hundred and fifty (350) feet is impractical or unrepresentative due to topography, the measurement may be taken at a lesser distance and extrapolated to a 350 -foot equivalent using the following formula: db(A)DISTANCE 2 = db(A)DISTANCE 1 —20 x log10(distance 2/distance 1) 800-1 as of November 30, 2006 (2) Sound level meters shall be equipped with wind screens, and readings taken when the wind velocity at the time and place of measurement is not more than five (5) miles per hour. (3) Sound level measurements shall be taken four (4) feet above ground level. (4) Sound levels shall be determined by averaging minute -by -minute measurements made over a minimum fifteen (15) minute sample duration if practicable. The sample shall be taken under conditions that are representative of the noise experienced by the complainant (e.g., at night, morning, evening, or during special weather conditions). (5) In all sound level measurements, the existing ambient noise level from all other sources in the encompassing environment at the time and place of such sound level measurement shall be considered to determine the contribution to the sound level by the oil and gas operation(s). d. In situations where the complaint or Commission onsite inspection indicates that low frequency noise is a component of the problem, the Commission shall obtain a sound level measurement twenty-five (25) feet from the exterior wall of the residence or occupied structure nearest to the noise source, using a noise meter calibrated to the db(C) scale. If this reading exceeds 65 db(C), the Commission shall require the operator to obtain a low frequency noise impact analysis by a qualified sound expert, including identification of any reasonable control measures available to mitigate such low frequency noise impact. Such study shall be provided to the Commission for consideration and possible action. e. Exhaust from all engines, motors, coolers and other mechanized equipment shall be vented in a direction away from all occupied buildings. f. All facilities within four hundred (400) feet of occupied buildings with engines or motors which are not electrically operated shall be equipped with quiet design mufflers or equivalent. All mufflers shall be properly installed and maintained in proper working order. 803. LIGHTING To the extent practicable, site lighting shall be directed downward and internally so as to avoid glare on public roads and occupied buildings within seven hundred (700) feet. 804. VISUAL IMPACT MITIGATION Production facilities constructed or substantially repainted after May 30, 1992 which are observable from any public highway shall be painted with uniform, non -contrasting, non -reflective color tones, (similar to the Munsell Soil Color Coding System) and with colors matched to but slightly darker than the surrounding landscape. 800-2 as of November 30, 2006 Appendix 13 Associated Permits CDPHE Construction Stormwater Permit No. COR -03B055 RECEIVED NOV 10 1006 STATE OF COLORADO Sill Owens, Governor Dennis E. Ellis, Executive Director Dedicated to protecting and Improving the health and environment of the people of Colorado 4300 Cherry Creek Dr. S. Denver, Colorado 80246-1530 Phone (303) 692-2000 TDD Line (303) 691-7700 Located In Glendale, Colorado http://www.cdphe.slate.co.us 11/7/2006 Laboratory Services Division 8100 Lowry Blvd, Denver, Colorado 80230-8928 (303) 692-3090 Deward W. Gerdom, V P Exploration Petroleum Development Corporation P. O. Box 238 Parachute, CO 81635-0238 970/285-9606 RE: Final Permit, Colorado Discharge Permit System — Stormwater Certification No: COR -03B055, Garfield County Garden Gulch Gathering Local Contact: Charlie Patterson, Const. Foreman, 970/ 285-9606 Anticipated Activity: 12/01/2006 through 01/31/2007 On 13.75 acres (13.75 acres disturbed) Dear Sir or Madam: Colorado Department of Public Health and Environment Enclosed please find a copy of the permit certification that was issued to you under the Colorado Water Quality Control Act. Your certification under the permit requires that specific actions be performed at designated times. You are legally obligated to comply with all terms and conditions of the permit. Note that the stormwater permit for construction activities now covers conshuction sites disturbing down to one acre (the previous threshold was 5 acres). Effective July 1, 2002, any construction activity that disturbs at least 1 acre of land (or is part of a larger common plan of development or sale that will disturb at least 1 acre) must apply for permit coverage. Please read the permit and certification. If you have any questions please visit our website at http://www.cdphe.state.co.us/wq/permitsunit/wgcdpmt.html, or contact Matt Czahor at (303) 692-3575. Sincerely, 0°c'dot Kathryn Dolan Stormwater Program Coordinator Permits Unit WATER QUALITY CONTROL DIVISION Enclosure xc: Regional Council of Governments Garfield County Health Department District Engineer, Technical Services, WQCD Permit File Fee File Permit No. COR -030000 Facility No. COR -03B055 PAGE 1 of 17 CERTIFICATION CDPS GENERAL PERMIT STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION Construction Activity: Natural Gas Pipeline Construction This permit specifically authorizes: Petroleum Development Corporation to discharge stonnwater from the facility identified as Garden Gulch Gathering which is located at: Co Rd 215 Near Parachute Parachute, Co latitude 39.536, longitude 108.129 in Garfield County to: Parachute Creek effective: 11/07/2006 Annual Fee: $270.00 (DO NOT PAY NOW. You will receive a prorated bill.) Page 2of17 Permit No. COR -030000 CDPS• GENERAL PERMIT STORMWATERDISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY AUTHORIZATION TO DISCHARGE UNDER THE COLORADO DISCHARGE PERMIT SYSTEM In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et seq., CRS, 1973 as amended) and the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.; the "Act"), this permit authorizes the discharge of stormwater associated with construction activities certified under this permit, from those locations specified throughout the State of.Colorado to specified waters of the State. Such discharges shall be in accordance with the conditions of this permit. This permit specifically authorizes the facility.listed on page 1 of this permit to discharge stonnwater associated with construction activity, as of this date, in accordance with permit requirements and • conditions set forth in Parts I and II hereof. All discharges authorized herein shall be consistent with the terms and conditions of this permit. This permit and the authorization to discharge shall expire at midnight, June 30, 2007. Issued and Signed this 21st day of May, 2002 COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT SaAp pc Fn. J. David Holm, Director Water Quality Control Division DATE SIGNED: 1VIAY 21, 2002 EFFECTIVE DATE OF PERMIT: JULY 1, 2002 TABLE OF CONTENTS PART A. COVERAGE UNDER THIS PERMIT 3 1. Authority to Discharge 3 a) Applicable Sections 3 2. Industries Covered Under this Permit 3 a) Definitions 3 b) Types of Activities Covered by this Permit: 3 3. Permit Coverage Without Application 3 a) Applicable Sections 3 b) Local Agency Authority 3 c) Permit Coverage Termination 4 d) Compliance with Qualifying Local Program 4 e) Full Permit Applicability 4 4. Application, Due Dates 4 a) Application Due Dates 4 b) Summary of Application 4 5. Pennit Certification Procedures 4 a) Request for Additional Information 5 b) Automatic Coverage 5 c) Individual Permit Required 5 d) Temporary Coverage 5 e) General vs, Individual Permit Coverage 5 t) Local Agency Authority 5 6. Inactivation Notice 5 7. Transfer of Permit 5 8. Permit Expiration Date 6 9. Individual Permit Criteria 6 B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN 6 1. Site Description 7 2. Site Map 7 3. BMPs for Stormwater Pollution Prevention 7 a) Erosion and Sediment Controls 7 b) Materials Handling and Spill Prevention 8 4. Final Stabilization and Longterm Stormwater Management 8 5. Other Controls 8 6. Inspection and Maintenance 8 C. TERMS AND CONDITIONS 8 1. General Limitations 8 2. Prohibition of Non-stormwater Discharges 9 3. Releases in Excess of Reportable Quantities 9 4. Stormwater Management Plans 9 a) Signatory Requirements 9 b) SWMP Review/Changes 9 5. Inspections 9 a) Active Sites 9 b) Completed Sites 10 c) Winter Conditions 10 6. Reporting 10 7. SWMP Submittal Upon Request 10 D. ADDITIONAL DEFINITIONS 10 -2a- TABLE OF CONTENTS (coat.) E. GENERAL REQUIREMENTS 11 I. Signatory Requirements 11 2. Retention of Records 12 PART II A. MANAGEMENT REQUIREMENTS 12 1. Change in Discharge 12 2. Special Notifications - Definitions 12 3. Noncompliance Notification 13 4. Submission of Incorrect or Incomplete Information 13 5. Bypass 13 6, Upsets 13 7. Removed Substances 14 8. Minimization of Adverse Impact 14 9. Reduction, Loss, or Failure of Treatment Facility 14 10. Proper Operation and Maintenance 14 B. RESPONSIBILITIES 14 1. Inspections and Right to Entry 14 2. Duty to Provide Information 15 3. Transfer of Ownership or Control 15 4. Modification, Suspension, or Revocation of Permit By Division . 15 5. Permit Violations 16 6. Legal Responsibilities 16 7. Severability 16 8. Renewal Application 17 9. Confidentiality . 17 10. Fees 17 11. Requiring an Individual CDPS Permit 17 -2b- PARTI A. COVERAGE UNDER THIS PERMIT PARTI Page 3 Permit No. COR -030000 I. Authority to Discharge Under this permit, construction activities, including clearing, grading, and excavation, are granted authorization to discharge stormwater associated with construction activities into waters of the state of Colorado. a. Applicable Sections: This permit is made up of several parts, not all of which apply to all permittees. The permittee will be responsible for determining and then complying with the applicable sections, depending upon whether or not a Qualifying Local Program covers the site. For sites not covered by a Qualifying Local Program, all Parts of the permit except Part I,A.3 apply. 2. Industries Covered Under this Permit a) Definitions: 1) Stormwater: Stormwater is precipitation -induced surface runoff. 2) Construction activity: Construction activity includes clearing, grading and excavation activities. Construction does not include routine maintenance performed by public agencies, or their agents to maintain original line and grade, hydraulic capacity, or original purpose of the facility. 3) Small construction activity: Stormwater discharge associated with small construction activity means the discharge of stormwater from construction activities that result in land disturbance of equal to or greater than one acre and less than five acres. Small construction activity also includes the disturbance of less than one acre of total land area that is part of a larger common plan of development or sale, if the larger common plan will ultimately disturb equal to or greater than one and less than five acres. 4) Qualifying Local Program: This permit includes conditions that incorporate qualifying local erosion and sediment control program (Qualifying Local Program) requirements by reference. A Qualifying Local Program is a municipal stonnwater program for stormwater discharges associated with small construction activity that has been formally approved by the Division. 5) Other Definitions: Definitions of additional terms can be found in Part LD. of this permit. b) Types of Activities Covered by this Permit: This permit may authorize all new and existing discharges of stormwater associated with construction activity. This includes stormwater discharges from areas that are dedicated to producing earthen materials, such as soils, sand and gravel, for use at a single construction site. This permit also includes stonnwater discharges from dedicated asphalt batch plants and dedicated concrete batch plants. This permit does not authorize the discharge of mine water or process water from such areas. 3. Permit Coverage Without Application — for small construction activities under a Qualifying Local Program only If a construction site is within the jurisdiction of a Qualifying Local Program, the operator of the construction activity is authorized to discharge stormwater associated with small construction activity under this general permit without the submittal of an application to the Division. a) Applicable Sections: For sites covered by a Qualifying Local Program, only Parts 1.A.1, 1.A.2, 1.A.3, I.C.1, I.C.2, I.C.3, I.D and Part II of this permit, with the exception of Parts II.A.1, II.B.3, II.2.8, and 11.810, apply. b) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. PARTI Page 4 Permit No. COR -030000 A. COVERAGE UNDER THIS PERMIT (cont.) c) Permit Coverage Termination: When a site has been finally stabilized, coverage under this permit is automatically terminated. d) Compliance with Qualifying Local Program: A construction site operator that has authorization to discharge under this permit under Part I.A.3 shall comply with the requirements of the Qualifying Local Program with jurisdiction over the site. e) Full Permit Applicability: The Division may require any owner or operator within the jurisdiction of a Qualifying Local Program covered under this permit to apply for and obtain coverage under the full requirements of this permit. The owner or operator must be notified in writing that an application for full coverage is required. When a permit certification under this permit is issued to an owner or operator that would otherwise be covered under Part I.A.3 of this permit, the full requirements of this permit replace the requirements as per Part I.A.3 of this permit, upon the effective date of the permit certification. .A site brought under the full requirements of this permit must still comply with local stormwater management requirements, policies or guidelines as required by Part I.C.1.h of this Permit. 4. Application, Due Dates a) Application Due Dates: At least ten days prior to the commencement of construction activities, the operator of the construction activity shall submit an application form as provided by the Division, with a certification that the Stormwater Management Plan (SWMP) is complete. One original completed discharge permit application shall be submitted, by mail or hand delivery, to: Colorado Department of Public Health and Environment Water Quality Control Division WQCD-P-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 b) Summary of Application: The application requires, at a minimum, the following: 1) The operator's name, address, telephone number, tax payer identification number (or employer identification number), and the status as Federal, State, private, public or other entity; 2) Name, county and location of the construction site, including the latitude and Longitude to the nearest 15 seconds of the approximate center of the construction activity; 3) A brief description of the nature of the construction activity; 4) The anticipated starting date of the project and the anticipated schedule of completion 5) Estimates of the total area of the site, the area of the site that is expected to be disturbed, and the total area of the larger common plan of development or sale to undergo disturbance; 6) The name of the receiving water(s), or the municipal separate storm sewer system and the ultimate (i.e., named) receiving water(s); 7) Certification that the SWMP for the construction site is complete (see Part I.B. below); and 8) The signature of the applicant signed in accordance with Part I.E.1 of this permit. 5. Permit Certification Procedures If the general permit is applicable to the applicant's operation, then a certification will be developed and the applicant will be authorized to discharge stormwater under this general permit. PART I Page 5 Permit No. COR -030000 A. • COVERAGE UNDER THIS PERMIT (cont.) a) Request for Additional Information: The Division shall have up to ten days after receipt of the above information to request additional data and/or deny the authorization for any particular discharge. Upon receipt of additional information, the Division shall have an additional ten days to issue or deny authorization for the particular discharge. (Notification of denial shall be by letter, in cases where coverage under an alternate general permit or an individual permit is required, instead of coverage under this permit.) b) Automatic Coverage: If the applicant does not receive a request for additional information or a notification of denial from the Division dated within ten days of receipt of the application by the Division, authorization to discharge in accordance with the conditions of this permit shall be deemed granted. c) Individual Permit Required: If, after evaluation of the application (or additional information, such as the SWMP), it is found that this general permit is not applicable to the operation, then the application will be processed as one for an individual permit. The applicant will be notified of the Division's decision to deny certification under this general permit. For an individual permit, additional information may be requested, and 180 days will be required to process the application and issue the permit. d) Temporary Coverage: Notwithstanding Parts I.A,5.a-c, above, the Division reserves the right to temporarily cover stormwater discharge from construction activity under general permits, even though individual permit coverage may be more appropriate. Certification of these activities under a general permit does not in any way infringe on the Division's right to revoke that coverage and issue an individual permit or amend an existing individual permit. e) General vs. Individual Permit Coverage: Any owner or operator authorized by this permit may request to be excluded from the coverage of this permit by applying for an individual CDPS permit. The owner or operator shall submit an individual application, with reasons supporting the request, to the Division at least 180 days prior to any discharge. f) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction. 6. Inactivation Notice When a site has been finally stabilized in accordance with the SWMP, the operator of the facility must submit an Inactivation Notice that is signed in accordance with Part I.E.1. of this permit. The Inactivation Notice form is available from the Division and includes: a) Permit certification number; b) The pennittee's name, address, telephone number; c) Name, location, and county for the construction site for which the application is being submitted. d) Certification that the site has been finally stabilized, and a description of the final stabilization method(s). An inactivation form may not be required for small construction activities if application was made for coverage with a completion date less than 12 months from the start of construction activity. In such cases, permit certification may be authorized for a predetermined period from 3 to 12 months. The permit certification will include the automatic expiration date for permit coverage. If permit coverage beyond that date is needed (i.e., the site has not been fmally stabilized), the permittee must submit an extension request form to the Division at least 10 days prior to the expiration date. 7. Transfer of Permit When responsibility for stormwater discharges at a construction site changes from one individual to another, the permittee shall submit a completed Notice of Transfer and Acceptance of Terms of a Construction General Stormwater Discharge Permit Certification that is signed in accordance with Part LE.1. of this permit. The Notice of Transfer form is available from the Division and includes: PART I Page 6 Permit No. COR -030000 A. COVERAGE UNDER THIS PERMIT (cont.) a) Permit certification number. b) Name, location, and county for the construction site for which the application is being submitted. c) The current permittee's name, address, telephone number and the status as Federal, State, private, public or other entity. d) The new permittee's name, address and telephone number and the status as Federal, State, private, public or other entity. e) Certification that the new permittee has reviewed the permit and SWMP and accepts responsibility, coverage and liability for the permit. I) Effective date of transfer. If the new responsible party will not complete the transfer form, the permit may be inactivated if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the site. In this case, the new operator would be required to obtain permit coverage separately. 8. Permit Expiration Date Authorization to discharge under this general permit shall expire on June 30, 2007. The Division must evaluate and reissue this general permit at least once every five years and must recertify the applicant's authority to discharge under the general permit at such time. Any permittee desiring continued coverage under the general permit must reapply by March 31, 2007. The Division will determine if the applicant may continue to operate under the terms of the general permit. An individual permit will be required for any facility not reauthorized to discharge under the reissued general permit. 9. Individual Permit Criteria Aside from the activity type, the Division may use other criteria in evaluating whether an individual permit is required instead of this general permit. This information may come from the application, SWMP, or additional information as requested by the Division, and includes, but is not limited to, the following: a) the quality of the receiving waters (i.e., the presence of downstream drinking water intakes or a high quality fishery, or for preservation of high quality water); b) the size of the construction site; c) evidence of noncompliance under a previous permit for the operation; d) the use of chemicals within the stormwater system. In addition, an individual permit may be required when the Division has shown or has reason to suspect that the stormwater discharge may contribute to a violation of a water quality standard. 13. CONTENTS OF THE STORMWATER MANAGEMENT PLAN The SWMP shall be prepared in accordance with good engineering, hydrologic and pollution control practices. (The SWMP need not be prepared by a registered engineer.) The main objective of the plan shall be to identify Best Management Practices (BMPs) which when implemented will meet the terms and conditions of this permit (see Part I.C., below). The plan shall identify potential sources of pollution (including sediment) which may reasonably be expected to affect the quality of stormwater discharges associated with construction activity from the facility. In addition, the plan shall describe and ensure the implementation of BMPs which will be used to reduce the pollutants in stormwater discharges associated with construction activity. Construction operations must implement the provisions of the SWMP required under this part as a condition of this permit. The SWMP shall include the following items, at a minimum: PART I Page 7 Permit No. COR -030000 E. CONTENTS OF THE STORMWATER MANAGEMENT PLAN (cont.) 1. Site Description Each plan shall provide a description of the following: a) A description of the construction activity. b) The proposed sequence for major activities. c) Estimates of the total area of the site, and the area of the site that is expected to undergo clearing, excavation or grading. d) An estimate of the runoff coefficient of the site before and after construction activities are completed and any existing data describing the soil, soil erosion potential or the quality of any discharge from the site. e) A description of the existing vegetation at the site and an estimate of the percent vegetative ground cover. 1) The location and description of any other potential pollution sources, such as vehicle fueling, storage of fertilizers or chemicals, etc. g) The location and description of any anticipated non-stormwater components of the discharge, such as springs and landscape irrigation return flow. h) The name of the receiving water(s) and the size, type and location of any outfall or, if the discharge is to a municipal separate storm sewer, the name of that system, the location of the storm sewer discharge, and the ultimate receiving water(s). 2. Site Map Each plan shall provide a generalized site map or maps which indicate: - construction site boundaries - all areas of soil disturbance - areas of cut and fill - areas used for storage of building materials, soils or wastes - location of any dedicated asphalt or concrete batch plants - location of major erosion control facilities or structures - springs, streams, wetlands and other surface waters - boundaries of 100 -year flood plains, if determined. 3. BMPs for Stormwater Pollution Prevention The plan shall include a narrative description of appropriate controls and measures that will be implemented before and during construction activities at the facility. The plan shall clearly describe the relationship between the phases of construction and the implementation and maintenance of controls and measures. For example, which controls will be implemented during each of the following stages of construction: clearing and grubbing necessary for perimeter controls, initiation of perimeter controls, remaining clearing and grubbing, road grading, storm drain installation, final grading, stabilization, and removal of control measures. The description of controls shall address the following minimum components: a) Erosion and Sediment Controls. 1) Structural Practices. A description of structural site management practices which will minimize erosion and sediment transport. Practices may include, but are not limited to: straw bales, silt fences, earth dikes, drainage swales, sediment traps, subsurface drains, pipe slope drains, inlet protection, outlet protection, gabions, and temporary or permanent sediment basins. 2) Non -Structural Practices. A description of interim and permanent stabilization practices, including site- specific scheduling of the implementation of the practices. Site plans should ensure that existing vegetation is preserved where possible and that disturbed areas are stabilized. Non-structural practices may include, but are not limited to: temporary seeding, permanent seeding, mulching, geotextiles, sod stabilization, vegetative buffer strips, protection of trees, and preservation of mature vegetation. PARTI Page 8 Permit No. COR -030000 B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN (cont.) b) Materials Handling and Spill Prevention. The SWMP shall identify any procedures or significant materials (see definitions at Part I.D.) handled at the site that could contribute pollutants to runoff. These could include sources such as: exposed storage of building materials, fertilizers or chemicals; waste piles; and equipment maintenance or fueling procedures. Areas or procedures where potential spills can occur shall have spill prevention and response procedures identified. Measures to control stormwater pollution from dedicated concrete batch plants or dedicated asphalt batch plants covered by this certification, must be identified in the SWMP. 4. Final Stabilization and Longterm Stormwater Management The plan shall include a description of the measures used to achieve final stabilization and measures to control pollutants in stormwater discharges that will occur after construction operations have been completed. Final stabilization is reached when all soil disturbing activities at the site have been completed, and uniform vegetative cover has been established with a density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. For purposes of this permit, establishment of a vegetative cover capable of providing erosion control equivalent to pre- existing conditions at the site can be considered final stabilization. The permittee will be responsible for providing to the Division the documentation to make this comparison. The Division may, after consultation with the permittee and upon good cause, amend the final stabilization criteria for specific operations. S. Other Controls The plan shall include a description of other measures to control pollutants in stomtwater discharges, including plans for waste disposal and limiting off-site soil tracking. 6. Inspection and Maintenance The plan shall include a description of procedures to inspect and maintain in good and effective operating condition the vegetation, erosion and sediment control measures and other protective measures identified in the SWMP. C. TERMS AND CONDITIONS 1. General Limitations The following limitations shall apply to all discharges covered by this permit: a) Stormwater discharges from construction activities shall not cause or threaten to cause pollution, contamination or degradation of State waters. b) Concrete wash water shall not be discharged to state waters or to storm sewer systems. c) Bulk storage structures for petroleum products and other chemicals shall have adequate protection so as to contain all spills and prevent any spilled material from entering State waters. d) No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by the Division. In granting the use of such chemicals, special conditions and monitoring may be addressed by separate letter. e) The Division reserves the right to require sampling and testing, on a case-by-case basis, in the event that there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in removing pollutants in the effluent. Such monitoring may include Whole Effluent Toxicity testing. PART I Page 9 Permit No. COR -030000 C. •TERMS AND CONDITIONS (cont.) f) All wastes composed of building materials must be removed from the site for disposal in licensed disposal facilities. No building material wastes or unused building materials shall be buried, dumped, or discharged at the site. g) Off-site vehicle tracking of sediments shall be minimized. h) All dischargers must comply with the lawful requirements of municipalities, counties, drainage districts and other local agencies regarding any discharges of stormwater to storm drain systems or other water courses under their jurisdiction, including applicable requirements in municipal stormwater management programs developed to comply with CDPS permits. Dischargers must comply with local stormwater management requirements, policies or guidelines including erosion and sediment control. 2. Prohibition of Non-Stormwater Discharges a) Except as provided in paragraph b, below, all discharges covered by this permit shall be composed entirely of stormwater. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued for that discharge. b) Discharges from the following sources that are combined with stormwater discharges associated with construction activity may be authorized by this permit, provided that the non-stormwater component of the discharge is identified in the SWMP (see Part I.B.I.g of this permit): fire fighting activities - landscape irrigation return flow - springs 3. Releases in Excess of Reportable Quantities This permit does not relieve the permittee of the reporting requirements of 40 CFR 110, 40 CFR 117 or 40 CFR 302. Any discharge of hazardous material must be handled in accordance with the Division's Notification Requirements (see Part II.A.3 of the permit). 4. Stormwater Management Plans Prior to commencement of construction, the stormwater management plan (SWMP) shall be implemented for the construction site covered by this permit. a) Signatory Requirements: The plan shall be signed in accordance with Part I.E.1., with one retained on site. b) SWMP Review/Changes: The permittee shall amend the plan whenever there is a significant change in design, construction, operation, or maintenance, which has a significant effect on the potential for the discharge of pollutants to the waters of the State, or if the SWMP proves to be ineffective in achieving the general objectives of controlling pollutants in stormwater discharges associated with construction activity. 5. Inspections a) Active Sites - For sites where construction has not been completed, the permittee shall make a thorough inspection of their stormwater management system at least every 14 days and after any precipitation or snowmelt event that causes surface erosion. 1) The construction site perimeter, disturbed areas and areas used for material storage that are exposed to precipitation shall be inspected for evidence of, or the potential for, pollutants entering the drainage system. Erosion and sediment control measures identified in the SWMP shall be observed to ensure that they are operating correctly. FART1 Page 10 Permit No. COR -030000 C. TERMS AND CONDITIONS (cont.) 2) Based on the results of the inspection, the description of potential pollutant sources, and the pollution prevention and control measures that are identified in the SWMP shall be revised and modified as appropriate as soon as practicable after such inspection. Modifications to control measures shall be implemented in a timely manner, but in no case more than 7 calendar days after the inspection. 3) The operator shall keep a record of inspections. Any incidence of non-compliance, such as uncontrolled releases of mud or muddy water or measurable quantities of sediment found off the site, shall be recorded with a brief explanation as to the measures taken to prevent future violations, as well as any measure taken to clean up the sediment that has left the site. After adequate measures have been taken to correct any problems, or where a report does not identify any incidents of non-compliance, the report shall contain a signed certification indicating the site is in compliance. This record shall be made available to the Division upon request. b) Completed Sites - For sites where all construction activities are completed but final stabilization has not been achieved due to a vegetative cover that has been planted but has not become established, the permittee shall make a thorough inspection of their stormwater management system at least once every month. When site conditions make this schedule impractical, permittees may petition the Division to grant an alternate inspection schedule. These inspections must be conducted in accordance with paragraphs 1), 2), and 3) of Part I.C.5.a. above. c) Winter Conditions - Inspections, as described above in a) and b), will not be required at sites where snow cover exists over the entire site for an extended period, and melting conditions do not exist. This exemption is applicable only during the period where melting conditions do not exist. Regular inspections, as described above, are required at all other times. 6. Reporting No regular reporting requirements are included in this permit; however, the Division reserves the right to request that a copy of the inspection reports be submitted. 7. SWMP Submittal Upon Request Upon request, the permittee shall submit a copy of the SWMP to the Division, EPA or any local agency in charge of approving sediment and erosion plans, grading plans or stormwater management plans. All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b) of the CWA. The owner or operator of a facility with stormwater discharges covered by this pemnit shall make plans available to members of the public upon request, unless the SWMP has been submitted to the Division. However, the permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2, D. ADDITIONAL DEFINITIONS For the purposes of this permit: 1. BAT and BCT: (Best Available Technology and Best Conventional Technology) Technology based federal water quality requirements covered under 40 CFR subchapter N. 2. Best management practices (BMPs): schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of waters of the State. BMPs also include treatment requirements, operating procedures, and practices to control site runoff, spillage or leaks, waste disposal, or drainage from material storage. 3. Dedicated asphalt plants and concrete plants: portable asphalt plants and concrete plants that are located on or adjacent to a construction site and that provide materials only to that specific construction site. PARTI Page 11 Permit No. COR -030000 ADDITIONAL DEFINITIONS (cont.) 4. Final stabilization: when all soil disturbing activities at the site have been completed, and uniform vegetative cover has been established with a density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. For purposes of this permit, establishment of a vegetative cover capable of providing erosion control equivalent to pre-existing conditions at the site will be considered final stabilization. 5. Municipal storm sewer system: a conveyance or system of conveyances (including: roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains), owned or operated by a State, city, town, county, district, or other public body (created by state law), having jurisdiction over disposal of sewage, industrial waste, stormwater, or other wastes; designed or used for collecting or conveying stormwater. 6. Operator: the individual who has day-to-day supervision and control of activities occurring at the construction site. This can be the owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. It is anticipated that at different phases of a construction project, different types of parties may satisfy the definition of 'operator' and that the permit may be transferred as the roles change. 7. Outfall: a point source at the point where stormwater leaves the construction site and discharges to a receiving water or a stormwater collection system. 8. Part of a larger common plan of development or sale: a contiguous area where multiple separate and distinct construction activities may be taking place at different times on different schedules under one plan. 9. Point source: any discernible, confined and discrete conveyance from which pollutants are or may be discharged. Point source discharges of stormwater result from structures which increase the imperviousness of the ground which acts to collect runoff, with runoff being conveyed along the resulting drainage or grading pattern. 10. Process water: any water which during manufacturing or processing, comes into contact with or results from the production of any raw material, intermediate product, finished product, by product or waste product. This definition includes mine drainage. 11. Receiving Water: any water of the State of Colorado into which stormwater related to construction activities discharges. 12. Runoff coefficient: the fraction of total rainfall that will appear as runoff. 13. Significant Materials include but are not limited to: raw materials; fuels; materials such as metallic products; hazardous substances designated under section 101(14) of' CERCLA; any chemical the facility is required to report pursuant to section 313 of title III of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that have the potential to be released with stormwater discharge. 14. Stormwater: precipitation -induced surface runoff. 15. Waters of the state of Colorado: any and all surface waters that are contained in or flow in or through the state of Colorado. This definition includes all water courses, even if they are usually dry. E. GENERAL REQUIREMENTS 1. Signatory Requirements a) All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the following criteria: 1) In the case of corporations, by a principal executive officer of at least the level of vice-president or his er her duly authorized representative, if such representative is responsible for the overall operation of the facility from which the discharge described in the form originates; 2) In the case of a partnership, by a general partner; PARTI Page 12 Permit No, COR -030000 E. GENERAL REQUIREMENTS (cont.) 3) In the case of a sole proprietorship, by the proprietor; 4) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking elected official, or other duly authorized employee. b) Changes to authorization. If an authorization under paragraph a) of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph a) of this section must be submitted to the Division, prior to or together with any reports, information, or applications to be signed by an authorized representative. c) Certification. Any person signing a document under paragraph a) of this section shall make the following certification: "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." 2. Retention of Records a) The pennittee shall retain copies of the SWMP and all reports required by this permit and records of all data used to complete the application to be covered by this permit, for a period of at least three years from the date that the site is finally stabilized. b) The permittee shall retain a copy of the SWMP required by this permit at the construction site from the date of project initiation to the date of final stabilization, unless another location, specified by the permittee, is approved by the Division. PART II A. MANAGEMENT REQUIREMENTS 1. Change In Discharge The permittee shall inform the Division (Permits Unit) in writing of any intent to significantly change activities from those indicated in the permit application (this does not include changes to the SWMP). Upon request, the permittee shall furnish the Division with such plans and specifications which the Division deems reasonably necessary to evaluate the effect on the discharge and receiving stream, The SWMP shall be updated within 30 days of the changes. The permittee shall submit this notice to the Division within two weeks after making a determination to perform the type of activity referred to in the preceding paragraph. Any discharge to the waters of the State from a point source other than specifically authorized by this permit is prohibited. 2. Special Notifications - Definitions a) Spill: An unintentional release of solid or liquid material which may cause pollution of state waters. b) Upset: An exceptional incident in which there is unintentional and temporary noncompliance with permit effluent limitations because of factors beyond the reasonable control of the pennittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or careless or improper operation. PART II Page 13 Permit No. COR -030000 A. 'MANAGEMENT REQUIREMENTS (cont.) 3. Noncompliance Notification a) lf, for any reason, the permittee does not comply with or will be unable to comply with any permit limitations, standards or permit requirements specified in this permit, the permittee shall, at a minimum, provide the Water Quality Control Division and EPA with the following information: 1) A description of the discharge and cause of noncompliance; 2) The period of noncompliance, including exact dates and times and/or the anticipated time when the discharge will return to compliance; and 3) Steps being taken to reduce, eliminate, and prevent recurrence of the noncomplying discharge. b) The permittee shall report the following instances of noncompliance orally within twenty-four (24) hours from the time the permittee becomes aware of the noncompliance, and shall mail to the Division a written report within five (5) days after becoming aware of the noncompliance (unless otherwise specified by the Division): 1) Any instance of noncompliance which may endanger health or the environment; 2) Any spill or discharge of oil or other substance which may cause pollution of the waters of the state. c) The pemilttee shall report all other instances of non-compliance to the Division within 30 days. The reports shall contain the information listed in sub -paragraph (a) of this section. 4. Submission of Incorrect or Incomplete Information Where the permittee failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or report to the Division, the permittee shall promptly submit the relevant application information which was not submitted or any additional information needed to correct any erroneous information previously submitted. 5. Bypass The bypass of treatment facilities is generally prohibited. 6. Upsets a) Effect of an Upset An upset constitutes an affirmative defense to an action brought for noncompliance with permit limitations and requirements if the requirements of paragraph b of this section are met. (No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review.) b) Conditions Necessary for a Demonstration of Upset A permittee who wishes to establish the affirmative defense of upset shall demonstrate through properly signed contemporaneous operating logs, or other relevant evidence that: 1) An upset occurred and that the permittee can identify the specific cause(s) of the upset; 2) The permitted facility was at the time being properly operated; 3) The permittee submitted notice of the upset as required in Part II.A.3. of this permit (24-hour notice); and PART II Page 14 Permit No. COR -030000 A. MANAGEMENT REQUIREMENTS (cont.) 4) The permittee complied with any remedial measures required under Section 122.7(d) of the federal regulations. c) Burden of Proof In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of proof. 7. Removed Substances Solids, sludges, or other pollutants removed in the course of treatment or control of wastewaters shall be properly disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State. 8. Minimization of Adverse Impact The permittee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from noncompliance with any effluent limitations specified in this permit, including such accelerated or additional monitoring as necessary to determine the nature and impact of the noncomplying discharge. 9. Reduction, Loss, or Failure of Treatment Facility The permittee has the duty to halt or reduce any activity if necessary to maintain compliance with the permit requirements. Upon reduction, loss, or failure of the treatment facility, the permittee shall, to the extent necessary to maintain compliance with its permit, control production, or all discharges, or both until the facility is restored or an alternative method of treatment is provided. It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. 10. Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance includes effective performance, adequate funding, adequate operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems only when necessary to achieve compliance with the conditions of the permit. B. RESPONSIBILITIES 1. Inspections and Right to Entry The pemtittee shall allow the Director of the State Water Quality Control Division, the EPA Regional Administrator, and/or their authorized representative, upon the presentation of credentials: a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are required to be kept under the terms and conditions of this permit; b) At reasonable times to have access to and copy any records required to be kept wider the terms and conditions of this permit and to inspect any monitoring equipment or monitoring method required in the permit; and c) To enter upon the permittee's premises to investigate, within reason, any actual, suspected, or potential source of water pollution, or any violation of the Colorado Water Quality Control Act. The investigation may include, but is not limited to, the following: sampling of any discharge and/or process waters, the taking of photographs, interviewing permittee staff on alleged violations, and access to any and all facilities or areas within the permittee's premises that may have any effect on the discharge, permit, or alleged violation. PART II Page 15 Permit No. COR -030000 B. • RESPONSIBILITIES (cont.) 2. Duty to Provide Information The permittee shall furnish to the Division, within a reasonable time, any information which the Division may request to determine whether cause exists for modifying, revoking and reissuing, or inactivating coverage under this permit, or to determine compliance with this permit. The permittee shall also furnish to the Division, upon request, copies of records required to be kept by this permit. 3. Transfer of Ownership or Control Certification under this permit may be transferred to a new permittee if: a) The current permittee notifies the Division in writing when the transfer is desired; and b) The notice includes a written agreement between the existing and new permittees containing a specific date for transfer of permit responsibility, coverage and liability between them; and c) The moult permittee has met all fee requirements of the State Discharge Permit System Regulations, Section 61.15. 4, Modification, Suspension, or Revocation of Permit By Division All permit modification, inactivation or revocation and reissuance actions shall be subject to the requirements of the State Discharge Permit System Regulations, Sections 61.5(2), 61.5(3), 61.7 and 61.15, 5 C.C.R. 1002-61, except for minor modifications. a) This permit, and certification under this permit, may be modified, suspended, or revoked in whole min part during its term for reasons determined by the Division including, but not limited to, the following: 1) Violation of any terms or conditions of the permit; 2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or denial of a permit or to the establishment of terms or conditions of the permit; 3) Materially false or inaccurate statements or information in the application for the permit; 4) Promulgation of toxic effluent standards or prohibitions (including any schedule of compliance specified in such effluent standard or prohibition) which are established under Section 307 of the Clean Water Act, where such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any limitation for such pollutant in this permit. b) This permit, or certification under this permit, may be modified in whole or in part due to a change in any condition that requires either a temporary or permanent reduction or elimination of the permitted discharge, such as: 1) Promulgation of Water Quality Standards applicable to waters affected by the permitted discharge; or 2) Effluent limitations or other requirements applicable pursuant to the State Act or federal requirements; or 3) Control regulations promulgated; or 4) Data submitted pursuant to Part LB or Part I.C.1 indicates a potential for violation of adopted Water Quality Standards or stream classifications. PART II Page 16 Permit No. COR -030000 B. RESPONSIBILITIES (cont.) c) This permit, or certification under this permit, may be modified in whole or in part to include new effluent limitations and other appropriate conditions where data submitted pursuant to Part I indicates that such effluent limitations and conditions are necessary to ensure compliance with applicable water quality standards and protection of classified uses. d) At the request of the permittee, the Division may modify or inactivate certification under this permit if the following conditions are met: 1) In the case of inactivation, the pemrittee notifies the Division of its intent to inactivate the certification, and certifies that the site has been finally stabilized; 2) In the case of inactivation, the permittee has ceased any and all discharges to state waters and demonstrates to the Division there is no probability of further uncontrolled discharge(s) which may affect waters of the State. 3) The Division finds that the penr ittee has shown reasonable grounds consistent with the Federal and State statutes and regulations for such modification, amendment or inactivation; 4) Fee requirements of Section 61.15 of State Discharge Permit System Regulations have been met; and 5) Requirements of public notice have been met. For small construction sites covered by a Qualifying Local Program, coverage under this permit is automatically terminated when a site has been finally stabilized. 5. Permit Violations Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit. Dischargers of stormwater associated with industrial activity, as defined in the EPA Stormwater Regulation (40 CFR 122.26(b)(14), which do not obtain coverage under this or other Colorado general permits, or under an individual CDPS permit regulating industrial stormwater, will be in violation of the federal Clean Water Act and the Colorado Water Quality Control Act, 25-8-101. Failure to comply with CDPS permit requirements will also constitute a violation. Civil penalties for such violations may be up to $10,000 per day, and criminal pollution of state waters is punishable by fines of up to $25,000 per day. 6. Legal Responsibilities The issuance of this permit does not convey any property or water rights in either real or personal property, or stream flows, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations. Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties to which the permittee is or may be subject to under Section 311 (Oil and Hazardous Substance Liability) of the Clean Water Act. 7. Severability The provisions of this permit are severable. If any provisions of this permit, or the application of any provision of this pemrit to any circumstance, is held invalid, the application of such provision to other circumstances and the application of the remainder of this permit shall not be affected. PART II Page 17 Permit No. COR -030000 B. RESPONSIBILITIES (cont.) 8. Renewal Application If the permittee desires to continue to discharge, a permit renewal application shall be submitted at least ninety (90) days before this permit expires. If the permittee anticipates that there will be no discharge after the expiration date of this permit, the Division should be promptly notified so that it can inactivate the certification in accordance with Part II.B.44, 9. Confidentiality Except for data determined to be confidential under Section 308 of the Federal Clean Water Act and Regulations for the State Discharge Permit System 61.5(4), all reports prepared in accordance with the terms of this permit shall be available for public inspection at the offices of the Division. The permittee must state what is confidential at the time of submittal. Any information relating to any secret process, method of manufacture or production, or sales or marketing data which has been declared confidential by the permittee, and which may be acquired, ascertained, or discovered, whether in any sampling investigation, emergency investigation, or otherwise, shall not be publicly disclosed by any member, officer, or employee of the Commission or the Division, but shall be kept confidential. Any person seeking to invoke the protection of this section shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full disclosure of effluent data. 10. Fees The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Failure to submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant to Section 25-8-601 et. seq., C.R.S. 1973 as amended. 11. Requiring an Individual CDPS Permit The Director may require any owner or operator covered under this permit to apply for and obtain an individual CDPS permit if: a) The discharger is not in compliance with the conditions of this general permit; b) Conditions or standards have changed so that the discharge no longer qualifies for a general permit; or c) Data become available which indicate water quality standards may be violated. The owner or operator must be notified in writing that an application for an individual CDPS permit is required. When an individual CDPS permit is issued to an owner or operator otherwise covered under this General Permit, the applicability of the general permit to that owner or operator is automatically inactivated upon the effective date of the individual CDPS permit. COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT Vater Quality Control Division rVQCD-P-B2 4300 Cherry Creek Drive South Denver, Colorado 80246-1530 RATIONALE STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY GENERAL PERMIT IN COLORADO SECOND RENEWAL COLORADO DISCHARGE PERMIT NUMBER COR -030000 CONTENTS PAGE I. Introduction 1 II. Background 2 III. Stormwater Discharges Associated with Construction Activity 3 IV. Coverage Under this Pertnit 4 V. Application and Certification 4 VL Qualifying Local Programs 4 VII. Terms and Conditions of Permit 5 VIiI Changes Made After Public Notice 7 I. INTRODUCTION This permit is for the regulation ofstormwater runoff from construction activities. The term "construction activity" includes clearing, grading and excavation operations. "Stormwater" is precipitation -induced surface runoff This Rationale will explain the background of the Stormwater program, activities which are covered under this permit, how to apply for coverage under this paint', and the requirements of this permit. The forms discussed in the Rationale and Permit are available on the Division's website at: http://www.cdphe.state.co.us/wq/pertnitsunit/wqcdpmt.luml A. Changes in this General Permit Several notable changes from the previous General Permit for Construction Activities have been incorporated into this permit. Most of the changes are related to the Phase II revision to the storrnwater regulation in the Colorado Discharge Permit System Regulations (SCCR 1002-61), effective March 2, 2001. Significant changes are listed below: 1. Permit coverage is now required for construction sites that disturb 1 to 5 acres (i.e., small construction activities). Allowances have been made for small construction activities to comply with the requirements ofa Division -approved Qualifying Local Program (refer to section V1 below for a discussion ofQualt&ing Local Programs) in place of many specific requirements in the Permit, including requirements to submit an application, inactivation notice, and fees to the Division. Refer to Part I.A.3 of the Permit and section VILA of the Rationale for more details. 2. The requirements to submit with the application the Township, Range, section and quarter section ofa site and a list of any other environmental permits for the site have been removed. 3. Inactivation requirements have been changed to allow small construction activities that submit applications indicating a completion date 12 months or less from the start of construction activity to be authorized for a predetermined period from 3 to 12 months. The permit certification will include the automatic expiration date for permit coverage. This expiration date will be in place of the requirement to submit an Inactivation Notice. If permit coverage beyond the expiration date is needed (i.e., the site has not been finally stabilized), the per•rnittee rnust submit an extension request form to the Division at least 10 days prior to the expiration. COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division Rationale - Page 2. Permit No. COR -030000 I. INTRODUCTION (cont) 4. The Rationale discussion on the Exemptions for Small Municipalities (Section 1II.B) has been changed to include the March 10, 2003 deadline for permit coverage for municipally -owned industries. This did not involve any changes to the permit. 11. BACKGROUND As required under the Clean Water Act amendments of 1987, the Environmental Protection Agency (EPA) has established a framework for regulating municipal and industrial stormwater discharges. This framework is under the National Pollutant Discharge Elimination System (NPDES) program (Note: The Colorado program is referred to as the Colorado Discharge Permit System, or CDPS, instead of NPDES). The Water Quality Control Division ("the Division') has stormwater regulations (SCCR 1002-61) in place. These regulations require specific types of industrial facilities that discharge stormwater associated with industrial activity (industrial stormwater), to obtain a CDPS permit for such discharge. The regulations specifically include construction activities that disturb one acre of land or more as industrial facilities. Construction activities that are part of a larger common plan of development which disturb one acre or more over a period of time are also included. A. General Permits The Water Quality Control Division ("the Division) has determined that the use of general permits is the appropriate procedure for handling the thousands of industrial stormwater applications within the State. B. Permit Requirements This permit does not require submission of effluent monitoring data in the permit application or in the pertnit itself. It is believed that a fully implemented Storrnwater• Management Plan (SWMP) should be sufficient to control water quality impacts. The permit requires dischargers to control and eliminate the sources of pollutants in stormwater through the development and implementation ofa SWMP. The plan must include Best Management Practices (BMPs), which will include pollution prevention and source reduction measures. This will constitute BAT and BCT and should achieve compliance with water quality standards. The narrative permit requirements include prohibitions against discharges of non-stormwater (e.g., process water). Refer to Part I. C,2 of the permit. In addition, as a condition of this permit, the permittee is required to pay the annual fee as described in the Water Quality Control Act Failure to submit the required fee when due and payable is a violation of the permit and will result in enforcement action as discussed below. Permittees will be billed for the initial permit fee within a few weeks ofpermit issuance. Some construction activities may be required to comply with a Qualifying Local Program in place of ineeting several of the specific requirements in this permit. Sites covered by a Qualifying Local Program may not be required to submit an application for coverage or a notice of inactivation and may not be required to pay the annual fee. Refer to Section VILA of the Rationale for further information. C. Violations/Penalties Dischargers ofstormwater associated with industrial activity, as defined in the Regulations for the State Discharge Permit System (SCCR 1002-61), which do not obtain coverage under this or other Colorado general permits, or under an individual CDPS permit regulating industrial stormwater, will be in violation of the Federal Clean Water Act and the Colorado Water Quality Control Act, 25-8-101. For facilities covered under a CDPS permit, failure to comply with any CDPS permit requirement constitutes a violation. Civil penalties for violations of the Act or CDPS permit requirements may be up to $10,000 per day. Criminal pollution of state waters is punishable by fines of up to $25,000 per day. COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division Rationale - Page 3. Permit No. COR -030000 III. STORMWATE•R DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTIVITY The Stor•rnwater regulations requite that stormwater discharges associated with certain industrial activities be covered under the permit program. Construction activity that disturbs one acre or more during the life of the project is specifically included in the listed industrial activities, A. Construction Activity Construction activity includes clearing, grading and excavation activities. Construction does not include routine maintenance performed by public agencies, or their agents to maintain original line and grade, hydraulic capacity, or original purpose of the facility. Definitions of additional terms can be found in Part LD of the Permit. Stormwater discharges from construction activity require permit coverage, except for operations that result in the disturbance of less than one acre of total land area which are not part of a larger common plan of development or sale. A larger common plan of development or sale is a contiguous area where multiple separate and distinct construction activities may be taking place at different times on different schedules under one plan. B. Types of Activities Covered This permit is intended to cover most new or existing discharges composed entirely ofstonnwater from construction activities that are required by State regulation to obtain a permit. This includes stormwater discharges associated with areas that are dedicated to producing earthen materials, such as soils, sand, and gravel, for use at a single construction site. These areas may be located at the construction site or at some other location. This permit does not authorize the discharge of mine water or process water from such areas. This permit also includes stormwater discharges associated with dedicated asphalt plants and concrete plants located at the construction sites. C. Types of Activities NOT Covered This pertnit does not cover stormwater discharged from construction sites that is mixed with stormwater•from other types of industrial activities, or process water of any kind. Other types of industrial activities that require stormwater discharge permits pursuant to difjerent sections of the regulations (Regulation 5 CCR 1002-61, Section 61.2(e)(iii)(A-I, K)j, are not covered by this permit. This permit also does not cover the discharge of process water. If the construction activity encounters groundwater, a Construction Dewatering Discharge Permit (Permit Number COG -070000) tnust also be obtained in order to discharge this groundwater from the excavation site. An application for this permit can be obtained front the Division at the address listed in PartI.A.4.a of the Permit. D. Exemptions for Small Municipalities The Internodal Surface Transportation Efficiency Act of 1991 (Section 1068(c)) added an exemption to the stormwater regulations for municipalities with less than 100,000 population. The term "municipality" includes cities, towns, counties, special districts or any entity created by or pursuant to State law. Stormwater discharges associated with construction activity for facilities or sites that are owned or operated by a small municipality are not required to apply for or obtain a stormwaterper•mit until March 10, 2003. (Note: This exemption does not apply to other, privately owned construction sites within the sarne small municipality.) COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division Rationale - Page 4. Permit No. COR -030000 IV. COVERAGE UNDER THIS GENERAL PERMIT Under this general permit, operators ofstormwater discharges associated with construction activity may be granted authorization to discharge stonnwater into waters of the State of Colorado. This includes stonnwater discharges associated with industrial activity from areas that are dedicated to producing earthen materials, such as soils, sand and gravel, for use at a single construction site, and dedicated asphalt plants and dedicated concrete plants. This permit does not pre-empt or supersede the authority of local agencies to prohibit, restrict or control discharges of stormwater to storm drain systems or other water courses within theirjurisdiction. Authorization to discharge under the permit requires submittal ofa completed application form and a certification that the SWMP is complete, unless the site is covered by a Qualifying Local Program. Upon receipt of all required information, the Division may allow or disallow coverage under the general permit. V. APPLICATION AND CERTIFICATION At least ten days prior to the commencement of construction activities (i.e.; the initial disturbance of soils associated with clearing, grading, excavation activities, installation of structural BMPS, or other activities), the operator of the construction site shall submit an original completed application which includes the signed certification that the SWMP is complete. In order to avoid confusion during processing, original signatures are required for the application to be considered complete. For small construction sites only, if the site is covered by a Qual(ing Local Program (see below), submittal of an application is not required. For the purpose of this permit the "operator" is the person who has day-to-day control over the project. This can be the owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. At different times of a construction project, different types of parties may satisfy the definition of 'operator' and the certification may be transferred as roles change. (Note - Under the Federal regulations, this application process is referred to as a Notice of Intent, or NOI. For internal consistency with its current program, the Division will continue to use the terrn "application.') An outline of the permit application requirements is found in the permit at Part I.A.4.b. If this general permit is applicable, then a certification will be developed and the applicant will be certified under this general permit. Vi. QUALIFYING LOCAL PROGRAMS For stormwater discharges associated with small construction activity (i.e., one to five acre sites), the permit includes conditions that incorporate approved qualifying local erosion and sediment control program (Qualifying Local Program) requirements by reference. A Qualifying Local Program is a municipal stormwater program for stormwater discharges associated with small construction activity that has been formally approved by the Division. The requirements for Qualifying Local Programs are outlined in Part 61.8(12) of the Colorado Discharger Permit System Regulations (also see the Division's "Qualting Local Programs for Small Construction Sites - Application Guidance'). Such programs must impose requirements to protect water quality that are at least as strict as those required in this permit. A. Approval Termination: A Qualifying Local Program may be terminated by either the Division or the municipality. Upon termination of Division approval ofa QualEyingLocal Program, any small construction activity required to obtain permit coverage under Section 61.3(2)(h) of the State Discharge Permit System Regulations shall submit an application form as provided by the Division, with a certification that the Stormwater Management Plan (SWMP) is complete as required by Part 1.4.4 of the Permit, within 30 days. B Approval Expiration: Division approval ofa Qualifying Local Program will expire with this general permit on June 30, 2007 Any municipality desiring to continue Division approval of their program must reapply by March 31, 2007. The Division will determine if the program may continue as a approved Qualfying Local Program. .COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT,, Water Quality Control Division Rationale - Page 5. Permit No. COR -030000 VII. TERMS AND CONDITIONS OF PERMIT A. Coverage under a Qualifying Local Program — For Small Construction Sites Only For small construction sites (disturbing less than 5 acres) covered under a Qual Eying Local Program (see Section VI above), only certain permit requirements apply, as outlined below. The local program must have been forrnally designated by the Division to qualify. Most municipalities have some type of local program and may require permits and fees. However, simply having a program in place does not necessarily mean that it is a qualifying program and that a State permit is not required. The local municipality will be responsible for notifying operators and/or owners that they arc covered by a Qualifying Local Program. A list of municipalities with Qualifying Local Programs is also available at http://www.cdphe.state.co.us/wq/Per•tnitsUnit/wgcdprnt,httnl. The Division reserves the right to require any owner or operator within the Jurisdiction ofa Qualifying Local Program covered under this permit to apply for and obtain coverage under the full requirernents• of this permit. 1. Permit Coverage: If a construction site is within the jurisdiction ofa Qualifiting Local Program, the operator of the construction activity is authorized to discharge stormwater associated with small construction activity under this general permit without the submittal of an application to the Division. The permittee also is not required to submit an inactivation notice or payment of an annual fee to the Division. 2. Permit Terms and Conditions: The permittee covered by a Qualifying Local Program must comply with the requirements of that Qualifying Local Program , In addition, the following permit sections are applicable: i. I.A.), 1.A.2, and 1.4.3: Authorization to discharge and discussion of coverage under the permit. ii. LC.1: General limitations that must be met in addition to local requirements. LC.2, I. C.3: Prohibition of non-stormwater discharges unless addressed in a separate CDPS permit, and requirements related to releases of reportable quantities. iv. LD: Additional definitions. v. Part II (except for Paris ILA. 1, ILB.3, II.B.8, and H.B10): Specifically includes, but is not limited to, provisions applicable in the case of noncompliance with permit requirement, and requirements to provide information and access. B. Stormwater Management Plans (SWMPs) Prior to commencement of construction, a stormwater management plan (SWMP) shall be developed and implemented for each facility covered by this permit. A certification that the SWMP is complete must be submitted with the permit application. The SWMP shall identify potential sources of pollution (including sediment) which may reasonably be expected to affect the quality ofstormwater discharges associated with construction activityfrotn the facility. In addition, the plan shall describe the best management practice (BMPs) which will be used to reduce the pollutants in stormwater discharges from the construction site. Facilities must implement the provisions of their SWMP as a condition of this per•rnit. The SWMP shall include the following items: 1. Site Description 2. Site Map 3. BMPs for Stormwater Pollution Prevention 4. Longterm Stormwater Management 5. Other Controls 6. Inspection and Maintenance 7. Signatory Requirements and Availability 8. SWMP Review/Changes (See Part I.B. of the permit for a more detailed description of SWMP requirements) COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division Rationale - Page 6. Permit No. COR -030000 VII. TERMS AND CONDITIONS OF PERMIT (cont.) C. Monitoring Sampling and testing of stotmwater for specific parameters is not required on a routine basis under this permit. However, the Division reserves the right to require sampling and testing on a case-by-case basis, in the event that there is reason to suspect that compliance with the SWMP is a problem, or to measure the effectiveness of the BMPs in removing pollutants in the effluent D. Facility Inspections Active construction sites must inspect their stormwater management controls at least every 14 days and after any precipitation or snowtnelt event that causes surface erosion. At sites where construction has been completed but a vegetative cover has not been established, these inspections must occur at least once per month. At sites where winter conditions exist, inspections are not required during the period that the winter conditions exist. For all of these inspections, records must be kept on file. Refer to the permit at Part I. C..5 for detailed requiretnents of these inspections. E. Revision of SWMP Based on the results of the inspections (see D. above,), the description of potential pollutant sources and the pollution prevention and control measures, identified in the SWMP, and the control measures themselves, shall be revised and modified as appropriate as soon as practicable after such inspection. Modification of control measures shall be implemented in a timely manner, but in no case more than 7 calendar days after the inspection. F. Reporting The inspection record shall be made available to the Division upon request. Regular submittal of an annual repon is not required in this permit. C. Annual Fee The permittee is required to submit payment of an aminal fee as set forth in the Water Quality Control Act. Pennittees will be billed for the initial permit fee within a few weeks of permit issuance and then annually, based on a July 1 through June 30 billing cycle. For small construction activities, if application was made for coverage with a completion date 12 months at less from the start of construction activity, a fee will be assessed based on the estimated number of calendar quarters the site is active. Projects going beyond that time will be billed the standard annual fee. H. Inactivation Notice When a site has been finally stabilized in accordance with the SWMP, the operator of the facility shall submit an Inactivation Notice that is signed in accordance with Part 18.1 of the permit. The content of the Inactivation Notice is described in Part I.A.6 of the permit. A copy of the Inactivation Notice form will be mailed to the permittee along with the permit certification. Additional copies are available from the Division. An exception to the requirement to submit an inactivation has been included in the renewed permit for Small Construction Sites that will be finally stabilized within 12 months of the beginning of construction activities. In such cases, the permit certification will indicate the automatic expiration date. If permit coverage is needed beyond that date, an extension request form must be submitted to the Division at least 10 days prior to the expiration date. 'COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Control Division Rationale - Page 7. Permit No. COR -030000 VII. TERMS AND CONDITIONS OF PERMIT (cont) I. Transfer of Permit When responsibility for stormwater discharges at a construction site changes front one individual to another, the permit shall be transferred in accordance with Part LA.7 of the permit. The Notice of Transfer form will be mailed to the permittee along with the permit certification. Additional copies are available from the Division. If the new responsible party will not complete the transfer form, the permit may be inactivated if the permittee has no legal responsibility, through ownership or contract, for the construction activities at the site. In this case, the new operator would be required to obtain permit coverage separately. Duration of Permit The general permit will expire on June 30, 2007. The permittee's authority to discha ge.under this permit is approved until the expiration date of the general permit. Any permittee desiring continued coverage under the general permit must apply for recertification under the general permit at least 90 days prior to its expiration date. Nathan Moore March 11, 2002 VII CHANGES MADE AFTER PUBLIC NOTICE Several comments were received from the Environmental Protection Agency (EPA). Changes based on these comments and additional internal review are discussed below: A. The EPA commented that language needs to be added to the permit addressing the certification requirements for inspection reports. Part 1.E.1 of the Permit requires that all reports submitted to the Division include specific certification language. Because site inspections required by Part 1.0 5 of the permit are not submitted to the Division, they are not covered under Part 1.C.5 of the Permit or Regulation 5 CCR 1002-61, Section 61.4(1)0, which require specific certification language. However, Regulation 5 CCR 1002-61, Section 61.8(4)(o)(it)(B) does require that the permittee maintain a record summarizing the inspections that includes a certification that the site in compliance with the plan and the permit. Therefore, language has been added to Part 1.C.5 of the Permit, requiring that a signed statement be included with all records of inspection on the status of compliance at the site. B. The EPA recommended that the Permit and Rationale be changed to indicate that the application is due ten days prior to the commencement of construction activities, instead of prior to the anticipated date of discharge. The Division agrees that this wording is preferable and more accurately indicates the Division's existing interpretation of the regulations. These changes have been made. C. The EPA expressed concern with requiring a pertnittee to transfer permit coverage in cases where the new responsible party ntay not be cooperative. Language has been added to the Permit and Rationale clarifying that termination of permit coverage is allowed when the pernittee no longer has any legal responsibility through ownership or contract for the construction activity. D. The EPA commented on the lack of a definition for the terms "receiving water" and "ultimate receiving water": A definition has been added to the Permit, and the term "ultimate receiving water" clarified to indicate that it means the first named receiving water, if the discharge initially goes to an unnamed ditch or storm sewer. Nathan Moore May 15, 2002 Colorado Department of Public Health & Environment FOR AGENCY USE ONLY Water Quality Control Division WQCD-P-132 REC 4300 Cherry Creek Drive South EFF Denver, Colorado 80246-1530 YEAR MONTH DAY INACTIVATION NOTICE FOR CONSTRUCTION STORMWATER DISCHARGE GENERAL PERMIT CERTIFICATION Please print or type. Form must be filled out completely. Certification Number COR -03 Permittee (Company) Name: Permittee Address: Site/Facility Name: Taxpayer 1D or EIN Phone No.( ) Construction Site Address/Location: County: Contact Person: Summary of work performed and description of final site stabilization: I certify under penalty of law that by the date of my signature below, all disturbed soils at the identified construction site have been finally stabilized; all temporary erosion and sediment control measures have been removed; all construction and equipment maintenance wastes have been disposed of properly; and all elements of the Stonnwater Management Plan have been completed. I understand that by submitting this notice of inactivation, I am no longer authorized to discharge stonnwater associated with construction activity by the general permit. I understand that discharging pollutants in stormwater associated with construction activities to the waters of the State of Colorado, where such discharges are not authorized by a CDPS permit, is unlawful under the Colorado Water Quality Control Act and the Clean Water Act. I certify under penalty of law that I have personally examined and am familiar with the information submitted herein, and based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that the infonnation is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment. (See 18 U.S.0 1001 and 33 U.S.C. 1319.) Signature of Permit Applicant (Legally Responsible Party) Date Signed Name (printed) Title 9/97/cn/in HIGHLIGHTS CONSTRUCTION ACTIVITY STORMWATER GENERAL PERMIT PERMIT REQUIREMENTS (Read the Permit for full requirements): ♦ Stormwater Management Plan (SWMP): An up-to-date copy of the SWMP must be kept at the construction site. e Inspections: Inspection of stormwater management system required at least every 14 days and after any precipitation or snowmelt event that causes surface erosion. (See Exceptions, page 10 of permit.) ♦ Records: Records of inspections must be kept and be available for review. PERMIT FEE: Send payment only when you receive an invoice (sent once a year) TERMINATION OF PERMIT COVERAGE ♦ If the facility is finally stabilized, you may inactivate the permit, using the enclosed Inactivation Notice form. ♦ "Final stabilization" is reached when all the construction is complete, paving is finished, and the vegetation is established, not just reseeded. See permit, page 8 6/05 TRANSFER OR REASSIGNMENT OF PERMIT COVERAGE ♦ Transfer: Use this form to transfer permit coverage for your entire permitted area to a new owner or operator. ♦ Reassignment: For sites where multiple owners and/or operators will be active. Use this form to reassign permit coverage for only a portion of your permitted area to a new entity (who will then get their own permit). ♦ Refer to the Stormwater Fact Sheet for Construction Activities for additional guidance on when to transfer or reassign permit coverage. ♦ These documents are available for download from the Internet as PDF files. ♦ Fact Sheet: www.cdphe.state.co.us/wq/PerrnitsUnit/ConstFactSheet.pdf ♦ Transfer Form: www.cdphe.state.co,us/wq/PerntitsUnit/lransfer.pdf ♦ Reassignment Form: www.cdphe.state.co.us/wq/PerniitsUnit/Reassign.pdf ♦ If you cannot access these files, you can contact the Stormwater Program at cdphe.wgstorin@state.co.us or (303)692-3517 and leave a message with your name, address, and the document(s) you need. QUESTIONS? ♦ Permitting Web Page: www.cdphe.state.co.us/wq/PermitsUnit e Email cdphe.wastorm@state.co.us e Or call (303)692-3500, ask for Matt Czahor, Nathan Moore, or Kathy Dolan CDPHE Construction Air Permit No. 03PO0211 1 ) STATE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT AIR POLLUTION CONTROL DIVISION TELEPHONE: (303) 692-3150 CONSTRUCTION PERMIT 87, PERMIT NO: 03P00211 RAItcH 19, 2004 . FINAL APPROVAL DATE ISSUEp; • . PETROLEUM DEVELOPMENT coRpoRATIgN THE SOURCEWHJCH THIS PERMIT AFPLIEBIS.040RIBED AND LOCATED Ap.POI,LOVO: Portable nsitural gas compressor paakageinitiallylcidated at the Garden Gulch COmprOSSor Station, In the,NE 34 Cif:the SW 'A of Section 8, T6S R96W, in .6affleld County, Colorado. Homebase located at Bricigapart.WV. THE SPECIFIC EQUIPMENT OR ACTIVITY SIWECT:TO THIS PERMIT INCLUDES THEFOLLOWING: .. .: ... . • '., , • " .. . . . ' ' • ... ", ' .. : • • 1'• One (i) Aja*, Model DPC-2803LE, VW; 84637,:rated at 523 HP, two-cycle Lw-NOx :designed, - iiptarat:gakfited, internal oonibyet(OficilirOpatipgeriOinS: This emission unit POWers.a natural gas compressor. • Stack number CT -9866. THIS'RERMIT1SGElkilTE0 SUBJECT TO:ALLSUL4AND,REGULATIONSOF THg.0.20,R00 AIR (1196,417 P_9;t1TOP L COMmissiON ;ANO.::ThE/•q0V4)40O.AIR . POLLUTION FIftEygNTION:-AND CYNTER,9.,4:-:41704;(:te0.54.101. et 164); TO 90 1:$0.0404 Sims ANti'dONOITION*.li,10(4.115g0 IN THISDOCUMENT AND THE FOLLOWING SPECIFIQ TERMS AND CONDITIONS: " • - - . -'• • 1 - ; r6II3Ik.90199I006611all not axgatltwegtOOtOnt..(zoci) Opacity during norrnal;apatetlatt:oftha ;.!blitistatir400.01600,400,401411,40401175111,90-1V.Ibt.04100, blit.a(000,!*110140014.-, ,,;.--it.-: :.. .•..-', 4340:101004.0,01Itot 0 Rcle-e1:3.9:1fialVIRA. Teltmil,i/frifhYOffi.0/1S1#14'.:001.3S-tlfPgutngt00;':'..,' c , ,..,...,„ : :':,•;::fs,;-- oSitiotrop.9 h4ipp00010 a:W400S MR01.00.409:00,0140Pri ?Vs0tPtlit..Sig'01:9.;0 '...',. ' ''','• -: 'it .. ........ .. , ,... ... ,.. , . , ?.i-..., , IlOrnitiiumber shall marked oriiii0-stipjOct e!ltilprpont for ease of identifiCationi."(Heferehte:: Reg; p- ?aft P, 1‘1.E.) (State only eillgraeobjel :;-; ...-• • - . • . . 2 • : :',?'-',.'.. i.,.....: ;:::, . 3: ,... Eralselans.ofajr pollutants sheij not exceed tilefetiowirib limitations (as calculated in the Division's - . preliminary analysis): (Reference: Kegul@tion-3; Bill:AA) ...: . 7.- , . '. Islitto696•Qisideis• ' • • :',10 ,1 .Ipns pey,yepi V011itilttaliniq Compounds .. ...., . ..; . ......7:4f9ns.pOr year • ' ParbanMarioxide. • .. , . :: 9:6 tons peryear Note: Based on a fuel heating value of 1,000.0 Btu/scf ' 777/2082/001 ver. 2/00 Page 2 Colorado Department of Public Health and Environment Air Pollution Control Division PETROLEUM DEVELOPMENT CORPORATION Permit No.03P00211 FINAL APPROVAL 4. This source shall be limited. to a maximum consumption rate as listed below and all other activities, operational ra_ tesand nuriitiers of equipment as stated in the application. Annual records of the actual consumption rate shall he`'fnaintained by the applicant and: rhade available to the, Division: for inspection upon request. ;(Reference: Regulation:3, Part, III.A.4)` Consumption of natural gas as fuel shall not exceed 36:17 million sof per year. This portable engine shall;hot be relocated to a facility witho eut.frrst investigating any additional permitting .requirements Pbttable sources to be located et teurces with an operating.permit,shall Incorporate this portable source into the operating permit; if itremains on the site for more than two,... . (2) years Each time this equipntenf,js;moved to a new location within the State of Colorado the owner or operator shall file (elvcatjpn Nottce ;fi1te Dlyraipri sTiaIii receive such notice, at roast ten (10) days prior tdthe change in Igdatibn: "the Relocation Wotibe shall Include afacility etnission inventory'of all emis.5teh unit§ etaf e'elt (Referehee: Regulation'3, Part A, rikC 1.f and Part B.IV.E.). A revised Air Pollutant Emission Notice (ApEN) shall be:filed: (Reference: Reg.3, Part A, II.0 a. Annually.'whenevera'signincent increase in emissions occurs as follows: For any pollutant: for sources emitting'less than 100 tons per year, a change in actual emisslons of five (5). tons per.year or mor, above the level reported on the fast APEN; or '' Form y rich:criteria reportable pollutant: ifthe emissions inotease by 50% or five ;(5)tons per year, whichever is less, above the level" reported on tjie lastAPEN submitted to the Division. ' .. b. Whenever:thefe la a change in the owner or operator ofany. facility, process, or activity; or. Whenever l) W control .equipment is installed or gtieneyer, a different type of control et(�uipmeilt t'e race an existing type of conircz quipn,ent,.br �.>4 L'.n ( rY.'t.. gsr K .,., a ,.n ._ /'. .. .. .......,,:.. No laterthan30 days before the existing APEN expires SLn'dayA. Fade. P;Ei Permit Engineer By: Initial Approval: • • Issued on May 21, 2003. 777120821001 Roland ,C: Hea;'•P.E: Unit Leader ver. 2/00 Page 3 Colorado Department of Public Health and Environment Air Pollution Control Division PETROLEUM DEVELOPMENT CORPORATION Permit No.03PO0211 FINALAPPROVAI. Ndtes.to Per .mit Holder: • 1)` The production or raw material.prooetsing,limits"andemisslonlimitscontainedinthispermitarebasedon the pr6ductwri/processing rates requested in the permit application. These litpits may-berevised upon requestof:the.permittee,providing thePe•is no ezceedance of anyspeCific etr718Sion cohtrol regulation or ;any ambieht air qualitystandard Alevised air pollution emission notice•(AP�N) and application corm mustmust.betubmitted with a request for a perinit revision. 2) ;Tbe folloe ing emissions of nonccnterlanpbrtable air pollutants estimated bagel upon the material ppnsurnptions as indicated in this permit This information Is listed to inform the operator of the Division's analySisef the specificcompound4 This ipformation is listed on.ttte Division's` ernrsSion:iriventorysysterh. ASr# SUBSTANCE' ESIONri:* S*ij>.. b,.00.0 MIS7 g I61 AQekalde ycte >67 y ;.;.. s.. isiS4on levels oontalned tnthisperin4 are based on the fOilcik.09iplyss9; ,,.rotors: Nitjogen Oxides ..:. 2.0 grams per horsepower hpur Volatile brganio Compounds 1.4 grams per horsepoy gr jour:`` Qarbgri Monoxide: • - 1.9 grams per horsepowerhour, Fgaldehyde., - • 0.1600 grams. per horeapoWer.ho rmur Aoetaldehyde 0.0067 gramaper horseppwer-hour This em'ishipn unit ip crassified as a Mmor souree 77712082/001 ver. 2/00 Page 4 Colorado Department of Public Health and Environment Air Pollution Control Division PETROLEUM DEVELOPMENT CORPORATION• Permit No.03P00211 FINAL APPROVAL GENERAL TERMS AND CONDITIONS: (IMPORTANT! READ ITEMS 5.6,7 AND 8) • . . • • • 1. This -permit le iesued in reliance upon.the accuracy and COMPleteness.of Information supplleO by theepplicant and Is conditioned upon .conduct of the activity, or conothr011iOn;' InStallation and operation if thaiouthe; in . . accordanoeWiththis information and with representaliOneniade by•the applicant or epitiCancs agents. :sit is Sid only for the equiprnent and operations. or activity, Specific:ally identified on the porn*. • • • • ''. ' . . - c •... ..:, - . .. • 2. Unteie specifically stated otherwise, the general and specific Cciiiiiillons contained in this -ierrolt•ilieve been • Sp .. . .. . .. . . .: . .. . . . determined by the AFiCCi to be necessary to assure deriipilsnee'with the previsions of §Octiori 254-114;6(7)(a), . -• - .. -. :-.,• . : .• .. . ,. ....: • -.,• :.:- ••. • $. :Each end ova:Sind:don of this permit Ise Materiel pert hereol end lonet severable.. Any chattenceitO or aPpeal ova. odtiesior m aiss smo.constisa sjeatkin:otimientlreitierMilanduion SUCh eCidurreitOci this:.06811io'stbarci . .. , .• ,,..:. .,,...,..., ,.,,. .. . -•,; • , • - • ...• be eatred•Sienied.eb.frISO. This perrnItThey, be feyokect et'ayiy tIme.priortofiliel aprroystly.the Air Po , . '1' 4,•k,,,:-.•.. ••• - ..--.s. CiontiOIiiiiiiiidiAAP,90) on 'groandosabfettn,in'The'Ca30-Alx-Citiality:CorittorActandiregttltittohsgthe Air .. lity 0 lif 1st C n sitm (AQCC),fricludItt tationiteritie0filinyeSPreet term"Or coddlOWtit tho,perigh:Ifitie -•-.. .‘,.,i,•;„•,,..... i.:•!. z.: . :: .,...??.:. Diqigaiiftliatat 4,13fittiiIti.bacause condition's lniptiset Oppn::alpermit are contasterl;pt,p03410!part..or e. •.- '`;,:.'....' .... ' ' ''' - Di i '' crilikOkesitiarthir the applicant Or. owneter Operatertif atpUrneMayteititie§t ti haarIn0:41arelbp'009 •••••':".•'•••• ' . .-I,' fOKreVIOWOinther?Olvielbn's action. - • ' • - • . . , .,... . . . .., . . . permit and any required attachments must tietetained and made_ 4: ThIsavailable fortrispeCtiondienteqUest atthe lecetitieeM • • .. . lcirth• herein. VVith respect a portable. source Which IS Moved 'to a rieKleicetien;•Ercopy.df the . - . ... ...z. - - lurprocknilotigo':frequired by lawto be submitted tothe:APPOWheneveraportable•4burtie)trei64tOdIstiOuld • be. Eittgliett*Ahisiparrnit, The permit May be reissued te,knei" owner by the Aecpibltabyttiatt:la..A2C0 • . • fftr'egjOititioliNcy::3'-'Parti3 Section ill 8 upon a Mill:eat:for trail/005f ,ownership -aria motipiplow:afe:voyjgda Aftaiii.ehowe required fee.. •. , ... . . „ . . . . . :•.: • : ' - ,. :, ' .5. : ' 1$0arieei(tnitiellapproval) of an emission perrniltipes.not previdelinal" authorityforinis aCtlyityoropetaticiri of • this .16eicet..ziCrin at approval of the permit muWbe.'Sectited.froin the APCD in writing in accordance with the ..:' prOVISions:4251;114.3(12),(a) C.R.S. 'and ADOC Regulation No: 3; Part Et, Section N.H. Final eoproyatcannot betomea;.cotii the operation or activity commences atirthos•beetrvarified.otthe,mpo.*Orlitirthip0111d11 - .. --.'-reSpeCte•WitiVtha:-CoOdfitiois of the petpriitjlt thS'IA(NV:sti.g9tOrydrieS0( Ottritgildli Vlitit(0146.4016.6.0110 of • - SCchfireiapprOyel„Whicri does conslitote tier airthdrity.teeperata, Cernplhinctirir,drepetnritieriti/flOris J.,: . , . # ::: • ' must kii;ilfilitopfiritektwithin 1801101.siffrieibitAnetteeii01,6cipiratIps: - : ..: c... ..- • : ... f-:::' . - : . . .. , . • :„. ,. . • • . ..! . . . :, ... . . THIS PERMIT AUTOMATICALLY EXPIRES IF you (1) do not commence constatetiOn or operation within. la •9 -; month's- elk either the detwof Issuance of thIC permit or the date on which such constructiOh:oieCtivity wsis ....•• eOtied:Aridtopgitteppa as set forth in the.peingli whicheverie Mier; (2) dIscOntinue:eenetriptioilfe/4.peried of '10.4tottietiimtre;i9r::0-ie.hot coligetkqpiitt04116073/410InA JA-14,..:',.5.11i:•:,‘1tet(,:,, ,, . . i. leecr014a.ttnettiltss';41,4051,0litaiMPl.,$ei:jAi0*di4litk11400tP/Pltee3.0f-Vi,'t4.441Afigi 6ea1,C1i:,1Vl x:0;p40#4totiktht4PCp at festettli 4 tutittiOftebiliata-torpbttabipsbarbbit)•pabiltiobliabaab-otatit:.. ••:;•.;;:-6.2.ftflat3.4fitilttal operation or activity Failure to sofa 0:Vtelption of Bastion -.25q,1145(1,2)7(1)::043.8; and ;- .::.'.:•,A0'Q,0r',ke§ulati4n No; 3; Part B,- Section IVA.' '7.and Can reerilt in the reveceticrit.ef the p'erniit., .. yOW-most • • .,dot60,figiOrktpniplierice with The pemilt cotittitloris within -i MVOs.° Or commehpOriieht of operation as speed in -. • Caiidgibri-5: . ' - • . . , .. . , .. .. . , . . .• : .,• .: . .. , . • -.- , ---: .- : -., . . .,. . - . — . . . . . . :-- • • . , . ,8, • :Botigh d17-ft1C.R.S.requires thetlf souMe aS reqUired to fie an Air pollution Ernission Ne lice (A PN. ) g .. , 4,7(2)(a), . . ,. - • ' r•;••••• . increCiay‘imaniMei fee •to cover the .easta_of inepeeliene and adinblettatigri. If a SOUredOradivityls.te•be t s -;0$6niihtilek the '.15whermust notify :DMeleif in Wrilingcreqiieelliii .2 :candellatIon:Of 'Ilie':ieniilL:•• Lipari: • • ' . :Metitiontlok anntial.fee:bliling will 'emanate. 7- - , • • ' •'• • .: : ., . •• • . . . . ._ . . . , •• i. . • „ .' ... . . . .... -.' • . . . ... ..... • '':' , 9; •••.:2 Violatien of the•terins pf a permit or of the provisions of the Colorado Alt Pollution Prevention end canttotAct or - • • ibetegUlatIatia•Cf the A0CC may result in adintrilstretive, civil or criminal enforceineht actions under 'Sectiond 25- 7-115 (enforcemen», -121 (Injunctions), -122.(Civil penalties), -122.1 [criminal peria(tlet). C.R.S. . . 77712082/001 ver. 2/00 CDPHE Construction Air Permit No. 03PO0276 STATE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT AIR POLLUTION CONTROL DIVISION TELEPHONE: (303) 692-3150 CONSTRUCTION PERMIT PERMIT NO: 03P00276 FINAL APPROVAL DATE ISSUED: July 6, 2006 ISSUED TO: PETROLEUM DEVELOPMENT CORPORATION THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Portable natural gas compressor package Initially located at the Garden Gulch Compressor Station, in the NE 1/4 of the SW % of Section 8, T6S R96W, in Garfield County, Colorado. Homebase located at Bridgeport WV. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: One (1) Ajax, Model DPC-2804LE, S/N: 84851, rated at 697 HP, two-cycle Low-NOx designed, natural gas fired, internal combustion reciprocating engine. This emission unit powers a natural gas compressor. Stack number CT -10065. THIS PERMIT IS GRANTED SUBJECT TO ALL RULES AND REGULATIONS OF THE COLORADO AIR QUALITY CONTROL COMMISSION AND THE COLORADO AIR POLLUTION PREVENTION AND CONTROL ACT C.R.S. (26.7.101 et see), TO THOSE GENERAL TERMS AND CONDITIONS INCLUDED IN THIS DOCUMENT AND THE FOLLOWING SPECIFIC TERMS AND CONDITIONS: 1. Visible emissions shall not exceed twenty percent (20%) opacity during normal operation of the source. During periods of startup, process modification, or adjustment of control equipment visible emissions shall not exceed 30% opacity for more than six minutes in any sixty consecutive minutes. EPA Method 9 shall be used to measure opacity. (Reference: Regulation 1, Section II.A.1. & 4.) 2. The permit number shall be marked on the subject equipment for ease of identification. (Reference: Reg. 3, Part B, IILE.) (State only enforceable) 3. Emissions of air pollutants shall not exceed the following limitations (as calculated in the Division's preliminary analysis): (Reference: Regulation 3, Part 6, II.A.4) Nitrogen Oxides. 13.5 tons per year Volatile Organic Compounds: 9.4 tons per year Carbon Monoxide. 12.8 tons per year Note: Based on a fuel heating value of 1,000.0 Btu/scf 4. This source shall be limited to a maximum consumption rate as listed below and all other activities, operational rates and numbers of equipment as stated in the application. Annual records of the actual consumption rate shall be maintained by the applicant and made available to the Division for Inspection upon request. (Reference: Regulation 3, Part B, II.A.4) Consumption of natural gas as fuel shall not exceed 48.18 million scf per year. 777/2099/001 ver. 2/00 Page 2 Colorado Department of Public Health and Environment Air Pollution Control Division PETROLEUM DEVELOPMENT CORPORATION Permit No.03PO0276 FINAL APPROVAL 5. This portable engine shall not be relocated to a facility without first investigating any additional permitting requirements. Portable sources to be located at sources with an operating permit, shall Incorporate thls portable source into the operating permit, if it remains on the site for more than two (2) years. 6. Each time this equipment is moved to a new location within the State of Colorado the owner or operator shall file a Relocation Notice. The Division shall receive such notice, at least ten (10) days prior to the change in location. The Relocation Notice shall include a facility emission inventory of all emission units at the site. (Reference: Regulation 3, Part A, II.C.1.f and Part B.III.E.). 7. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Reg.3, Part A, II.C) a. Annually whenever a significant Increase in emissions occurs as follows: For any criteria pollutant: For sources emitting less than 100 tons per year, a change in actual emissions of five (5) tons per year or more, above the level reported on the last APEN; or For any non-criteriareportable pollutant: If the emissions increase by 50% or five (5) tons per year, whichever is less, above the level reported on the last APEN submitted to the Division. b. Whenever there is a change in the owner or operator of any facility, process, or activity; or c. Whenever new control equipment is installed, or whenever a different type of control equipment replaces an existing type of control equipment; or d. Whenever a permit limitation must be modified; or e. No later than 30 days before the existing APEN expires. By: /!/e*n Dennis M. My Permit Engine Permit History: Initial Approval issued on May 21, 2003. By:i��` R K Hancock III, P.E. Unit Leader 777/2099/001 ver. 2/00 Page 3 Colorado Department of Public Health and Environment Air Pollution Control Division PETROLEUM DEVELOPMENT CORPORATION Permit No.03PO0276 FINAL APPROVAL Notes to Permit Holder: 1) The production or raw material processing limits and emission limits contained in this permit are based on the production/processing rates requested in the permit application. These limits may be revised upon request of the permittee providing there is no exceedance of any specific emission control regulation or any ambient air quality standard. A revised air pollution emission notice (APEN) and application form must be submitted with a request for a permit. revision. 2) The following emissions of non -criteria reportable air pollutants are estimated based upon the material consumptions as indicated in this permit. This Information is listed to inform the operator of the Division's analysis of the specific compounds. This Information Is listed on the Division's emission inventory system. C.A.S. # SUBSTANCE EMISSIONS ILBNRT 50-00-0 Formaldehyde 2,153.7 75-07-0 Acetaldehyde 90.2 3) The emission levels contained in this permit are based on the following emission factors: Nitrogen Oxides: 2.0 grams per horsepower -hour Volatile Organic Compounds: 1.4 grams per horsepower -hour Carbon Monoxide: 1.9 grams per horsepower -hour Formaldehyde 0.1600 grams per horsepower -hour Acetaldehyde 0.0067 grams per horsepower -hour 4) In accordance with C.R.S. 25-7-114.1, the Air Pollutant Emission Notice (APEN) associated with this permit is valid for a term of five years. The five-year term for this APEN expires on March 16, 2008. A revised APEN shall be submitted no later than 30 days before the five-year term expires. 5) This emission unit Is classified as.a: Minor source 777/2099/001 ver. 2/00 Page 4 Colorado Department of Public Health and Environment Air Pollution Control Division PETROLEUM DEVELOPMENT CORPORATION Permit No.03P00276 FINAL APPROVAL GENERAL TERMS AND CONDITIONS: (IMPORTANT! READ ITEMS 5,6,7 AND 8) 1. This permit is issued In reliance upon the accuracy and completeness of Information supplied by the applicant and is conditioned upon conduct of the activity, or construction, Installation and operation of the source, In accordance with this information and with representations made by the applicantor applicant's agents. It is valid only for theequipment and operations or activity specifically identified on the permit. 2. Unless specificallystated otherwise, the general and specific conditions contained In thls permit have been determined by the APCD to be necessary to assure compliance with the provisions of Section 267-114.5(7)(a), C.R.S. 3. Each and every condition of this permit is a material part hereof and is not severable. Any challenge to or appeal of, a condition hereof shall constitute a reaction of the entire permit and upon such occurrence, this permit shalbe deemed denied ab initlo. This permit may be revoked al any time prior to final approval by the Air Pollution Control Division (APCD) on grounds set forth in the Colorado AlrQuallty Control Act and regulations of the AirQuality Control Commission (AQCC), Including failure to meat any express term or condition of the permit. If the Division denies a permit, because conditions imposed upon a permit are contested by the applicant, or the Division revokes a permit, the applicantor owner or operator of a source may request a hearing before the AQCC for review of the Division's action. 4. This permit and any required attachments must be retained and made available for inspection upon request atthelocation set forth herein. With respect to a portable source which is moved to a new location, a copy of the Relocation Notice (required by law to be submitted to the APCD whenevera portable source is relocated) should be attached to this permit. The permit may be reissued to a new owner by the APCD as provided in AQCC Regulation No. 3, Part B, Section (II.B. upon a request for transfer of ownership and the submittal of a revised APEN and the required fee. 5. Issuance (initial approval) of an emission permit does not provide "final" authority for this activity or operation of this source. Final approval of the permit must be secured from the APCD In writing in accordance with the provisions of 25-7- 114.5(12)(a) C.R.S. and AQCC Regulation No. 3, Part B, Section IV.H. Final approval cannot be granted until the operation or activity commences and has been verified by the APCD as conforming In all respects with the conditions of the permit. If the APCD so determines, it will provide written documentation of such final approval, which does constitute "final" authority to operate. Compliance with the permit conditions must be demonstrated within 180 days after commencement of operation. 6. THIS PERMIT AUTOMATICALLYEXPIRES IF you (1) do not commence construction or operation vAthIn 18 months after either the date of issuance of this permit or the date on which such construction or activitywas scheduled to commence as set forth In the permit, whichever is later; (2) discontinue construction for a period of 18 months or more; or (3) do not complete constructionwithin a reasonable time of the estimated completion date. Extensions of the expiration date may be granted by the APCD upon a showing of good cause by the permittee prior to the expiration date. 7. YOU MUST notify the ARCD at least thirty days (fifteen days for portable sources) priorto commencement of the permitted operation or activity. Failure to do so is a violation of Section 25.7-114.5(12Na), C.R.S. and AQCC Regulation No. 3, Part B. Section IV.H.1, and can result in the revocation of the permit. You must demonstrate compliance with the permit conditions within 180 days after commencement of operation as stated In condition 5. 8. Section 25.7-114.7(2)(a), C.R.S. requires that allsources required to file an Air Pollution Emission Notice (APEN) must pay an annual fee to cover the costs of Inspections and administration. If a source or activity Is to be discontinued, the owner must notify the Division in writing requesting a cancellation of the permit, Upon notification, annual fee billing will terminate. 9. Violation of the terms of a permit or of the provisions of the Colorado Air Pollution Prevention and Control Act or the regulations of the AQCC may result in administrative, civil or criminal enforcement actions under Sections 25-7-115 (enforcement), -121 (injunctions), -122 (civil penalties), -122,1 (criminal penalties), C.R.S. 777/2099/001 ver. 2/00 CDPHE Construction Air Permit No. 03GA0621 STATE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT AIR POLLUTION CONTROL DIVISION TELEPHONE: (303) 692-3150 CONSTRUCTION PERMIT PERMIT NO: 03GA0621 DATE ISSUED: MAY 4, 2006 ISSUED TO: PETROLEUM DEVELOPMENT CORPORATION THE SOURCE TO WHICH THIS PERMIT APPLIES IS DESCRIBED AND LOCATED AS FOLLOWS: Natural gas gathering facility, known as the Garden Gulch Compressor Station, located in the NE % of the SW % of Section 8, T6S R96W, in Garfield County, Colorado. THE SPECIFIC EQUIPMENT OR ACTIVITY SUBJECT TO THIS PERMIT INCLUDES THE FOLLOWING: One (1) US Intertek, model 18MM-1000-3PH/CAP 18MM, serial number 32458, glycol dehydrator, natural gas fired rebbiler, equipped with a gas glycol pump and associated still -vent. This emission unit is equipped with a thermal oxidizer as a VOC control system. This emission unit removes water from pipeline gas to 5.0 pounds of water per million sof. THIS PERMIT IS GRANTED SUBJECT TO ALL RULES AND REGULATIONS OF THE COLORADO AIR QUALITY CONTROL COMMISSION AND THE COLORADO AIR POLLUTION PREVENTION AND CONTROL ACT C.R.S. (25-7-101 et seq), TO THOSE GENERAL TERMS AND CONDITIONS INCLUDED IN THIS DOCUMENT AND THE FOLLOWING SPECIFIC TERMS AND CONDITIONS: 1. Visible emissions shall not exceed twenty percent (20%) opacity during normal operation of the source. During periods of startup, process modification, or adjustment of control equipment visible emissions shall not exceed 30% opacity for more than six minutes in any sixty consecutive minutes. Opacity shall be measured by using EPA Method 9. (Reference: Regulation 1, Section II.A.1. & 4.) 2. The permit number shall be marked on the subject equipment for ease of identification. (Reference: Reg. 3, Part 5, III,E.) (State only enforceable) 3. Emissions of air pollutants shall not exceed the following limitations (as calculated in the Division's preliminary analysis: (Reference: Regulation 3, Part B, II.A.4). Nitrogen Oxides' 0.3 tons per year Volatile Organic Compounds: 1.5 tons per year Carbon Monoxide: 0.6 tons per year The processing of natural gas through a glycol dehydrator reboiler indicated above will produce Hazardous Air Pollutant (HAP) emissionsThis information is listed to inform the operator of the Division's analysis of the specific compounds. These emissions are summarized in the notes. Compliance with the synthetic minor status of this facility shall be determined by recording the facility's annual permitted criteria pollutant emissions, (including all HAPs above the de-minimis reporting level) from each emission unit, on a rolling (12) month total. By the end of each month a new twelve- month total Is calculated based on the previous twelve months' data. The permit holder shall calculate monthly emissions and keep a compliance record on site, or at a local field office with site FINAL APPROVAL AIRS 045/0637/001 ver. 2/00 PETROLEUM DEVELOPMENT CORPORATION Permit No. 03GA0621 Colorado Department of Public Health and Environment FINAL APPROVAL Air Pollution Control Division Page 2 responsibility, for Division review. This rolling twelve-month total shall apply to all emission units, requiring an APEN, at this facility. 4. This source shall be limited to a maximum processing and/or consumption rate as listed below and all other activities, operational rates and numbers of equipment as stated in the application. Monthly records of the actual consumption rate shall be maintained by the applicant and made available to the Division for Inspection upon request. (Reference: Regulation 3, Part B, II.A.4) Natural gas throughput shall not exceed 6,570.0 million scf per year. Compliance with the natural gas throughput limit shall be determined on a roling twelve (12) month total. 5. This source shall be limited to a maximum lean glycol recirculation pump rate as listed below and all other activities, operational rates and numbers of equipment as stated In the application. Annual records of the actual pump rate shall be maintained by the applicant and made available to the Division for Inspection upon request. (Reference: Regulation 3, Part 8, II.A.4) The maximum pumping rate of lean glycol shall not exceed 1.31 gallons per minute (a pump stroke correlation can be used). 6. Annual records of the actual consumption rate (make-up quantity) of TriEthylene Glycol shall be maintained by the applicant and made available to the Division for inspection upon request. (Reference: Regulation 3, Part 8, II.A.4) 7. The thermal oxidizer shall be operated at all times when gases, vapors and fumes are vented through the closed -vent system, except when maintenance or repair on a unit can not be completed without a shutdown of the thermal oxidizer. The control equipment shall be equipped with a temperature -monitoring device equipped with a continuous recorder. The monitoring device shall have a minimum accuracy of * 2 percent of the temperature being monitored in °C, or 2.5°C, whichever value is greater. The temperature sensor shall be Installed at a location in the combustion chamber downstream of the combustion zone. The temperature sensor shall be equipped with an alarm that indicates no ignition of the pilot flame. Records of the times and duration of all pilot flame outages shall be kept. Records of the times and duration of all periods during which the temperature is less than the minimum temperature necessary for compliance shall be kept and made available for Division inspection upon request. The minimum temperature identified for compliance with the permit limits and the operating parameters of the control equipment shall be identified prior to final approval of this permit. The Identified operating parameters will replace the control efficiency requirement on the final permit. (Reference: Regulation No. 3, Part B, III.E.) 8. The applicant shall follow the most current operating and maintenance plan and record keeping format approved by the Division in order to demonstrate compliance on an ongoing basis with the requirements of this permit. (Reference: Regulation No. 3, Part 8, Section III.G.7.) 9 This emission unit is classified as a synthetic minor to 40 CFR 63, Subpart HH (Natural Emission Standards for Hazardous Air Pollutants From Oil and Natural Gas Production Facilities) requirements, and shall be limited to less than 10 tpy of each individual hazardous air pollutant and less than 25 tons per year of total hazardous air pollutants from glycol dehydrator process vents and storage vessels with potential for flash emissions. 10. A revised Air Pollutant Emission Notice (APEN) shall be filed: (Reference: Reg.3, Part A,II.C) a. Annually whenever a significant Increase in emissions occurs as follows: For any criteria pollutant: For sources emitting less than 100 tons per year, a change In actual emissions of five (5) tons per year or more, above the level reported on the last APEN; or AIRS 045/0637/001 ver. 2/00 PETROLEUM DEVELOPMENT CORPORATION Permit No. 03GA0621 Colorado Department of Public Health and Environment FINAL APPROVAL Air Pollution Control Division Page 3 For any non -criteria reportable pollutant: If there is an emissions Increase by 50% or five (5) tons per year, whichever Is less, above the level reported on the last APEN submitted to the Division. b. Whenever there is a change in the owner or operator of any facility, process, or activity; or c. Whenever new control equipment is installed, or whenever a different type of control equipment replaces an existing type of control equipment; or d. Whenever a permit limitation must be modified; or e. No later than 30 days before the existing APEN expires. 11. This source Is subject to the odor requirements of Regulation No. 2. (State only enforceable) By: 'V'r Dennis M. Myers, Permit Engineer By: Permit History: Initial Approval issued on January 13, 2004. R K Hancock III, P.E. Unit Leader Notes to Permit Holder: 1) The production or raw material processing limits and emission limits contained in this permit are based on the production/processing rates requested in the permit application. These limits may be revised upon request of the permittee providing there is no exceedance of any specific emission control regulation or any ambient air quality standard. A revised air pollution emission notice (APEN) and application form must be submitted with a request for a permit revision. 2) This source is subject to the Common Provisions Regulation Part II, Subpart E, Upset Conditions and Breakdowns. The permittee shall notify the Division of any upset condition which causes a violation of any emission limit or limits stated in this permit as soon as possible, but no later than two (2) hours after the start of the next working day, followed by written notice to the Division explaining the cause of the occurrence and that proper action has been or is being taken to correct the conditions causing said violation and to prevent such excess emission in the future. 3) The following emissions of non -criteria reportable air pollutants are estimated based upon the throughput as Indicated in this permit. This information is listed to inform the operator of the Division's analysis of the specific compounds. This information is listed on the Division's emission inventory system. C.A.S. # SUBSTANCE EMISSIONS iLB/YR) 71-43-2 Benzene 203.5 1330-20-7 Xylene (isomers and mixture) 1,135.2 4) The emission levels contained in this permit are based on information provided in the application and the GRI GlyCalc model. 5) In accordance with C.R.S. 25-7-114.1, the Air Pollutant Emission Notice (APEN) associated with this permit is valid for a term of five (5) years. The first expiration date for the five (5) year term for this APEN expires on July 21, 2008. A revised APEN shall be submitted no later than 30 days before the five (5) year term expires. 6) This emission unit Is classified as a: Synthetic minor source for MACT HH applicability AIRS 045/0637/001 ver. 2/00 PETROLEUM DEVELOPMENT CORPORATION Permit No. 03GA0621 Colorado Department of Public Health and Environment FINAL APPROVAL Air Pollution Control Division Page 4 GENERAL TERMS AND CONDITIONS: (IMPORTANT! READ ITEMS 5.6.7 AND 8) 1. This permit Is Issued in reliance upon the accuracy and completeness of information supplied by the applicant and is conditioned upon conduct of the activity, or construction, installation and operation of the source, in accordance with this Information and with representations made by the applicant or applicants agents. It Is valid only for the equipment and operations or activity specifically identified on the permit. 2. Unless specifically stated otherwise, the general and specific conditions contained in this permit have been determined by the APCD to be necessary to assure compliance with the provisions of Section 25-7- 114.5(7)(a), C.R.S. 3. Each and every condition of this permit Is a material part hereof and is not severable. Any challenge to or appeal of, a condition hereof shall constitute a rejection of the entire permit and upon such occurrence, this permit shall be deemed denied ab inifio. This permit may be revoked at any time prior to final approval by the Air Pollution Control Division (APCD) on grounds set forth In the Colorado Air Quality Control Act and regulations of the Air Quality Control Commission (AQCC), Including failure to meet any express term or condition of the permit. If the Division denies a permit, conditions imposed upon a permit are contested by the applicant, or the Division revokes a permit, the applicant or owner or operator of a source may request a hearing before the AQCC for review of the Division's action. 4. This permit and any required attachments must be retained and made available for inspection upon request at the location set forth herein. With respect to a portable source that is Moved to a new location, a copy of the Relocation Notice (required by law to be submitted to the APCD whenevera portable source Is relocated) should be attached to this permit. The permit may be reissued to a new owner by the APCD as provided in AQCC Regulation No. 3, Part B, Section 11.8. upon a request for transfer of ownership and the submittal of a revised APEN and the required fee. 5. Issuance (Initial approval) of an emission permit does not provide "final" authority for this activity or operation of this source. Final approval of the permit must be secured from the APCD In writing in accordance with the provisions of 25.7-114.5(12)(a) C.R.S. and AQCC Regulation No. 3, PartB, Section 111.0. Final approval cannot be granted until the operation or activity commences and has been verified by the APCD as conforming in all respects with the conditions of the permit. If the APCD so determines, It will provide written documentation of such final approval, which does constitute "final" authority to operate. Compliance with the permit conditions mustbe demonstrated within 180 clays after commencement of operation. 6. THIS PERMIT AUTOMATICALLY EXPIRES IF you (1) do not commence construction or operation within 18 months after either the date of issuance of this permit or the date on which such construction or activity was scheduled to commence as set forth in the permit, whichever is later; (2) discontinue construction for a period of 18 months or more; or (3) do not complete construction within a reasonable tima of the estimated completion date. Extensions of the expiration date may be granted by the APCD upon a showing of good cause by the permittee prior to the expiration date. 7. YOU MUST notify the APCD at least thirty days (fifteen days for portable sources) prior to commencement of the permitted operation or activity. Failure to do so is a violation of Section 25-7- 114.5(12)(a), C.R.S. and AQCC Regulation No. 3, Part B, Section 111.0.1., and can result in the revocation of the permit. You must demonstrate compliance with the permit conditions within 180 days after commencement of operation as stated in condition 5. 8. Section 25-7-114.7(2)(a), C.R.S. requires that all sources required to file an Air Pollution Emission Notice (APEN) must pay an annual fee to cover the costs of Inspections and administration. If a source or activity Is to be discontinued, the owner must notify the Division in writing requesting a cancellation of the permit. Upon notification, annual fee billing will terminate. 9. Violation of the terms of a permit or of the provisions of the Colorado Air Pollution Prevention and control Act or the regulations of the AQCC may result in administrative, civil or criminal enforcement actions under Sections 25-7-115 (enforcement), -121 (injunctions), -122 (civil penalties), -122.1 (criminal penalties), C.R.S. AIRS 045/0837/001 ver. 2/00 u� Petroleum Development Corporation Mr. Christopher Laplante, El Environmental Engineer Colorado Dept. of Public Health and Environment Air Pollution Control Division 4300 Cherry Creek Drive South APCD-SS-B 1-1400 Denver, CO 80246-1530 RE: 1775 Sherman St, Ste. 3000 Denver, CO 80203 Phone: (970) 506.9272 Fax: (970) 506-9276 January 11, 2007 Construction Permit Application for (3) Waukesha 7044 Engine Driven Compressor Packages, (1) 70 MMSCFD TEG Dehydration Unit, and Emission Increases for Other Existing Sources Associated with this Modification Garden Gulch Compressor Station NESW Section 8, T6S, R96W of Garfield County, Colorado Petroleum Development Corporation --- PLEASE EXPIDITE --- Dear Mr. LaPlante; Petroleum Development Corporation (PDC) is submitting the attached permit application package associated with our Garden Gulch Compressor Station located in the NESW quarter of Section 8, T6S, R96W of Garfield County, Colorado. This application is associated with PDC's plan to increase the design capability of this station from the existing 18 MMSCFD capacity to a proposed 70 MMSCFD throughput capacity. This proposed permitting action will account for the construction of four new emission sources (three compressor packages, one 70 MMSCFD dehydration unit) and the increase in emissions to three existing sources to APEN Required/Permit Required levels (300 bbl storage tanks, fugitives, and a plant vent). Due to critical timing associated with the construction of this project, PDC is requesting that the Division expedite the processing of this application as much as possible. As per a telephone call between you and our consultant, Lesair Environmental, a pre - permitting meeting has been set-up for the week of January 15, 2007. PDC would like to help in the expediting process as much as possible, thus it is thought a meeting to help establish communication on this process should be beneficial to both PDC and the Division. A review of the proposed permitting action will demonstrate that this action is: • A synthetic Minor to PSD The NSCR and AFR on the Waukesha L7044GSI engine driven compressor packages control the NOx and CO emissions to 27 TPY NOx and 51 TPY CO. - The JATCO BTEX Eliminator System controls the 70 MMSCFD dehydration unit to 15 TPY VOC and 10.5 TPY aggregated HAP. Petroleum Development Corporation Garden Gulch Compressor Station January 11, 2007 ▪ A synthetic Minor to Title V The aggregated NOx, CO, VOC and HAP emissions are brought below Title V applicability levels with the use of NSCR on the engines, a condenser/combustor control on the dehydration unit and an enclosed combustor on the condensate storage tanks. ■ A synthetic Minor to MACT Subpart HH - The 70 MMSCFD dehydration unit is controlled using a JATCO BTEX Eliminator system. The flash tank vapors are routed to the station fuel system and are thus part of the process. The still column vapors are sent first to a condenser and the non -condensable vapors are routed to the firebox for combustion. This results in FIAP emissions at less than 25 TPY aggregated and 10 TPY for the individual HAP components. • A synthetic Minor to MACT Subpart ZZZZ - The aggregated controlled HAP for the facility is less than 25 TPY and the aggregated controlled individual HAP components are less than 10 TPY. The most significant engine HAP being formaldehyde, is 9.39 TPY after control. This proposed permitting action will require public comment, as it is a proposed synthetic minor facility for PSD, Title V, MACT HH and MACT ZZZZ. In addition, air dispersion modeling should not be required as this permitting action is below the Colorado guidance levels of 40 tons for NOx and 100 tons for other criteria pollutants. Attached are the applicable APENs, supporting documentation, and a check for $839.72 to cover the appropriate APEN filing fees. If you should have any questions please contact me as soon as possible at (303) 585-1051, you may also contact Ty Smith (Lesair Environmental) at (303) 904-2525. Sincerely; Joe H. Kelloff Director of Western Production Petroleum Development Corporation Attachments; Cc; PDC File, Lesair Environmental CDPHE Construction Air Permit Application New Equipment at Garden Gulch Compressor Site Petroleum Development Corporation Garden Gulch Compressor Station Proposed 2007 Modification Air Permit Application Garfield County, Colorado January 2007 Prepared for: Petroleum Development Corporation 1775 Sherman Avenue, Suite 3000 Denver, CO 80202 Prepared by: LESAIR Environmental, Inc. 10394 W. Chatfield Ave. Littleton, CO 80127 Colorado Air Permit Application Petroleum Development Corporation Garden Gulch Compressor Station Proposed 2007 Modification Table of Contents 1. Application, APEN, APEN Addendum Forms & Start-up Notice 2. Emissions Summary Sheet 3. Location Map, Process Flow Diagram 4. Supporting Calculations Engine Manufacturer's Data GRI Glycal Simulation Colorado Air Permit Application Petroleum Development Corporation Garden Gulch Compressor Station Proposed 2007 Modification Application APPLICATION FOR CONSTRUCTION PERMIT OR PERMIT MODIFICATION SEE INSTRUCTIONS ON REVERSE SIDE. Mail completed application, APENs, and filing fee to: Colorado Department of Public Health and Environment Air Pollution Control Division 4300 Cherry Creek Drive South, APCD-SS-RI Denver, Colorado 80246-1530 Telephone: (303) 692-3150 1. Permit to be issued to: Petroleum Development Corporation 2. Mailing Address: 1775 Sherman Avenue, Suite 3000 Denver, CO 80202 3. Agent for Service: N/A 4. General Nature of Business: Exploration and Production of Natural Gas 5. Air Pollution Source Description: (3) Waukesha 7044 Engine Driven Compressors 8 70 MMSCFD Dehydration (See attached table) SCC Code: Is this a Portable Unit? No Days per year source will operate: 365 6. Source Location Address (Include Location Map): Garden Gulch Compressor Station NESW Section 8, T6S, R96W, Garfield County, Colorado If portable, is this the ❑ Initial Location, or change, etc.): • horn -base 7. STATUS ® New Air Pollution Source ■ Modification to Pennitted Source (Control Equipment added, process ❑ Transfer of Ownership - Transferred from: ❑ Existing Source- not permitted (Include Date of Source Start-up):• ❑ Requesting to Cunt a source's Potential to Emit for criteria or Hazardous and existing sources) ❑ Requesting to limit a source's Potential to Emit for Hazardous Air sources only) Air Pollutants using Regulation No. 3 (for new Pollutants only using Regulation No. 8 (for existing End: May 1, 2007 ■ Other: Projected Dates for Construction to: Begin: March 1, 2007 9. Projected Source Startup Date: May 1, 2007 10. Enclose check to cover APEN FILING FEES One APEN should be filed for each emission point/permit ( / 1 1 1 Z Ne .7 NOTE: Additional processing fees must also be paid prior to permit issuance. /�>4 tit (L-rJi lid Signature 6J.t gaily Authorized Person (NOT Vendor or Equipment Manufacturer) Date Signed Joe H. Kelloff; Director— Western Production Phone: (970) 506-9272 Type or Print name and official title of person signing above 11. Check appropriate box if you want: Fax: (970) 506-9274 For Division Use Only: Pennit Number: • Copy of preliminary analysis conducted by Division ■ To review a draft of the pennit prior to issuance AIRS ID: Note: checking either item eould result in increased fees and/or processing lane. see Reverse. a k20 e:tin Rev C+;rporauiBii t°errait )difkaiiou i::i2aiet Ciuidt CQr.'Gi j51'os3ur Statimt APPLICATION FOR CONSTRUCTION PERMIT OR PERMIT MODIFICATION cont. Additional APEN applications: Air Pollution Source Description Fugitives (2) 300 bbl Storage Tanks Plant vent W v L .2 7 a 0 � L U 0 M 00 I N al a� N v w pg 0 v F O 7 0 2 a _0 Fs . U Q n c w gw O N o , 0 Syy v W c W • o z z 9 M 0 nested Action (Check Applicable Request Boxes) Request for New Permit or Newly Reported Emission Source Request Portable Source Permit 0. 0. 0 0 2 s a Y 0 c o U .` c 0 4 DO e E L14 O. M P 0 0 e u 0 C A C W z S o bO 0 g a a 00100 z Q U A 8 0 ❑ ❑ 0 O .0 2 Y 8 .0 V. O n 0. z u Section 01 —Administrative Information Petroleum Development Corporation 0 a vi aO go w 8 u oL ll C 1] O 0 a ZIP Code: 80202 1775 Sherman Ave., Suite 3000 Mailing Address (970) 506-9272 s (970) 506-9274 Denver, CO Joe H. Keitoff jkellott(a3petd.com Person To Conta E-mail Address: Section 03 — General Information For New or Reconstructed Sources: lea 4.1 e �a L L E o P' U e N t ° A s a 3O * Q N P.w o m 1 os>. w O. .W O N In W., O J.4, y=0 111 g 1"0 S 00 L i NO L O O ,L L Yi. O ''S N 0 q0 .0 Do 3068. N ry y v L .N 0 e L o ig o 6 5 e n ti gte• e a. 05. e a ' e c g e7 .2 y W d L ; E O a a u E.03 Oc O e 9 Ur c u0v Ed 0 wL b N 0 o E E a.c v rO 0V 0 g .- L o coo N L N c 0 0 0 0 Z z z 0 r ® ❑ a r - e .0 .0 e . o 0 0 0y [� 'L u 'e e . °Hta cx 2 v u ro N E W E v �_� O ¢ N V U0 Co 0 3 0 C 0 a C 0 m t e s i V x ❑®3 U P. 4 tn 0 a zy O U 0 - Fa, 00 LL N C s Manufacturer's Maximum Rated Horsepower ® Sea Level: C N U 4 ❑❑R❑ 0 0. Electrical Generator Maximum Site 8 4' 0 0. 0 0 v 0 0 S 0 V this engine is used for emergency back—up power? What is the maximum number of ho Form Revision Date: August 2006 o •Y 7 C N 1 Y 0 ti O U Y N 0 L ig 0 4- a aW tqj V U z z 0 y7F W a 1-7,4123 cn u C O 4 v,' 0 a w Q o M o p v 0 Tut s 00 Hv 0 0 '15.83 s 8 0 N 0 J II U 'S 1 8 g Q ❑ A ® Y 0 vC L 0 v a y N 2 c 0 0 X Direction of stack outlet (check one): Section 07 — Emission Control Information E Section 06 — Fuel Consum 0 1 w O z n factor documentation to this u 0. 9 °a O '^, e 1' 0 0 ti 0 M 1 u. uu yOp y. T m Natural Gas —15MSCF/hr N N N Seasonal % Fuel Use Section 08 - Emissions Inventory Information C O a5 O 0 8 0 O 1a 0 M 3 E W C e AK 1'?; Ci .o ° = N 'e owp g ; a O in 0.0108 g/Hp-hr r4 ..o Cr E O O ..c O W O MAY"^ O 00 NS1 p8 d O Eb Actual Calendar Year Emissions .g 0 --a O � u M trl en N vi 1dz O o 0Z in el en 200 a0 ;Q Uncontrolled (Tonsfyear) 206 224 •0 Uncontrolled Emission Factor (Include Units) 12.70 gm/hp- hr 0 VII 107-02-8 71-43-2 o O XJ zJ 0 O 7 Acetaldehyde C 6 Formaldehyde 5 N Pa l Criteria Pollutant Emissions Inventory Requested Permitted Emissions II 0 - 0 O m 17.0 o in .4 S. Q 8 W 8 1 d w Q U 3 w 0 v 5 U rc r themnfrrillgd',`. (Tons/Year)'.. N N vi Actual Calendar Year Emissions. g8 „ 16.22 ; Uncontrolled (Tonsfyear) 206 224 •0 Uncontrolled Emission Factor (Include Units) 12.70 gm/hp- hr 13.80 gm/hp- hr 0.36 gm/hp-hr A o - XJ zJ O VOC w N w Form Revision Date: August 2006 1 hereby certify that all information contained herein and information submitted with this application is true and correct. Criteria Pollutan Manufacturer's Data & AP -42 4) H Name of Legally Authorized Person (Please print) n w O oio n 4> co 0. Form Revision Date d n source previously reported.) Section 02 — Requested Action (Check Applicable Request Boxes) Section 01 — Administrative Information 0 d .>0. a o a a0 O 0 0 0. 4 S y 0 d z s .. = 0 0 a >gg. i a0. o a oo, o 3 w . 0 u U p a W s s a a u w o Wy u A -.0 g ghg •SAI v U o "� U .0 e 0 . o a C pp a a c u ❑❑ 0 0 a >. 003 c't m .u00 �j' rp 00 V.. . C z E ° •y .) 6H o a i w.0. = wz . e a ••0• m E O .aa W 0..0oa a h = o. v ¢ , t a` 4 w a Z o by a a0• o 0 e0o y D O 0 3 ay rQ S' 0a s3 G •u EL. a� V di i U U y C4 O c4 0 0 a 0 0 a z a a❑❑ a❑❑ '0 I; wi i n V. U' vi Petroleum Development Corporation Garden Gulch Compressor Station NESW Section 8, T6S, R96W ZIP Code: 80202 Mailing Address: 1775 Sherman Ave., Suite 3000 (970) 506-9272 (970) 506-9274 a g z z 0 Person To Contact: E-mail Address: Section 03 — General Information 01 / 2007 0 For New or Reconstructed Sources: 0 v L 0 3 0 N p .0 a w w` V Ir N a �b3 p L L a N SI a, V W N OO O a0 G D. w 0 V°, O V O C E o E O as• u o a co•w E Y C 9 o E E a0 0-= o 0 0... a .0 a o o.= V w 0 a 0 '2 2 'p411 V .a+ u q L c = = = E 2(3'; .5^ms o endc o 02 0 •C E u m T .r".. i J0^ 'p ll cn W O N -a N O O Co F F O co N 0 00 0 0 0 N O J Direction of stack outlet (check one): Section 07 — Emission Control Information tion Informati 06 — Fuel Co to Ja AT w O NTA z 0 Annual Fuel Consumption . Fuel Heating Value. (gallons/yr or MMSCFIyr) (Indicate units: Actual Reported for. Requested Permit ARtu(lb Btu/gal, Calendar Year Limit . "Btu/SCF) 0 M . Seasonal % Fuel Use: —25 Dec -Feb —25 Mar -May —25 Jun -Aug —25 Sep -Nov I 0 M 2 Fuel Use Rate Type of Fuel 100% Load Bumed (SCF/hr, gal/hr) —15MSCF/hr Natural Gas Section 08 — Emissions Inventory Information documentati ta 0 ions and em 'e 8 i 0 co V 41 8 C 0 t C o -�..:� 4' :5 h... o •0 ° 9 o W p - ugCc�e i QO9 L o�� c c t I a .71: ' A a Controlled' Minds/Year . 352 M .a N N yy W •- Uiiconiaolled* ound's7Year) 352 332 N Qs A V op N N e� Uncontrolled (Tons/Year) 206 • :CAS n ':. 75-07-0 107-02-8 7143-2 o V O '^.-1 a m o b r L on Z m n 0 T °s' Q 5 d v at a a w 1,3 Butadiene Criteria Pollutant Emissions Inventory -Rs: equested Permitted EmisSions'I g. 0 oo. c.' 0 v g aln W .rd 0 rz01 U -45 w Q U 3 w o q 0 '3 v 0c I.'. 8.,❑❑0 206 224 h Actual Calendar Year Emissions` O b '" N N e� Uncontrolled (Tons/Year) 206 N N `° H Uncontrolled Emission Factor (include links) 12.70 gm/hp- hr b r L on Z m n 036 gm/hp-hr x O 7 CO vOC to w 0 N W a Form Revision Date: August2006 0 c C W = 1:. ct= .02 0 U ro C d H 0 .71 4) Po0 o t u7 h i 0 y C C g 0 U g 044 W G G O . 8 al u O. b 0404 0 Q 4 040 ca4 1,4A N IA O f"C °z 0 N N G u) 0 'N E w 5 40 1 o a it z O u V Section 09—A b A 0 0 0 G A O 2 m 4� Q Nc Ill G y d a re h J C r d N a o • Y T•G GCO 0 S 14 G & - Source of Reference for Emission Factors Listed in Section 08: co L a u w Manufacturer's Data & AP -42 (If manufacturer's emissions factors used provide documentation.) Name of Legally Authorized Person (Please print) Form Revision Date: August 2006 4) C 2 et W 0 o G h?. �.. A 0 E O, U 2 To 0. To — 2 CI) y IN 0 1 Q .5 In Ga '0 0Ca w a ���777 g C y a a u U 0O 6 v°, .5 2 o A U 2 ,loo 6 G 8 w w w O o in 0g g. ai T z OJ N .y. W MY o.3 Z g co 00 0y 0 U .. e z c ' z a zie. ti oN a a 1 nested Action (Check Applicable Request Boxes) Section 02 — Re Section 01 —Administrative Information 3 O EL o. o. o a R o g O s a P. s E 7.1 I. .0 T o °' o V � n .- e >4 3S 0 isg you O r W P A a w O w YO w � o O<uOF B V ❑ ❑ w o e ',1 0a r.0 '1. ° 0 1 A 9 t4 a Cu & a .Q O Ij AA r/)° t 'a o a Q `� `e' v ° .E gw ) .7 g N ri} .0 W Z 2 « 'B °9 0-y .5 o s a A 't & 4 o0re 01 0 e 0 e 0 c) 0 a4 x 0. ar rza❑❑a❑❑ SIC Code: 1311 ❑®❑ Garden Gulch Compressor Station 3 0 ZIP Code: 80202 1775 Sherman Ave., Suite 3000 P n co 2 N < E S E < D O OIr 3 S C - 7) 0 0 0 O (970) 506-9272 N N to 0 N Section 03 — General Information 4 W 2 0. 0 O L 9 '0 n;y $ L e Y e n o 0. W O 0 0 . u 'O e U .3 0 L0 d W v en o w a C, � u I. Din t:-; u 0 In, It N m rn 0 .0 0 00 b 1° b M O!! N C O (n o o• E O V Men .01 OOjs qq of E 00i O P k7 `Q py^� ,p alga —.0 {WPy� N, `� to p w0 8 o a. w m ° A z v ;o a 0 a >+ N R 0 a U. v)j E a ed N Q Wbuy '�y 'So =e oo:2 e o w e� , '5 a q' 2 0 a .0 ,0 9 Z 0 G E s ...4 30 .L..ts 1,1, u 0 5 8 N s o¢y w 0 . •. Q9G Y 1.7 W p G di 'm a'� gp G O y o u U '0 G u. 3 -6.. u e.1 p w 8 y y a .� o gog e l a n 0 LO ". FEEJ;`� `�"Vd:fAuO.QvEi Imo. << 0 0 0 Z z z ❑❑ r r ® ® ❑ u"3 0 N N 434 ine information Section 04 — En 0 J 0 0 L" Manufacturer: o H Manufacturer's Maximum Rated Horsepower © Sea Level: 0 oi W 00 E 1- E a E k ❑ ❑ ®❑ I c L j 70 ,0. v .E 0 ✓) T 2 g N F' q y j i 8. 0 00 U v 11 00 S .a ;T j C N C 'J 3 0 J6 9 �_ J G L S 8 'C C 0 .J CO < J Foran Revision Date: August 2006 Gzi 0 0 C N E ) O L 00 0 U L 0 O. 04 U F 0zz 0 H F L- a A a4 Ircd "6. N e 0 V 0 00 a: N N ti 0 n C II 3 O d, H E 6 0 O V1 Direction of stack outlet (check one): Exhaust Opening Shape & Size (check one): Section 07 — Emission Control Information Section 06 — Fuel C to 0 U O. IC* rn °z rn o RI 8 $' CJ CO L*1 o u z Z" 121 ti o �a o I LL O� o t, a 0 Annual Fuel Consumption (gallons/yr or MMSCF/yr)_• • i Requested Permit Limit —131.40 1 To th Actual Reported for' Calendar Year • N n 1 N 1 .0 w v 0 Type of Fuel Burned Natural Gas N Z U LL '. '< N a>en d ^ N 0 0 E y 'I D o ``c u. qLL 174 —ISMSCF/hr Section 08— Emissions Inventory. Information lations and emission factor documentation to this emission cal m 0 0 U y C 0 u n V O 9 00 ics.2 $ Ov �r 5 o . > fis 0 y O C 0 Eto 3 o '] C 8 � p 0 0 T. .22 C O y 0 r u E w .Z J Q Non -Criteria . Reportable. Pollutant Emissions. Inventory v g q Y UW '0 O Y a LL O� o t, Tr rya L! O W ei MSL+ O W L O W Actual -Calendar Emissions u 0 0 U 0 352 M 200 § p Z thTr aco • 8 ?a 352 en n 200 co a ,0 a a a a 4 . in U O r- h C o N M h O O h To` o Jj:( O > ■ Formaldehyde 9og 0101. Criteria Pollutant Emissions Inventory .. O SaSY� f 44N r• o e 0: e r e The Calendar Year for which Actual Fuel Consumption and Emission Data Applies is; 'Q� ❑70 g g 224 vi Actual Calendar Year-Emissions:.I i i.4 00 vi co a Uncontrolled (Tons/Year) 206 224 vi Uncontrolled Emission Factor (Include Units) 12.70 gm/hp- hr 13.80 gm/hp- hr 0.36 gm/hp-hr 9 i z z O J O > ■ cn0 N 00 w • bl W O w E O U E O 1:1 r o V z It o1-1 o f b W 5 s AIR POLLUT licant Certificati Section 09—A Source of Reference for Emission Factors Listed in Section 08: Manufacturer's Data Manufacturer's Data & AP -42 N 0 0 P4 n i�- J hJ c (If manufacturer's emissions factors used, provide Joe H. Kellett Name of Legally Authorized Person (Please print) 0 0 u m fL Form Revision Date: August 2006 H 0 ment Corooratio Petroleum Develo 0 CO tE co 0 0 0 ) ] )` 0 §/ ILI rZ Q \± \ VI (- 2 /R§ en z2 2$ ztu :1-0 en 0 0 < GO Z in \c E. §§\0) P }( \\j �)\ /(§ ADDITIONAL INFORMATION OR REMARKS: Vapors sent to a Jatco BTEX Eliminator (Identify below which stack if plant has two or more., refer to attached sketch of plant layout) Plant ID No. for Stack cg! az 0 ® 5 t \ ) / / ) CHECK ALL BOXES THAT APPLY El New or previously unreported source" o Requesting modification of existing permit RI ❑ Change in emissions, throughputs or equipment I ❑ Transfer of ownership (List previous owner in REMARKS section of box A.) I El Previous APEN is expiring I El Request for Emission Reduction Credit HI El (Specify) Complete all applicable portions of APEN H Complete "Requested Level" values for permit limits I Complete all information above box A, and those remaining portions which reflect changes DATA YEAR (See Instructions on Reverse): Date source began or will begin operation: 05/01/2007 Colorado Dept. of Public Health & Environment APEN A_4_of. 7_ Air Pollution Control Division 4300 Cherry Creek Drive South, APCD-SS-Bl For Information, Call _ Denver, Colorado 80246-1530 (303) 692-3150 1i Seasonal Fuel Use (% of Annual Use) 2} ) iZ k } 25,550 MMSCF if }f \! Finished Product Description Natural Gas , ) 4 .. ] 0cc 'Typed Name and Title: / ( s/Joe H. Kelloff, Director - Western Production )� ! ; § )\ 2 00 D CHECK HERE IF YOU WISH THE DIVISION TO CALCULATE YOUR EMISSIONS. SEE "EMISSION ESTIMATES" INSTRUCTIONS ON BACK. Design Process Rate (Specify Units/hour) 70MMSCFIDay 'Fuel Heating Value: (BTU/lb, BTU/gal, or BTU/SCF) SI19.96 FILING FEE IS REQUIRED FOR EACH NOTICE FILED. Send completed forms with fees to: 4 11) asi w k a Signature of Person Legally Authorizedto Supply Data: . ACTUAL EMISSIONS (DATA YEAR) 5!! ! ~ \ \� \Q - a VIN 7 How Rate Velocity N/A ACFM N/A ft/min / !,04 IM ESTATED EMISSIONS (TONS/YEAR) AT THROUGHPUTS REQUESTED ABOVE ],c,0 ( 0 \ 285 0 ) !!_ _ 5{ ,40-. !§, §6 & { 25,550 MMSCF j )\G THIS NOTICE IS VALID FOR FIVE YEARS. A revised notice shall be filed prior to this expiration date, whenever a permit limitation must be modified, whenever control equipment is changed, and annually whenever a significant emission change occurs. For specific details see Regulation 3, Part A, 11.CA. Kind of Fuel Burned '5'd c4 Description Nat. Gas / ° in - Normal ration of This Source Days/Week Weeks/Year 1 7 52 Design Input Rate (106 BTU/HR) ){ oill ON PLEASE USE APCD NON -CRITERIA REPORTABLE AIR POLLUTANT ADDENDUM FORM TO REPORT SUCH POLLUTANTS OR POLLUTANTS NOT LISTED ABOVE. P ), /� .§ )_$ D. PROCESS INFORMATION Description of Processing Unit 70 MMSCFD Dehydration Make/Model: Hanover w/ (2) Kimray 45015 2 e \ C. FUEL INFORMATION Description of Combustion Unit \ 2 y } E. POLLUTION CONTROL EQUIPMENT Type of Control Equipment \ ) 0 Hours24 ay A. GENERAL INFORMATION B. STACK OR VENT INFORMATIO EZ ®2 NONE NONE I Z 2]2 § to 0 Z te 0 �� /.. \\i#/e (970) 506-9272 ..C o =0 o a, Garden Gulch Com Joe H. Kelloff 8 E -Mail Address: Data Year Actual Emissions (Ibslyr) 5081 M co N N 0) m 3617 e 2 5 a a 8 0 10,000 4,000 Emission Factor Source GRI Glycatc GRI Glycalc u 0 T 0 R' 0 GRI Glycalc Emission Factor (include units) 0. L a co O 0- ,C .o O O L .c d r '- 0- L a M O Control Equipment! Efficiency 0 01 e 0) 0 01 0 0) C eEig a < 0 0 0 Chemical Name Benzene d ea) cx o Z c FO - Xylene Chemical Abstract Service Number N M V n 1110-54-3 1108-88-3 11330-20-7 0 w y 0 Y X 0) 0 0 1- 0 0 CO 0 m U H Z O/■ ) !! CA §, Tyg -r0 §k OUNTY Garfield ¥ } \ CO CO0 j \ 0 cv • (§ )] a. Director, Western Prod p • ( 2 ( \ a.0 ) ■ ! 6 § 0 / / gl 1 B. STACK OR VENT INFORMATION (Identify below which stack if plant has two or more; refer to attached sketch of plant layout) Plant ID No. for Stack ®& ` ® Finished Product -Annual Output 7 ! 0 V/N CHECK ALL BOXES THAT APPLY - ® New or previously unreported source ❑ Requesting modification of existing permit tiI ❑ Change in emissions, throughputs or equipment I o Transfer of ownership (List previous owner in REMARKS section of box A.) I p Previous APEN is expiring I 0 Request for Emission Reduction Credit BI i0 (Specify) • Complete all applicable portions of APEN n Complete "Requested Level" values for permit limits I Complete all information above box A, and those remaining portions which reflect changes DATA YEAR (See Instructions on Reverse): Date source began or will begin operation: 05/01/2007 Colorado Dept. of Public Health & Environment APEN f.._5 of 7 Air Pollution Control Division 4300 Cherry Creek Drive South, APCD-SS-B1 For Information, Call Denver, Colorado 80246.1530 (303) 692-3150 _ Seasonal Fuel Use (% of Annual Use) 2! i \ 18,250 bbl .4 . }ƒ }! ){ n _ Condensate (Signature of Person Legally Authorized to Supply Data: DATE: II i Authorize"! t-Fci--c--411f� _ r %r � � Z.4.L, — Typed Name and Title: f / ( r t H. Kelloff, Director - Western Production !; = - j ESTIMATION METHOD . al ° ❑ CHECK HERE IF YOU WISH THE DIVISION TO CALCULATE YOUR EMISSIONS. SEE "EMISSION ESTIMATES" INSTRUCTIONS ON BACK Design Process Rate (Specify Units/Hour) z Fuel Heating Value: (BTU/lb, BTU/gal, or BTU/SCP) 5119.96 FILING FEE IS REQUIRED FOR EACIi NOTICE FILED. Send completed forms with fees to: Process Seasonal Thro M • ut '/o of Annual 8 VI ° + ACTUAL EMISSIONS (DATA YEAR) 4.56 1 r ) !/� y ! I8R -a , , 10 ) ! `) ? -a L � j ESTIMATED EMISSIONS (TONS/YEAR) AT THROUGHPUTS REQUES1aD ABOVE L UNCONTROLLE \ Requested level First year level L5 ) t t \ N/A )� THIS NOTICE IS VALID FOR FIVE YEARS. A revised notice shall be filed prior to this expiration date, whenever a permit limitation must be modified, whenever control equipment is changed, and annually whenever a significant emission change occurs. For specific details see Regulation 3, Part A, 11.C.1. \ ` ]) !� .!\ {§ 4. , kk § CONTROLLED Raw Materials Used § \ ! N/A ; � Normal Operation of This Source Hours/Day ay Days/Week Weeks/Yea7 52 r i/ Collection Efficiency ( PLEASE USE APCD NON -CRITERIA REPORTABLE AIR POLLUTANT ADDENDUM FORM TO REPORT SUCH POLLUTANTS OR POLLUTANTS NOT LISTED ABOVE. D. PROCESS INFORMATION Description of Processing Unit Two (2) 300 bbl Storage Tanks . \ C FUEL. INFORMATION Description of Combustion Unit \ 2 IA POLLUTION CONTROL EQUIPMENT Type of Control Equipment Primary Secondary O )t A. GENERAL INFORMATION ! 000 NONE 2Z Combustion 1 k 0 »00 \/i{\a 2 0 z w 0 Q w 1— 0 z z 0 co a W Z- a I'5 J g Jo CC Q w — J O a reCe U z Permit Number u W O O O 7) 506-9274 W a N d LE m (970) 506-9272 V °' W d 10 Petroleum Development Co Garden Gulch Compressor Joe H. Kelloff Person to Contact: E 8 Y E -Mail Address: Data Year Actual II Emissions (lbs/yr) O n O N u)N N 2 El'O S oi i O 0 3000 Emission Factor Source LL. W 0 0 LL. LL! 0 0 Emission Factor L (include units) a =:-.3 a 0 0 0 0.140 Ib/bbl m w� 0 Vow m m � o o ao earn.s Q U co E Chemical Name Benzene W K d• a e . Chemical Abstract Service Number 71-43-2 1110-54-3 C 0 F - 04 0 co 0 0 0 R § 6 % $ ) 0 ■ ) ) 2 ADDITIONAL INFORMATION OR REMARKS: 1 B. STACK OR VENT INFORMATION (Identify below which stack if plant has two or more' refer to attached sketch of slant 1. out II Plant ID No. for Stack 0` L 11 Finished Product -Annual Output \ VI CHECK ALL BOXES THAT APPLY Ncw or previously unreported source* ❑ Requesting modification of existing permit HI ❑ Change in emissions, throughputs or equipment I ['Transfer of ownership (List previous owner in REMARKS section of box A.) I ❑ Previous APEN is expiriog I [1 Request for Emission Reduction Credit HI 0 (Specify) * Complete all applicable portions of APEN H Complete "Requested Level" values for permit limits I Complete all information above box A, and those remaining portions which reflect changes DATA YEAR (See Instructions on Reverse) - Date source began or will begin operation: 05/01/2007 Colorado Dept. of Public Health & Environment APEN g6_of 7J� Air Pollution Control Division 4300 Cherry Creek Drive South, APCD-SS-B1 For Information, Call Denver, Colorado 80246-1530 (303) 692-3150 Seasonal Fuel Use (% of Annual Use) \/ / \ .. if P 0" Finished Product Description & j y r rfyped Name and Title: 4,4 Joe H. Kelloff, Director- Westem Production .5 ) z Q2 4 ) « ❑ CHECK HERE IF YOU WISH THE DIVISION TO CALCULATE YOUR EMISSIONS SEE "EMISSION ESTIMATES" INSTRUCTIONS ON BACK Design Process Rate (Specify Uoits/Hour) Fuel Heating Value: (BTU/lb, BTU/gal, or BTU/SCF) $119.96 FILING FEE IS REQUIRED FOR EACH NOTICE FILED. Send completed forms with fees to: I Process Seasonal Throughput (% of Annual) > Diameter Temperature Flow Rate Velocity Moisture ft "F ACFM ft/min Signature of Person Legally Aphorized to Supply Data: / ✓/, H-411-<-4./tin /(/ §4 co -.-a, Annual Fuel Consumption y ]_ )$ ; 0 4 !® ESTIMATED EMISSIONS 1 (TONS/YEAR) AT THROUGHPUTS REQUESTED ABOVE LUNCONTROLL 000000 Requested level First year 1= ,! ! ] / `i 4� THIS NOTICE 15 VALID FOR FIVE YEARS. A revised notice shall be Bled prior to this expiation date, whenever a permit limitation must be modified, whenever control equipment is changed, and annually whenever a significant emission change occu rs. For specific details see Regulation 3, Part A, ' ILC.1. Kind of Fuel Bumed CONTROLLED f ) / I Normal Operation of This Source Hours/Day Days/Week Weeks/Year 24 7 52 8 2 /\\ PLEASE USE APCD NON -CRITERIA REPORTABLE AIR POLLUTANT ADDENDUM FORM TO REPORT SUCH POLLUTANTS OR POLLUTANTS NOT LISTED ABOVE. D. PROCESS INFORMATION• Description of Processing Unit f 5 _ 0 \ C. FUEL INFORMATION• Description of Combustion Unit _ 0 \ -ION CONTROL EQUIPMENT _ k / 1 A. GENERAL INFORMATION \ 0 , NONE 00 ZZ NONE 00 ZZ \), k/i{\a 2 0 z w 0 0 U 1= 0 z 0 2 w Zv • Q ctij Jo J ; 05 a w — J N� 0 a re LwL ce V Permit Number 0 e it z z w O 0 Zip Code 80202 Fax (970) 506-9274 03 0 (970) 506-9272 C 0 O a U 0 C H N E Petroleum Develo Garden Gulch Com Joe H. Kelloff E 1 fl 5._ OW Requested Emissions (lbs/yr) Emission Factor Source Emission Factor L (include units) c a Z 0 g 5 a6. =u ..-em O U nd other Non-Cnrena Rem C ro a c 1 5 va V u a I N ei a 5 0 1 Chemical Abstract Service Number N C 0 Z E. C a L 5 Name of a Responsible Official (please print) N 0 0 N 0 U N PERMIT No.: N m O m Production • c a, 02 F E (S4 wai E U 1 --co a U E.. o $ on 0 10 /11 u '531 c Z ..Sc 0 a Y o HOw a a 0 oil zod(n C/] o w U Q cn U G1 .c °° z e C 0 o 0 o z W O. µ E--4w� t II P. r- zw C7 z O Z w x E v o w 0 a FF . E a a 0 y H- F^� ; W O Oy Q 4 C" f m DJ 0 z ce C O f O z ce a u / O en iz <Di_<1N0� n a u O D N- c ez Hj O LL 2 ❑ 1 ADDITIONAL INFORMATION OR REMARKS: 11 B. STACK OR VENT INFORMATION (Identify below which stack if plant has two or more; refer to attached sketch of plant layout) Plant ID No. for Stack ,.7. g 6 CHECK ALL BOXES THAT APPLY ® New or previously unreported source' ❑ Requesting modification of existing permit RI CI Change in emissions, throughputs or equipment T ❑ Transfer of ownership (List previous owner in REMARKS section or box A.) r 0 Previous APEN is expiring I ❑ Request for Emission Reduction Credit RI ❑ (Specify) ' Complete all applicable portions of APEN li Complete "Requested Level" values for permit limits I Complete all infomlation above box A. and those remaining portions which reflect changes DATA YEAR (See Instructions on Reverse): Date source began or will begin operation 05/01/2007 Colorado Dept of Public Health & Environment APEN ti 7 of 7 Air Pollution Control Division -- —"' 4300 Cherry Creek Drive South, APCD-SS-9I For Information, Ca II Denver, Colorado 80246-1530 (303) 692-3150 Seasonal Fuel Use (% of Annual Use) oz h Z O c Q e 0 2 a a Requested level 5.0 TPY �¢ T 5il 13 W V V p LL Finished Product Description Natural Gas S ra L tiC Q P I`'fyped Name and Title' 6 `,/ V ' oe H. Kelloff, Director - Western Production 43 .43 a3 a N p Eng. Est. 1 ❑ CHECK HERE IF YOU WISH THE DIVISION TO CALCULATE YOUR EMISSION& SEE "EMISSION ESTIMATES" INSTRUCTIONS ON BACK. Design Process Rate (Specify Units/Hour) Fuel Heating Value: (BTU/lb, BTU/gal, or BTU/SCF) 5119.96 FILING FEE IS REQUIRED FOR EACH NOTICE FILED. Send completed forms with fees to: 1 Process Seasonal Throughput (% of Annual) cN oN 1 \, n vl 0 j,U s'\. Q ^^ u in co— Dec -Feb Mar -May Jun -Aug 25 25 25 o a 0 Data year level Raw Materials -Annual Consumption Data year level a z . cc Ugzz < w H V - I. w g > Q ESTIMATED EMISSIONS (TONS/YEAR) AT THROUGHPUTS REQUESTED ABOVE I UNCONTROLL 1 0 0 0 0 0 4 0 0 4 P Requested level First year Requested level a zz THIS NOTICE 15 VALID FOR FIVE YEARS. A revised notice shall be filed prior to this expiration date, whenever a permit limitation must be modified, whenever control equipment is changed, and annually whenever a significant emission change occurs. For specific details set Regulation 3, Part A, ' II.C-1. Diameter I Temperature I Flow Rate ft I °F I ACFM Kind of Fuel Burned 1 CONTROLLED Raw Materials Used o a Q Natural Gas 1 Normal Operation of This Source �VNI Design Input Rate (106 BTU/HR) 0 o Overall Collection Efficiency PLEASE USE APCD NON -CRITERIA REPORTABLE AIR POLLUTANT ADDENDUM FORM TO REPORT SUCH POLLUTANTS OR POLLUTANTS NOT LISTED ABOVE. D. PROCESS INFORMATION --- Description of Processing Unit N ... Plant Vent o .ro• _"E _ zz U `^° r_ C. FUEL INFORMATION Description of Combustion Unit IllvnIKCCMnnel' O _ A TION CONTROL EQUIPMENT (Type of Control Equipment Z ea o �j ti a oN X A. GENERAL INFORMATION -‘i E: aI NUN t NONE wLuww zZZZ 0000 zzzz c N Z E. POLLU Pal luta = i s OOOO , z> 0 i tS L 0 z W 0 0 Q U 0 z z 0 L.co e 2 z' IF 3 ny J8 Jo Cc Q 03 W J H 0 0. NW Lf. cc W 1— 0 Z Permit Number O r- 0 0 CO (970) 506-9274 t 0 W t o 0 (970) 506-9272 00k U e Petroleum Develo Gulch Com d d = te E c 0 -, E 0 0 V 0) y 0 - 0 T U 0 - a c G c o 2 od 0 0. a W Data Year Abs Emissions 80 Requested Emissions Obs/yr) 0 0 Emission Factor Source Engineering Est. w oa 0.009 ib/hr E 19W sW 0 3 0 ana a 1 z 3 u Benzene II Chemical Abstract Service Number N M Y r. 0 ti Name of a Responsible Official (please print) Colorado Department of Public Health & Environment Air Pollution Control Division NOTICE OF START-UP THIRTY -DAY PRIOR NOTICE REQUIRED OF ALL NEW SOURCES Even with a permit you cannot legally continence operation or conduct an activity fora new source until 30 days after you have notified the Division of the start-up date (Section 25-7-114(4)(j) of the Colorado Air Pollution Prevention and Control Act). In most cases, a permit is applied for and approved before the anticipated commencement date, so the 30 day prior notice causes no problems. Note: this form is not a Relocation Notice for portable sources. If, however you plan to continence your operation or activity as soon as you receive the permit, you should estimate the date you expect to commence (assuming the permit is approved) and fill out and return this form at least thirty days prior to that date. This will avoid a 30 -day delay between receipt of the permit and commencement. Notification can be accomplished by completing the form below and returning it to: Colorado Department of Public Health & Environment APCD-SS-B1 4300 Cherry Creek Drive South Denver, CO 80246-1530 Please contact the Division immediately (303) 692-3150 if you have any questions or problems concerning this requirement. PERMIT NUMBER: AIRS (AFS) NUMBER: ADDRESS OR LOCATION: "TBD" "TBD" Garden Gulch Compressor Station NESW Sec, 8, T6S, R96W Garfield County PROJECT DESCRIPTION: (3) Waukesha L7044GSI Engine Driven Compressor Packages, (1) 70 MMSCFD Glycol Dehydration Unit controlled with a JATCO BTEX Eliminator System, Fugitives, Storage Tanks and Plant Vent. Operation of the emission source(s) to which the above permit number has been assigned is expected to begin on and will be in full operation by June 1, 2007 May 1, 2007 Petroleum Development Corporation Joe H. Kelloff COMPANY APPLICANT'S NAME (PLEASE PRINT) APPLICANP'SVSIGNATURE Joe H. Kelloff PERSON TO CONTACT FOR VERIFICATION OF STARTUP DATE (970) 506-9272 Director - Western Production TELEPHONE NUMBER OF CONTACT PERSON POSITION OR TITLE �,^u 7 1 f ( DAT? Proposed Permitting Action Emissions Summary E • Z o m m Z z a E co O N 1 Uu-u. 0 0 co O M N 6 0 M co 10 O 6 N C) 0 O 8 O o 6 O O 0 O O m O O O 6 0) co N H O O �(1 0 YI 8 N 0 M 0 O O d 8 M M O n cO a N O 0 N O co a b a 0 a 6 O 0 0 0 0 0 O 6 0 O 6 0 O 0 0 O 6 0 0 O 0 0 0 O O 0 0 0 0 0 0 0 O 0 0 0 0 O 6 6 0 0 0 0 O 8 0 0 0 8 6 0 0 0 0 0 0 0 6 0 0 0 O 0 0 0 co M O 0 co c0 O CD CO C) O 0 O O N 0 M 6 O 0 O 6 0 0 O O 8 6 O O O 6 O 6 10 r- 8 0i O 0 0 lV O 0 N O 0 O 6 6 O O O O O O 0 0 6 0 6 O 6 O 0 O 6 N b 0 NNO 0 Oa V C E O N 0 D 0 d D C co m 3 m t $ V CO Dc o D O oil '00 c 0 m « W a a 0 c E 3 p o m D G > C E 0 0 a.. 0. L u 0 0 0 0 < w 0 0 0 c m -o co 0 0 0 E 0 m m N V C 0 0 0 w c O p 'rye X 0 m 'N X K C4 IS/ 0 0 > cal— o v 9 N '- � � UU 0 c 7.0 d Q Q r a n o 0 c c c Q a a;. m m m no E o et L AU m N N N C 1.0 M N A w0 C P U U U c 0 o 0 0 co UJ co D C -o o zzz� 6Pa o m m m m 5 n N 01 r L L .0 0 X §'3'; c 0 �_ O >> a D ❑ 0 O 0 3 o 5 0 9 0 9' E 0- o0 0 O O 5 r 00 ON wa E Em N N N O Q ul aaa=macW c[ceaera ,.- g 0 0 0 E a E N N NN. . N X cel x 0 a Z Coe 6 w U' 0 Ly 3coy U 0 L 0 3s 0 J .0 N co 3 rr- C D 0 0 >. 0 ❑ N 2 2 O 0 0 x .0 0 0 0 2 2 13 0 co J 0 12 N 3 LL 0 a r E 0. m r ❑ m r ❑ m 03 n W E w 03 r ❑ m r 0 z 0 O w U N 9 w U M U 0 0 O 0 r O 0 0 O C0 LL O 5 N N N ea 03 w d D d Q L.c L m a m 0 D 0 CO 03 (0 K..0 mC e0E,, S 2„0- 0 0 0'� U m u N y C aN. a c N> N N `0 ,�O_ m O$ c 0 (000 U D.f U a aVFay'� Vp�py'' 0L aL 3 of O)O) O O D N 0 C N N N D %% J J J W E E Y N 0 0 m m m r m 0 0 L L L m m m 0 0. D0 M 0 0 0 0 DIM N N 0 0 0 0 0 al IL W 7/-Y 000❑=r w O z 0 0 0 OJ LL 5 Existing Facility Emissions Summary 01 CO N O 3 O 0) O 113 O 0 O 0 O CO O O O O O O 0 O O 0 6 0 0 O O O Ito 0 0 0) N N rr N O O O O 0 a O O 0 O O 0 a O 8 CO O N r N 2a 3 0 a= 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 8 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 6 8 0 0 >- 0 0 co O 0 8 0 O 6 O 0 O 0 O 0 0 6 O 0 O 0 O 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 0 0 >- 0 0 a co N CD O) c00 0 03 0 O 6 O 6 O a O O O N hl d 6 o 6 0 0 0 6 0 0 0 Y) c6 CO M O 0 lV M 0 O 6 M 0 co 6 O 0 O 6 O 0 0 6 co O 0 O 6 O 0 0 8 O O O N N N 0 fi0. 0 0 W J 0 N 0. ❑ A Q W J o co N a ❑ 0 v T d n .0 m 2 5 N 0 N LL s C co H 0) .0 d C 1 0 1- a O N 0 0. O 0 0. 0 N CO E 0 w E W E w E w E W E 0 Z 0 O w O. N 9 w a O D ❑ O 12- (.5 LL 0 r O 9 5 O T m 50' co m 0) c orf .03E d c a 8w a 0 < N .c a 3 0 0 T. m N m c n o D -N 00 .0 N 0 Y N CD H O d C C_ m Q D W 2 t - a m a w D T m o N g,. 0 eVC o 0 N 31 Y m o m O n 0 N C O O m N h e To oCO C o H F c p W W w r01 O jz n 0 0 N O ui 0 Total Proposed Facility Emissions Summary 0 0 0 U r 0 0 E 0. 0 0I 0 0 0 toC2 0. a 0 I1 0 C 0 y 1- O N N 0 a E 0 0 0 v 0 c 0 0 } ar 2 000.00MMWOOrNTr0 0000000, C) «) MO 6000000 -000v -MM rO N .R 1.0li 0 8222 000 MO U.UU 0.02 0.01 O o0 mm Nr M 00 N 0'4 N! 5.00 5.00 OI u.ur 4.56 1.39 6 o'4 o 0.00 9.40 N vc Ib/hr 1.14 R flN r V M N O N 0 M 0 r O ONO N M O 0 0 0 N O o N N t O r M f y r r 88882 y a o 666 d RN 0 0.U5 0.00 0.00 0.00 O o 0.00 0.00 0.00! i 1.851 u ` m s o az, r o 0 0 o 000 0 0.01 0.00 0.00 606006 000000 0 0 0 0 0 0 0.42 r 0 r r 0 0 00 0 0.00 0.00 0.00 i 0.00 0 0 6666 M 0 00'0 1 00'0 14 00.0 O SC lb/hr 0.02 0.02 0.02 0 0 0 0 0.00 00000 00000 O o 0 0 0 0.07 1- 0 0 0 006 000 a! r 1 0.001 0 0 0 i 0 0 o 0 0 0 0 0 L 0.001 000010 0000001 660466 ‚0101000)000 0000001-000 6 7 M 6 0 7 0 0 6 06 1 0.00 00N0) 0Q0) O r o NN 00 W l c NO.x 000 00000=0000000,- 0)0)0)6 '0 0 0000 o 00 0000 0 00 60 0o N r 00 0 N 2.05 2.05 N000 o 660 0.001 00'0r 000C 0 o OWN 11.70 Equipment Waukesha L7044 GSI Waukesha L7044 GSI Waukesha L7044 GSI �70 MMSCFD Dehydration Unit 1.5 MMBtu/hr Reboiler Heater (2) 300 bbl Storage Tanks 'Trunk Loadout Fugitives Plant Vent (1) 200 bbi Sump Tank Methanol Storage Tank Ajax DPC-2804LE Ajax DPC-2803LE 5 o F- _ ,�10 0) F- a. TBD TBD I TBD EmoCCE x I- x w W TBD TBD Exempt Exempt 03P00276 03P00211 0 0 = W O 0 0 W W O O 0 DI-YOt 0 0 0 0 S 1- -I 0 0 0 0 0 0 YY UI W LL> H F 0. a N 0 O 2 Overall Change in Facility Emissions as a Result of this Permitting Action Total HAPs O M 2' 0) W n m u) O 1 N lV co (V N N u co a r 1j N O 0) u 0. 6 M N W O O O 00 a N O 0 0 0 0 0 W o co 0 0 o. O 0 0 G a r O O O O O r O O 0 0 O) M r- 00 W N N 00 to 0 N L .0 W co 10 CO h 0 2 W N N M N M r N O 2 W N (0 N n 0 a co 0 co 0 Colorado Air Permit Application Petroleum Development Corporation Garden Gulch Compressor Station Proposed 2007 Modification Location Map And Process Flow Diagram 39.550000 N €notstiir ioa.i sopa- w 108;11333° W .WGS84 108,11667° •YY 1-08,15000,1.W TN' IMN N° I:08:13333° W W GS84:. IftEl ;116670 W o Pain .. ictirar =zs="immiacr.—°39 ibmt PtItO2NatSflopaphicHoWi(www.Iopfl:C0m) en A Figure 1 Topographic Map Petroleum Development Corporation Garden Gulch Compressor Station Garfield County, CO NE SW Section 8. T6S. R96W Drown by: M. Hazleton Date: January 2007 ANNONMENTAE, INC. • Colorado Air Permit Application Petroleum Development Corporation Garden Gulch Compressor Station Proposed 2007 Modification Supporting Calculations 0 230 LL 8 8 0 m NOU iE LLm y° a4 a Z s Y Z s a _3V3 n 00) LLf 0 0 u- 0 0 LL O A E « C0 0. a O " tll 0 m 0 8 2 V J f N J x er. thus nameplate rating of 1,680 Hp at 0 Y A 0 0 U 0 0 0 nd —1.0 gmlHp-hr for CO. ine Emission Factors Controlled En a2 1Eao ci 2 ci yY 0 0 W o v 8 W C Y . 7993 < m N o, O. s 0 V vF a 9 w co 0 0 n 0 Z E co 0 0 0 E of P 0 0 d S 8 0 aE co d 8 0 0 N 0 8 of a 0 8 O Q N O N d N 1 • E g m n o m 02 e Q N a N N d C o• cob Ee o NL FifI V a v d °0 o 2N a e 2 2- (A 8 2 8 w O U N 0 9 U Controlled Engine Emissions 0 0 co 0 0 > to e 0 8 8 E t a 8 d 8 00 0 0 0 8 0 0 8 d 0 8 0 8 t 0 u O 0. Of N n 0 m 0 vi i m m O U 0 0 0 tu 0 tu 0 0 N 0 m c _u0 0 < to m 8 0 x 8 d 8 O CD 0 a m 8 0 d rni 3 0 m 0 N n 8 d Oe Ua 8 a. a 8 a N d a 0 0 U 9 U 8 d 0 0 d 0 8 0 co 2 0 O d O 0 0 CLC Ha V m mcc 0 0 0 0 N 0 U ^o U uested Permit Limits 0) e 8 8 n 8 i3 4z N a O g 3 5 iv h 8 0 8 w m > C • O,In O a E t 0 0 0 0 0 of U t m 0 U m 3 20 U s U 0 U O r d L d 9 Gas Fueled Engine Uncontrolled Emission Calculation for Natura le using AP -42 factors from Section 1. to A> LL O O O O. 0 2co m a 0 co 0 to a Q IV 2 m LL z a 0 z LL 0 Z 0 Manufacturer N ? .E S ON. W ern Q 0 J m .0 Y 0 b 0 O .0 N O b 8 J c 0 .0 ca N 2 O b O 0 C p 0 m a o E E rn m o 0 0 C v a O Z b e =` 3 LL m E = 0) N W N r v a O v {p to m IL O O CO c N 8 H =a E U N0) a E- n(a tiro O c 0 c O v tl N Q N E P 0 5 K i0 q0 N tl z Z C 0 co mts 0 0 m a O � 0 p O O JIT - 0 N 0 H =ate m m c 0 O N 0N. E F N 4, O Z 0 w 0 w O co 00 Uncontrolled En d L y. 'v 5 E m O 00w N C) W N O w 0 tl GI h m a 0 O 0 W 0 0 a b 0. Q C t d d O2 Q a O N O W 0 9 0 0 c t a O. v rn 0 m O 0 toO O 9 Lo9 0 2 O = E co an 0 en a N O f m N a 0 N ^ w 2 a2 LL 0 c 2 q i LL 0 O (O C no m mL7, o v D v 5 N N v a a O = a5 0 mwo >92 D LL I t d N d U c N 0 7 a O d c 10 t v irstl E o O 0 v d N • 0 N D N t D 0 N m N E E M E v ;11£ p N O v� N R D Q v tl E tl N_ O N 1!c O c Z C O p O y u w E 0 E tl C 0 0 8 a. 2 2 N N 0 Z 0 d OE m M 0 b m 0 a ff 6E m a 0 0 8 0 0. a O O N E m O O 0 O 4 co m E 0 n co ri 1 t Ox Z 0) O 04 N 0 0-4 N ryC Y co c 0 N d co 2 3 0 W w 0 w 0 co w 0 ine Emissions Uncontrolled E n N N O N r N h O N n N N 0 01 O. i a 3 m N m N 4+3 M 01 0) 0) M N t O a O 0 0 a O 0. 0 N d 0 0 0 0 0 0 0 t 0 0 i 0) N N04 m N N N co 0i N 00 O co N 0 v O N a v 0 c z N w 0 ca w 0 to 0 h 0 E 0. 0. 2 r 0 0 r 0 C q 02 0 n 4 .. CD M b 0- M (0 M a O -J 8 O a O m O 0) it; O 0 CO M O 0 0 O LT.; O 0 0 O to C) a O CO 0 O to ri co m O a t 00 OZ U 0 2 J oo m co m m m e m m to to O CD O O O O O O O c 0 e m C9 m M m m 2` 0 0 O O O w U 0 w 0 m w U 0 O „z N 0 N w 0 co w U O O r O 0 O 0. 0 0 4) E 0. 0 N O 0 0 O u. *co c 0 0 O 2 UI O co 0. E 0 0 N P. al Q) E m Z E u c m (13 CL Z E. 13- 0 N (p U LL. LL AP- 42 Emission Factor Analysis - 4 -Stroke Rich Burn Engines Reference Information v o' om i a v N LL N • 2 LL 2 0 M ii 0 0 LL c` 0 _ 5 3 2 N N S S 0o • 0 N 0 c o 2 N > 111 o O b r a no E b (m 2 U c • till 2 ' O m • m a Er3 S to uV. o r m •65 T = w • m o i o E C a O ▪ m T Or LLLLN n a m ) N 1 ? a Z o w 5 0. To in E 5 N uv. g o (O C N o if) 0 m a N Q LL z • N 0.. .)L • Ol co to0 a. To gg Q Od O 0 Manufacture t m O 0. Z 0 m d .0 o ta E.. t oC w c Y 0 a Q Requested HAP I (Ib/yr) o o o co Yo) 0 a0 O 0 10 o 0 10000.01 O o 0 Reportable HAP (Ibryr) CO 0 NCC) 0 �m M 0) (0 rn CO 0 0 0 ES 0 ES ES ES 0I 01 01 01 W Ot Ot 01 OP OP Ot EF Emissions Colorado Colo (grn/hp•hr) (tons/yr) Reporting Bin Reports Z Z� Z• ZZZ. ZZ Q Q Q Q Q Q 6 Q Q Q 0 Q 6 0 Q m 0 0< 0 00 O O O O O 0.0418 0.0008 0.1760 0.1659 0.0997 0.0011 0.0008 0lr O O r O co co (0 00 I. d 0.19301 0.002611 0.0061 1 O O 0.0008 9000"0 Z9£0.0 N O o 0 0th g 0 WW W O0i�og.-OOO ANNQr NNN in 0 0 q o q W i CO b W W W rto LO iO o q W W 000 Nu1 o W M N q o W W 0 N TO b W O)m Nr N V q o W W W (0. 0-. r(ON $0 W 'I 9 W V (ONO q o W W r� NNIS W N AP-42EF1 --- Emissions (Ib/MMBtu) (Ibs/yr) N 01000) l'M r 4O(0 M 0 r N- O 0 Mr DI CO. N r IN. r r IN M N TONN. (00 10C) ON N r 00 t r 5.58E-041 70.4 7.18E-06 0.9 N m r M 00 F 0 cli gogogo0090909999°9 WWWWWWWWWWWWWWWWWWWWW co M 4) 00 N r M h O) M co N IN 0r 0 r N Di r f- O) IN N, r r I-- r 0 r V N N m V)0rIN r O N r t` I? 0) r V, r- 0) r U 79345 79005 106990 542756 75070 107028 171432 56235 108907 67663 1100414 1n6934 o o N(ON _p J) O N N LO O) 100425 108883 75014 N. M r t $ p d 1,12,2 - Tetrachloroethane 1 1 9 - Trirhlnrnnrhane c c O. 0 N N 0 9 L 0 9 c[ (f1 O a O 0 N ca r rQQtt Carbon Tetrachloride Chlorobenzene Chlnrnfnrm N '0 E 0° c ._ N O N c W W �V S. N- 9 T E W O `o 0 C al a) c N L 'G O. r22Z v_ O a) 0 L S33 d0) r>Xr -..(1)B x O.m 0 m d co r- 0 0 LL0 0 c al _ L> O C N O) N d cCY c Om _ .c .0 t o� 0 N T O � 0 Z �2 Y O O NE 0 tM W m x � Q o `o w a o C • O Y N Q E o E a) 5 F 9 a n d c - ma W a v ` a) N a1.:11; `o ro N (/) c y 71 - E •-i .to a 1 3, I U a N j c € 11 0 do c'N of Q H f E 11. O T Co 5 W W F- u 0 Z 41 x(Ea Lesair Environmental, In STANDARD EQUIPMENT AIR CLEANER • Two, dry type with rain shield and service indicator. BARRING DEVICE • Manual. BATTERY BOX • Designed to accommodate two series 31 12 VOC batteries, Includes power disconnect switch and 20 loot (6.1 m) cable for connection to ESM Power Distribution Box, BEARINGS • Heavy duly, replaceable, precision type. BREATHER • Closed system. CONNECTING RODS • Drop forged steel, rifle drilled. CONTROL SYSTEM • Waukesha Engenius Engine System Manager (ESM) integrates spark liming control, speed governing, detonation protection, slad-slopconlrol, diagnostic tools, fault logging and engine safeties. Engine Control Unit (ECU) is central brain of the control system and main customer interface. Interface with ESM is through 25 foot (7.6 m) hamess to local panel, through MOOBUS RTU slave connection RS -485 multidrop hardware, and through the Electronic Service Program (ESP). Customer connections are only required to the local panel, fuel valve, and for 24V DC power supply. Compatible with Woodward bad sharing module. ESM meets Canadian Standards Association Class I, Division 2, Group D, hazardous location requirements. CRANKCASE - Integral crankcase and cylinder frame. Main bearing caps drilled and tapped for temperature sensors. Does not include sensors. CRANKSHAFT • Forged steel, seven main bearings, counterweighted and dynami- cally balanced. CYLINDERS • Removable wet type cylinder liners, chrome plated on outer diameter. CYLINDER HEADS • Twelve interchangeable, valve -in -head type. Four valves per cylinder, with water cooled exhaust valve seats. Roller valve lifters and hydraulic push rods. Flange mounted ignition coils. ELECTRONIC SERVICE PROGRAM (ESP) - Microsoft° Windows-based program provided on CD-ROM for programming and Interface to ESM. Includes [-Help for troubleshooting any ESM faults. Serial harness is provided for connection of a customer supplied laptop to the ECU RS -232 pod. ,_ ENGINE MONITORING DEVICES - Factory mounted and wired sensors for lube oil pressures_ and temperature, intake manifold temperature and pressure, and jacket water temperature, all accessible Through ESM. ESM continually monitors combustion performance through Individual knock sensors to provide detonation protection. Dual magnetic pickups are used for accurate engine speed monitoring. ESM provides advanced diagnostics of engine and all ESM sensors and logs any faults into non-volatile gash memory. ENGINE ROTATION • Counterclockwise when lacing flywheel. FLYWHEEL • Approx. WR' = 155000 Ib -in'; with ring gear (208 teeth), machined to accept two drive adapters: 31.88" (810 mm) pilot bore, 30.25" (768 mm) bolt circle, (12)0.75" 10 tapped holes; or 28.88" (734 mm) . pilot bore, 27.25" (692 mm) bolt circle, (12) 0.625"-11 lapped holes and (12) 0.75"-101apped holes. FLYWHEEL HOUSING • No. 00 SAE. FUEL SYSTEM • Two natural gas, 4" (102 mm) updraft carburetors and two Fisher Model 99, 2" (51 mm) gas regulators, mounted. 25 psi (172 kPa) fuel inlet pressure required. 10 foot (3 m) harness provided for ESM control of customer supplied fuel shutoff valve. GOVERNOR • Electric throttle actuator controlled by ESM with throttle position feedback. Governor tuning is performed using ESP. ESM includes option of a loadcoming feature to improve engine response to step loads. IGNITION SYSTEM • Ignition Power Module (IPM) controlled by ESM, with spark timing optimized for any speed - load condition. Dual voltage energy levels automatically controlled by ESM to maximize spark plug life. INTERCOOLER • Air -to -water. LEVELING BOLTS LIFTING EYES • Requires 9.5 Ion Working Load Limit (W.L.L.) anchor shackles. LUBRICATION • Full pressure, gear type pump. Full flow lube oil filter wilh replaceable depth -type elements and flexible connections, shipped loose. MICROSPIN° bypass filter, engine mounted. Lube oil strainer, mounted. Air/gas motor driven prelube pump, requires final piping. MANIFOLDS • Exhaust, (2) water cooled. OIL COOLER • Shell and lube type, with thermostatic temperature controller and pressure regulating valve. Factory mounted. OIL PAN - Base type. 90 gallon (340 L) capacity, including filter and cooler. PAINT • Oilfield orange primer. PISTONS • Aluminum with floating pin. Oil cooled. 8:1 compression ratio. SHIPPING SKID • Steel for domestic truck or rail. TURBOCHARGERS • (2) with waler-cooled bearing housing and adjustable wastegates. Single vertical exhaust outlet al rear. Flexible stainless steel exhaust connection with 8"(203 mm) pipe flange. VIBRATION DAMPER • Viscous type. WATER CIRCULATING SYSTEM Auxiliary Circuit - Belt driven water circulating pump for intercooler and lube oil cooler, Engine Jacket • Belt driven water circulating pump. Cluster type thermostatic temperature regulating valve, full flow bypass type with 165° - 170° F (74° - 77° C) start to open thermostats. Flange connections and mating flanges for (2) 4" (102 mm) inlets and (1) 5" (127 mm) outlet. Waukesha L7044GSI with ESM VHF'" Series Four 1120-1680 BHP Model L7044GSI with ESM Turbocharged and Intercooled, Twelve Cylinder, Four -Cycle Gas Engine SPECIFICATIONS Cylinders V12 Piston Displacement 7040 cu, in. (115 L) Bore & Stroke 9.375" x 8.5" (238x216 in) Compression Ratio' Jacket Water System Capacity ,107 gal ..::(405 L) ._ ...,,. Lube Oil Capacity 90 gal. (340 L) : Starting; System 125 -150 psi air/gas 24/32 V electric Dry Weight 22,7501b' r (10,320 kg) POWER RATINGS: L7044GSI VHP SERIES FOUR with ESM Brake Horsepower (kWb Output) I.C. Water Inlet Temp. Model °F (°C) (Tcra) C.R. 800 rpm 900 rpm 1000 rpm 1100 rpm 1200 rpm .... ....a-V.R1 ssr _..... (n: lenE\/MMf.NV 41' t4.V frj K.)/?:!.tn3R, L7044G81 . 130° (54°) 8:1 1120 (836) 1260 (940) 1400 (1044) 1540 (1149) 1680 (1253) Raring Standard: All models: Ratings are based on ISO 304611-1995 with mechanical efficiency of 90% and auxiliary water temperature Tcra (clause 10.1) as specified above lilted to t 10° F (t 5° C). Ratings are also valid for SAE J1349, BS5514, DIN6271 and AP17B-11C standard atmospheric conditions. 180 Standard Power/Continuous Power Rating: The highest load and speed which can be applied 24 hours a day, seven days a week, 365 days per year except for normal maintenance. It is permissible to operate the engine at up to 10% overload, or maximum load indicated by the intermittent rating, whichever is lover, for Iwo hours in each 24 hour period. All natural gas engine ratings are based on a fuel of 900 ehlk' (35.3 MJ/nm') SLHV value, with a 91 Waukesha Knock Index°. For conditions or fuels other than standard, the Waukesha Engine Sales Engineering Department. PERFORMANCE: L7044GSI VHP SERIES FOUR with ESM u,:, English 130° F I.C. Water Temperature ;I RPM Paver (Bhp) BSFC(Blulbhp•hr) NOx (grams/bhp-hr) - CO (grams/bhp-hr) 'NMHC (gramslbhp-hr) BSFC (Blubhp-hr) NOx(grams/bhp-hr) CO (grams/bhp-hr) NMHC (grams/bhp-hr) 1200.1000 1680 1400 7755 7580 12.7 12.3 13.8 12.0 036 0.36 7570 7430 21.5 21.4 1.6 1.6 030 030 17) n Metric 54° C I.C. Water Temperature ;RPM !^.Power (kWb) BSFC (kJ/kW-hr) NOx (g/nm3) CO (ginma) NMHC (g/nm') BSFC (gloms) NOx (glnnP) :.co (glnm3) NMHC (glnms) 1200 .1000 1253 1044 10973 10726 4.7 4.6 5.1 44 0.13 0.13 10712 10513 8.0 7.9 0.6 0.6 0.11 0.11 NOTES; I) Fuel consumption and exhaust emissions are based on ISO 3046/1.1995 standard reference conditions and commercial quality natural gas of 900 BluOP (35.38 MJ/m' 125, V(0; 101.325)]) saturated lower heat value, Waukesha Knock Index° of 91 and 93% methane content by volume. 180 304611-1995 standard reference conditions are 77°F (25°C) ambient temperature, 29.54 inches Hg (100 kPa) barometric pressure, 30% relative humidity (1kPa/0.3 inches Hg water vapor pressure). 2) S.I. exhaust emissions are corrected to 5% 0, (0°C and 101.325 kPa). 3) Data will vary due to variations in silo conditions. For conditions and/or fuels other than standard, consult the Waukesha Engine Sales Engineering Department. 1 93. 3" (238 mm) DRESSER Waukesha WAUKESHA ENGINE DRESSER, INC. 1000 West S4 Paul Avenue Waukesha, WI 53188.4999 Phone: (262) 547-3311 Fax: (262) 549'2795 waukeshaengme. dresser. corn Bulletin 7056 0102 83.33° '- (2117mm)' WAUKESHA ENGINE DRESSER INDUSTRIAL PRODUCTS, B.V. Farmsumerweg 43, Postbus 330 9900 AH Appngedam, The Netherlands Phone: (31) 596652222 Fax: (31) 596-628111 Consult your local Waukesha Distributor for system application assistance. The manufactirer reserves the right to change or modify without notice, the design or equipment specifications es herein set forth without incurring any obligation either with respect to equipment previously sold or in the process of construction except where otherwise specifically guaranteed by the manufacturer. Waukesha,VHP, Series Four,Nictospin, andWaukeshaKnock Indexarekadema, WregisteredtrademanksolWaukesha Engine, Dresser, Inc Company Name Field Name: Facility Name: Production Development Corporation Grand Valley Field Garden Gulch Compressor Station Date: 1/1012007 Emission Calculations Associated with the Dehydration of Natural Gas (Emission Estimates based on GRI GLYCaIc Version 4.0) UNCONTROLLED EMISSIONS At an estimated annual rate of : 70.0 MMSCFD Glycol Pump Type: Kimray 45015PV (NOTE: the skid is equipped with two (2) Kimray 21015PV pumps. worst case is using both) Pump Rate: 15.5 gpm (NOTE: This is the maximum pump rale for two (2) combined Kimray 45015PV pumps) Stripping Gas: 4.0 scf/min Stack ID No. Individual HAP Component Emissions . Benzene Toluene Ethyl -Benzene Xylene n -Hexane 2„4 - Trimeth !pentane (Lb/Hr) (TPY) (Lb/Hr) (TPY) (LbIHr) (TPY) (Lb)Hr) (TPY) (Lb/Hr) (TPY) (Lb/Hr) (TPY) DU -02 11.63 50.95 22.12 96.88 0.00 0.00 7.77 34.02 0.60 2.63 0.00 0.00 Stack ID Aggregated Emissions No. Total HAP VOC Xylene (LbMr) (TPY) (Lb/Hr) (TPY) DU -02 42.12 184.49 65.06 284.96 (TPY) (Lb/Hr) (TPY) (Lb/Hr) (TPY) CONTROLLED EMISSIONS (JATCO BTEX Eliminator System estimating 95% emission reduction) At an estimated annual rate of: 70.0 MMSCFD Glycol Pump Type: Klmray 45015PV (NOTE: the skid is equipped with two (2) Kimray 21015PV pumps, worst case is using both) Pump Rate: 15.5 gpm (NOTE: This is the maximum pump rate for two (2) combined Kimray45015PV pumps) Stripping Gas: 4.0 scf/min Control Efficiency: 95 % Condensor Temperature: 140 F Flash Tank Offgas: 100% routed into station fuel system Stack ID No. Individual HAP Component Emissions Benzene Toluene Ethyl -Benzene Xylene n -Hexane 2,2,4 - Trimeth (pentane (Lb/Hr) (TPY) (Lb/Hr) (TPY) (Lb/Hr) (TPY) (Lb/Hr) (TPY) (Lb/Hr) (TPY) (Lb/Hr) (TPY) DU -02 0.58 2.55 1.11 4.84 0.00 0.00 0.39 1.70 0.03 0.13 0.00 0.00 Stack ID Aggregated Emissions No. Total HAP VOC Benzene (lbs/yr) (LbWHr) (TPY) (Lb/Hr) (TPY) DU -02 2.11 9.22 3.25 14.25 6,000 10,000 4,000 500 500 Requested Permit Limits Stack ID No. VOC (Ib/hr) (TPY) HAP (lb/hr) I (TPY) Benzene (lbs/yr) Toluene (lbs/yr) Xylene (lbs/yr) n -Hexane (lbs/yr) e.Benzene (lbs/yr) 00 3.4 15.0 2.4 10.5 6,000 10,000 4,000 500 500 It Lesair Environmental, Inc. www.lesair.com Page: 1 GRI-GLYCalc VERSION 4.0 - AGGREGATE CALCULATIONS REPORT Case Name: 70 MMSCFD TEG Dehydration Unit - Case 5 File Name: L:\Datafile\GlyCalc 4.0 Data Files\PDC\Garden Gulch 70MMSCFD - Case 5.3df Date: January 09, 2007 DESCRIPTION: Description: Garden Gulch Mstr Mtr Spot Sample (12/06/06) 70 MMSCFD @ 700 psig @ 80 F (2) Kimray 45015PV @ 15.53 gal/min (28 spm/ea) Flash gas Sep @ 100 F & 60 psig JATCO BTEX Eliminator System Annual Hours of Operation: 8760.0 hours/yr EMISSIONS REPORTS: CONTROLLED REGENERATOR EMISSIONS Component lbs/hr lbs/day tons/yr Methane 0.5497 13.192 2.4076 Ethane 0.1160 2.785 0.5082 Propane 0.0694 1.665 0.3039 Isobutane 0.0381 0.913 0.1667 n -Butane 0.0387 0.928 0.1694 Isopentane 0.0321 0.771 0.1407 n -Pentane 0.0229 0.550 0.1003 Cyclopentane 0.0045 0.107 0.0196 n -Hexane 0.0270 0.647 0.1181 Cyclohexane 0.0844 2.025 0.3695 Other Hexanes 0.0498 1.195 0.2181 Heptanes 0.1045 2.507 0.4575 Methylcyclohexane 0.1670 4.008 0.7314 Benzene 0.4852 11.644 2.1251 Toluene 0.7159 17.182 3.1356 Xylenes 0.1370 3.288 0.6000 C8+ Heavies 0.0060 0.143 0.0261 Total Emissions 2.6479 Total Hydrocarbon Emissions Total VOC Emissions Total HAP Emissions Total BTEX Emissions UNCONTROLLED REGENERATOR EMISSIONS 2.6479 1.9822 1.3650 1.3381 63.550 11.5979 63.550 47.573 32.760 32.113 11.5979 8.6821 5.9788 5.8607 Component lbs/hr lbs/day tons/yr Methane 10.9971 263.929 48.1671 Ethane 2.3241 55.778 10.1796 Propane 1.3976 33.541 6.1213 Isobutane 0.7712 18.510 3.3780 n -Butane 0.7875 18.899 3.4491 Isopentane 0.6743 16.183 2.9534 Page: 2 n -Pentane 0.4833 11.600 2.1169 Cyclopentane 0.0959 2.302 0.4201 n -Hexane 0.6007 14.416 2.6310 Cyclohexane 1.9662 47.189 8.6120 Other Hexanes 1.0836 26.006 4.7461 Heptanes 2.6917 64.601 11.7896 Methylcyclohexane 4.3922 105.413 19.2379 Benzene 11.6328 279.187 50.9517 Toluene 22.1198 530.874 96.8845 Xylenes C8+ Heavies 7.7670 8.5953 186.408 34.0194 206.288 37.6475 Total Emissions 78.3802 1881.125 343.3053 Total Hydrocarbon Emissions Total VOC Emissions Total HAP Emissions Total BTEX Emissions FLASH GAS EMISSIONS 78.3802 65.0590 42.1202 41.5196 1881.125 1561.417 1010.886 996.469 343.3053 284.9586 184.4866 181.8556 Note: Flash Gas Emissions are zero with the Recycle/recompression control option. FLASH TANK OFF GAS Component lbs/hr lbs/day tons/yr Methane 163.4864 3923.674 716.0706 Ethane 24.9835 599.605 109.4279 Propane 9.4015 225.635 41.1784 Isobutane 3.6006 86.415 15.7708 n -Butane 2.8625 68.701 12.5380 Isopentane 2.0544 49.305 8.9981 n -Pentane 1.1879 28.508 5.2028 Cyclopentane 0.0611 1.467 0.2677 n -Hexane 0.7762 18.629 3.3998 Cyclohexane 0.6362 15,268 2.7864 Other Hexanes 1.8755 45.012 8.2146 Heptanes 1.5774 37.857 6.9090 Methylcyclohexane 1.0437 25.049 4.5715 Benzene 0,4679 11.230 2.0495 Toluene 0.5235 12.563 2.2928 Xylenes 0.0666 C8+ Heavies 0.4551 1.598 0.2916 10.924 1.9936 Total Emissions 215.0601 5161.441 941.9630 Total Hydrocarbon Emissions Total VOC Emissions Total HAP Emissions Total BTEX Emissions EQUIPMENT REPORTS: 215.0601 26.5901 1.8342 1.0580 5161.441 638.162 44.021 25.392 941.9630 116.4645 8.0337 4.6340 Page: 3 CONDENSER AND COMBUSTION DEVICE Condenser Outlet Temperature: 140,00 deg. F Condenser Pressure: 12.00 psia Condenser Duty: 2.42e-001 MM BTU/hr Hydrocarbon Recovery: 2.04 bbls/day Produced Water: 7.46 bbls/day Ambient Temperature: 50.00 deg. F Excess Oxygen: 20.00 % Combustion Efficiency: 95.00 % Supplemental Fuel Requirement: 2.42e-001 MM BTU/hr Component Emitted Destroyed Methane 5.00% 95.00% Ethane 4.99% 95.01% Propane 4.96% 95.04% Isobutane 4.93% 95.07% n -Butane 4.91% 95.09% Isopentane 4.76% 95.24% n -Pentane 4.74% 95.26% Cyclopentane 4.66% 95.34% n -Hexane 4.49% 95.51% Cyclohexane 4.29% 95.71% Other Hexanes 4.60% 95.40t Heptanes 3.88% 96.12% Methylcyclohexane 3.80% 96.20% Benzene 4.17% 95.83% Toluene 3.24% 96.76% Xylenes C8+ Heavies ABSORBER 1.76% 0.07% 98.24% 99.93% NOTE: Because the Calculated Absorber Stages was below the minimum allowed, GRI-GLYCa1c has set the number of Absorber Stages to 1.25 and has calculated a revised Dry Gas Dew Point. Calculated Absorber Stages: 1,25 Calculated Dry Gas Dew Point: 1.79 lbs. H20/MMSCF Temperature: 80.0 deg. F Pressure: 700.0 psig Dry Gas Flow Rate: 70.0000 MMSCF/day Glycol Losses with Dry Gas: 0.2482 lb/hr Wet Gas Water Content: Saturated Calculated Wet Gas Water Content: 41.86 lbs. H20/MMSCF Calculated Lean Glycol Recirc. Ratio: 7.97 gal/lb H2O Remaining Absorbed Component in Dry Gas in Glycol Water 4.27% 95.73% Carbon Dioxide 99.72% 0.28% Nitrogen 99.98% 0.02% Methane 99.98% 0.02% Ethane 99.94% 0.06% Propane 99.89% 0.11% Isobutane 99.84% 0.16% n -Butane 99.78% 0.22% Page: 4 Isopentane 99.77% 0,23% n -Pentane 99.70% 0,30% Cyclopentane 98.69% 1.31% n -Hexane 99.47% 0.53% Cyclohexane 97.63% 2.37k Other Hexanes 99.60% 0.40% Heptanes 98.96% 1.04% Methylcyclohexane 97.26% 2,74% Benzene 79.99% 20.01% Toluene 71.09% 28.91% Xylenes 52.16% 47.84% C8+ Heavies 97.00% 3.00% FLASH TANK Flash Control: Recycle/recompression Flash Temperature: 100.0 deg. F Flash Pressure: 60.0 psig Left in Removed in Component Glycol Flash Gas Water 99.93% 0.07% Carbon Dioxide 15.25% 84,75% Nitrogen 1.20% 98.80% Methane 1.22% 98.78% Ethane 4.68% 95.32% Propane 10.00% 90.00% Isobutane 15.35% 84.65% n -Butane 19.74% 80.26% Isopentane 23.26% 76.74% n -Pentane 27.83% 72.17% Cyclopentane 61.04% 38.96% n -Hexane 43.16% 56.84% Cyclohexane 76.22% 23.78% Other Hexanes 36.12% 63.88% Heptanes 62.96% 37.04% Methylcyclohexane 81.48% 18.52% Benzene 96.32% 3.68% Toluene 97.87% 2.13% Xylenes 99.26% 0.74% C8+ Heavies 95.54% 4.46% REGENERATOR Regenerator Stripping Gas: Dry Product Gas Stripping Gas Flow Rate: 4.0000 scfm Remaining Distilled Component in Glycol Overhead Water 52.83% 47.17% Carbon Dioxide 0.00% 100.00% Nitrogen 0.00% 100.00% Methane 0.00% 100.00% Ethane 0.00% 100.00% Propane 0,00% 100.00% Isobutane n -Butane Isopentane n -Pentane 0.00% 0.00% 1.36% 1.25% Page: 5 100.00% 100.00% 98.64% 98.75% Cyclopentane 0.74% 99.26% n -Hexane 0.93% 99.07% Cyclohexane 3.98% 96.02% Other Hexanes 2.07% 97.93% Heptanes 0.70% 99.30% Methylcyclohexane 4.69% 95,31% Benzene 5.16% 94.84% Toluene 8.04% 91.96% Xylenes 12.97% 87.03% C8+ Heavies 12.10% 87,90% STREAM REPORTS: WET GAS STREAM Temperature: 80.00 deg. F Pressure: 714.70 psia Flow Rate: 2.92e+006 scfh Component Conc. Loading (vol%) (1b/hr) Water 8.82e-002 1.22e+002 Carbon Dioxide 3.44e+000 1.17e+004 Nitrogen 1.16e-001 2.50e+002 Methane 8.83e+001 1.09e+005 Ethane 5.77e+000 1.34e+004 Propane 1.26e+000 4.29e+003 Isobutane 3.22e-001 1.44e+003 n -Butane 2.27e-001 1.01e+003 Isopentane 1.32e-001 7.32e+002 n -Pentane 6.79e-002 3,77e+002 Cyclopentane 2.00e-003 1.OBe+001 n -Hexane 3.10e-002 2.05e+002 Cyclohexane 1.60e-002 1.04e+002 Other Hexanes 8.29e-002 S.SOe+002 Heptanes 4.70e-002 3.62e+002 Methylcyclohexane 2.50e-002 1.89e+002 Benzene 9.99e-003 6.01e+001 Toluene 1.10e-002 7.79e+001 Xylenes 2.00e-003 1.63e+001 C8+ Heavies 2.20e-002 2.88e+002 Total Components 100.00 1.44e+005 DRY GAS STREAM Temperature: 80.00 deg. F Pressure: 714.70 psia Flow Rate: 2.92e+006 scfh Component Conc. Loading (vol%) (lb/hr) Water 3,77e-003 5.22e+000 Carbon Dioxide 3.44e+000 1.16e+004 Nitrogen 1.16e-001 2.50e+002 Methane 8.84e+001 1,09e+005 Ethane 5.77e+000 1.33e+004 Propane 1.27e+000 4.29e+003 Isobutane 3.22e-001 1.44e+003 n -Butane 2.27e-001 1.Ole+003 Isopentane 1.32e-001 7,31e+002 n -Pentane 6.78e-002 3.76e+002 Cyclopentane 1.97e-003 1.06e+001 n -Hexane 3.08e-002 2.04e+002 Cyclohexane 1.56e-002 1.O1e+002 Other Hexanes 8.27e-002 5.48e+002 Heptanes 4.65e-002 3.58e+002 Methylcyclohexane 2.43e-002 1.84e+002 Benzene 8.00e-003 4.80e+001 Toluene 7.82e-003 5.54e+001 Xylenes 1.04e-003 8.52e+000 C8+ Heavies 2.13e-002 2.80e+002 Total Components 100.00 1.44e+005 LEAN GLYCOL STREAM Page: 6 Temperature: 80.00 deg. F Flow Rate: 1.55e+001 gpm Component Conc. Loading (wt%) (lb/hr) TEG 9.84e+001 8.60e+003 Water 1.50e+000 1.31e+002 Carbon Dioxide 3.70e-011 3.23e-009 Nitrogen 5.67e-014 4.96e-012 Methane 7.56e-018 6.61e-016 Ethane 4.51e-008 3.94e-006 Propane 2.19e-009 1.91e-007 Isobutane 8.00e-010 6.99e-008 n -Butane 6.27e-010 5.48e-008 Isopentane 9.71e-005 8.49e-003 n -Pentane 6.53e-005 5.71e-003 Cyclopentane 8.15e-006 7.12e-004 n -Hexane 6.24e-005 5.45e-003 Cyclohexane 9.29e-004 8.12e-002 Other Hexanes 2.52e-004 2.20e-002 Heptanes 2.16e-004 1.89e-002 Methylcyclohexane 2.47e-003 2.15e-001 Benzene 7.24e-003 6.32e-001 Toluene 2.21e-002 1.93e+000 Xylenes 1.33e-002 1,16e+000 C8+ Heavies 1.35e-002 1.18e+000 Total Components 100.00 8,74e+003 RICH GLYCOL AND PUMP GAS STREAM Temperature: 80.00 deg. F Page: 7 Pressure: 714.70 psia Flow Rate: 1.65e+001 gpm NOTE: Stream has more than one phase. Component Conc. Loading (wt%) (lb/hr) TEG 9.36e+001 8.60e+003 Water 2.70e+000 2.48e+002 Carbon Dioxide 5.22e-001 4.79e+001 Nitrogen 4.18e-003 3.84e-001 Methane 1.80e+000 1.665+002 Ethane 2.85e-001 2.62e+001 Propane 1.14e-001 1.04e+001 Isobutane 4.63e-002 4.25e+000 n -Butane 3.88e-002 3.57e+000 Isopentane 2.92e-002 2.68e+000 n -Pentane 1.79e-002 1.655+000 Cyclopentane 1.71e-003 1.57e-001 n -Hexane 1.49e-002 1.37e+000 Cyclohexane 2.91e-002 2.685+000 Other Hexanes 3.20e-002 2.94e+000 Heptanes 4.64e-002 4.26e+000 Methylcyclohexane 6.14e-002 5.64e+000 Benzene 1.39e-001 1,27e+001 Toluene 2.68e-001 2.46e+001 Xylenes 9.79e-002 8.99e+000 C8+ Heavies 1.11e-001 1.02e+001 Total Components 100.00 9.18e+003 FLASH TANK OFF GAS STREAM Temperature: Pressure: Flow Rate: 100.00 deg. F 74.70 psia 4.71e+003 scfh Component Conc. Loading (vol%) (lb/hr) Water 8.15e-002 1.82e-001 Carbon Dioxide 7.43e+000 4.06e+001 Nitrogen 1.09e-001 3.79e-001 Methane 8.21e+001 1.635+002 Ethane 6.69e+000 2.50e+001 Propane 1.72e+000 9.405+000 Isobutane 4.99e-001 3.60e+000 n -Butane 3.97e-001 2.86e+000 Isopentane 2.29e-001 2.05e+000 n -Pentane 1.33e-001 1.19e+000 Cyclopentane 7.02e-003 6.11e-002 n -Hexane 7.25e-002 7.76e-001 Cyclohexane 6.09e-002 6.36e-001 Other Hexanes 1.75e-001 1.88e+000 Heptanes 1.27e-001 1,58e+000 Methylcyclohexane 8.56e-002 1.04e+000 Benzene 4.82e-002 4.68e-001 Toluene 4.57e-002 5.23e-001 Xylenes 5.05e-003 6.66e-002 C8+ Heavies 2.15e-002 4.55e-001 Page: 8 Total Components 100.00 2.56e+002 FLASH TANK GLYCOL STREAM Temperature: 100.00 deg. F Flow Rate: 1.59e+001 gpm Component Conc. (wt%) Loading (lb/hr) TEG 9.63e+001 8.60e+003 Water 2.78e+000 2.48e+002 Carbon Dioxide 8.19e-002 7.31e+000 Nitrogen 5.15e-005 4.60e-003 Methane 2.27e-002 2.03e+000 Ethane 1,37e-002 1.23e+000 Propane 1.17e-002 1.04e+000 Isobutane 7.32e-003 6.53e-001 n -Butane 7.89e-003 7.04e-001 Isopentane 6.98e-003 6.23e-001 n -Pentane 5.13e-003 4.58e-001 Cyclopentane 1.07e-003 9.58e-002 n -Hexane 6.60e-003 5.89e-001 Cyclohexane 2.28e-002 2.04e+000 Other Hexanes 1.19e-002 1.06e+000 Heptanes 3.00e-002 2.68e+000 Methylcyclohexane 5.14e-002 4.59e+000 Benzene 1.37e-001 1,23e+001 Toluene 2.69e-001 2.40e+001 Xylenes 1.00e-001 8.92e+000 C8+ Heavies 1.09e-001 9.75e+000 Total Components 100.00 8.93e+003 FLASH GAS EMISSIONS Control Method: Recycle/recompression Control Efficiency: 100.00 Note: Flash Gas Emissions are zero with the Recycle/recompression control option. REGENERATOR OVERHEADS STREAM Temperature: 212,00 deg. F Pressure: 14.70 psia Flow Rate: 3.09e+003 scfh Component Conc. Loading (vol%) (lb/hr) Water 7.97e+001 1.17e+002 Carbon Dioxide 2.30e+000 8.26e+000 Nitrogen 1.1Oe-002 2.52e-002 Methane 8.41e+000 1.10e+001 Ethane 9.48e-001 2.32e+000 Propane 3.89e-001 1.40e+000 Isobutane 1.63e-001 7.71e-001 n -Butane 1.G6e-001 7.87e-001 Page: 9 Isopentane 1.15e-001 6.740-001 n -Pentane 8.22e-002 4.83e-001 Cyclopentane 1.68e-002 9,59e-002 n -Hexane 8.550-002 6.01e-001 Cyclohexane 2.87e-001 1.97e+000 Other Hexanes 1.54e-001 1.080+000 Heptanes 3.30e-001 2.69e+000 Methylcyclohexane 5.49e-001 4.39e+000 Benzene 1.83e+000 1.160+001 Toluene 2.95e+000 2.21e+001 Xylenes 8.98e-001 7.770+000 C8+ Heavies 6.19e-001 8.600+000 Total Components 100.00 2.04e+002 CONDENSER PRODUCED WATER STREAM Temperature: 140.00 deg. F Flow Rate: 2.180-001 gpm Component Conc. Loading (wt%) (lb/hr) (ppm) Water 9.990+001 1.09e+002 999290. Carbon Dioxide 5.95e-003 6.47e-003 59. Nitrogen 5.40e-007 5.87e-007 0. Methane 4,34e-004 4.73e-004 4. Ethane 1.00e-004 1.090-004 1. Propane 7.O1e-005 7.63e-005 1. Isobutane 2.05e-005 2.23e-005 0. n -Butane 2.71e-005 2.95e-005 O. Isopentane 1.54e-005 1.68e-005 0. n -Pentane 1.17e-005 1.27e-005 0. Cyclopentane 1.50e-005 1.63e-005 0. n -Hexane 1.10e-005 1.20e-005 0. Cyclohexane 1.82e-004 1.98e-004 2. Other Hexanes 1.660-005 1.81e-005 0. Heptanes 2.30e-005 2.51e-005 0. Methylcyclohexane 1.69e-004 1.84e-004 2. Benzene 2.67e-002 2,900-002 267. Toluene 3.14e-002 3.41e-002 314. Xylenes 5.96e-003 6.49e-003 60. C8+ Heavies 6.76e-007 7.36e-007 0. Total Components 100.00 1.09e+002 1000000. CONDENSER RECOVERED OIL STREAM Temperature:140.00 deg. F Flow Rate: 5.96e-002 gpm Component Conc. Loading (wt%) (lb/hr) Water 4.91e-002 1.25e-002 Carbon Dioxide 2,63e-002 6.66e-003 Nitrogen 3.30e-005 8.37e-006 Methane 1.13e-002 2.86e-003 Ethane 1.33e-002 3.39e-003 Propane 3.87e-002 9.82e-003 Page: 10 Isobutane 4.O1e-002 1.02e-002 n -Butane 5.42e-002 1.38e-002 Isopentane 1.25e-001 3.18e-002 n -Pentane 9.97e-002 2.53e-002 Cyclopentane 2.60e-002 6.59e-003 n -Hexane 2.42e-001 6.14e-002 Cyclohexane 1.10e+000 2.79e-001 Other Hexanes 3.45e-001 8.75e-002 Heptanes 2.37e+000 6.02e-001 Methylcyclohexane 4.15e+000 1.05e+000 Benzene 7.49e+000 1.90e+000 Toluene 3.06e+001 7.77e+000 Xylenes 1.98e+001 5.02e+000 C8+ Heavies 3.34e+001 8.48e+000 Total Components 100.00 2.54e+001 CONDENSER VENT STREAM Temperature: Pressure: Flow Rate: 140.00 deg. F 12.00 psia 7.13e+002 scfh Component Conc. Loading (vol%) (lb/hr) Water 2.42e+001 8.19e+000 Carbon Dioxide 9.98e+000 8.25e+000 Nitrogen 4.78e-002 2.51e-002 Methane 3.65e+001 1.10e+001 Ethane 4.11e+000 2.32e+000 Propane 1.67e+000 1.39e+000 Isobutane 6.97e-001 7.61e-001 n -Butane 7.08e-001 7.74e-001 Isopentane 4.74e-001 6.43e-001 n -Pentane 3.38e-001 4.58e-001 Cyclopentane 6.78e-002 8.93e-002 n -Hexane 3.33e-001 5.39e-001 Cyclohexane 1.07e+000 1.69e+000 Other Hexanes 6.15e-001 9.96e-001 Heptanes 1.i1e+000 2.09e+000 Methylcyclohexane 1.81e+000 3.34e+000 Benzene 6.61e+000 9.70e+000 Toluene 8.27e+000 1.43e+001 Xylenes 1.37e+000 2.74e+000 C8+ Heavies 3.73e-002 1.19e-001 Total Components 100.00 6.94e+001 COMBUSTION DEVICE OFF GAS STREAM Temperature: 1000.00 deg. F Pressure: 14.70 psia Flow Rate: 2.34e+001 scfh Component Conc. Loading (vol%) (1b/hr) Methane 5.5Se+001 5.50e-001 Ethane 6.24e+000 1.16e-001 Propane 2.55e+000 6.94e-002 Page: 11 Isobutane 1.06e+000 3.81e-002 n -Butane 1.0Be+000 3.87e-002 Isopentane 7.21e-001 3.21e-002 n -Pentane 5.14e-001 2.29e-002 Cyclopentane 1.03e-001 4.47e-003 n -Hexane 5.06e-001 2.70e-002 Cyclohexane 1.62e+000 8.44e-002 Other Hexanes 9.35e-001 4.98e-002 Heptanes 1.69e+000 1.04e-001 Methylcyclohexane 2.75e+000 1.67e-001 Benzene 1.O1e+001 4.85e-001 Toluene 1.26e+001 7.16e-001 Xylenes 2.09e+000 1.37e-001 C8+ Heavies 5,67e-002 5.97e-003 Total Components 100.00 2.65e+000 EMPACT ANALYTICAL SYSTEMS, INC 365 SOUTH MAIN STREET BRIGHTON, CO 80601 (303) 637-0150 EXTENDED NATURAL GAS ANALYSIS (*DHA) PROJECT NO.: 200612046 ANALYSIS NO.: 01 COMPANY NAME : PETROLEUM DEVELOPMENT ANALYSIS DATE: DECEMBER 9, 2006 ACCOUNT NO. : SAMPLE DATE : DECEMBER 6, 2006 PRODUCER : TO: LEASE NO. : 5000 CYLINDER NO,: 755 NAME/DESCRIP : GARDEN GULCH MASTER METER ***FIELD DATA*** SAMPLED BY: G. McENDREE - EMPACT AMBIENT TEMP.: SAMPLE PRES.: 71811 SAMPLE TEMP. : 80° GRAVITY . COMMENTS : SPOT PROBE GPM@ GPM@ COMPONENT MOLE % MASS % 14.696 14.73 HELIUM 0.005 0.001 HYDROGEN 0.000 0.000 OXYGEN/ARGON 0.005 0.009 NITROGEN 0.106 0.158 CO2 3.445 8.100 METHANE 88.399 75.748 ETHANE 5.776 9.278 1.5413 1.5449 PROPANE 1.266 2.983 0.3480 0,3488 1 -BUTANE 0.322 1.001 0.1051 0.1053 N -BUTANE 0,227 0.703 0.0714 0.0716 1 -PENTANE 0.132 0.511 0.0481 0.0482 N -PENTANE 0.068 0.262 0.0246 0.0247 HEXANES PLUS 0.249 1.246 0.1011 0.1011 TOTALS 100.000 100.000 2,2396 2.2446 BTEX COMPONENTS MOLE% WT% BTU @ 14.696 14.73 BENZENE 0.010 0.042 LOW NET DRY REAL : 964.44 /scf 966.67 /scf ETHYLBENZENE 0,000 0.002 NET WET REAL : 947,63 /scf 949.86 /scf TOLUENE 0.011 0.053 HIGH GROSS DRY REAL : 1067.69 /scf 1070.16 /scf XYLENES 0.002 0.012 GROSS WET REAL : 1049.08 /scf 1051.55 /scf TOTAL BTEX 0.023 0.109 NET DRY REAL : 19506 /1b 19551 /lb GROSS DRY REAL : 21595 /lb 21645 /lb RELATIVE DENSITY (AIR=1): 0.6476 (CALC: GPA STD 2145 & TP -17 Q 14.696 & 60 F) COMPRESSIBILITY FACTOR : 0.99753 *DHA (DETAILED HYDROCARBON ANALYSIS/NJ 1993) ; ASTM D6730 THIS DATA HAS BEEN ACQUIRED THROUGH APPLICATION OF CURRENT STATE-OF-THE-ARTANALYIICAL TECHNIQUES. THE USE OF THIS INFORMATION IS THE RESPONSIILITY OF THE USER. EMPACT ANALYTICAL SYSTEMS. ASSUMES NO RESPONSIHLITY FOR ACCURACY OF THE REPORTED INFORMATION NOR ANY CONSEQUENCES OF ITS APPLICATION. Page I PROJECT NO. : COMPANY NAME: ACCOUNT NO. PRODUCER : LEASE NO. : NAME/DESCRIP : ***HELD DATA*** SAMPLED BY: SAMPLE PRES. : COMMENTS : Componenet Helium Hydrogen Methanol Carbon Dioxide Nitrogen Methane Ethane Propane Isobutane n -Butane Isopentane n -Pentane Cyclopentane n -Hexane Cyclohexane Other Hexanes Heptanes Methycyclohexane 2,2,4 Trimethylpentane Benzene Toluene Ethylbenzene Xylenes C8+ Heavies Subtotal Oxygen Total EMPACT ANALYTICAL SYSTEMS, INC 365 SOUTH MAIN STREET BRIGHTON, CO 80601 (303) 637-0150 E & P /GlyCalc Information 200612046 ANALYSIS NO.: 01 PETROLEUM DEVELOPMENT ANALYSIS DATE: DECEMBER 9, 2006 SAMPLE DATE : DECEMBER 6, 2006 TO: 5000 CYLINDER NO.: 755 GARDEN GULCH MASTER METER • G. McENDREE- EMPACT 7180 SPOT PROBE Mole % 0.005 0.000 0.000 3.445 0.106 88.399 5.776 1.266 0.322 0.227 0.132 0.068 0,002 0.031 0.016 0.083 0.047 0.025 0.000 0.010 0.011 0,000 0.002 0.022 99.995 0.005 AMBIENT TEMP.: GRAVITY . SAMPLE TEMP.: 80° WI % 0.001 0.000 0.000 8.100 0.158 75.748 9.278 2.983 1.001 0.703 0.511 0,262 0.009 0.142 0.070 0.385 0.257 0.133 0.000 0,042 0.053 0.002 0.012 0.141 99.991 0.009 100.000 100.000 Page 2 EMPACT ANALYTICAL SYSTEMS, INC 365 SOUTH MAIN STREET BRIGHTON, CO 80601 (303) 637-0150 EXTENDED NATURAL GAS ANALYSIS (*DHA) PROJECT NO.: 200612046 ANALYSIS NO.: 01 COMPANY NAME : PETROLEUM DEVELOPMENT ANALYSIS DATE: DECEMBER 9, 2006 GPM GPM COMPONENT PIANO II MOLE % MASS % 14.696 14.73 HELIUM 0.005 0.001 --- --- HYDROGEN 0.000 0.000 OXYGEN/ARGON 0.005 0.009 --- NITROGEN 0.106 0.158 --- CO2 3.445 8.100 METHANE PI 88.399 75.748 ETHANE P2 5.776 9.278 1.5413 1.5449 PROPANE P3 1.266 2.983 0.3480 0.3488 1 -BUTANE I4 0.322 1.001 0.1051 0.1053 N -BUTANE P4 0.227 0.703 0.0714 0.0716 2,2 DIMETHYLPROPANE 15 0.005 0.020 0.0017 0.0017 1 -PENTANE 15 0.127 0.491 0.0464 0.0465 N -PENTANE P5 0.068 0.262 0.0246 0.0247 2,2 DIMETHYLBUTANE I6 0.006 0.029 0.0025 0.0025 CYCLOPENTANE N5 0.002 0.009 0.0006 0.0006 2,3 DIMETHYLBUTANE 16 0.010 0.046 0.0041 0.0041 2 METHYLPENTANE 16 0.032 0.148 0.0132 0.0132 3 METHYLPENTANE I6 0.018 0.084 0.0073 0.0073 N -HEXANE P6 0.031 0.142 0.0127 0.0127 2,2-DIMETHYLPENTANE 17 0.001 0.008 0.0005 0.0005 METHYLCYCLOPENTANE N6 0.017 0.078 0.0060 0.0060 2,4 DIMETHYLPENTANE 17 0.002 0.012 0.0009 0.0009 2,2,3 TRIMETHYLEUTANE 17 0,001 0.004 0,0005 0.0005 BENZENE A6 0.010 0.042 0.0028 0.0028 3,3 DIMETHYLPENTANE 17 0.001 0.004 0.0005 0.0005 CYCLOHEXANE 06 0.016 0.070 0.0054 0.0054 2METHYLHEXANE 17 0,009 0.047 0.0042 0.0042 2,3 DIMETHYLPENTANE 17 0.002 0.013 0.0009 0.0009 1,1 DIMETHYLCYCLOPENTANE N7 0.002 0.009 0.0008 0.0008 3 METHYLHEXANE I7 0.008 0.042 0.0037 0.0037 I,C 3 DIMETHYLCYCLOPENTANE N7 0.002 0.013 0.0008 0.0008 LT 3 DIMETHYLCYCLOPENTANE N7 0.002 0.012 0.0008 0.0008 3 ETHYLPENTANE 17 0.000 0.002 0.0000 0,0000 1,T 2 DIMETHYLCYCLOPENTANE N7 0.003 0.018 0.0012 0.0012 N-HEPTANE P7 0.013 0.068 0.0060 0.0060 I,C 2 DIMBTHYLCYCLOPENTANE N7 0.000 0.001 0,0000. 0.0000 METHYLCYCLOHEXANE N7 0.025 0.133 0.0100 0.0100 2,2-DIMETHYLHEXANE 18 0.001 0.005 0.0005 0.0005 ETHYLCYCLOPENTANE N7 0.001 0.004 0.0004 0.0004 Page 3 PROJECT NO.: 200612046 ANALYSIS NO.: 01 COMPANY NAME : PETROLEUM DEVELOPMENT ANALYSIS DATE: DECEMBER 9, 2006 GPM GPM COMPONENT PIANO O MOLE To MASS % 14.696 14.73 2,5-DIMETHYLHEXANE 18 0.001 0.005 0.0005 0.0005 2,2,3-TRIMETHYLPENTANE I8 0.001 0.005 0.0005 0.0005 IC,2T,4-TRIMETHYLCYCLOPENTANE N8 0.000 0.002 0.0000 0.0000 3,3-DIMETHYLHBXANE 18 0.000 0.001 0.0000 0.0000 IT,2C,4-TRIMETHYLCYCLOPENTANE N8 0,000 0.002 0.0000 0.0000 TOLUENE A7 0.011 0.053 0.0037 0.0037 2,3-DIMETHYLHEXANE I8 0.001 0.003 0.0005 0.0005 2-METHYLHEPTANE 18 0.002 0.014 0.0010 0.0010 4-METHYLIIEPTANE 18 0.001 0.005 0.0005 0.0005 3-METHYLI4EPTANE 18 0.002 0.011 0.0010 0.0010 IC,2T,3-TRIMETHYLCYCLOPENTANE N8 0.003 0.016 0.0014 0.0014 1T,4-DIMETHYLCYCLOHEXANE N8 0.001 0,007 0.0005 0.0005 1,l-DIMETHYLCYCLOHEXANE N8 0.001 0.003 0.0005 0.0005 3T-ETHYLMETHYLCYCLOPENTANE N8 0.000 0.001 0.0000 0.0000 2T-ETHYLMETHYLCYCLOPENTANE N8 0.000 0.001 0.0000 0.0000 1,I-METHYLETHYLCYCLOPENTANE N8 0.000 0.001 0.0000 0.0000 1T,2-DIMETHYLCYCLOHEXANE N8 0.001 0,004 0.0004 0.0004 N -OCTANE P8 0.004 0.022 0.0020 0.0020 IC,4-DIMETHYLCYCLOHEXANE N8 0.001 0.003 0.0004 0.0004 IC,2-DIMETHYLCYCLOHF,XANE N8 0.000 0.001 0.0000 0.0000 1,1,4-TRIMETHYLCYCLOHEXANE N9 0.001 0.004 0,0005 0,0005 2,2,3-TRIMETHYLHEXANE 19 0.000 0.002 0.0000 0.0000 ETHYLCYCLOHEXANE N9 0.000 0.001 0.0000 0.0000 N-PROPYLCYCLOPENTANB N8 0.000 0.002 0.0000 0.0000 ETHYLBENZENE A8 0.000 0.002 0.0000 0.0000 1,3 -DIMETHYLBENZENE (M -XYLENE) A8 0.001 0.009 0.0004 0.0004 1,4 -DIMETHYLBENZENE (P -XYLENE) A8 0.001 0.003 0.0004 0.0004 4-METHYLOCTANE 19 0.000 0.001 0.0000 0.0000 2-METHYLOCTANE 19 0.000 0.002 0.0000 0.0000 3-ETHYLHEPTANE I9 0.000 0.002 0.0000 0.0000 3,3-DIETHYLPENTANE N9 0.000 0.001 0.0000 0.0000 IC,2T,4C-TRIMI:THYLCYCLOHEXANE N9 0.000 0.001 0.0000 0.0000 N-NONANB P9 0.001 0.005 0.0006 0.0006 1,3,5-TRIMETHYLBENZENE A9 0.000 0,001 0.0000 0.0000 3-METHYLNONANE 110 0.000 0.001 0.0000 0.0000 T-BUTYLBENZENE Al0 0.000 0.001 0.0000 0.0000 UNKNOWN NONANES U9 0.000 0.001 0.0000 0.0000 N-DECANE P10 0.000 0.001 0.0000 0.0000 UNKNOWN DECANES Ul0 0.000 0.001 0.0000 0.0000 N-UNDECANE PI1 0.000 0.001 0.0000 0.0000 TRIDECANES P13 0.000 0.001 0.0000 0.0000 TOTALS 100.000 100.000 2.2396 2.2446 Page 4 Company Name: Production Development Corporation Date: 1/10/2007 Field Name: Grand Valley Field Facility Name: Garden Gulch Compressor Station Fugitives Emission Calculation Equipment Leak Emission Estimates for 011 and Gas Production Operations (Emission Factors Derived From Table 2-4, EPA -453/R-95-017, "Protocol for Equipment Leak emission Estimates", November 1995) Component Type Equipment Service Category Equipment Service Category Gas (Ibelhr/eomponene Heavy 011' (<20 API Gravity) (Ihsmrlcomponen9 Light 011 (>20 API Gravity) (Ibalhrlcomp°nenl) WaterlLlght 0112 11Eelhrlwmponen0 Connectors 4.41E-04 1.85E-05 4.63E-04 2.43E-04 Flanges 8.60E-04 8.60E-07 2.43E-04 8.39E-06 Open-ended Lines 4.41E-03 3.09E-04 3.09E-03 5.51E-04 Pumps 5.29E-03 7.05E-05 2.87E-02 5.29E-05 Valves 9.92E-03 1.85E-05 5.51E-03 2.18E-04 Others 1.94E-02 7.05E•05 1.65E-02 3.09E-02 ' - All lectors ere for total organic compound ammo 1 -"Other' equipment typo includes compressors, pr dump arms, hatches, instruments, meters, polished r 2 - WaledLight Oil tactors apply to waler streams in Man 99%. for streams wilh w for content greater lh 3 - The emission lector tor pumps was nal derived in substituted for completeness. rates (includes non-VOC's such es methane and ethane). ssuro relief valves, relief valves, diaphrems, drains, ds and vents. I service with a water content greaser than 5 % to less n 99°/., the emission rate is considered negli oble. he actual protocol, the lector los "other" has een INPUTS: 1. List the quantity of each type of component in each type of service al the applicant's facility: Component Type Equipment Service Category Equipment Service Category Gas Heavy 011 (CO API Gravity) Light 011 (>20 API Gravity) WaterlLlght 011 Connectors 1429 0 418 46 Flanges 190 0 66 7 Open-ended Lines 0 0 0 0 Pumps 0 0 4 1 Valves 672 0 168 19 Other 36 0 6 6 NOTE: All component counts are estimated. Sample Calculation: TOC (TPY) = component quantity " component factor * 8,760 hr/yr e 1 ton/2,000 Ib.s VOC (TPY) = TOC " VOC Fraction from gas analysis Component Type Equipment Service Category Gas (TPY of TOC) Heavy 011 (<20 API Gravity) (TPY of TOO) Light 011 (>20 API Gravity) (TPY of TOC) WaterlLlght 011 (TPY of TOC) Connectors 2.759727 0.000000 0.847624 0.048861 Flanges 0.715526 0.000000 0.059483 0.000196 Open-ended Lines 0.000000 0.000000 0.000000 0.000000 Pumps 0.000000 0.000000 0.502123 0.000232 Valves 24.855175 0.000000 4.055656 0.017960 Other 2.974173 0.000000 0.362117 0.675944 TOTAL 31.304601 0.000000 5.827002 0.743212 Volume °At VOC Fraction Estimated Emissions 0.07 0.00 1.00 1.00 2.22 0.00 5.63 0.74 TPY VOC 0.51 0.00 1.33 0.17 Lbs/Hr VOC Combined Total 8.8 TPY VOC Lesair Environmental, Inc. www.tesalccom 2.01 Lbs/Hr VOC Company Name: Production Development Corporation Field: Grand Valley Field Facility Name: Garden Gulch Compressor Station Date: 1/10/2007 Storage Tank Emission Calculations Storage Tank Data Stack ID No. Tank Size (bbls) Number of Tanks Type of Fluid Stored Throughput (bbls/yr) TK -01 300 2 Condensate 18250 TK -02 200 1 Various NIA TK -03 100 1 Methanol 200 Emission Factors Stack ID No. Tank Size (bbls) VOC (Ib/bbl) Benzene (Ib/bbl) n -Hexane (lb/bbl) Methanol (Ib/bbl) EF Source TK -01 300 10.000 0.048 0.140 0.000 CO TK -02 200 N/A N/A N/A N/A N/A TK -03 100 0.068 0.000 0.000 0.068 EPA Emissions (I /hr) = E.F. (Ib/MMfts) • FHV/1000 • Burner Rating (MMbtu/hr) • 1/FHV (Btu/SCF) * 1 MMft3/10^6 lls • 10116 Blu/MMBtu Emissions (TPY) = Emissions (Lb/Hr) • Annual Operating Time (Hr/Yr) • 1 ton/2,000 Lb Uncontrolled Storage Tank Emissions Stack ID No. Tank Size (bbls) VOC (Ib/hr) (TPY) (lb/hr) Benzene (Ib/yr) (TPY) (Ib/hr) n -Hexane (Ib/yr) (TPY) TK -01 300 20.83 91.25 0.10 876.00 0.44 0.29 2555.00 1.28 TK -02 200 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TK -03 100 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 Stack ID No. Tank Size (bbls) Methanol (Ib/hr) (TPY) TK -01 300 0.00 0.00 TK -02 200 0.00 0.00 TK -03 100 0.00 0.01 Controlled Storage Tank Emissions Stack ID No. Tank Size (bbls) VOC (Ib/hr) (TPY) (Ib/hr) Benzene (Ib/yr) (TPY) (Ib/hr) I n -Hexane (Ib/yr) (TPY) TK -01 300 1.04 4.56 0.01 43.80 0.02 0.01 127.75 0.06 Stack ID No. Tank Size (bbls) Methanol (Ib/hr) (TPY) TK -01 300 0.00 0.00 NOTES: TK -01 Tank emission control wit ne an enciosec smokeless comoumron ueviw 4� ao �o ,�w��.,�• • �•• � �• A percentage of the lank throughput is received from other locations from skimmed tanks. Although it can be considered to have flashed, we have included it in the emission calculations as a worst case scenar Lesair Environmental, Inc. www.lesair.com Company Name: Production Development Corporation Field: Grand Valley Field Facility Name: Garden Gulch Compressor Station Date: 1/10/2007 Emission Calculation for External Combustion Sources (For Estimating Emissions, Using Emission Factors from EPA AP -42, Table 1.4-1 and Table 1.4-2) Burner Data Stack ID No. Burner Rating (MMBIu/Hr) Equipment Annual Op Time (hours) Fuel Type Fuel Htg Value (Btu/scf) Fraction of VOC 1 HT -02 1.500 Reboiler 8760 Field NG 960 1.00 7.6 11.0 11.0 0.00 0.00 0.01 0.05 0.02 0.07 1 - Fraction of VOC will be considered 100°k of TOC, ac 1 VOC In fuel as is -10 % of TOC. Emission Factors Stack ID No. Burner Rating (MMBIu/Hr) Emission Factors NOx (Lb/MMFI') CO (Lb/MMFt) SO2 (Lb/MMFt') PM (Lb/MMFI') T0C' (Lb/MMFt') VOC' (Lb/MMR') HT -02 1.500 100.0 84.0 0.6 7.6 11.0 11.0 0.00 0.00 0.01 0.05 0.02 0.07 EF Source AP -42 AP -42 AP -42 AP -42 AP -42 Estimate 2- Total Orga is Compunds TOC) 3 - VOC emission factor determined by laki g TOC factor times fraction of fuel gas that was VOC. Emissions (Ib/hr) = E.F. (Ib/MMft3) • FHV/1000' Burner Rating (MMbtu/hr)' 1/FHV (Btu/SCF) * 1 MMft3/10A6 fl'' 10A6 BIu/MMBtu Emissions (TPY) = Emissions (Lb/Hr) • Annual Oper ling Time (Hr/Yr) * 1 ton/2,000 Lb Source Emissions Stack ID No. Source Emissions NOx (Lb/Hr) (TPY) CO (Lb/Hr) (TPY) 802 (Lb/Hr) (TPY) PM (Lb/Hr) (TPY) VOC (LbMi) (TPY) HT -02 0.15 0.66 0.13 0.55 0.00 0.00 0.01 0.05 0.02 0.07 Lesair Environmental, Inc. www.lesair.com Company Name: Field Name: Facility Name: Production Development Corporation Grand Valley Field Garden Gulch Compressor Station Dale: 1/10/2007 Volatile Organic Compound Emission Calculation for Truck Loading LL= 12.46 •SPMIT LL = Loading loss (Lb/1,000 gal.), of liquid loaded S = Saturation factor (from AP -42 Table 5.2-1) P = True vapor pressure of liquid loaded (psia), (from AP -42 Table 7.1-2) M = Molecular weight of vapors (Lb/Lb-mole) T = Temperature of liquid loaded (°R = 460 - °F) S= 0.6 (For dedicated Hydrocarbon service) P= 7.2 True Vapor Pressure (psia) @ T=60 for a RVP=10 fluid 35 Lb/Lb-mole (from composition of vapor phase as per Tanks 4.09) T= 60 uF or 520 vR LL= 3.622985 Lb/1,000 gal. Loaded -For a facility making: 18,250 bbl/yr LL (TPY) = LL (Lb/1,000 gal) • annual production (bbl/yr) • 42 gal/bbl • 1 ton/2000 lbs Truck Loadout Emissions = 1.39 TPY of VOC Li (Ib/hr) = LL (Lb/11000 gal) • 240 bbl lank truck • 42 gal/bbl • 1 hr loadout duration Truck Loadout Emissions = 36.52 Iblhr of VOC Lesair Environmental, Inc, www.lesair.com 1/10/2007 m 0 O C o a � O U O+ O CO 0 go. y E e lo j m U IL Q T V o C d 7 o m 0 a a0i •0 C 'O O ai E Z :co E (E0 Z z O 0 (p Ou.U- Compressor Station Fuel Gas Analysis HHV Content Btu/scrMole Frac 0 O 0 0 0 0 0 0 0 0 0 0 0 0 O M O M CO r N NO r If) CO M r d; O r V N` CO N 6O M r N d' CO r r 1064.621 r M 0 0 0 0 0 0 O O I0'0L0L (D co 2516.1 3251.9 co M M 4000.9. fl 4008.9' a> N NI - v LHV BTU Content .0 0 0 0 0 0 0 O 0 O 0 O CO (OD m M (O N 06 CO 4.88 2.52 10.97, I 961.571 0 0 O O to 0 O 0 O 0 O V O m 1618.71 2314.9 3000.4 3010.8 O Cn Om) 0 coCO coV CO 0 "ccztt 1 VOC 1 (ornmo� n r 0 0 0 O 0 0 co 0 1.33471 2 0 0 0 0 O O 0 0 O N 0 r 0.03 co r ` V r 0.56) 0.19J CO 0 0 to O 0 0 r M 0 I 18.79831 E A J co m a M V 28.021 o N 30.07 44.09 58.12 O ti r N Mole Frac.] 0.0001 0 0 D 0 0 r 0 0 O e 0 0.0578 0.0127 0.0032 I 0.0023 0.0013 0.0007 N O O 0 0 0 O .= Mole 0 0 O O O O 19000 N ' M 0 r O 88.399 N- N- V) 1.266 0.322 0.227 0.1321 0.068 0.249 100.000 1 Component E (n ry m S S a) x O 0 O Z Methane 'Ethane c c (a (0 o , m a= 1N -Butane N a) c + ((ca c N m d p, x n. 1 N = Z= Totals S J CD ID O (D O 0 r a)= a) a) o o Ll E4.go. � o a__ co N > > 2 c Tn aa)) L 7 U n 1 (0 N d c .0 'c E o 4:- o N — > 0 N NOTE: 1-A 0 0 O 0 0 0 0 O C 0 0 4J A 6 E NoO > o = To e > 0 U m d (a C N 3 L CO y V V aE 2 a > C > Z > u o 0 0 Z$ u C c c 0 0 0 0 IP L.) V U 12 co LLu.u.0 a COGCC Performance Bond Appendix 14 Site Photo Log Photographic Log PHOTO 1 Subject: Existing Garden Gulch Compressor Site Description: Subject property. Photo taken facing southeast from northwest edge of site. Two existing Ajax natural gas compressors housed in partially -enclosed buildings on right. Storage tanks on left to be moved to east end of site. New compressors will be located in area directly east of current compressor . PHOTO 2 Subject: Existing Garden Gulch Compressor Site Description: Subject property. Photo taken facing south from north edge of site. West side of site currently used for compressor station. PHOTO 3 Subject: Existing Garden Gulch Compressor Site Description: Subject property. Photo taken facing southeast from northwest edge of site. Middle of site to house new compressors and compressor building. Photographic Log PHOTO 4 Subject: Existing Garden Gulch Compressor Site Description: Subject property. Photo taken facing southeast from north edge of site. East side of site is at a slightly lower grade than west side, and is currently used for equipment storage. East side of site will still be used for equipment storage as well as new location of produced water and condensate storage tanks. Visual screen to be placed along east edge of site to mitigate visual impacts to County Road 215. 4 y !"s 1 `* 't � _1i• }X1F'`n}y�.p"p,iY/`t3 ;. 0RA7s}•} i0.. ly��kL[Y ' r �,;.. w, � "�, _ , *1 `'..1., ? . s�c Y C s,ylMl�..�'I' ice` •1 1� PHOTO 5 Subject: Existing Garden Gulch Compressor Site Description: Subject property. Photo taken facing east - southeast from north edge of site. Site access road in foreground and Garden Gulch Road in middle of photo. County Road 215 running along top of photo is approximately IA mile away. { _ 9p ; Yae'`i tr'�gy "' ¢ : � , fi Y �'*hyy',-`s dap b ¢4� t� P lP< �f��' . �� s*y'�� „ x ::> s PI f� ,. `� s,.i iL ' .. i<.'." " CGTt sFrei % 3 w'}'' * ` w gl y yes Appendix 15 Public Notice Appendix 16 Agreement to Pay Form GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT FEE SCHEDULE Garfield County, pursuant to Board of County Commissioners ("Board") Resolution No. 98-09, has established a fee structure ("Base Fee") for the processing of each type of subdivision and land use applications. The Base Fee is an estimate of the average number of hours of staff time devoted to an application, multiplied by an hourly rate for the personnel involved. The Board recognized that the subdivision and land use application processing time will vary and that an applicant should pay for the total cost of the review which may require additional billing. Hourly rates based on the hourly salary, and fringe benefits costs of the respective positions combined with an hourly overhead cost for the office will be used to establish the actual cost of County staff time devoted to the review of a particular project. Actual staff time spent will be charged against the Base Fee. After the Base Fee has been expended, the applicant will be billed based on actual staff hours accrued. Any billing shall be paid in full prior to final consideration of any land use permit, zoning amendment or subdivision plan. If an applicant has previously failed to pay application fees as required, no new or additional applications will be accepted for processing until the outstanding fees are paid. Checks, including the appropriate Base Fee set forth below, must be submitted with each land use application, and made payable to the Garfield County Treasurer. Applications will not be accepted without the required application fee. Base Fees are non-refundable in full, unless a written request for withdraw from the applicant is submitted prior the initial review of the application materials. Applications must include an Agreement for Payment Form ("Agreement") set forth below. The Agreement establishes the applicant as being responsible for payment of all costs associated with processing the application. The Agreement must be signed by the party responsible for payment and submitted with the application in order for it to be accepted. The complete fee schedule for subdivision and land use applications is attached. GARFIED COUNTY BUILDING AND PLANNING DEPARTMENT BASE FEES The following Base Fees shall be received by the County at the time of submittal of any procedural application to which such fees relate. Such Base Fees shall be in addition to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board for the consideration of any application or additional County staff time or expense not covered by the Base Fee, which have not otherwise been paid by the applicant to the County prior to final action upon the application tendered to the County. TYPE OF PROCEDURE BASE FEE Vacating Public Roads & Rights -of -Way $400 Sketch Plan $325 Preliminary Plan $675 + application agency review fees and outside consultant review fees, as authorized pursuant to the Regulations, such as the Colorado Geologic Survey Final Plat $200 Amended Plat $100 Exemption from the Definition of Subdivision (SB -35) $300 Land Use Permits (Special Use/Conditional Use Permits) • Administrative/no public hearing $250 • Board Public Hearing only $400 • Planning Commission and Board review & hearing $525 Zoning Amendments • Zone District map amendment $450 • Zone District text amendment $300 • Zone District map & text amendment $500 • PUD Zone District & Text Amendment $500 • PUD Zone District Text Amendment $500 Board of Adjustment • Variance $250 • Interpretation $250 Planning Staff Hourly Rate • Planning Director • Senior Planner • Planning Technician • Secretary $50.50 $40.50 $33.75 $30 County Surveyor Review Fee (includes review of Amended Determined by Surveyor$ Plats, Final Plats, Exemption Plats) Mylar Recording Fee $11 — 1st page $10 each additional page Page 2 The following guidelines shall be used for the administration of the fee structure set forth above: 1. All applications shall be submitted with a signed Agreement for Payment form set forth below. 2. County staff shall keep accurate record of actual time required for the processing of each land use application, zoning amendment, or subdivision application. Any additional billing will occur commensurate with the additional costs incurred by the County as a result of having to take more time that that covered by the base fee. 3. Any billings shall be paid prior to final consideration of any land use permit, zoning amendment, or subdivision plan. All additional costs shall be paid to the execution of the written resolution confirming action on the application. 4. Final Plats, Amended or Corrected Plats, Exemption Plats or Permits will not be recorded or issued until all fees have been paid. 5. In the event that the Board determines that special expertise is needed to assist them in the review of a land use permit, zoning amendment, or subdivision application, such costs will be borne by the applicant and paid prior to the final consideration of the application. All additional costs shall be paid prior to the execution of the written resolution confirming action on the application. 6. If an application involves multiple reviews, the Applicant shall be charged the highest Base Fee listed above. 7. Types of "Procedures" not listed in the above chart will be charged at an hourly rate based on the pertinent planning staff rate listed above. 8. The Planning Director shall establish appropriate guidelines for the collection of Additional Billings as required. 9. This fee structure shall be revised annually as part of the County budget hearing process. Page 3 GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT AGREEMENT FOR PAYMENT FORM (Shall be submitted with application) GARFIELD COUNTY (hereinafter COUNTY) and Petroleum Development Corporation (hereinafter APPLICANT) agree as follows: 1. APPLICANT has subtnitted to COUNTY an application for a special use permit to modify the Garden Gulch Compressor Facility (hereinafter, THE PROJECT). 2. APPLICANT understands and agrees that Garfield County Resolution No. 98-09, as amended, establishes a fee schedule for each type of subdivision or land use review applications, and the guidelines for the administration of the fee stntcture. 3. APPLICANT and COUNTY agree that because of the size, nature or scope of the proposed project, it is not possible at this time to ascertain the full extent of the costs involved in processing the application. APPLICANT agrees to make payment of the Base Fee, established for the PROJECT, and to thereafter permit additional costs to be billed to APPLICANT. APPLICANT agrees to make additional payments upon notification by the COUNTY when they are necessary as costs are incurred. 4. The Base Fee shall be in addition to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board of County Commissioners for the consideration of an application or additional COUNTY staff time or expense not covered by the Base Fee. If actual recorded costs exceed the initial Base Fee, APPLICANT shall pay additional billings to COUNTY to reimburse the COUNTY for the processing of the PROJECT mentioned above. APPLICANT acknowledges that all billing shall be paid prior to the final consideration by the COUNTY of any land use permit, zoning amendment, or subdivision plan. APPLICANT gt hnk2 3/16/0 7 Date: (Por. ntite, Cordilleran Compliance Services, Inc. Print Name Mailing Address: 826 21 1/2 Road Grand Junction, CO 81505 10/2004 Page 4 Petroleum Development Corporation June 10, 2008 Garfield County Building and Planning Department Attn: Craig Richardson 108 8th Street, Suite 401 Glenwood Springs, CO 81601 Re: Required Revegetation Bond Dear Mr. Richardson: Pursuant to our telephone conversations, attached please find the fourteen thousand dollar ($14,000.00) revegetation bond required by Garfield County. This bond relates to the recently approved Special Use Permit for the Garden Gulch Compressor Station in Garfield County, Colorado. If you should have any questions or need any additional information please do not hesitate to contact myself at (303) 860-5808. Thank you for your cooperation and assistance in this matter. Sincerely, PETROLDEVELOPMENT CORPORATION �i tsenan 4Paul d Landman CORPORATE OFFICE: Petroleum Development Corporation 120 Genesis Boulevard • PO Box 26 Bridgeport, WV 26330 304-842-3597 DENVER OFFICE: Petroleum Development Corporation 1775 Sherman Street, Suite 3000 Denver, CO 80203 303-860-5800 EVANS OFFICE: Petroleum Development Corporation 3801 Carson Avenue Evans, CO 80620 970-506-9272