HomeMy WebLinkAbout1.05 Stormwater & SPCCSTATE OF COLORADO --------------------Bill Rifler, Jr .. Governor Jnmos O. Martin, executive Oirector Dedicated to protecting and improvIng the hcallh and environment ot the people of
Colorado <1300 Cherry Creek Or. $. Denver. Colorado 80246·1530 Phone (303) 692·2000 TDD Line (303) 691-7700 LocatEd in Glendale, Colorado hllp:llwww.cdpho.5Ialo.co.U5 June 20, Z007 laboratory
SeNico:) Division 8100 lowry Blvd. Denver. Colofado 80230-6928 (303) 692-3090 Terry C. Gosney, Reg Env Coord EnCan. Oil & Gas (USA) Inc_, 2717 County Road 21 5 Ste, I 00 Parachute, CO
SI635 970/285·2687 RE: Final Permit, Colorado Discharge Permit System -Stormwatcr Cel1ification No: COR·039167 Local Cotltact: Dear Sir or Madam: Piceance Creek R;o Binnco & GmJidd County
Terry Gosney, Reg Env Coord 97012H5·2687 Coloraoo Department ofPlIbl;c Health and Environment Enclosed please find a copy of the new permit and certitication which have been re·issued
to you under the Colomdo \Valer Quality Control Act. Your old permit explr~s on June 30, ~OO'l, 'I his IS a renewal to the permit, and replaces tlle old one, Sce page 2 of the Rationale
(the pages in italics) for a summary 0)' the changes to the permit. Your Certification under the pennit requires that specific actions be pcrfonned at designated times. YOll arc legally
obligated to comply with all terms and conditions of the permit. Please read the pcnnit and certification. If you have any questions please visit our website at : jv\\w,cdp-he,sta1c,Co,us!wq!pcrmitsl
lniustonnwater or contact Matt C7.ahor at (303) 692·3517. Sincerely, ,"-, /,,-J ),~-, .... ,.,l·,", '/'/' ::.--' Kathryn Dolan Storm water Program Coordinator Permits Unit WATER QUALITY
CONTI{oL DIVISION xc: Regional COllncil of Governments Local County Health Depal1ment District Engineer, Tcdlllical Services, WQeD Permit File
) ) STATE OF COLORADO -----------------------------------COLO I~\ DO J)E I> '\ lrr ~ I E:-;T OF PUBLIC HEAI.TH A ~ O ENVIRONMENT WATER QUALITY CONTROL DIVISIO:-; TEI, EPIIONE: (303)
692-3500 CEnTlFTCATlON TO J)JSCHARGE UNmm CDPS GENERAL PERMIT COR-030000 STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION Certifi cation Number COR039167 This Certification to Diseh~lrgc
speci fi ca lly aut horizes; EIICalla Oil & Gas (USA) Inc. I,EGAL CONTACT: Terry C. Gosl/ey, Reg Ellv Coorll h'IIClIJ/a -Oil <~ Gas (USA) JIIC. 2717 Cmlllty Road 215 Sle. 100 Parachute,
CO 81635 Pholle # 9701285-2687 Ie 1'1)'. gus II ey@ellcolul.com LOCAL CONTACT: Teny Goslley, Reg Ellv Coord, Pholle # 970/285-2687 Ie rry. gos"ey@ellc(lII(I.colII During the Construction
Activity: Gas and Oil Field Development to discharge stormwater from the racility identified as Piceance Creek which is located at: Gurlicld County -map in me , Co Lat itude 39/47/40,
LOllgitude 108/06120 In Rio Blanco & Garfield County to: Willow Creek --Yampa River Anticipated Activity begins 09130/2005 continuing through 091301201 0 On 95000 acres (800 acres di
sturbed) CCI1ilicmioil is cl'fCctive: 0710112007 Ccrti lication Expires: 06/30/20 12 Annual Fec: $245_00 (DO NOT PAY NOW -A prorated bill will be sent shonly_l Page I of 22
Pre pared by: EnCana 011 & Gas (USA) Inc. Parachute, Colorado Volume 1 Master Stormwater Management Plan Piceance Creek! Eureka! Story Gulch Unit COR-039167 Prepared By Dustin Forsling
Reviewed By Lindsey KruCkenberg Revised May 2008
Contents 1.0 Introduction ............................................................................................................................................ 1-1 1.1 Site Specific
Records ....................................................................................................................... 1-1 1.2 SWMP Administrator ............................................
........................................................................... 1-2 2.0 Narrative Description of Master SWMP Permit Coverage Area .......................................................
2-1 2.1 Sequence of Major Activities .......................................................................................................... 2-1 2.1.1 Well Pads and Roads .........................
................................................................................ 2-1 2.1.2 Pipelines ..................................................................................................
........................... 2-2 2.1.3 Compressor Stations, Treatment Facilities, or Other Facilities ........................................ 2-4 2.1.4 Man Camps and Helicopter Pads
............................................ , ........................................ , 2-5 2.2 Area Estimates, ......................... , ................ , ........ , ......................
, ..................................................... 2-6 2.3 Description of EXisting Topography and Soils ................................................................................
2-7 2.4 Description of Existing Vegetation ............................................................. , ................................... 2 .. 7 2.5 Identification of Potential
Pollution Sources ............................. ,., .................. , .......................... , ..... ,2-9 2.6 Allowable Sources of Non-Stormwater Discharge ....................................
.................................... ,H 0 2.7 Receiving Water ..... , ..... , ... , ........ , ................. ,., .... , ...........................................................................
2~10 2.8 Master SWMP Permit Area Map and Individual Stormwater Site Plans,., ... , .......................... ", .. 2-11 3.0 Best Management Practices (BMPs) .........................................
............................................. " ........... 3 .. 1 3.1 Erosion, Drainage, and Sediment Control BMPs ............................................................................
3 .. 1 3.2 Non-Starmwaler Control BMPs .................................. , ........................ , .......... , ................................ 3-1 3.2.1 Ma.terials Delivery andStorage
.... , ...... , ...... , .. , ....... , ............................................................ 3-2 3.2.2 Material Handling and Spill Prevention ...................................
, ......................................... 3-2 3.2.3 Vehicle Cleaning, Fueling. Maintenance. and Tracking Controls ................................. , .. ,3-2 3.2.4 Waste Management
and Disposal ............................................................................. , ..... ,3-2 3.2.6 Dewatering ................................................. , ... , ..
, ................ , ...... , .... ,., .... , ..... , ....... , ......... , .... 3-3 3.3 StormwaterManualof BMPs ....... . .. .......................... 3-4 3.4 Phased BMP Irnplement;ltion
........................................... .. . ....................................... ,3-4 4.0 Interim Reclamation and Final Sta.bilization ........................................................
............................... 4.1 5.0 Inspection and Maintenance .................................................................... , .............................. "., ...... "
.. 5-1 5.1 Inspection 8chedule ............ ,., ... , .......... , ............................................................. , ............................. 5-1 5.1,1 Minimum Inspection
Schedule for active sites ................................................................... 5-1 5.1.2 Post·Storm Event Inspections at Temporarily Idle Sites ................ , ...............
, ............ , ..... 5~1 5.1.3 Completed Sites ........................................................................... , ... , ...................... , ......... 5-1 5.1.4 Winter
Conditions Inspections Exclusion ............................................................ , ...... , ....... 5-2 Revised May 2008
5.2 Performing Inspections .................................................................................................................... 5-2 5.3 Maintenance ...................................
................................................................................................. 5-2 5.4 Documenting Inspections and Maintenance .....................................................
.............................. 5-3 6.0 Plan Revisions and Retentioll .............................................................................................................. 6-1
7.0 Inactivation Notice ................................................................................................................................. 7-1 8.0 Signature ...........................
..................................................................................................................... 8-1 9.0 Referellces .............................................................
................................................................................ 9-1 List of Appendices Appendix A General Permit Application Appendix B Revegetation Manual Appendix
C Existing Soil and Vegetation Data Appendix D Master SWMP Permit Area Map Appendix E Stormwater Manual of Best Management Practices (BMPs) Appendix F Final Stabilization Certification
Appendix G Inspection and Maintenance ReportFonm Appendix H Inactivation Form iI Revised May 2008
1.0 Introduction This Master Stormwater Management Plan (Master SWMP) satisfies the Colorado Department of Public Health and Environment (CDPHE) Water Quality Control Division (WQCD)
General Permit No. COR-03000D issued on May 31, 2007 for Stormwater Discharges Associated with Construction Activities (the Stormwater Construction Permit). EnCana Oil & Gas (USA) Inc.
(EnCana) has submitted a General Permit Application to WQCD, a copy of which is provided as Appendix A. This Master SWMP has been prepared in compliance with CDPHE WQCD, the Federal
Clean Water Act (CWA). and the National Pollutant Discharge Elimination Permit (NPOES) regulations found in 40 CFR. Part 122.26 for stormwater discharges. The objectives of this Master
SWMP are to: 1. Identify all potential sources of pollution which may reasonably be expected to affect the qual~y of stormwater discharges associated with construction activity within
this Master SWMP permit area at each project site; 2. Describe the practices to be used to reduce the pollutants in stomnwater discharges associated with construction activity within
this Master .SWMP permit area at each project site (also known as Best Management Practices (BMPs});and ensure the practices areselscted and described in accordance with good engineering
practices, including the installation, implementation and maintenance requirements; 3. 8e properly Prepared and updated to ensure compliance with the terms and conditions of the Stormwater
Construction Permtl; 4. Work hand in hand with the Site Specific Records, as described in the following section; and 5. Serve as an education 1001 and comprehensive reference/guide to
stormwater management for inspectors, surveyors, engineers, and EnCana employees and contractors. EnCana construction activities fall under one of two types. Exploration and Production
(E&P) sites involve the construction of well pads, roads. anel other facilities. Midstream Services (alsO referred to as Gas Gathering) sites involve the construction of pipelines and
compressor, treatment, and other facitities. This Master SWMP is intended to address stormwater management for any and all of these sites within this Master SWMP's Permit Coverage Area.
1.1 Site Specific Records While Volume 1 of the Master SWMP contains all of the general permit area information, Volume 2 of the Master SWMP contains all of the Site Specific Records
including all Individual Stormwater Site Plans (Site Plans), as discussed in Section 2.8, and all Inspection and Maintenance Reports (discussed in Section 5.4). These Site Specific Records
contain Information specific to each site (each well pad, compressor station, section of road/pipeline, etc.), including information on areas of disturbance, ecosystems and vegetation,
soil types, percent pre-disturbance ve~etation, etc. Any changes tothe design of individual sites or the BMPs used atthose sites will be noted on the Site Plans as those changes occur,
and kept with the Site SpeCific Records. The Site Specific. Records (Volume 2 of the Master SWMP) are bound separately from the body of this Master SWMP; however, both ate readily available
during any inspection. Both the body of this SWMP (Volume 1) and the Site Specific Records (Volume 2) comprise the entire SWMP,and go hand in hand in keeping EnGana in compliance with
stormwaterregulations. The Site Specific Records will be kept at the EnGana Field office in Parachute during active construction and site inspections to ensure accurate implementation,
inspections,and maintenance of BMPs, as well as timely reviSions to the Site Specific Records, 1-1 Revised May 2008
1.2 SWMP Administrator The SWMP Administrator is responsible for the process of developing. implementing, maintaining, and revising this SWMP as well as serving as the comprehensive
point of contact for all aspects of the facility's SWMP. SWMP Administrators: • E&P Sites: Terry Gosney, Regional Environmental Coordinator 2717 County Road 215, Suite 100, Parachute,
CO 81635 (970)285-2600 • Midstream Services: Brad Anknum, Piceance Midstream Operations Manager 2717 County Road 215, Suite 100, Parachute, CO 81635 (970)285-2600 1-2 ReviSed May 2008
2.0 Narrative Description of Master SWMP Permit Coverage Area Name of Permit Coverage Area: Piceance Creek! Eureka! Story Gulch Unit Permit Number: COR-039167 Location of the Permit
Coverage Area: • County: Rio Blanco & Garfeld Countys • City: Located approximately 29 miles West! North West of Parachute, Colorado, (See Site Maps for distance to the waters of the
state,) • Township/Section/Range: PICEANCE CREEK-Townships 1S, 2S 8. 3S, Ranges 95W, 96W & 97W, See Area Map for Sections, • LatitudefLongitude: Latitude 39/47/40. Longitude 108/06120,
Activities at the Permit Coverage Area will likely involve the construction of: • Well pads • Access roads • Pipelines •. Compressor stations The above construction activities are only
typical and may vary once construction begins, Up-to-date information on the construction of well pads, roads, pipelines, etc, will be kept with the Site Specific Records (Volume 2 of
the Master SWMP). 2.1 Sequence of Major Activities Site specific, scheduling. surface use agreements, and/or other constraints can and/or may dictate changes in construction seqllences,
signmcant sequence changes are addressed In the Site SpeCifiC Records (VolUme 2 of the Master SWMP), SpecifiC details on the construction and maintenance of BMPs mentioned below are
provided in the Stormwater Manual of Best Management Practices (BMP Manual) as discussed in Section 3.3, 2.1.1 Well Pads and Roads Construction activities for well pads and roads are
generally completed in the following sequence: Preconstruction; 1. Surveys. Topographic, vegetation, wildlife and archeology, as dictated, 2. TemporaryBMP's. Where physical access is
available, installation of terminal perimeter and temporary sediment controls, such as wattles, silt fence and/or other as necessary. Actual BMPs used for each site are shown on the
Site Plans (discussed in Section 2,8) and kept with the Site Specific Records (Volume 2 of the Masler SWMP), Construction: 3, Vegetation Clearing, VegelaUon will be cleared/grubbed and
placed along the perimeter al the terminal discharge edges/pOints in a windrow and/ordarl) beyond the edge of excavation and at any run-on-prolection discharge points, and/or chipped
or other depending on landowner requirements. 2-1 Revise_d May 2008
4. Diversions and Retention Reservoirs. After vegelation clearing and prior to topsoil stockpiling, diversions are to be placed for run·on·protection (ROP) to prevent the greater landscape
from discharging onto the planned disturbance. Temporary sediment control BMPs shall be placed at the discharge points at the ROP until permanent erosion cOntrols can be installed along
the entire length of the ROP. Diversions are to be installed along the terminal discharge edge inside of the vegetation windrows to convey site water/sediment to terminal discharge points
where rough retention reservoirs are to be installed. The retention reservoir outlets are to receive temporary sediment control BMPs until permanent retention reservoirs and erosion,
drainage, and sediment BMPs can be installed. 5. Topsoil Stripping/Conservation. All ACCESSIBLE TOPSOIL is to be removed from areas that are to be excavated, covered in subsoils, or
tumed.into stabilized unpaved surfaces. If initial topsoil stockpile areas are insufficient to acccmmodate the quantities of topsoil being generated. the excess is to be placed at either
end of the subsoil stockpile and segnegated as much as possible. After major earthwork, grading, and erosion/drainage/sediment.controls are complete, any areas that can be idehtlfied
for immediate interim reclamation $hall receive topSOil. 6. General Rough Grading, The site location will be graded to provide suitable surfaces for vehicle traffic andlor building sites,
and may be graded to establish surface drainage patterns, such as berms or roadside ditches as necessary. 7. Facility Specific Grading, Individual facil~ies may require additional excavation
to allow for construction of foundations. Excess soil will typically be used in general site grading. 8. Foundatiol1 Construction. To support facilities (such as tanks, processing equipment,
etc), foundations will be constructed. Foundations may consist of select backfill. concrete spread footings, or piles. Finished support elevations are to be installed twelve to eighteen
inches (12-18") above finished grade or the lowest point of the facility. 9. Facility construction. Tanks, processing equipment, etc. Will be constructed. Interim Reclamation: 10. Gravel
Surfacing. Areas used for access, parking, or materials stagif)g will typically be gravel surfaced, 11. Reclamation of Unused Areas. Areas not needed for facilities, roads, parking,
or materialS staging will generally be reclaimed. Salvaged topsoil will be spread and the vegetative seed mix will be applied. 12. Application of Erosion Stabilization, Depending on
terrain (e.g. steep slopes and drainage crossings) additional measures may be applied to increase stability of the reclaimed area. Final Reclamation: 13. Reclamation of Post..()peration
Areas, When operation of well pad or road is no longer necessary, the area will be decommissioned and all newly disturbed areas will be reclaimed. Any remaining topsoil will be spread
and the vegetative seed mix will be applied. This may occur>after termination of this permit and under the coverage of a new constnuction permit. 2,1.2 Pipelines Constr\lction activities
for pipelines are generally completed in the following sequence: Preconstructton: 1. Surv.eys. Topographic, vegetation, wildlife and archeology. as dictated. 2. Mark Right-Of.Way. The
construction right-of-way (ROW) will be marked prior to construction with laths and/or ftCigging. 3, Temporary BMPs, EnCana's stormwater inspectors will determine>location~ to install
preconstruction tempdrary erosion control devices. per Me specific BMF> installation plans and as necessary. 2·2 ReViSed May 2008
EnCana's contractor will maintain the erosion control structures as directed by the stormwater inspectors throughout atl phases of construction, or until permanent erosion control measures
are installed. Actual BMPs used for each site are shown on the Site Plans, which are kept with the Site Specific Records (Volume 2 of the Master SWMP). Construction: 4. Vegetation Clearing.
If necessary, vegetation will be cleared and placed in a windrow at the edge of the work area to be used later in reclamation activtties, removed from the construction site, or burned/chipped
depending on landowner requirements. Details for windrows are provided within the Stockpiling BMP of the BMP Manual (discussed in Section 3.3). 5. Topsoil Stripping. All ACCESSIBLE TOPSOIL
(from the entire width of the right-of·way) will be removed and temporarily stockpiled along the up· hili side 01 the right-of-way (IHerraln grades will allow) for later use in reclamation
activities. 6. General Grading. For pipeline segments that occur in relatively rough terrain, general grading will be .;;onctucted to create a safe and workable ground surface. This
is generally done to Form a relatively level work surface on steep cross slopes and to reduce slopes in undulating terrain (arroyo and wash crOSsings). The site location will be graded
to provide suilable surfaces for vehicle traffIC and/or building sites, and may be graded to establish surface drainage patterns, such as berms or roadside ditches as necessary. 7. Trench
Excavation. The trench needed for pipeline installation is almost always off-set In the ROW. The surveyors may indicate the location of the trench on their pipeline lateral. Generally,
the trench will be located in the firstthird of the ROW. The remaining two thirds of the ROW will be used for working space. The trench depth and width will vary with the number of pipes
to be installed and the pipe diameter. GenerallY, a 4-loot deep trench will be excavated by track-mounted excavators. The dnch will be excavated and sloped in accordance with OSHA specifications.
The cover from top of pipe to ground level will be a minimum of 36 inches. Where rock is encountered, tractor-mounted mechanical rippers or rock trenching equipment may be used to facilitate
excavation. The trench will be excavated and subsoil material stockpiled within the confines of the approved right·of·waylimits unless a temporary use area is approved from the proper
agency. Trench spoil will be stored in a separate location from the previously segregated topsoil. 8. Pipe In$tallallon. Pipe installation will include stringing, bending for horizontal
orvertieal angles in the alignment, welding the pipe segments together, coating the joint areas to prevent corrOSion, and then lowering-in and padding. 9. Stringing. Pipe will be hauled
by truck.to the pipeline ROW. Each joint of pipewill be unloaded and placed parallel to the <litah. 10. Bending. After the joints of pipe ara strung along the ditch, individual joints
of pipe may need lobe bent to accommodate horizonlal and vertical changes in direction. Field bends will be made utilizing a hydraulically operated bending machine. Where the deflection
of a bend exceeds the allowable limits for a field-bent pipe, factory (induction) bends will be installed. 11. Welding. After the pipe joints are bent, the pipe is lined Up end·to-end
and clamped into position. The pipe is then welded in conformance with 49 CFR Part 192, Subpar! E. "Welding of Steel Pipelines" and API 1104. "Standard for Welding Pipelines.and RelatedFacilities".
12. Welding Inspection. Welds will be visually inspected by a qualified inspector. Any deFects. will be repaired or cut out as required under the specified regulations and standards.
13. Coating. To prevent corrosion. the pipe will be externally coated with fusion bonded epoxy coating prior to delivery. Afterwelding, field joints will be coated with fusion bond epoxy
coating, tape and primer, or shrink sleeves. Before the pipe is lowered into the ditch, the pipeline coating will bevisually inspecteC/and tested withap electronic detector, andllny
faults or ecratches Will be repaired. 14. Lowering·lnand Padding, Once the pipe coating operation has been completed, a sectiOn of the pipe will be lowered into the ditch. Side·boom
tractors maybe usedtosimul!aneously lift the pipe, position it over the ditch. and lower ilin place. Inspection will be conducted to verify: that minimum cover is provided; the trench
bottom is free of rocks,debris, etc.; external pipe coating is not damaged: 2.;.3 Revlsed May 2008
and the pipe Is properly fitted and installed into the ditch. Specialized padding machines will be used to sift soil fines from the. excavated subsoil to provide rock-free pipeline padding
and bedding. In rocky areas, padding material or a rock shield will be used to protect the pipe. Topsoil will not be used to pad the pipe. At the completion of lowering-in and padding
activities the contractor may install trench breakers around the pipelines to minimize subsurface water flow. Details for trench breakers are provided within the BMP Manual (diSCussed
in Section 3.3). 15. Backfilling. Backfilling will begin after a section of the pipe has been successfully placed in the ditch and final inspection has been completed. Backfilling will
be conducted using a bulldozer, rotary auger backfill, padding machine or other suitable equipment Backfilling the trench Will use the subsoil previously excavated from the tnench, Backfill
will be graded and compacted, where necessary for ground stability, by being tamped or walked in with a wheeled or track vehicle. Compaction will be performed to the extent that there
are no voids in the trench, Any excavated materials or materials unfit for backfill will be utilized or properly disposi3d of in confonnancewith applicable laws or regulations, 16. General
Grading. If general grading was conducted to facilitate pipelinecc>nstruction, these materials will be replaced and graded to recreate thepreconstruction topography. Final Reclamation:
17. Cleanup. Cleanup activities will be initiated as soon as practicable after backfilling activities have been completed. All construction-related debris will be removed and disposed
of at an approved disposal facility. 18. Subsoil and Topsoil Placement. Subsoil will be evenly re-contoured across the right-of-way to pre-construction conditions. After the subsoil
has been re-spread the contractor will spread the previously segregated topsoil back across the right-of-way. The topsoil will be evenly spreacllo original contours. 19. Vegetation.
After any remaining topsoil is spread. the vegetative seed mix will be applied. The area will be revegetated according to private landowner Surface Use Agreements andlor according to
the I>LM/Forest Service reclamation requiremen!$ .. Details for revegetation are provided within the BMP Manual (diSCUSsed in Section 3.3) and the Revegetation Manual (provided as Appendix
B). 20, Application of Erosion Stabilization. Depending On terrain (e.g. steep slopes and drainage crossings) additional measllres may be applied to increase stability olthe reclaimed
area. Possible erosl.on Stabilization methods are provicled within the eMP Manual (discussecl in Section 3,3). Actual locations and measures used are shown on the Site Plans, which are
kept with the Site SpeCifIC Records (Volume 2 of the Master SWMP), 2.1.3 Compressor Stations, Treabnent Facilities, or Other Facilities. Construction activities for compressor stations,
treatment facilities, and other facilities are generally completed in the fo 1I0wing sequence: Preconstructlon: 1. Surveys_ Topographic, vegetation, wildlife and archeology, as dictated.
2. TemporaryBIVIP·s. Where physical access is available, installation of terminal perimeter and te!11pOrary sediment controls, such as wattles, slit fence anti/or other as necessary.
Actual BMPs used for each site are shown on the Site Plans, which are kept with the Site Specific Records (Volume 2 of the Master SWMP). Construction: 3. Vegetation Clearing. Vegetation
will be clearedlgrubbed and placed along the perimeter aUhe terminal discharge edges/paints in a windrow andlor dam beyond the edge of excavation and at any run-on-protection discharge
pOints. and/or Chipped or other depending on landowner requirements. 4. Diversions and Retention Reservoirs. After vegetation clearing and prior to topsoil stockpiling, 24 RQvised May
2008
diversion are to be placed for ROP to prevent the greater landscape from discharging onto the planned disturbance. Temporary sediment control BMP's shall be placed at the discharge points
of the ROP until permanent erosion controls can be instal/ed along the entire length of the ROP. Diversions are to be installed along the terminal discharge edge inside of the vegetation
wind rows to convey site water/sediment to terminal discharge points where rough retention reservoirs are to be installed. The retention reservoir outlets are to receive temporary sediment
control BMP's until permanent retention reservoirs and erosion, drainage, and sediment BMP's can be installed. 5. Topsoil Stripping/Conservation, AI/ACCESSIBLE TOPSOIL is to be removed
from areas that are to be excavated, covered in subsoils, ortumed into stabilized unpaved surfaces. If initial topSOil stockpile areas are insufficient to accommodate the quantities
of topsoil being generated, the excess is to be placed at etther end olthe subsoil stockpile and segregilted as much as possible. After major earthwork, grading, and erosion/drainage/sediment
controls are complete, any areas that can be identified for immediate interim reclamation shal/receive topSoil. 6. General Rough Grading. The Site location will be graded to provide
suitable surfaces for building sites and vehicle traffic, and may be graded to establish surface drainage patterns, such as benms or roadside ditches as necessary .. 7. Excavation. Soil
will be excavated to allow for the construction of foundations. Trenches will be excavated for all underground piping and conduit Excess soil will typically be used in general site grading.
8. Foundation Construction, Foundations will be constructed to support facility buildings. Foundations may consist of select backfill, concrete spread footings, piles. etc. Finished
support elevations are to be installed according to engineered drawings or twelve to eighteen inches (12-18') above finished grade or the lowest point of the facility. 9. Facility COl1structioo.
Buildings, tanks, processing equipment, etc. will be constructed. Utilities will be installed, Interim Reclamation; 10. Land~caping, If necessary, certain areas will be spread with topsoil
and landscaped. 11. Gravel SurfaCing. Areas used for access, parking, or materials staging will typically be gravel surfaced. 12. Reclamation of Unused Ar'l!s, Areas not needed for faCilities,
roads, parking, or materials staging will generally be reclaimed. Salvaged topsoil will be spread and the vegetative seed mix will be applied. 13. Application of Erosion Stabilization.
Depending on terrain (e.g. steep slopes and drainage crossings) additional measures may be applied to increase stability of the reclaimed area. Possible erosion stabilization methods
are provided within the BMP Manual (discussed in Section 3.3). Actual locations and measures used are shown on theSile Plans, which are kept with the Site Specific Records (Volume 2
of the Master SWMP). Final Reclamation: 14. Reclamation of Closed Facillt!es. When facilitieS are no longer necessary, the buildings may be demoliShed, according to appr.oved procedures.
All constructipn materials willberemoved and the newly .disturbed areas will bereclaimed. Any remaining topsoil will be spread and the vegetative seed mixwill be applied. This may occur
afterterminalion .ofthis permit and under the coverage .of a new construction permit. 2.1.4 Man Camps and Helicopter Pads C.onstructlon acti'litl~s for man camps, helicopter pads, and
other smal.1 aroas are generally completed in th.e following seq uence: . Preconstruction: 2-5 ReYI~d May 2008
1. Surveys. Topographic. vegetation. wildlife and archeology. as dictated. 2. Temporary BMPs. Where physical access is available. installation of terminal perimeter and temporary sediment
controls. such as wattles. silt fence andlor other as necessary. Actual BMPs used for each site are shown on the Site Plans. which are kept with the Site Specific Records (Volume 2 of
the Master SWMP). Construction: 3. Vegetation clearing. Vegetation will be cleared/grubbed and placed along the perimeter at the terminal discharge edgesJpoints in a windrow and/or dam
beyond the edge of excavation and at any run-on-protection discharge points. and/or chipped or other depending on landowner requirements. 4. Diversic)ns and Retention Reservoirs. After
vegetation clearing and prior to topsoil stockpiling, diversions may be placed for ROP to prevent the greater landscape from discharging onto the planned disturbance. Temporary sediment
control BMPs shall be placed at the discharge points of theROP until permanent erosion controls can be installed along the entire length of the ROP. Diversions may be installed along
the temninal discharge edgB inside of the vegetation windrows to convey site water/sediment to terminal discharge points where rough retention reservoirs are to be installed. The retention
reservoir outlets may receive temporary sediment control BMPs until permanent retention reservoirs and erosion. drainage,and sediment BMPs can be installed. 5. Top~oll Stripping/ConserVation.
All ACCESSIBLE TOPSOIL is to be removed from areas that are to be excavated, covered in subsoils, or turned into stabilized unpaved surtaces. If Initial topsoil stockpile areas are Insufficient
to accommodate the quantities of topsoil being generated, the excess is to be placed at either end of the subsoil stockpile and segregated as much as possible. After major earthwork,
grading, and erosion/drainage/sediment controls are complete. any areas that can be identified for immediate interim reclamation shall receive topsoil. 6. General Rough Graetlng. The
site location will be graded to provide suitable surfaces for vehicle traffic. trailers; etc. and may be graded to establish surface drainage patterns. such as berms or roadside ditches
as necessary. 7. Facility construction. Trailers. buildings. or other structures will be installed or constructed. Interim Reclamationj 8. Gravel SurfaCing. Areas used for access, parking,
or materials staging will typically be gravel surfaced. 9. Reclamation of Unused Areas. Areas not needed for facilities; roads, parking, or materialgstaging Will generally be reclaimed.
Salvaged topSOil will be spread and the vegetative seed mix will be applied. 10. Application of Erosion Stabilization. Depending on tetrain (e.g. steep slOpes and drainage crossings)
.addltlonal measures may be applied to l(lcrease stability of the reclaimed area. Possible erosion staililization methods are providedwithlnthe BMP Manual (discussed in Section 3.3).
Actual locations and measures used are shown on the Site Plans, which are kept WITh the Site Specific Records(Volume 2 of the Master SWMP). Final Reclamation; 11. Reclamation of Post-Operation
Areas. When operation of man camp or helicopter pad is no longer necessary, the area may be decommissioned and all newly disturbed areas will be reclaimed. Any remaining topsoil will
be spread and the vegetative seed mix will be applied. This may occur after termination of this permit and underthe coverage of a new construction permit 2.2 Area Estimates The total
Permit Coverage Area is estimated to be approximately 95,000 Acres. The area that will undergo clearing, exC<!vation, and/or grading is estima.tedto be approximately 800 acres. Because
the area will vary 2-6 Revised May 2Q08
over time, these are only approximate estimates. This information is used to help determine the extent of control measures (BMPs) needed. 2.3 Description of Existing Topography and Soils
The Permit Coverage Area consists of two climatic zones and are referred to as the Upper and Middle Zones. The Upper Zone exists at elevations between 7,500 to 8,500 feet ASL; excluding
southern facing slopes greater than 20%. Ann.ual precipitation within this zone ranges from 16 to 25 inches annually. The soils within the Upper Zone are primarily loam textured soils
within the Parachute-Rhone-Irigul series. These soils are mosUy well drained, cool soils with dark-colored organic-rich surface layers derived from shale and sandstone. Soil textures
above the rim are generally loam with loam to clay loam su!)-soils and range in depth from <20' on ridges to >60" in swales. All of the upland soils above the rim are in low to medium
erosion classes. The Middle Zone exists at elevations between 7,500 to 6,000 feet ASL; including southern facing slopes greater than 20%. Annual precipitation within this zone ranges
from 13 to 14 Inches annually. The area below the rim encompassing the cliffs, talus and steep colluvial slope at the base·of the cliffs are derived from the Green River shale. Below
the cliffS an(j talus is a zone of soilS formed from COlluvium and Wasatch Formations. Soils are shallow, poorly developed and there are many rock outcrops:and badlands. Badlands are
steep, nearly barren areas dissected by many ephemeral drainages. Soils on the upper slopes of this zone have a thin, organic-rich surface layer and littl.e development of soil horizons.
Soils on lower slopes are shallow to moderately deep and are well-drained. Surface texture is loam, clay loam, or silty clay loam with variable amounts of gravel, cobbles and boulders,
talus slopes and colluvial slopes below rock outcrops. Soils are moderate to highly alkaline. Sub-soils usually have higher clay content and are calcareous. Erosion hazard is usually
severe. A map and table summarizing the existing soils within the Permit Coverage Area (including permeability, available water capaCity, surface runoff, and erosion hazard of those
soils) are provided in Appendix C. 2.4 Description of Existing Vegetation The existing percent vegetative ground cover for each well pad, section of roadway/pipeline, etc. within the
Permit Coverage Area is estimated on each inspection and maintenance report form (discussed in Section 5.4), which are kept with the Site Specific Records (Volume 2 of the Master SWMP).
A map indicating the existing ecosystem Iypeswithin the Permit Coverage Area is provided in Appendix C. A description of the existing vegetation within each ecosystem (Mutel, 1992) is
as follows: Mountain Grasslands and MeadOWS. Natural wet meadows and fens are dominated by moistureloving species, primarily memberS of the sedge and rush families. Spike-rush (Eleocharis
{lalustris). sedges, Canadianreedgrass (Ca/amagrostis canadensis), and tufted hairgrass (Deschamps/a caspitosa) are common. Natural dry meadows are 'filled wtth members of the grass
family. Bunchgrasses dominate at low elevations. Needle-and-thread; mountain muhly (Muhlenbergia montana), Junegrass, blue grama, and species of wheatgress and bluegrass are common.
SucceSSional meadows .contain a combination of weedy, introduced plants and plants typical of dry, rocky slopes, such as common dandelion (Taraxacum officinale), .goldenbanner (Thermopsis
divaricarpa), Colorado locoweBd(Oxytropic sericeiil), mountain pussytoes (Antennada parvifolia), showy daisie:s(Erigeron speciwlls), stonecrop (Sedumlanceolalum), and some sedges (Carex
ssp.). Mountain grasslands, where Thurber fescue (Fes/uca thurberi) and mountain nJUhly were once the dominant grasses, are now largely dominated by blue grama, Canada bluegrass (Poa
compressa), foxtail barley (Crite~ionJubafl,lm),and other species asa result of grazing, Riparian Ecosystems a. LOYilandRlparlan Ecosvstems_ The lowland riparian ecosystem is:dominated
by the plains cottonwocd(Populus deltoidea ssp.occidehtalis), the valleycottonwood(Populus deltoidea ssp. wis/izenii) and the peach-leaved willow (Salix amygdaloides). Common shrubs
and herbaceous 2-7 Revlwd May 2006
plants include snowberry (Symphoricarpos occidentalis), sandbar willow (Salix exigua), bulrush (Schoenopleotus lacuslris), broad-leaved cat-tail (Typha lafifoJia), prairie cord-grass
(Spartina pectinata), and western wheatgrass. b. Mountain Riparian Ecosystems. The mountain riparian ecosystem is dominated by quaking aspen (Popllfus Ir9muloides), lanceleaf cottonwood
(Populus X flclJminata), narrowleaf cottonwood (Populus anguslifolia), and Colorado blue spruce (Picea pungens). Common shrubs include alder (Alnus incana), river birch (Betulafontinalis),
chokecherry (Padus virginiana), common gooseberry (Ribes inerme), bush honeysuckle (Dislegia involucrata), and mountain maple (Acerglabrum). The lush riparian herbaceous understory includes
fotbs, grasses, sedges, rushes, climbing vines, mosses, lichens, and liverworts. Weedy invaders are also common. Shrublands,. Shrub communities include semldeserl shrublands found in
dry lowlands, sagebrush shrublands that occupy a wide range of elevation from the Colorado Plateau to high mountain valleys, and montane shrublands other than sagebrush, characteristic
of foothills and mountain regions. a. Somidosert Shrublands. Common shrubs include Great Basin big sagebrush (Seriphidium melanlatum), greasewood (Sarcobalus vermiculatus), rabbitbrush
(Chlysothamnus), four-winged saltbusn (Atriplex canescf'ns), and shadscale (Atrip/ex conferiifolia). Common grasses and forbs Inc,lude galletagrass (Hilaria jamesil), blue 9nama, alkali
sacaton (Sporobo/us airoiele$), nodding eriogonum (Eriogonum cemuum), copper mallow (Sphaeralcea COCOinea), and prince's plume (Slanleya pinnata). b. SlIgebrush S"rublands. Common shrubs
include Great Basin big sagebrush, mountain big sagebrush (Seriphicfium vaseyanum), rabl,)itbrush, and servioeberry (Ame/anellier a/MoJia). Common grasses and forbs include nodding eriogonum,
copper mallow, and Indian Paintbrush (Castilleja spp.). c. Montane Shrublands. Common shrubs Include mountain mahogany-(CeroocBlpus), Gamble oak (Quercus gambe/iI). rabbitbrush, serViceberry.
and skunkbrush (Rhus aromatica). Common graS$eS and torbs include needle-and-thread, western whealgnass, copper mallow, and Inqian Paintbrush. Plnyon..Junlper Woodlands. Pinyon-juniper
woodlands, consist of scattered Utah juniper intenspensed with big sagebr~sh. Pinyon pine is a minor component. Several other shrub species also occurin this comm~nity, i~chiding snowberry,
bilterbT\Jsh (Purshia tridentata), snakeweed (Gutierreziasarothrae). and serviCf3b~rry. In genenal, the sparse herbaceous layer consists of graminoids such as cheatgnass (AniSantha tectorum),
Kentucky bluegrass (Poa pratenSiS), westem wheatgrass, Indian ricegrass (Oryzopsishymenoides), and squirrellail (Elymus elymdides). Forbs include Tracy's thistle (Cirsium tracyi), rnariposalily
(Ca/ochor/us nuttallii), western wallflower (Erysimum capftatuin), lapertiponion (Alliumacuminatum), yarrow (Achillea /anulosa). stemless four-nerve daisy (Tetraneuris 8c8ulis); and
sharp1elif twinpod (Physaria acutifolia). All of these are native species, except for chealgrass (an invasive, non'native annual species) and Kentucky bluegrass (a widely naturalized
non-native perennial species). Montane Forests a. Ponderosa Pine Forests. These forests are dominated by the ponderosa pine (Pinus ponderosa) and the Rocky Mountain juniper (Savina scopulorum).
Common shrub. and herbaceous plants include the wax currant (Ribes oereum), blue grama, side-oats grama. Junegrass, needle-and-thread, spike fescue (Leucopoa kinglf), and sulphur flower
(Eriogonum umbel/alum). b. Douglas Fir Forests. These forests are dominated by the Douglas fir (Pseudotsuga menzies;'). Common shrubs and herbaceous plants Include common juniper (Juniperus
communis), kinnikinnik(Arctostaphy/os), mountain maple (Acerglabrom), mountain lover (p'axis/ima mytsiniles), heart-leaved arnica (Arnica cordito/iil), andfalseSolomon'$ seal (Meiantl!emum
spp.) c. Aspen forests. Quaking aspen generally occur on north-facing slopes,and along drainage swales. The aspen forest generally has an understory otWood'srose (Rosawoocfsil).Colorado
2-8 Revised May 2008
blue columbine (Aquilegia caerulea), showy daisy, Thurber fescue, white geranium (Geranium richardsoniJ), common lupine (Lupinus argenteus), Fendler meadowrue (Thalictrum fend/en), and
American vetch (Vicia americana). d. Lodgepole Pine Forests. These forests are dominated by the lodgepile pine (Pinus contorta). Common shrubs and herbaceous plants include broom huckleberry
(Vaccinium scoparium), common juniper, kinnikinnik, sticky-laurel (Ceanothus ve!utinus), and heart-leaved arnica. Urban Areas, Urban areas contain an increased density of human-created
structures in comparison to the areas surrounding it. Depending on the area, vegetation may account for anywhere between 20 and 70 percent of the total land cover, with the remaining
portion being constructed materials. Types of vegetation within urban areas may be any combination of the above ecosystems, and may include areas of blue grass yards and parks. Cropland.
Cropland vagetation may consist of wheat, com, soybeans, or a variety of many other crops. Cropland may either lie fallow (bare of any crops) or contain crops at any stage of growth
from seedlings to mature plants. 2.5 Identification of Potential Pollution Sources Potential SQurces of pollution are associated with all phases of the projecUrom the. start of construction
though interim reclamation and up until final stabilization has occurred. Final stabilization occurs when construction activities have been completed and all disturbed areas have been
either built on, paved, or a uniform vegetative cover has been established with a density of at least 70 percent of pre -disturbance levels, or equivalent permanent physfcalerosion reduction
methods have been employed. The most common source of pollution during construction is sediment resulting from the erosion of recently cleared .and/or gnadedareas, such as cuVfili slopes
and soil stockpiles; However"there may be many potential pollution sources atally given site. The following types of conditions that'might affect the potential for a pollutant source
to cOntribute pollutants to stormwater (CDPHE, 2007B) shall be evaluated: • The frequency of the activity (i.e., does it occur every day or just once a month? can it be scheduled to
occur only during dry weather?); • Characteristics of the area where the activity takes place (Le., surface type (pavement, gravel, vegetatiOn, etc.), physical characteristics (site
gradients, slope lengths, etc.)); • Ability of primary and secondary containment (fuel tanks, drum.storage, etc,) at product storage and loading/unloading facilities 10 prevenland contain
spills and leaKs; • proximity of product storage and loading/unloading facilities to waterways or drainage facilities; • Goncentr';ilion and toxiCity of materials which may to ~e fo~n~
in the site'sslormwater runoff; and • Contamination of storage facilities/containment with stored materials (I.e., used oil drums or tanks coated with spilled oil). The following items
are potential sources of pollutants at the North Parachute. Ranch. Each olthe potential sources of pollutants will be controlled USing one or more of the follOwing types Of BMPs: Erosion
Controls, Drainage Controls, Sediment GontrQlsor Non-Stormwater Controls. Descriptions and details for each of these typesof BMPsare provided in the BMP Manual (discussed in Se.etion
33). Actual BMPs used at each site.are showl) an the Site Plans (discussed in Section 5.4). Construction: • AU Disturbed .and Stored Soils: Erosion Controls, DrainilgeControls, Sediment
Controls. • Vehicle Tnacking of sediments: .Sediment Controls, NOn-Stormwater Controls. • Managehnent of Contaminated Soils:' Non-Stormwater Controls. 2-9 Revised MaY-2008
• Loading and Unloading Operations: Non-Stormwater Controls. • Outdoor Storage Activities (Building Materials, Fertilizers, Chemicals, etc.): Non-StormwaterControls. • Vehicle and Equipment
Maintenance and Fueling: Non-Stormwater Controls. • Significant Dust or Particulate Generating Processes: Non-Stormwater Controls. • Routine Maintenance Activities Involving Fertilizers,
Pesticides, Detergents, Fuels, Solvents, Oils, etc.: Non-Stormwater Controls. • On-Site Waste Management Practices (Waste Piles, Liquid Wastes, Dumpsters, etc.): Non-Stormwater Controls.
• Concrete Truck/Equipment Washing, Including the Concrete Truck Chute and Associated Fixtures and Equipment: Non-Stormwater Controls. • Dedicated Asphalt and Concrete Batch Plants:
There will be no asphalt or concrete batch plants located within the Permit Coverage Area 6f this SWMP. • Nonclndustrial Waste Sources Such as Worker Trash and Portable Toilets: Non-Stormwater
Controls. InterimlFinal Reclamation: • All Disturbed and Stored Soils: Erosion Controls, Drainage Controls, Sediment Controls. • Vehicle Tracking of Sediments: Sediment Controls, Non-Starmwater
Controls. • Vehicle and Equipment Maintenance and Fueling:' Non-Stonmwater Controls. • Significant Dust or Particulate Generating Processes: Non-Stormwater ControlS. • Non-Industrial
Waste Sources such as Worker Trash and Portable Toilets: Non-StormwaterControls, 2.6 Allowable Sources of Non-8tormwater Discharge Allowable sources of non-storm water discharge within
the Permit Coverage Area include the following: • Uncontaminated Springs. Although there are several springs within the Permit Coverage Area, None of these springs are currently located
in areas where soil disturbance will occur. Ilthis changes in the future, the contrOls used at any such location will be noted in the SiteSpeciflO Records. (Volume 2) • Land~capG Irrigation
Return Flow. There are several locations in the Lower Zone where pipelines are within irrigated fields. These locations will be treated similarly to any water crossing with the use of
an appropriate control which will be noted in the Site Specific Records. • Construotion Dewatering. Construction dewatering is described and discussed in Section 3.2,5., • Concrete Washout.
Concrete washout is described and discussed in Section 3.2.4. • Emergency Fire Fighting Water, Water used to putout any type of fire is considered an allowable source of non-stormwater
discharge. No other non-stormwater discharges are allowed under the Stormwater Construclion Permit. Other types of non-stormwaterdischarges must be addressed in a separate permit issued
for that discharge. 2.7 Receiving Water Runofffrom disturbed areas during construction will be controlled andlor routed through the use of one or more BMPs, as described later in this
plan, prior to being discharged to receiving waters. However, it may be expected Ihat runoff from certain areas will infiltrate into the earth and is not expected to contribute toreceiving
waters. 2-10 Revise'd May 2008
In general, runoff from the Permit Coverage Area comes from springs and tributaries that lead to three different forks. West Fork will flow east to south east; Middle Fork will flow
south to south east and East Fork will flow west to south east. All tributaries will flow to Parachute Creek and then in to the Colorado River. 2.8 Master SWMP Permit Area Map and Individual
Stormwater Site Plans An overall Master SWMP Permit Area Map Is provided as Appendix D. This map is likely to change constantly and will be updated at least annually. The Master SWMP
Permit Area Map includes: • Contours and elevations (topography) with existing drainage pattems; • Locations and names of major surface waters such as streams, wetlands, inrigation ditches,
canals, etc ... ; • Master SWMP penmit area boundaries; and • Construction area locations including roads, pipelines, well pads, compressor station facilities, treatment facilities,
water parks, and all other facilities. Individual Stormwater Site Plans (Site Plans) of each site (well pad, access road, section of pipeline, etc.) are provided with the Site ::;pecific
Records (Volume 20f the Master SWMP) Separate Site Plans will be developed for each phase of construCtion: preconstruction, construction, interim reclamation (if applicable), final stabilization
(if applicable) and final reclamation (if applicable). These Site Plans include: • Construction site boundaries (this is the area expected to be disturbed by clearing, excavating, grading,
or other construction activities); • Contours and elevations (topography} with existing and proposed drainage patterns; • Limits of well pads and locations of reserve pits and well heads
(if appliCable); • All areas of ground surface disturbance, including areas of cut and fill; • Locations of all potential pollutant sources listed in Section 2.5 (including areas used
for vehicle fueling, the storage of materials, equipment, soil, or waste, etc ... ); • Locations of an minClt sLlrface waters and .. allanticipated allowable sources of non-stonmwater
diSCharge (including springs, dewatering, concrete washout, etc ... ); • Locations of all ~xisting and planned BMPs (including erosion, drainage, and sediment controls); • Locations,
names,and distances to streams, Wetlands, irrigation ditches, canals, and other surface waters; and . • The size, type and location of any outfall(s). If the stormwater discharge is
to a municipal separate stormwater system, name that system, the location of the storm seINer discharge, and the ultimate receiving water(s). Figures showing typical BMP locations along
roadways and pipelines are provided as part of the BMP Manual (discussed in SectionS.3). 2-11 Revised M~Y 2008
3.0 Best Management Practices (BMPs) A key component of this Master SWMP is employing BMPs to improve stormwater quality. Local factors will be evaluated to determine what BMPs are suitable
and practical at different locations. BMPs will be employed in different combinations during construction activities and phases as conditions warrant. Due to the fact that this Master
SWMP is likely to cover more than one ecosystem (as described in Section 2.4), the selection of BM Ps (including type, quantity, sequencelcomblnatlon, etc.) will vary at each site within
the Master SWMP Permit Area. Specific BMPs to be employed at each well pad, road, pipeline, or other facility are identified on the SHe Plans, which are kept with the Site Specific Records
(Volume 2 of the Master SWMP). 3.1 Erosion, Drainage, and Sediment Control BMPs The primary method for controlling erosion, drainage, and sediment transport consists of minimizing initial
disturbance of the soil and ground cover. However, many other methods can also be used. All stormwaterrelated BMPs will fall under at least one of the following three types of controls:
• Erosion Control, Any source control practice that protects the soil surface andlor strengthens the subsurface in order to prevent soil particles from being detached by rain or wind,
thus controlling raindrop, sheet, andlor rill erOSion. • Runoff Control. Any practice that reduces or eliminates gully, channel, and stream erosion by minimizing, diverting, or conveying
runoff. • Sediment Control. Any practice that traps the soil particles after they have been detached and moved by wind or water. Sediment control measures are usually passive systems
that rely on fittering or settling the particles out of the water or wind that is transporting them prior to leaving the site boundary. BMPs may also be classified as either structural
or han-structural controls: • Structural Control. Handles sediment-laden stormwater prior to it leaving each site. Structural BMPs are usM to delayicapture, store, treat, or infiltrate
stormwaterrunoff. Some examples of structural BMPs include sediment traps, diVersions, and silt fences. Most Runoff Controls ",nd Sediment Controls can also be classified as Structural
Controls. • Non-struotural Control. Reduces the generation and accumulation of pollutants; including sediment, from a construction site by slabilizing disturbed areas and preventing
the occurrence of erosion. Some examples of non-struotural BMPs include revegetation, mulching, and surface roughening, These types of stabilization techniques are not only the most
effective method for redUcing soil loss, but they are also normally the most cost effective due to low initial cost and reduced maintenance requirements. Most, but not all, ErOSion CQntrols
can also be classified as Non"slructuraIControls. The Site Plans, as mentioned previously and kept with the Site Specific Records (Volume 2 of the Master SWMP), show the proposed locations
olall erosion, drainage, and sediment control BMPs'(both structural and non-structural). Detailed descriptions, design <Jriteria, construction specifications, and maintenance information
for all BMPs are provided in the BMPManual (discussed in Section 3,3). 3.2 Non-Stormwater Control BMPs Non-stormwater controls include general site and materials management measures
that indirectly aid in the minimization of water pollution. Types of POllution sources include, but are not limited to, litter, oil and grease, hazardous material spills, and sediment.
3-1 Revised May 2008
3.2.1 Materials Delivery and Storage The good housekeeping practices listed below will be followed on site during construction and operation: • An effort will be made to store only enough
product required for task completion. • All materials stored on site will be stored in a neat and orderly manner in appropriate containers and, where possible, under a roof or other
enclosure, andlor within secondary containment areas to avoid contact with slormwater. • Products Will be kept In their original containers with the original manufacture~slabeJ. • Substances
will not be mixed with one another unless recommended by the manufacturer. • Whenever possible, all of the product will be used before disposing of the container. • Manufacturer's recommendations
for proper use and disposal will be followed. Additional information on material delivery and storage is available in the BMP Manual (discussed in Section 3.3). 3,2,2 Material Handling
and Spill Prevention In addition to the material storage practices (listed In the previous seciion) that·will.be used to reduce the risk of spills or other accidel'ltal exposure of materials
and substance, theBMP Manual (discussed in Section 3.3) will provide more detaile.(l inform~tlon on Spill prevention and control. Furtherm.ore, the Spill Prevention, Controland Countermeasure
(SPCC) Plan will be followed for the control of hydrocarbons. Ingeneral,spill prevention and response procedures will include notification (CDPHE 24-heur spill neperting line -877-518-5608),
dean-up with the useot spill kits and absorbents, and ensuringthatmaterlalsand wash water can not discharge frem the site, and never into a storm drain system or stream. 3,2.3 Vehicle
Cleaning, Fueling, Maintenance, and Tracking Controls As required by EnCana Oil & Gas (USA), Inc. master service agreement(s) and drilling contract(s),contracting companies andlor vendors
are required to service all vehicles and eqUipment prier to entering EnCana facilities. However. in the event maintenance procedures are required at EnCana faciliti!'!s, all fluids transferredmustuti
lizeSi:1Condarycontainment and drip pans to minimize a release of materials and properly dispose or recycle spent materials in compliance with local, state, and federal guidelines. While
on site, equipment will be parked, Serviced, and fueled Within designated areas. Equipment fueling on pipeline rights-of-way will be completed where necessary during active construction.
PeriQdic.inspections of equipment and control procedunes will be implemented. Selected equipment may be Mliedifl place using fuel trucks. When necessary,equipment and machinery will
be decontaminated at an on-site decontamination area prior to removal from the construction area. Areas Will be provided with adequate waste disposal receptacles for IICJuid'Bswell as
solid waste. Vehicle tracking of sediments is not expected to be a problem due toeonstn)cllOn scheduling,. Construction vehicleswi(l.remain on site throughoutearth-r1)oving activities.
All other vehicles remain in stabilized areas and .(lOnot enter,the con$lruction atEla until thCitarea is stabilized. However. applicable BMPs(such as scheduling (to mil1imi:z:esita
access),sfabilized constr\lction entranc<\s, vehicle cleaning,lIte.) will~e utilized if sediment tracking does become a problem. In addition to the typical practices listed above, the
BMP Manual (discussed in Section 3.3) provides more detailed infomnation on vehicle cleaning, fueling; maintenance. and tracking controls. 3,2.4 Waste Management and Disposal As required
by EnCana Oil 8. Gas (USA), Inc. master service agreement(s) anddrillingcontract(s), contracting companies and!orvendors are required tomanaga all waste generated by their activities
at EnCana facilities in 3-2 Revise'd MaY,2008
compliance with local, state, and federal guidelines. EnCana Oil & Gas (USA) utilizes a periodic inspection program to ensure waste management requirements are fulfilled and inspections
are documented. A few of the waste management procedures that will be followed include the following: • Proper bins will be provided for trash collection and disposal in compliance with
local, state, and federal guidelines. • Contaminated soils will be placed into a lined and bermed area. Samples of the impacted soil will be collected and a complete characterization
analysis will be performed. When applicable, the impacted soil will be sent to a licensed disposal facility. • The contractor will provide portable toilets. Sanitary waste will be regularly
collected by a licensed sanitary waste management contractor and disposed of in an approved manner. • In the event that sediment is inadvertently transported off the construction site,
tt will be collected and returned to the site and placed on the soil stockpile or spread over the construction pad area and compacted. On well pads and access roads concrete washout
is used as an interior conductor pipe ballast. Concrete washout water can NOT be discharged to surface waters or to storm sewer systems without separate permit coverage. However. discharge
to the ground of concrete washout water from washing of tools and concrete mixer chutes may be authorized by this permtt, provided that (CDPHE, 2007a): 1. The source is identified in
the SWMP; 2. BMPs are included in the SWMP to prevent pollution of groundwater; and 3. These discharges do not leave the site as surface runoff or to surface waters, Locations where
concrete washout activities take place are shown on the Site Plans. Additional waste management procedures, including solid waste, hazardous waste, contaminated soil, concrete washout,
and septic and sanitary waste. are included in the BMP Manual (discussed in Section 3.3). 3.2.5 Dewatering DeWatering referS to the mechanical removal of water from an excavation or
other structure. Both grouridwater and stormwater may require dewatering during construction. Dewatering of pipelines at the completion of hydrostatic testing will be required for most
pipeline installations. 3.2.5.1 Groundwater Dewatering Groundwater is very rarely encountered during the construction activities aSSOCiated wtth either E&P sites or Midstream Services.
If groundwater is encountered, It Is typically during construction of a pipeline across a stream crossing. These pipelines are either bored under the stream or a flume is utilized. Non-stomnwater
construction dewatering of groundwater can NOT be discharged to surface waters or to storm sewer systems without separate permit coverage. However, discharges to t~e ground of water
from construction dewatering activities may be authOrized by this permit, provided that (CDPHE, 2007a): 1. The source is groundwater andlor groundwater combined with stormwater that
does not contain pollutants in concentrations exceeding the State groundwater standards in Regulations 5 CCR 1002-41 and42, 2. The source Is identifiecl in the SWMP; 3-3 Revised May
2008
3. BMPs are included in the SWMP; and 4. These discharges do not leave the site as surface runoff or to surface waters. Dewatered groundwater shall be pumped or diverted to a sediment
control BMP prior to discharge to the ground. Locations of groundwater dewatering, as well as any BMPs utilized, will be noted on the Site Plans as soon as such dewatering occurs. Additional
information on groundwater dewatering is provided in the BMP Manuat, discussed in Section 3.3. 3.2.5.2 Stormwater Dewatering The discharge of pumped stonnwater (not including groundwater
or other non-stonnwater sources) from excavations, ponds, depressions, etc:, to surface water, or to a municipal separate stonn-sewer system is allowed by the Stormwater Construction
Permit, as long as the dewatering activity and associated BMPs are identified in the SWMP (including location of the activity), and BMPs are implemented in accordance with the BMP Manual,
discussed in Section 3.3 (COPHE, 2007c). Stormwater that collects in open depressEons or trenches during construction activities will be dewatered into an existing sediment control,
such asa detention pond, a sediment trap, or simply into a well-vegetated area to percolate into the ground and catch suspended sediment. The quality, source, and lacetion of dewatering,
as well as any BMPs utilized, will be noted on the Site Plans as soon as such dew"tering occurs. Additional infonnation on stormwater dewatering is provided in the BMP Manual,discussed
in Section 3.3. 3.2.5.3 Pipeline Dewatering New Department of Transportation (DOT) pipelines are hydrostatically tested with water upon completion of construction. Once the hydrostatic
testing has been Completed, dewatering of the pipeline must occur. This will involve the insertion of a dis placer, commonly referred to as a pig, in the pipeline. The discharge rate
will be regulated, and energy diSSipation devices, andlor sediment centro)s will be used, as necessary, to prevent erosion, streambed scour, suspension of sediments, or excessive stream
flow. Locations on pipeline dewatering, as Well as any BMPs utilized, will. be noted on the Site Plans .as soon as such dewatering occurs. Additional infOrmation on s!ormwaterdewatering
is provided inthe BMP Manual, discussed in Section 3.3. 3.3 stormwater Manual of BMPs A Stormwater Manual of Best Management Practices (BMP Manual) is provided as Appendix E. The. BMP
Manual has been prepared to provide EnCana personnel, contractors, and subcontractors with information on the proper selection, design, install~tion, ;ilnd maintenance of BMPs\o manage
oil and gas related stormwater and to meet federal ",nd state SWMP implementation requirements. Thema;n objectives of the BMP manuat are to: • SelVe as an easy-la-use guiqe for selecting,
qesigning, ;nstalling, and maintaining BMPs. • Function as a reference for Construction plans and specifications. • Ultimately lead to the avoidance of any net increase in off·site eresion
and sedimentation o.fwaters o.f the U.S. The BMPs within this BMP Manual are organized into. four main types o.f oontrols for easy reference: ErOSion Controls, Runoff Controls, Sediment
Controls, and Non-stormwater Controls, Each of these types of controls has been discussed earlier in this section 01 the SWMP. 3.4 Phased BMPlmplementation Various BMPs will be. implemented
and maintained during different phases of the project. A description of each phase is as follows: 3-4 Revised May 2008
• Preconstruction. The preconstruction phase involves the installation of BMPs (temporary andlor permanent) around each site perimeter and at discharge points (such as vegetation buffers
(no installation required for this BMP). slash, wattles, diversions, sediment basins and reservoirs, etc ... ). • Construction. The construction phase involves the stripping and stockpiling
of topsoil, the excavation and backfill for access roads, pipelines, and well pads, and the installation of additional BMPs (preferably permanent BMPs) to control erosion and sedimentation
(such as tracking topsoil piles and the installation of roadside channels, culverts, diversions, etc ... ). • Interim Reclamation. The interim reclamation phase primarily involves seeding
of all disturbed areas not needed during operation of the well pads. However, this phase also involves the installation of any additional permanent BMPs that may be needed, as well as
the continued maintenance and inspections of all BMPsuntii final stabilization ooeurs. Final stabilization occurs once all surfaces are built on, paved or graveled, andlor a uniform
stabilized vegetative cover with a density of 70 percent of pre-<listurbance levels has been established or when an llquivalent permanent, physical erosion redu<;tion method has been
employed. A further explanation pf final stabilization is provided as section 4 of this plan. • Final Reclamation. For pipelines, this phase involves seeding of all disturbed areas,
and the installation of any additional permanentBMPs,thatmay be needed, aswell as the continued maintenance and inspections of all BMPs until final stabilization occurs. For other areas
(rOadS, well pada, facilities, etc ... ), this phase (which may occur after termination of this permit and under the coverage of a new construction permit) occurs when operation of the
area is no longer necessary. In these cases, this phase will include the installation of any additional BMPs required during facility decommissioning as well as the spreading of any
remainingtppsoil, the application Qf seed, and the inspection/maintenance of all BMPs Ul1tH final stabilization occ~rs. Temporary controls, such as siltfencing, may be used to control
s.ediment and erosion during preconstruction and construction activities. Permanent controls, such as diversions and sediment traps, may also be used during the initial phases of the
project. However, only permanent controls will be used during interim reclamation and final stabilization. Temporary controls maybe converted Into permanent controls (such as revegetating
a diversion) if needed. The primary control used during inteJim and final stabilization will be revegetation. SeedlOg will occur as soon as possible after dlsturb,mce of an area Is complete.
Iflhe seeding is oot successful, the area will either be reseeded or other controls will.be put in place until reseeding can occur. 3·5 Re'Jlsed May 2008
4.0 Interim Reclamation and Final Stabilization As soon as practicable after construction activities have been completed in a disturbed area, interim (for well pads, or other facilities)
or final (for roads and pipelines) reclamation will be started to prevent further erosion of soil from that area, This typically occurs immediately upon completion of earthwork activities,
All disturbed areas (except for the surface of dirt roads, those portions covered by pavement or a structure, and those areas used during operation of a well) will be stabilized with
permanent controls, The most common measure used to achieve final stabilization is revegetation, Mulching, erosion control blankets, surfacing with gravel or slash, andlor other methods
may also be used, Structural controls (such as diversions, berms, and sediment traps) may be revegetated and used as permanent measures to control pollutants in stormwater discharges
that will occur after construction operations have been completed, Appendix E includes detailed information on each of the previously discussed BMPs, In addition, a revegetation manual
is provided as AppendixB, which provides guidance as to possible m,ethods and materials needed to accomplish revegetation on differing site condHions. The specific BMPs used at each
site are shown on the Site Plans which are kept Wiln the Site Specific Records (Volume 2 of the MasterSWMP), Final stabilization means that all. groqnd surface disturbing activities
althe site havebeen completed, and all disturbed areas have been either built on, paved,or a uniform vegetative cover has been establish,ed with an individual plant density of at least
70 percent of pre-disturbance levels, or equivalent pennanent, 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, Areas developed as stabiliZed unpaved surfaces as needed
for operation 01 the facility after interim reclamation, will also qualify as 'finally stabilized.' This includes dirt road surfaces and the portions of the well pad surfaces that cannot
be revcgetated due to operational necessity, but does not include slopes, ditches, and olner areas where revegetation is necessary. Stabilized unpaved surfaces will be prepared in such
a way as to prevent ongOing erOSion issues. Cover"ge under the Stormwater Construction Permit may be inactivated for any individual, site or a portionisection of that site (I.e, the
access road to a well pad) when the ,area has attained finat stabilization and all temporary erosion and sediment control measures associated with that area have been remove9, An area
will be ¢onsidered finally stabilized when conslructionand Interim rt)Ciamation is complete and when theal>ove final stabilization criteria have been met, even though the site may be
disturbed again in the futurefoffinal reclamation, However, future land disturbances that follow final stabilization and result in disturbance of one acre or greater (such as final reclamation)
will require new permit coverage at that time, Upon final stabilization of any site or portion/section of a sije. a signed certification sheet (provided in Appendix F) will be placed
into the Site Specific Records binder to replace the Site Plans and the inspection and maintenance records for that area. However, the Site Plans and inspection reports shall be retained
In a separate location for a period of three years following final stabilization of the Permit Coverage Area, These documents will be made available to WQCD or EPAupon request and at
the time of inspection, 4-1 Revised May 2008
5.0 Inspection and Maintenance Inspections and maintenance is an extremely important part of the Stormwater Construction Permit. The Construction Manager will ensure that all stormwater
management controls are constructed or applied in accordance with governing specifications or good engineering practices. Experienced teams will be used for construction. A first inspection
will occur upon installation of the controls. In addition, all workers on the site will be trained as to the location and use of the controls, especially those controls that will be
disturbed as construction proceeds across the site. The goal is to minimize the potential for inadvertent removal or disturbance of BMPs and to prevent the off sile transport of sediment
and other pollutants. 5.1 Inspection Schedule Inspections are required as soon as the first soil disturbance occurs at the site. Once final stabilization of the site has occurred and
the EnCana inspector has filled out the final stabilization certification sheet (see Section 4), inspections are no longer necessary. SpeCific information regarding inspection schedules
are provided in the following sections. 5.1.1 Minimum Inspection SchedUle for active sites The minimum inspection schedule applies to those sites under active construction, which includes
the period from when the ground is initially disturbed to when construction activity Is completed, and also includes the preparation of areas that will be revegetated for interim reclamation.
During the Active Site period, a thorough inspection of the site stormwater management system (which includes all utilized BMPs) must be conducted at least every 14 calendar days. Also,
post-storm event inspections must be conducted within 24 hours after the end of any precipitation or snowmelt event that causes surface erosion. There are three exceptions to the minimum
inspection schedule which are described in detail within ·the next three sections: post-storm event inspections at temporarily Idle sites (inspections required within 721)0urs after
a storm), inspections at completed sites (inspections required monthly), and inspections during certain winter conditions (InSpections may not be required). Any use of an exception is
temporary, and does not eliminate the requirement to perform routinemaintenance.due to the effects of a storm event or other conditions that may impact BMP performance, including maintaining
vehicle tracking controls and removing sediment trom impervious areas. Inspections. as described above. are required at all other times. 5,1.2 Post-$torm Event Inspections at Temporarily
Idle Sites Temporarily idle sites are those where there are no construction activities occurring following a storm event. At such sites, post-storm event inspections must be conducted
prior to restarting construction activities at the site, but ho later than 72 hours following the storm event, and the delay noted in the inspection report. Routine inspections still
must be conducted at least every 14 calendar days. 5,1.3 Completed Sites Once construction is completed and the site has been prepared for interim or final stabilization (including completion
of appropriate soil preparation, amendments and stabilization practices); the site (or portion 'olthe site) is considered a Completed Site (for purposes of the stormwater permit). Note:
only constructiOn activities that result in a disturbance of the ground surface must be COmpleted. Construction activities that can be conducted without disturbance of the ground surface,
such as certain well completion activities, would not prohibit a site from .otherwise qualifying as a Completed Site. (Completed Sites still require permit coverage until the final stabilization
criteria have been met) Completed Sites qualify for a reduced inspection schedule, as the potential for pollution is reduced ifth!'l site has been adequately prepared and/or seeded.
However, because slopes and other disturbed areas may not be fully vegetated, erosion in these areas still occurs which requires maintenance activities such as regrading 5-1 Re~ised
May 2008
and seeding of problem areas. As such, inspections must continue in order to address these situations. During the Completed Site period, a thorough inspection of the site stormwater
management system (which included all utilized BMPs) is recuired at least once every month. The SWMP must be amended to indicate those areas that will be inspected at this reduced frequency.
5.1.4 Winter Conditions Inspections Exclusion Inspections are not required at sites where construction activities are temporarily halted, snow cover exists over the entire site for an
extended period, and melting conditions posing a risk of soil erosion do not exist. This temporary exclusion is applicable only during the period where melting conditions.do not exis~
and applies to the routine 14-day and montNy inspections, as well as the post-storm-event inspections. It is typical that when snow cover exists, even at a Completed Site, significant
potential for erosion and BMPfailure exists when melling does finally occur. Therefore, the site should prepared prior to snow cover to ensure it is as stabilized as possible, and be
prepared to perform site maintenance when mett-off occurs. to alleviate any potential problems. Inspection records (see Section 5.4) must document.the following information when this
exclusion is used: dates when snow cover occurred, date when construction activities ceased, and date melting conditions began. 5.2 Performing Inspections Inspections will be conducted
by qualified personnel on the following areas: • All vegetated areas un1il70% of pre-disturbance vegetation levels are reached. • All BMP measures identified in this document. • Construction
site perimeter and discharge points. • All disturbed areas. • Areas used for storage of materiaVwaste that are exposed to precipitation. • Other areas determined to have a significant
potentialforstormwater pollution, such asdemQlition areas or concrete washout locations, or locations where vehicles enter or exit the site. These.areas will be Inspected to determine
if there is evidence of, orthe potential for, pollutantsleavingthe construction site boundaries, entering the stormwater drainage system, or discharging to state waters; All BMPs will
be evaluated to determine if they still meet the design and operational criterta in the SWMPand if they continue to adequately control pollutants at the site. Any BMPsnot operating in
accordance with Appendix E of this SWMP will be repaired or replaced (according to the following section) and the Site Specific Records will be upcated. 5.3 Maintenance Maintenance activities
will ensure that all control measures are functioning at optimum levels and. that all procedures and techniques will be in proper working order during a runoff event or spill condition.
Any maintenance, repairs, or replacements deemed necessary after required inspections will be corrected as soon as possible (if not immediately). to minimize the discharge of pollutants.
Cerlain maintenance procedures may take a short period of time to make sure that all the proper safety precautions are in .place, such as a 'one call" for utilities, If the maintenance
involves excavation of sediment located above a buried pipeline. Maintenance willlnqlud\l,but is not limited to: • Pickup o(otherwiseprevention 6f litter, construction debris, and construction
chEimicals from beccming a pollutant source. prior to anficipaled storm events. • Removal of s~diment from silt fences,sediment traps, and 9thersediment controls. • Reseeding of ~ny
bare spots where vegetation has failed toestabJish. 5·2 Revised May 2008
• Repairs and/or adjustments to any erosion and sediment control that is deteriorating or found to be performing inadequately. Detailed maintenance requirements for each BMP are identified
in Appendix E. When maintenance is required, the following process will typically be followed: 1. Perform inspections according to the minimum inspection schedule discussed in Section
5.1. 2. Note the need for maintenance on the inspection and maintenance report form. 3. tf necessary, collect the additional materials andlor resources needed to perform the maintenance
activity. 4. Perform maintenance and note the date perfonmed on the inspection and maintenance report fonm. 5. Re-inspect the area to ensure compliance. 5,4 Documenting Inspections and
Maintenance The permittee must document inspection results, maintenance activities, and maintain a record of the results for a period of 3 years following expiration or inactivation
of permit coverage. A typical Inspection and maintenance report form is provided in Appendix G. Although the site may have a phased construction Schedule, all construction areas may
be inspected at the same time and on one form. Each well pad, road, pipeline, or other facility which is inspected shall be clearly noted on the inspection form. Inspection reports will
include the following: • Date of inspection. name of inspector, and title of inspector • The area inspected (Site 10), type of area (well pad, access road, pipeline. etc.). phase of
construction (preconstruction, construction, etc.), and type of inspection (active, completed, etc.) • Site specific information including disturbed area, soil type(s), ecosystemlvegetation
type(s), receiving waters, etc. • Vegetation observations including the percent pre-disturbance vegetation and whether or not vegetation growth has reached 70% of pre-disturbance levels
• Specific inspection requirements (all BMPs and areas of potential pollutant sources) • Observed conditions including: • location(s) of discharges of sediment or othor pollutants from
the site • location(s) of BMPs that need to be maintained • Location(s) of BMPs that failed to operate as designed or proved Inadequate for a particular location • location(s) where
additional BMPs are needed that were not in place at the time of Inspecbon • Description and date(s) of corrective action(s) taken, and measures taken to prevent future violations •
Changes necessary to ihe SWMP A hand drawn Site Plan shall be included, if necessary, to show the location(s) of any observed condition (as listed above). After adequate corrective action(s)
has been taken and recorded, or where a report does not identify any incidents requiring corrective action, the report will contain a signed statement indicating the site is in compliance
with the permit to the best of the signer'S knowledge and belief. 5-3 Revised May 2008
All completed inspection and maintenance report forms (a blank copy of which is included in Appendix G) are kept with the Site Specific Records (Volume 2 of the Master SWMP). 5-4 Revised
May 2008
6.0 Plan Revisions and Retention When BMPs or site conditions change, the Master SWMP (Volume 1) andlor the Site Specific Records (Volume 2) will be amended to accurately reflect the
actual field conditions. Examples include, but are not limited to, removal of BMPs, identification of new potential pollutant sources, addition of BMPs, modification of BMP installationflmplementatio
n specifications or maintenance procedures, and changes in items included in the Site Plans. Changes to the Master SWMP (Volume 1) shall be noted on the SWMP Revisions log at the front
of this plan. Changes to individual site conditions will be noted in the Site SpecifIC Records (Volume 2) on the applicable inspection and maintenance report form. All changes in Volume
1 and Volume 2 shall be made prior to actual changes in the site conditions, except for responsive SWMP changes, which shall be made immediately after changes are made in the field or
as soon as practical, but in no case more than 72 hours after the change(s) in BMP installation and/or implementation occur at the site that require development of materials to modify
the SWMP. At a minimum, the Master SWMP will be updated annually. The Master SWMP and the Site Specific Records will be retained at the EnCana field office in Parachute during active
construction and site inspections to ensure accurate implementation and maintenance of 8MPs, and required revisions. These documents will be retained for a period of three years following
final stabilization of the Permit Coverage Area. These reports will be made available to WQCD or EPA upon request and at the time of inspection. 6-1 Revised May 2008
7.0 Inactivation Notice When all disturbed areas associated with the Stormwater Construction Permit have reached "final stabilization" (as described in Section 4), all temporary erosion
and sediment control measures have been removed, and all components of the SWMP are complete, the area no longer requires coverage under the permit terms. At that time, EnCana will submit
an Inactivation Notice that closes this permit to the WQCD upon final stabilization of all areas covered by the permit. A blank copy of this form is included in Appendix H of this document.
Upon receipt of the Inactivation Notice, the WQCD will provide written confirmation that coverage under this permit has been terminated. This historical documentation will be maintained
at the EnCana field office in Parachute for a Period of at least three years following termination of permit coverage. 7-1 Revis-eo May 2008
8.0 Signature "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 gathered and evaluated 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, to the best of my knowledge and belief, is true, accurate, and complete. I am aware that there are signincant penalties (or
submitting false information, including the possibility of fine and imprisonment or knowing violations." Printed name Title Signature Date Printed name Title Signature Date 6-1 ReviSEld
May 2008
9.0 References CDPHE, 2007a. COPS General Pennit, Authorization to Discharge under the Colorado Discharge Permit System. Colorado Department of Public Health and Environment. Water Quality
Control Division. Issued May 31, 2007. http://www.cdphe.state.co.uslwqlPermitsU niUstormwaterlSWConstructionPermit.pdf CDPHE, 2007b. General Permit Application and Stonnwater Management
Plan Preparation Guidance, Colorado Department of Public Health and Environment. Water Quality Control Division. Revised July, 2007. http://www.cdphe.state.co.uslwq/PermitsUnitistormwaterISWGonstruct
ionApptication.pdf CDPHE, 2007c. Rationale. Cotorado Department of Public Health and Environment. Water Quality Control Division. 2007. http://www.cdphe.state.co.usiwqlPermitsUniUstormwaterISWConstru
ctionRationale.pdf CDPHE,2007d. StormwaterFact Sheet-ConstlUction at Oil and Gas Facilities. Colorado Department of Public Health and Environment. Water Quality Conlrol Division. Revised
July, 2007. http://www.cdphe.state.co.us/wq/PermitsUniVstormwater/OGfactsheet.pdf EnCana.2005. Orchard Unil Geographic Area Plan. EnCana Oil & Gas (USA) Inc. EnCana. 2007. Environmental
Assessment of the Rulison Geographic Area Plan for Oil and Gas Development. EnCana Oil & Gas (USA) Inc. Mutel, C.F., and Emerick, J.C., 1992. From Grassland to Glacier -The Natural History
of Colorado and the Surrounding Region. US EPA, 1990. NPDESStormwater Regulations, 40 CFR Parts 122.26. U.S. Environmental Protection Agency. 9·1 Revised May 2008
SPILL PREVENTION CONTROL AND COUNTERMEASURE PLAN JUNE 2004 Prepared for: Encana Oil & Gas (USA) Inc. Rifle Area Gathering Facilities ENCANA , Prepared by: Buys & Associates, Inc. 300
E. Mineral Ave., Suite 10 Littletoll, Colorado 80122 (303) 781-8211 www.Buysandassociates.com
TABLE OF CONTENTS LIST OF APPENDICES .............................................................. ii REGULA TORY CROSS-REFERENCE ................................................. iii
1.0 GENERAL INFORMATION .................................................... I 1.1 Facility and Operator General Information ................................... I 1.2 Designated Person
Accountable for Oil Spill Prevention (40 CFR 112.7 (I) (2» ...... I 1.3 Management Approval (40 CFR 112.7) ..................................... I 1.4 Plan Implementation (40 CFR 112.7)
....................................... 3 1.5 Professional Engineer Certification (40 CFR 112.3 (d» ......................... 3 1.6 Plan History ......................................................
.... 5 1.7 Plan Review and Amendments (40 CFR 112.5) ............................... 5 1. 7.1 Review Summary ................................................ 7 1. 7.2 Amendment Summary
............................................ 7 1.7.3 Amendment Certification (40 CFR 112.5 (c» .......................... 9 2.0 SPILL PREVENTION AND CONTROL .........................................
II 2.1 Facility Conformance (40 CFR 112.7(a)(1) and (2» ........................... II 2.2 Facility Physical Layout (40 CFR 112.7 (a)(3» .............................. 12 2.3 Drainage
Pathways and Distances to Navigable Waters ........................ 12 2.4 Applicable Industry Standards (40 CFR 112.3) ............................... 13 2.5 Contact List and Phone
Numbers (112.7 (a)(3-5» ............................ 14 2.6 Spill Prediction and Control (40 CFR 112.7 (a) and (b» ........................ IS 2.7 Impracticable Containment or Diversion
Measures (40 CFR 112.7 (d)) . . . . . . . . . . .. 18 2.8 Oil Spill Contingency Plan and Commitment of Manpower (40 CFRI 12.7 (d)(1) & (2» .............................................
19 2.9 Discharge Countermeasures and Methods of Disposal (40 CFR 112.7 (a)(3)(iv)&(v» ........................................... 19 2.10 Regulatory Conformance ......................................
.......... 21 2.11 Regulatory Exclusions .................................................. 21 3.0 INSPECTIONS, TESTING AND TRAINING ...................................... 23 3.1 Inspections
and Testing (40 CFR 112.7 (e» ................................. 23 3.1.1 Scheduled Examinations. . . . . . . . . . . . . . . . . . .................. 23 3.1.2 Scheduled Inspections ..................
.......................... 26 3,1.3 Testing Procedures (40 CFR 112.7 Cd» ..................... , ........ 26 3.1.4 Brittle Fracture Evaluation (40 CFR 112.7(i» .. . ..................
27 3.2 Personnel Training and Discharge Prevention Procedures (40 CFR 112.7 (I) ....... 27 4.0 FACILITY SECURITY (40 CFR 112.7(g» ........................................ 29 5.0 TRANSFER,
PUMPING AND PROCESS OPERATIONS ............................ 31 Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. SPCC Plan June 30, 2004
LIST OF APPENDICES Appendix A Contact Lists and Phone Numbers, Spill Reporting Flowchart, Release Notification Form, and Qualified Discharge Report Form Appendix B Appendix C Appendix
D Appendix E Appendix F Central Facility Examination Form and Inspection Forms Stormwater Inspection Procedure and Drainage Record Training Record Form Certification of Substantial Harm
Determination Facility List and Site Specific Information Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 11 spec Plan June 30, 2004
REGULATORY CROSS-REFERENCE Regulatory Description of Regulatory Requirement Citation §112.3 (d)(3) Professional Engineer Certification §112.3 Applicable Industry Standards §I 12.5 (a),(e)
Plan Amendments and Certification §112.5(b) Plan Review § 112.7 General Requirements -Management Approval §112.7 General Requirements -Sequence or Cross-Reference §112.7 General Requirements
-Discussion of Facilities Not Yet Fully Operational § 112.7(a (2) Deviation from Requirements: Reasons, Methods, and Equivalent Protection §112.7(a)(3) Physical Layout and Facility Diagram
§112.7(a)(3)(i) Container Capacity and Type orDil §112.7(a)(3)(ii) Discharge Prevention Measures §112.7(a)(3)(iii) Discharge or Drainage Controls §112.7(a)(3)(iv) Countenneasures: Discover,
Response, and Cleanup. §112.7(a)(3)(v) Disposal: L~gal R~quiremcnts § I 12.7(a)(3)(vi) Notification Phone Lists §I 127(a) 4) Discharge Notification Fonn §112.7(a)(5) Discharge Procedures
Organized §1127(b) Fault Analysis §112.7(e) Adequate Secondary Containment §1127(d)(I) Continoency Planning §112.7(d)(2) Commitment of Resources §112.7(e) Inspections, Tests, and Records
-Written Procedures §112.7(e) Inspections, Tests, and Records -Records ofInspections & Tests; SiGnatures §112.7(e) Inspections, Tests, and Records -Records Maintenance §112.7(1)(1) Personnel
TraininG §1127(1)(2) Designated Person Accountable for Spill Prevention §112.7(1)(3) Spill Prevention Briefings §112.7(g)(I) Security §112.7(g)(2) Flow and Drain Valves Secured §112.7(")(3)
Pump Controls Locked Off; Facility Access Secured §112.7(g)(4) Loading/Unloadino Connections Sealed §112.7(")(5) Lighting Appropriate for Facility §112.7(h) Tank Truck Loading/Unloading
Area §112.7(i) Brittle Fracture Evaluation §1127(j) Conformance with State Requirements §112.8(b) Non-production facility drainaGe §112.8(c) Non-production facility bulk storaoe containers
§1128(d) Non-production facility transfer operations, pumping and facility process §112.9 Facility transfer ()perations, oil production facility §112.10(b) Mobile facilities §1I2.IO(e)
Secondary containment -catchment basins or diversion structllres §112.10(d) Blowout prevention (BOP) §112.11 Plan Requirements for offshore oil drilling, production, or \vorkover facilities
§112.12 SPCC plan requirements for onshore facilities (excludin~ production) § 112. J3 SPCC plan requirements for onshore oil production facilities §112.14 SPCC plan requirements for
onshore oil drillino facilities §1I2.15 SPCC plan requirements for offshore oil drillino facilities §112.20 Facility Response Plans J Certification of Applicability of Substantial Harm
Criteria Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. III Section Number 1.5 2.4 1.7, 1.7.2, 1.7.3 1.7,1.7.1 1.3 Cross-Reference 1.4 2.1 2.2, Appendix F App~ndix F 2.6
2.6 2.9 2.9 2.5, Appendix A 2.5, Appendix A 2.5, Appendix A 2.6 Appendix F 2.8 2.8 3.1.1,3.1.2 Appendix B Appendix B 3.2 1.2, 3.2 3.2 4.0 4.0 4.0 4.0 4.0 2.6 3.1.3 2.10 3.1, Appendix
C 3.1, Appendix F 5.0, Appendix C 2.11 2.1 I 2.11 2.1 I 2. I I 2.1 I 2.11 2.11 2.1 I 2.11, Appendix E spec Plan June 30, 2004
Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. This Page Intentionally Blank. IV spec Plan June 30, 2004
1.0 GENERAL INFORMATION 1.1 Facility and Operator General Information I. Name of Facility: Rifle Area Gathering Facilities 2. Type of Facility: Onshore CompressionlProcessing Facility
3. Facility Locations: A list of the individual facilities subject to this plan is located in Appendix F. 4. Name and Address of Owner or Operator Name: Encana Oil & Gas (USA) Inc. Address:
2217 Connty Road 215, Suite 100 Parachute, CO 81635 1.2 Designated Person Accountable for Oil Spill Prevention (40 CFR 112.7 (I) (2)) The following person reports to management and is
accountable for discharge prevention at the subject facilities. Name: Brad Ankrum Title: Field Operations Coordinator 1.3 Management Approval (40 CFR 112.7) Encana Oil & Gas (USA) Inc.
is committed to the prevention of discharges of oil tothe environment, including navigable waters, and maintains the highest standards for spill prevention control through regular review,
updating and implementation of this SPCC plan. With the signature below, I certify that this Spill Prevention, Control and Countermeasures plan will be implemented as herein described.
Signature: _____________ _ Name: Jess Wood Title: Team Leader Rifle Area Gathering Facilities Eneana Oil & Gas (USA) Inc. Date: __________ _ spec Plan June 30, 2004
Rifle Area Gathering Facilities Eneana Oil & Gas (USA) Inc. This Page Intentionally Blank. 2 spec Plan June 30, 2004
1.4 Plan Implementation (40 CFR 112.7) Any additional facilities, procedures, methods, or equipment not yet fully operational are discussed below with the details of installation and
start-up. Inspection and testing procedures specified in Section 3.0 are to be implcmented as soon as practical, but no later than six months following the date of this plan. Secondary
containment stmctures for containers and process equipment arc to be constructed and maintained as indicated on the facility diagram in accordance with API Standard 2610-Design. Construction.
Operation. Maintenance. and Inspection of Terminal and Tank Facilities. The containment stmctures are to be constructed or improved as soon as practical, but no later than six months
following the date of this plan. Security fencing as outlined in Section 4.0 of this plan is to be constructed as soon as practical at the East Mamm Creek and Hunter Mesa facilities.
but no later than six months following thc date of this plan. 1.5 Professional Engineer Certification (40 CFR 112.3 (d)) By means of this Professional Engineer Certification, I hcreby
attest that: I) I am familiar with the provisions of 40 CFR Part 112; 2) I, or my agent, have visited and examined the facilities; 3) This SPCC Plan has been prepared in accordance with
good engineering practice, including consideration of applicable industJy standards, and with the requirements of 40 CFR 112; 4) Procedures for required inspections and testing have
been established, and 5) This plan is adequate for the subject facilities. Date: June 30, 2004 Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. Douglas N. Henderer 3 spec
Plan June 30, 2004
Rifle Area Gathering Facilities Eneana Oil & Gas (USA) Inc. This Page Intentionally Blank. 4 spec Plan June 30, 2004
1.6 Plan History This plan supercedes all plans listed in the following table: Plan Name Date Created 1. 2. 3. 4. S. 6. 7. 8. 1.7 Plan Review and Amendments (40 CFR 112.5) In accordance
with 40 CFR 112.5(b), a review and evaluation ofthis SPCC plan is conducted at least once every five years. As a result of this review and evaluation, Encana Oil & Gas (USA) Inc. will
amend the plan to include more effective spill prevention and control technology if: I) Such technology will significantly reduce the likelihood of a spill event from the facilities,
and 2) If such technology has been field-proven at the time of the review. Technical amendments to this SPCC plan shall be certified by a Registered Professional Engineer within six
months ifmodifications to the facility materially affect the potential for discharges of oil into or upon navigable waters. Modifications which may require plan amendments and certification
include: I) Commissioning or decommissioning of containers; 2) Replacement, reconstruction, or movement of containers; 3) Reconstruction, replacement or installation of piping systems;
4) Construction or demolition actions that may alter secondary containment structures; 5) Changes in products or type of equipment service; or 6) Changes in operating and maintenance
procedures. Administrative or non-technical amendments do not require the certification of a Registered Professional Engineer. Examples of administrative changes include, but are not
limited to, phone numbers, name changes, or any non-technical text revisions. Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 5 spec Plan June 30, 2004
Rifle Area Gathering Facilities Eneana Oil & Gas (USA) Inc. This Page Intentionally Blank. 6 spec Plan June 30, 2004
1.7.1 Review Summary Original Date of Plan: June 30, 2004 By my signature below, I attest that I have completed a review and evaluation of this SPCC plan for the Rifle Area Gathering
Facilities. Review Signature Printed Title Plan Date Name Amended (YeslNo) 1. 2. 3. 1.7.2 Amendment Summary Amendments to this plan are required whenever there is a change in facility
design, construction, operation or maintenance which materially affects the facility's potential for the discharge of oil into or upon navigable waters of the United States. Such amendments
shall be implemented as soon as possible, but no later than six months after such changes occur. This SPCC plan for the Rifle Area Gathering Facilities has been amended as follows. Amendment
Purpose and Amendment Date Description of Type Amendment (Administrative or Technical) 1. 1128/05 Revised Designated Person Accountable for Administrative Oil Spill Prevention and Technical
Revised EnCana Notification list Added the Logan Wash Compressor Station Revised the East Mamm Compressor Station 2. 217105 Added Pad 9 location Technical 3. 5/23/05 Revise office address
and add Middlefork Administrative location and Technical 4. 8112/05 Revised Middlefork and East Mamm Administrative Creek Compressor Stations. Updated and Technical contact information
. . Note: P. E. certIficatIOn IS not reqUIred for admmlstrahve amendments . Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 7 Amendment Certified by P.E. (YeslNo) Yes Yes
Yes Yes SPCC Plan June 30, 2004
Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. This Page Intentionally Blank. 8 spec Plan June 30, 2004
1.7.3 Amendment Certification (40 CFR 112.5 (c)) First Technical Amendment J hereby attest that: 1) 2) 3) 4) 5) Date: 1/28/05 Second Technical Amendment I hereby attest that: I) I am
familiar with the provisions of 40 CFR Part 112; 2) I, or my agent, have visited and examined the facilities; fessional Engineer 3) This SPCC Plan has been amended in accordance with
good engineering practice, including consideration of applicable industry standards, and with the requirements of 40 CFR 112; 4) Procedures for required inspections and testing have
been established, and 5) This plan is adequate for the subject facilities. Date: ___ ~2,."1.1..!7/-,,,05~ __ Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 9 spec Plan February
7,2005
1.7.3 Amendment Certification (40 CFR 112.5 (c)) Continued Third Technical Amendment I hereby attest that: I) I am familiar with the provisions of 40 CFR Pm1 112; 2) I, or my agent,
have visited and examined the facilities; 3) This SPCC Plan has been amended in accordance with good engineering practice, inclnding consideration of applicable industry standards, and
with the requirements of 40 CFR 112; 4) Procedures for required inspections and testing have been established, and 5) This plan is adequate for the subject facilities. Date: 5/23/05
Fourth Technical Amendment I hereby attest that: I) I am familiar with the provisions of 40 CFR Part 112; 2) I, or my agent, have visited and examined the facilities; 3) This spec Plan
has been amended in accordance with good engineering practice, including consideration of applicable industry standards, and with the requirements of 40 CFR 112; 4) 5) Procedures for
required inspections and testing have been established, and This plan is adequate for the subject facilities. ._,._ 4~1:S::;:;" '-'.~~::::l:'qk,ri'> Date: 01;11"2/05 i I Rifle Area Gathering
Facilities Eneana Oil & Gas (USA) Inc. 10 tp' '\..)") hcG'/), -:{}::,\ las Q':6~.det~b<-:<:' x'. spec Plan May 23, 2005
2.0 SPILL PREVENTION AND CONTROL 2.1 Facility Conformance (40 CFR 112.7(a)(I) and (2» The subject facilities are in conformance with 40 CFR 112 as amended on July 17,2002 with the following
exceptions noted below. The reason for any nonconformance and the provided equivalent environmental protection measures are also noted. Conformance Reason for Deviation Nonconformance
Lighting is nOl provided as The lack of electrical power at the facility specified in Ill.7(g) at the makes lighting impracticable. Sandhills Compressor Station Fencing is 110t provided
as The site is not owned by EnCana. The specified in 112.7(g) at Divide constn.lction of fencing is the Creek Compressor Station. responsibility of the current land owner. Fencing would
restrict emergency egress from the facility. Fencing is not provided as Fencing at the tank battery would result in specified in 112.7(g) for the an undue safety hazard for condensate
tank battery at Pumba transport trucks traveling during adverse Compressor Station road conditions. Truck loading and unloading Secondary containment for loading and areas are not provided
with a unloading areas is not practicable. catchment basin or other means Containment stmctures would interfere of secondary containment as with normal operations and the collection
specified by 112.7(h) of stonnwater would create unsafe conditions Piping is not provided with a Construction techniques utilized tor these means of secondary containment facilities
make secondary containment for as specll1ed by I 12.8 piping impracticable. Separation equipment are not Secondary containment for separation provided with a means of equipment is not
practicable as dikes or secondary containment as trenches can trap explosive and toxic specified by 112.8(c)(2). gases creating a safety hazard and would also interfere with access required
for normal operations. Drainage from undiked areas is Secondary containment for undiked areas not confined in a catchment is not practicable. The collection of basin or holding pond
as stormwater would create unsafe snecified b 112.8fb)(3t conditions. Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. II Equivalent Environmental Protection Measures The
operator has implemented an oil spill contingency plan and a written commitment of manpower. The facility is visited on a frequent basis and any spills or accidental releases of oil
are promptly cleaned up by the operator. The operator has implemented an oil spill contingency plan and a written commitment of manpower. The faciHty is visited on a frequent basis and
any spills or accidental releases of oil are promptly cleaned up by the operator. A locked gate restricts vehicle access. The operator has implemented an oil spill contingency plan and
a written commitment of manpower. The facility is visited on a frequent basis and any spills or accidental releases of oil are promptly cleaned up by the operator. A locked gate restricts
vehicle access to the tank battery. All loading and unloading operations are attended by the driver and conducted in accordance with DOT regulations. In addition, the operator has implemented
an oil spill contingency plan and a written commitment of manpower. The operator has also implemented a Crude Oil Loading Policy, which is outlined in Section 5 of this document The
operator has implemented an oil spill contingency plan and a written commitment of manpower. The facility is visited on a frequent basis and any spills or accidental releases of oil
are promptly cleaned up by the operator. The operator has implemented an oil spIll contingency plan and a written commitment of manpower. The facility is visited on a frequent basis
and any spills or accidental releases of oil are promptly cleaned up by the operator. The operator has implemented an oil spill contingency plan and a written commitment of manpower.
The facility is visited on a frequent basis and any spills or accidental releases of oil are nromntlv cleaned up bv the operator. spec Plan June 30, 2004
2.2 Facility Physical Layout (40 CFR 112.7 (a)(3)) The subject properties are typical onshore crude oil and/or natural gas central facilities consisting of separation and processing
equipment including bulk storage containers. A diagram of each subject facility is located in Appendix F. The following details and location infonnation, as applicable, is included on
the diagram: 1) Containers and their contents; 2) Tanker Truck Loading and Unloading Areas 3) Completely buried and/or bunkered tanks including underground storage tanks subject to 40
CFR Part 280 or 281; and 4) Drum and portable container storage areas. 2.3 Drainage Pathways and Distances to Navigable Waters Drainage pathways proximate to the subject facilities and
USGS topographic maps forthe area are contained in Appendix F. Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 12 SPCC Plan June 30, 2004
2.4 Applicable Industry Standards (40 CFR 112.3) The design. construction, operation and maintenance of the subject facilities are to be conducted in conformance with the following industrial
standards as applicable. Facility Component Applicable Industry Standards Secondary Containment API Standard 2610 -Design, Construction, Operation, Maintenance and Inspection of Terminal
and Tank Facilities. API Recommended Practice 51 -Onshore Oil and Gas Production Practices for Protection of the Environment. NFPA 30 -Flammable and Combustible Liquids Code BOCA -National
Fire Prevention Code Loading and Unloading API Standard 2610 -Design, Construction, Operation, Maintenance and Areas Inspection of Terminal and Tank Facilities. NFPA 30 -Flammable and
Combustible Liquids Code Diked Area Drainage API Standard 2610 -Design, Construction, Operation, Maintenance and Inspection of Terminal and Tank Facilities. API Recommended Practice
51 -Onshore Oil and Gas Production Practices for Protection of the Environment. NFPA 30 -Flammable and Combustible Liquids Code Storage Tank Construction API Standard 620 M Design and
Construction of Large Welded Low Pressure and Materials Storage Tanks. API Standard 650 -Welded Steel Tanks for Oil Storage. STI F911 -Standard for Diked Aboveground Steel Tanks STI
Publication R931 -Double Wall Aboveground Storage Tank Installation and Testing Instructions. UL Standard 142 -Steel Aboveground Tanks for Flammable and Combustible Liquids. UL Standard
13]6 -Standard for GlassMFiberMReinforced Plastic Underground Storage Tanks for Petroleum Products. PEl Recommended Practice 200 M Recommended Practices for Installation of Aboveground
Storage Systems for Motor Vehicle Fueling Facility Equipment API Specification 12 B -Bolted Tanks for Storage of Production Liquids API Specification 12 D -Field Welded Tanks for Storage
of Production Liquids API Specification 12 F M Shop Welded Tanks for Storage of Production Liquids API Specification 12 J -Oil Gas Separators API Specification 12 K -Indirect-Type Oil
Field Heaters API Specification 12 L -Vertical and Horizontal Emulsion Treaters Corrosion Protection for NACE Recommended Practice 0169 -Control of External Corrosion on Buried Piping
Underground or Submerged Metallic Piping Systems. STI Recommended Practice 892 -Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage
and Dispensing Systems. Rifle Area Gathering Facilities spec Plan Encana Oil & Gas (USA) Inc. June 30, 2004 13
Facility Component Applicable Industry Standards Inspection Procedures API Recommended Practice 12RI -Recommended Practice for Setting, Maintenance, Inspection, Operation, and Repair
of Tanks in Productions Service. API Recommended Practice 510 -Alternative Rulse for Exploration and Production Pressure Vessels. API Standard 574 -Inspection Practices for Piping Sytems.
API Standard 653 -Tank Inspection, Repair, Alteration, and Reconstruction. Inspection and Testing of API Standard 570 -Piping Inspection Code. Piping and Valves API Recommended Practice
574 -Inspection Practices for Piping System Components. ASME B31.3 -Process Piping ASME 31.4 -Liquid Transportation Systems for Hydrocarbons, Liquid Petroleum Gas, Anhydrous Ammonia,
and Alcohols. Secondary Containment API Recommended Practice 52 -Land Drilling Practices for Protection of the for Drilling and Workover Environment. Operations NFPA 30 -Flammable and
Combustible Liquids Code BOCA -National Fire Prevention Code Integrity Testing API Standard 653 -Tank Inspection, Repair, Alteration, and Reconstruction. API Recommended Practice 575
-Inspection of Atmospheric and Low-Pressure Tanks. API Standard 570 -Piping Inspection Code ASME B3I.3 -Process Piping ASME 31.4 -Liquid Transportation Systems for Hydrocarbons, Liquid
Petroleum Gas, Anhydrous Ammonia, and Alcohols. STI Standard SPOOI-OO -Standard for Inspection ofin-Service Shop Fabricated Aboveground Tanks for Storage of Combustible and Flammable
Liquids UL Standard 142 -Steel Aboveground Tanks for Flammable and Combustible Liquids. Brittle Fracture Evaluation API Standard 653 -Tank Inspection, Repair, Alteration, and Reconstruction.
API Recommended Practice 920 -Prevention of Brittle Fracture of Pressure Vessels. Note: API -American Petroleum Institute ASME -American Society of Mechanical Engineers BOCA -Building
Officials and Code Administrators International NACE -National Association of Corrosion Engineers NFPA -National Fire Protection Association PEl -Petroleum Equipment Institute STI -Steel
Tank Institute UL -Undenvriters Laboratories 2.S Contact List and Phone Numbers (112.7 (a)(3-S)) Lists of contact names and phone numbers for Encana Oil & Gas (USA) Inc. personnel, company
approved cleanup contractors, and federal and state agencies are contained in Appendix A. Also included in Appendix A are forms to be used for organizing release notification information
and the submission of required information to the EPA Regional Administrator for qualified discharges. Rifle Area Gathering Facilities Eneana Oil & Gas (USA) Inc. 14 spec Plan June 30,
2004
2.6 Spill Prediction and Control (40 CFR 112.7 (a) and (b)) Equipment located at the subject facilities with the potential to accidentally release oil are specifically addressed by location
in Appendix F. The reasonably expected modes of major failure or accident for which oil could be released from the facilities are as follows: A. Bulk Storage Tank Leak or Failure I.
Failure Modes: Corrosion. vandalism, lightening strikes, valve or piping failure, overfilling. II. Rate of Flow: Variable, depending upon the type, size and location of the tank failure.
The ambient temperature at the time of the release may effect the viscosity of the oil and thereby impact the rate of flow. Flow rates for corrosion failure are typically low, ranging
from less than a gallon per day to a gallon per hour. Flows resulting from valve and piping failures or vandalism typically range from a gallon per hour to 400 bbls per hour. Lightning
strikes may result in a release that is essentially instantaneous. III. Discharge Quantity: Variable depending upon the type and location of the failure. The total quantity discharged
would not exceed the working capacity of the largest tank. IV. Preventative Measures: Storage tanks are constructed in accordance with API industry standards. Materials used in constructing
the tanks are compatible with the substances stored. Where practicable, earthen berms or other diversionary structures are utilized to control any released fluids. Tanks are appropriately
sized to minimize the risk of overfilling. B. Tanker Truck Loading and Unloading Operations I. Failure Modes: Piping or valve failure, tank failure, overflow, and human error. II. Rate
of Flow: Variable depending upon the type, size and exact location of the failure, and the amount of oil in the tanker truck and storage tank. The ambient temperature at the time of
the release may effect the viscosity of the oil and thereby impact the rate of flow. Flow rates resulting from piping and valve failures can range from 1 gallon per hour up to 400 bbls
per hour. The flow rate for tank truck overflows typically will not exceed 5 to 10 bbls per minute. Tank failures may result in releases that are essentially instantaneous. Rifle Area
Gathering Facilities Encana Oil & Gas (USA) Inc. 15 spec Plan June 30, 2004
III. Discharge Quantity: Variable depending upon the type and location of the failure. The total quantity discharged would not exceed the working capacity ofthe largest tank. IV. Preventative
Measures: Tanker truck loading and unloading operations are conducted in accordance with United States Department of Transportation regulations (49 CFR 177). All loading operations are
attended by the truck driver. No smoking or open flames are allowed in the vicinity ofthe storage tanks and loading area. Wheel chocks are placed at the wheel nearest the truck loading
connection to reduce the risk of the truck movement during loading operations. Following the completion of loading operations, the transfer line is disconnected and all valves and outlets
on the tanker truck and the storage tank are visually inspected for leakage prior to vehicle departure. C. Process Unit Failure (Separator/Heater Treater/Gun Barrel) I. Failure Modes:
Process vessels may potentially rupture, or associated lines, valves and gauges may fail or leak. II. Rate of Flow: Variable, depending upon the mode and extent of the failure. The maximum
expected rate of flow from a process unit failure is the oil process rate ofthe equipment plus any additional fluid volume contained in the vessel above the elevation of the rupture.
The oil process rates for the subject equipment are contained in Appendix F. Ill. Discharge Quantity: Variable, depending on the type of failure and the length of time that the failure
went undetected. VI. Preventative Measures: Process units are constructed in accordance with API and ASME industry standards. Where practicable, earthen berms or other diversionary structures
are utilized to control any released fluids. D. Piping Failure I. Failure Modes: Both aboveground and buried pipelines may rupture or corrode and leak. Associated flanges, screwed connections,
valves and gauges are also subject to corrosion and may fail or leak. II. Rate of Flow: Variable, depending on the size and location of the piping related failure. The maximum potential
rate of flow is not expected to exceed the oil process rates as listed in Appendix F. III. Discharge Quantity: Variable depending upon the type and extent of the failure and the length
of time that the failure went undetected. Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 16 spec Plan June 30, 2004
IV. Prevention Measures: Personnel routinely perform visual inspections of aboveground piping and buried flowline right-of-ways to detect failures. As warranted by soil conditions, corrosion
protection is provided for buried pipelines. E. Compressor Engine Oil Sump Failure I. Failure Modes: Corrosion, vandalism, valve or piping failure, overfilling, mechanical damage to
sump. II. Rate of Flow: Variable, depending upon the type, size and location of the failure. Flow rates for corrosion failure are typically low, ranging from less than a gallon per day
to a gallon per hour. Flows resulting from valve and piping failures or vandalism typically range from a gallon per hour to instantaneous. Mechanical damage to the engine sump may result
in a release that is essentially instantaneous. III. Discharge Quantity: Variable depending upon the type and location of the failure. The total quantity discharged would not exceed
the working capacity of the oil sump. IV. Where practicable, floor drains, containment structures or sorbent materials are utilized to control releases oflubricating oil. Oil changes
are attended to prevent accidental spills of used and unused oils. Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 17 spec Plan June 30, 2004
2.7 Impracticable Containment or Diversion Measures (40 CFR 112.7 (d)) In some instances, containment, diversionary structures, or equipment to prevent oil from reaching navigable waters
may not be practicable. Secondary containment is provided for equipment located at the subject facilities as indicated in Appendix F. Secondary containment or diversionary structures
may be impracticable for some equipment at these facilities for the following reasons: . Extensive diking and/or drainage trenches would interfere with site access for normal operations
and also with current surface land use. An effective dike system would be difficult to design and to construct. Damage to vegetation and potential erosion due to construction of dikes
would probably be worse than the risk adjusted environmental impact of a spill. It would also be difficult to maintain dike integrity and to drain off rain water. Flowlines operate at
pressures far below the rated working pressure and therefore have a minimal risk of rupture. Berms, trenches and other means of containment can trap explosive gases such as methane and
hazardous vapors such as hydrogen sulfide leading to potential safety and exposure problems. The berms or diversions would trap stonnwater and cause muddy conditions which in turn can
create slippery unsafe working conditions. Trapped water may also increase the rate of corrosion. Other: ____________________________________________________ _ Rifle Area Gathering Facilities
Eneana Oil & Gas (USA) Inc. 18 spec Plan June 30, 2004
2.8 Oil Spill Contingency Plan and Commitment of Manpower (40 CFR112.7 (d)(l) & (2» Encana Oil & Gas (USA) Inc. maintains a strong contingency plan for oil spills and a written commitment
of manpower follows. Encana Oil & Gas (USA) Inc. is committed to a strong antipollution and spill prevention program. We are committed to designing and operating our facilities in a
manner that will minimize the size and occurrence of spills. We are committed to a strong, pro-active training and inspection program that will insure that our facilities are operated
and maintained in a manner that will prevent or minimize the occurrence of spills. In the event of a spill, Encana Oil & Gas (USA) Inc. will commit the manpower, equipment and materials
necessary to ensure that the clean up occurs in the shortest practical time while minimizing environmental damage and maximizing product recovery. 2.9 Discharge Countermeasures and Methods
of Disposal (40 CFR 112.7 (a)(3)(iv)&(v» In the event of an accidental release, Eneana Oil & Gas (USA) Inc. personnel will promptly initiate recovery actions as appropriate. Levels of
Response Major Releases: Major releases are defined as: I) Spills of crude oil, condensate, or saltwater greater than 10 bbls, or 2) Spills of refined crude oil products, including but
not limited to, gasoline, diesel fuel, aviation fuel, asphalt, road oil, derosene, fuel oil, and derivative of mineral, animal or vegetable oils, or 3) Any volume of oil which results
in a fire, will reach a water course, or may with reasonable probability endanger public health or result in substantial damage to property or the environment. Major releases will be
handled under the direction of Eneana Oil & Gas (USA) Inc. personnel. Response contractors listed in Appendix A will be utilized as necessary to complete the clean up. If oil should
threaten surface waters, the company contingency plan will be implemented. Containment structures would be constructed and booms would be deployed as needed to protect waterways. Minor
Releases: Releases not classified as major shall be reported internally to the appropriate supervisor on an incident report. Rifle Area Gathering Facilities spec Plan Eneana Oil & Gas
(USA) Inc. June 30, 2004 19
Product Recovery and Handling Spills onto Soil Mobile oil spills should be contained as soon as possible by the construction of earthen dams or by the placement of mechanical barriers.
Free oil may be removed from the ground by the use of a vacuum truck. Sumps or trenches may be dug to intercept or drain free oil. Remaining free oil may be removed from the ground by
the use of oil-absorbent materials. When all free oil has been removed, the affected soil containing over 1.0% total petroleum hydrocarbon (TPH) by weight should be delineated, both
vertically and horizontally. All soil containing over 1.0% TPH should then be excavated by backhoe or similar appropriate equipment for remediation or disposal. To prevent stormwater
contamination, all impacted soils containing in excess of 1.0% TPH should placed in an approved disposal site or in a secure interim storage location for future remediation or disposal,
unless more immediate on-site techniques and be implemented. Placing the impacted soil on a sheet of visquene and providing appropriate cover, diking, or stormwater diversions, IS acceptable.
A final cleanup level of 1.0% TPH should be achieved as soon as practicable. Several methods are acceptable for the cleanup of oil contaminated soil; regulatory agencies may specitywhich
methods are appropriate. Spills onto Water Oil spills onto surface waters must be cleanse up to the satisfaction of the landowners and regulatory agencies. The spill should be contained
as soon as possible by the use of floating booms or other mechanical barriers. Free oil may be removed from the water by the use of a vacuum truck or by oil-skimming equipment. Remaining
free oil may be removed from the water by the use of oilabsorbent materials such as spray-sorb. Oil-absorbent materials may also be used to remove oil that has accumulated on shoreline
soils, rocks and vegetation. Oil contaminated shoreline materials may require removal to a suitable treatment site for cleanup as described above. Rifle Area Gathering Facilities Eneana
Oil & Gas (USA) Inc. 20 spec Plan June 30, 2004
2.10 Regulatory Conformance The subject properties are not subject to any state regulated discharge prevention and containment requirements beyond those specified by federal regulation.
2.11 Regulatory Exclusions The subject properties are classified as onshore non-production facilities which store only petroleum based oils. Furthermore, the properties are not expected
to cause substantial harm to the environment as demonstrated by the completed Certification of Substantial Harm Determination form contained in Appendix E. As such, the subject properties
are excluded from the following regulations: Subpart B -Requirements for Petroleum Oils and Non-Petroleum Oils except Animal Fats ... 40 CFR 112.9 SPCC plan requirements for onshore
oil production facilities 40 CFR 112.10 SPCC plan requirements for onshore drilling & workover facilities 40 CFR 112.11 SPCC plan requirements for offshore oil facilities Subpart C -Requirements
for Animal Fats and Oils, Greases, Fish and Marine Oils .... 40 CFR 112.12 SPCC plan requirements for onshorefacilities (excluding production) 40 CFR 112.13 SPCC plan requirements for
onshore oil production facilities 40 CFR 112.14 SPCC plan requirements for onshore oil drilling facilities 40 CFR 112.15 SPCC plan requirements for offshore oil drilling facilities Subpart
D -Response Requirements 40 CFR 112.20 Facility response plans 40 CFR 112.21 Facility response training and drills/exercises Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc.
21 spec Plan June 30, 2004
Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. This Page Intentionally Blank. 22 spec Plan June 30, 2004
3.0 INSPECTIONS, TESTING AND TRAINING 3.1 Inspections and Testing (40 CFR 112.7 (e» Written procedures are available and utilized when performing prescribed inspections and testing of
equipment. Records of inspections and tests are to be signed by the appropriate supervisorlinspector and maintained at the local office. The following items are inspected to minimize
oil discharges from occurring; tanks for leaks and corrosion, process units for leaks and corrosion, sight glasses for leaks, pumps for leakage around packing glands, lines for leaks
around fittings, flowlines for leaks, and metering stations for leakage. If problems are identified, prompt action is taken for repairs. A record of inspection is to be kept with the
SPCC Plan for at least 3 years. A copy of the inspection form is included in Appendix B. 3.1.1 Scheduled Examinations The lease operator, in the course of their normal routine, is responsible
for examining the facilities covered by this SPCC Plan. This periodical review is to insure that the facilities are operating properly and that no problems exist. In addition to periodical
observations made by lease personnel in their routine activities, a formal documented inspection of the facilities will be conducted on an annual basis to insure that the facilities
are in compliance with the SPCC Plan. Following are general procedures for conducting the formal examinations. There may be specific items covered in the Plan that are specific to a
facility and may not be covered by these general guidelines. Conversely, certain items covered by these procedures may not apply to every facility. The attached SPCC Inspection Form
(Appendix B) is to be used to document the periodic examinations. THE FOLLOWING ITEMS (if present) MUST BE INSPECTED: Ditches and Waterways Drainage ditches in and around the facility
and within the field, roadside ditches, water courses, ponds, etc. will be inspected for oil accumulations and/or evidence of saltwater spills. Above Ground Piping Flowlines, injection
lines, gathering lines, gas lift lines, and other piping in and around batteries, separation facilities, saltwater handling facilities, etc. will be inspected for leaks, evidence of
leaks, and evidence of potential leaks. Lines along roads will be inspected while driving through the field. Other above ground lines will be walked periodically. Rifle Area Gathering
Facilities Encana Oil & Gas (USA) Inc. 23 spec Plan June 30, 2004
Tanks Berms All liquid storage tanks, except fresh water tanks, (including crude oil, saltwater, glycol, methanol, fuel, treatment chemicals, lube oil, etc,) and associated piping will
be visually inspected for leaks, overflows, and signs of potential problems, Special emphasis will be placed on the inspection of foundations, bottom seams, patches, flanges, piping
connections, sight-glasses, and other openings, Valves should be in their proper position and locked or sealed, if required, Earthen berms will be inspected for adequate capacity, erosion
and leaks, Cement firewalls will be inspected for leaks, cracks, or other signs offailure, Accumulations ofliquid will be removed from the firewalL If the liquid is from one of the tanks,
the source will be found and repaired, Rainwater will be removed as soon as feasible after rain, Ifa firewall is equipped with a drain, the drain MUST be closed, sealed and locked when
not in use, The drain must be manned whenever it is in use, Each drainage event must be recorded, The Drainage Log contained in Appendix C will be used for this record, Line Heaters,
Separators, Heater Treaters and Glycol Units Pits These pieces of equipment should be visually inspected for leaks, especially around valves, fittings, inspection plates and sight glasses,
Vents on glycol units should be inspected for excessive liquid carryover. Glycol still vents must discharge into an appropriate container, not onto the ground, Pits must be empty except
when in use and must be kept free from oiL Any accumulation of rainwater or produced fluids must be removed from the pit and properly disposed, Pit Liquid Level When in use, the liquid
level must not be within one (I) foot of overflowing, Liquid hydrocarbons shall not accumulate in a pit. Sumps, Sump Level Controls and Slimp Pumps Drains The sump system should be checked
to insure that the liquid level is acceptable and to insure that it is operating properly, Drains should be inspected for blockage and accumulation of debris that would impede the free
flow of liquids, Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc, spec Plan June 30, 2004 24
Chemical Storage Tanks, Pumps and Piping Chemical injection systems should be inspected for leaks, especially around storage tanks, pumps and fittings on tubing or piping. Lube Oil Systems
Lube oil storage tanks and the piping systems should be inspected, especially around tanks, pumps and fittings on the piping or tubing. Flare System Any liquid handling system associated
with a flare system, liquid knock-outs, etc., should be inspected. The flare ignition system should be checked periodically. Any evidence ofliquid carryover should be reported and corrective
action to prevent reoccurrence implemented. If liquid carryovers are frequent, containment should be constructed to contain the carryover. Drain Paus or Drip Pans The liquid level in
drip or drain pans should be checked and emptied as necessary. Pressure Relief Valves Pressure relief valves should be checked for leaks, evidence of leaks and signs of failure. Plant
Process Heaters Plant process heaters should be checked for leaks, evidence of leaks and signs of failure. The stack should be checked for visible smoke emissions. Alarm Systems All
alarm systems should be tested periodically for proper function. Rainwater Removed from Berms All discharges of rainwater from berms to drainage MUST BE RECORDED. The date of discharge
must be noted on the Drainage Log contained in Appendix C. Prior to discharge, the water must be visually inspected for the presence of oil and tested for the presence of saltwater.
If either is present, the water cannot be discharged and must be disposed of in a permitted disposal system or other acceptable manner. Rifle Area Gathering Facilities Encana Oil & Gas
(USA) Inc. 25 spec Plan June 30, 2004
3.1.2 Scheduled Iuspectious Comprehensive inspections of oil containing equipment are to be performed at each facility. These inspections must be conducted by a qualified inspector in
accordance with the standards listed below. The inspections are to be documented using the checklists contained in Appendix B and the records maintained at the appropriate field office.
Ifproblems are identified, appropriate corrective actions are to be implemented and noted on the inspection form. Equipment Inspection Standard Bulk Storage Tanks API RP 12Rl -Recommended
Practice for Setting, Maintenance, Inspection, Operation, and Repair of Tanks In Production Service Pressure/Process Vessels API RP 510 -Alternative Rules for Exploration and Production
Pressure Vessels Piping API 574 -Inspection Practices for Piping System Comoonents 3.1.3 Testing Procedures (40 CFR 112.7 (d» When conditions make it impracticable to provide secondary
containment, periodic integrity testing will be conducted for affected storage containers, separation equipment and associated valves and piping. The following industrial standards for
conducting integrity tests will be utilized as appropriate. Industrial Testing Standard API Standard 653 API Recommended Practice 575 API Standard 570 API RP 510 ASME B31.3 ASME 31.4
Steel Tank Institute Standard SPOOI-OO UL Standard 142 Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. Title Tank Inspection, Repair, Alteration, and Reconstruction Inspection
of Atmospheric and Low-Pressure Tanks Piping Inspection Code Production Pressure Vessels Process Piping Liquid Transportation Systems for Hydrocarbons, Liquid Petroleum Gas, Anhydrous
Ammonia, and Alcohols Standard for Inspection of In-Service Shop Fabricated Aboveground Tanks for Storage of Combustible and Flammable Liquids Steel Aboveground Tanks for Flammable and
Combustible Liquids 26 SPCC Plan June 30, 2004
3.1.4 Brittle Fracture Evaluation (40 CFR 112.7(i)) All field constructed aboveground tanks and process equipment are to be evaluated for the risk of failure due to brittle fracture
whenever: I) The equipment undergoes repair, alteration, reconstruction, or a change in service that may affect the risk of a discharge or failure due to brittle fracture, or 2) The
equipment has discharged oil or failed due to brittle fracture failure or other catastrophe. The brittle fracture risk evaluation is to be conducted in accordance with the following
industrial standards as appropriate. I) API Standard 653 -Tank Inspection, Repair, Alteration, and Reconstruction. 2) API Recommended Practice 920 -Prevention of Brittle Fracture of
Pressure Vessels. 3.2 Personnel Training and Discharge Prevention Procedures (40 CFR 112.7 (I)) I) Personnel are properly instructed in the following: a) Proper operation and maintenance
of equipment to prevent oil discharges, b) Discharge procedure protocols, c) Applicable oil spill prevention laws, rules and regulations, d) General facility operations, and e) The contents
of facility SPCC plans and applicable pollution control laws, rules, and regulations. Company and contract personnel attend in-house compliance awareness programs on a periodic basis.
Compliance awareness briefings are conducted at least once per year to assure continued understanding ofthe applicable SPCC plans. In addition, spill related topics are discussed at
safety meetings. Safety meeting topics include: spill control equipment; equipment operation and maintenance; inspection of containment structures, vessels, tanks and piping; spill response,
containment and clean up; company policies on reporting and responding to spills; and specific SPCC Plans. 2) For the subject facilities, the designated person accountable for oil discharge
prevention is: Name: Dewey Neely Title: Construction Coordinator Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 27 SPCC Plan June 30, 2004
3) Scheduled prevention briefings for the operating personnel are conducted on a periodic basis to assure adequate understanding of the SPCC Plan. The briefing program is as follows:
A SPCC compliance awareness program is presented on an annual basis. The program includes a review of specific SPCC Plans, updates on state and federal regulations, company policy and
procedures, and spill reporting. Additional short briefing sessions are held as needed before and during certain jobs to review spill potential, necessary precautions and appropriate
responses. Also, included in the briefing is a review of known spill events or failures, malfunctioning components and recently developed precautionary measures. A copy of the Training
Record Form is attached in Appendix D. 4) Contractors working at the facilities are instructed as follows: I) Pollution control will be maintained at all times in connection with all
operations by the contractor. Encana Oil & Gas (USA) Inc. personnel will be notified immediately of any emitting, spilling, venting, discharging, disposal or loss of any hazardous or
harmful substances, air contaminants andlor pollutants of any nature (referred to as discharges). 2) Ifany discharges occur as a result of the performance of work by the contractor,
its agents, employees and subcontractors, or other persons for whom the contractor is responsible, the contractor will immediately proceed to stop or abate such discharges. 3) The contractor
will comply with any and all local, state and federal laws, regulations, standards and orders applicable to the controlling and prevention of discharges. 4) Contractors will install
and maintain adequate discharge control equipment on or about their plant, rig or other equipment to prevent discharges, in violation of any local, state and federal laws, regulations,
standards and orders. Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 28 spec Plan June 30, 2004
4.0 FACILITY SECURITY (40 CFR 112.7(g» Encana Oil & Gas (USA) Inc. is committed to the prevention of oil releases by acts of vandalism. The following security measures are utilized at
compression and processing facilities. I) Each facility handling, processing or storing oil is fully fenced. Entrance gates are locked when the facility is unattended. 2) All valves,
including master and drain valves, that allow for the direct flow of oil from a container to the surface, are secured in the closed position when not in operation. 3) When not in operation,
controls for oil pumps will be locked in the "off' position. Pump controls are located at sites accessibly only by authorized personnel. 4) Loading and unloading oil pipelines will be
securely capped or blanked-flanged when not in service. 5) Where practicable, lighting is provided commensurate with the type and location of the facility. Rifle Area Gathering Facilities
Encana Oil & Gas (USA) Inc. 29 spec Plan June 30, 2004
Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. This Page Intentionally Blank. 30 spec Plan June 30, 2004
5.0 TRANSFER, PUMPING AND PROCESS OPERATIONS Piping at non-production facilities shall be constructed and maintained in order to prevent releases of oil. Specifically: I) Buried piping
installed or replaced on or after August 16, 2002 is provided with protective wrapping and coating and cathodically protected to prevent corrosion. 2) If a section of buried piping is
exposed, it is carefully inspected for corrosion. If corrosion is detected, additional examinations and corrective actions are undertaken as appropriate. 3) Loading lines are capped
or blanked-flanged when not in service. 4) All aboveground piping is provided with properly designed supports to minimize abrasion and corrosion while allowing for thermal expansion
and contraction. 5) All aboveground piping valves and appurtenances are inspected as detailed in Section 3 of this plan. 6) At the time of installation, modification, construction or
replacement of buried piping, integrity and leak testing are conducted. 7) Where there isa possibility that vehicles may endanger aboveground piping, warning signs are posted at the
facility entrance. 8) The operator has implemented the following Crude Oil Loading Policy: Policy Objectives: This policy provides safety and spill prevention rules to be observed by
crude oil transporters (Transporter) when they are loading crude oil or condensate from the production facilities of En Can a Oil & Gas (USA), Inc. (EnCana). Loading operations are defined,
as any time the load line valve of a stock tank or LACT unit is open to transfer crude oil or condensate to a transport truck. Policy Guidelines: Transporter should keep the stock tanks
clean of any drips or spills caused by gauging ofthe tanks. Crude oil sampling, BS& W, API gravity, and any other testing are to be done either before or after loading operations are
completed. Prior to the commencement of loading operations, the loading truck and the loading valve must be connected to a ground, and wheel chocks will be placed in proper position
to prevent vehicles from Rifle Area Gathering Facilities Encana Oil & Gas (USA) Inc. 31 spec Plan June 30, 2004
departing before complete disconnection of flexible or fixed oil transfer lines. In addition, before ti lIing and departure of any tank car or tank truck, Transport will closely inspectthe
lowermost drain and all outlets of such vehicles for discharges, and if necessary, ensure that they are tightened, adjusted, or replaced to prevent liquid discharge while in transit.
During the loading operations, the Transporter should stay out of the truck cab, except during adverse weather conditions, and in the immediate vicinity ofthe load valve, and tank trailer.
(During LACT loading, transporter must be stationed within 5-feet of the on/offswitch on the LACT unit.) Drip buckets and absorbent should be used to collect all drips and small spills
that may occur when connecting and disconnecting the loading line or hose. Transporter will provide the drip buckets and absorbent pads. When loading operations are completed and if
EnCana provides the hose, Transporter will place the load line or hose inside the proper container or cap the open hole and place it within the tank containment area. EnCana must be
notified promptly if a spill of crude oil or condensate occurs onto the ground surface. Ifa reportable spill has occurred, the Transporter should immediately shut the loading valve or
turn the LACT unit switch to off. EnCana must be telephoned immediately for spill notification. Transporter must describe the quantity, location, time of occurrence, and any other applicable
details to EnCana. Unless absolutely necessary, Transporter should not attempt to clean up the spill and should not disconnect the loading lines until a EnCana representative has inspected
the facility and has given his approval to proceed. When leaving a production facility, all gates must be secured and locked (if applicable) unless prior approval has been obtained from
an EnCana Operations Manager to leave a gate unlocked. All trash, refuse, and used absorbent pads that are generated by Transporter at EnCana production facilities will be removed from
the facility by Transporter and properly disposed when generated. Policy Implementation: It is the responsibility of En Can a' s Operations Manager to insure that this Policy is implemented.
Copies of this policy should be distributed to all Transporters of En Can a crude oil and condensate. The transporter will be instructed to inform their personnel of this policy and
its requirements. Rifle Area Gathering Facilities Eneana Oil & Gas (USA) Inc. 32 spec Plan June 30, 2004