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o All surficial activities performed by Chevron during production operation activities will be
protective of the environment. All vessels, totes, valves and flow lines associated with well
production activities will be inspected daily for damage or leaks while in service;
o Telemetric and automation technology will be utilized to monitor any variations in facility
pressures and fluid gauges which could indicate a leak and provide remote shut-in
capabilities of the facility in the event of any discharge or emergency;
o A dedicated Spill-Response trailer with spill containment equipment will be staged full time
at the SKR 698-10-BV well pad throughout well drilling activities and well completion
operations.
o The proposed activities will not utilize any pits. Fresh water will be temporarily stored in
the Harpoon MLVT (Modular Large Volume Tank) structure on the SKR 22-1 pad to the
south and will be covered to protect wildlife and treated for WNV larvae.
The complete Aquatic Resource Inventory Report for the SKR 698-10-BV drill pad is attached to
this Wildlife Mitigation Plan.
Operating Requirements
Pursuant to Rule 1202.a operating requirements, and the additional operating and mitigation
requirements in Rules 1201.b.(1)-(4), 1202 and 1203, Chevron commits to the following
Operational Requirements in protection of the OGDP SKR 698-10-BV drill pad environment.
1202.a. Operating Requirements
• Black Bear Habitat 1202.a.(1)- The proposed SKR 698-10-BV drill pad is not within black
bear habitat.
• Water Transportation 1202.a.(2)- Chevron will follow appropriate protocols for disinfecting
water collection and transportation equipment and thereby protecting any surface water
sources utilized by Chevron operations.
• Refueling/Chemical Storage Areas 1202.a.(3)- Deer Park Gulch is located approximately
150 feet south-southwest of the existing pad surface. As described above under Field
Hydrologic Review, a Professional Wetland Scientist (PWS) provided full hydrologic review
of surface waterway, wetlands, irrigation channel, and riparian areas potentially impacted
by the SKR 698-10-BV drill pad and operations (full reporting is attached to this plan).
Based on this detailed review, Chevron will be potentially situating new staging, refueling,
or chemical storage areas within 500 feet of the Ordinary High-Water Mark (OHWM) of
Deer Park Gulch. Chevron has requested a 1202.a.(3) Waiver from CPW and received
approval on 11/16/23.
• Wildlife Exclusions 1202.a.(4)- Chevron will implement appropriate wildlife exclusion
devices for drilling, completion and production operations. Chevron will not construct or
utilize drilling pits or production pits on location. Permanent medium or large volume
secondary containment structures are not anticipated for the project. However, fresh water
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may be stored on location or at an adjacent pad in Minion Tanks during well
drilling/completion activities. These tanks are completely netted to protect wildlife and are
treated for WNV and larvae control.
The following wildlife exclusion devices will be installed:
o Fencing may be installed and maintained around the pad perimeter following
drilling and completion activities and in coordination with surface landowner
preferences.
o Netting will be installed and maintained on all small-volume secondary
containment structures that may hold precipitation and liquids.
o Drip pans will have functional lids and be kept closed, when applicable.
o Bird exclusion devices will be installed on the vent stacks for all separation and
combustion devices, if applicable.
o All produced water and water collection vessels will be close-topped, and all
access ports will be sealed or netted.
o Administrative Controls- daily inspections and good housekeeping practices will
be followed for early prevention/detection of wildlife-related issues.
• Trenching 1202.a.(5)- Any flowline/pipeline trenches left open for more than five
consecutive days will have wildlife escape ramps at a minimum of one ramp per ¼ mile of
trench.
• Reclamation and Seed Mix 1202.a.(6)- While conducting interim and final reclamation
activities (pursuant to 1000 Series Rules), Chevron will use an appropriate seed mix
(mitigation seed mix for Elk habitat) when consistent with the Surface Owner’s approval
and any Soil Conservation District requirements.
• Fencing 1202.a.(7)- Chevron will use CPW-recommended fence designs when consistent
with the Surface Owner’s approval and any relevant Local Government requirements.
• Migratory Birds 1202.a.(8)- Chevron will conduct all vegetation removal necessary for Oil
and Gas Operations outside of the established nesting season for migratory birds (April 1-
July 31). For any vegetation removal activities performed between April 1 and July 31,
Chevron will conduct pre-construction nesting surveys within the proposed disturbance
area prior to vegetation removal. Should active nests be located, Chevron will establish
appropriate work zone buffers.
• West Nile Virus (WNV) and Mosquito Larvae Control 1202.a.(9)- Chevron will not utilize
drilling or production pits. However, fresh water may be stored on location in Minion Tanks
during well drilling/completion activities. These tanks are completely netted to protect
wildlife and are treated for WNV and larvae control.
• 1202.a.(10) Best Management Practices for activities in Proximity to Aquatic HPH
1202.c.(1).Q-S- Chevron is proposing activities within 500-1000 feet from 1202.c. Aquatic
HPH areas for the SKR 698-10-BV drill pad development. The pad is already constructed
and committed BMPs for proposed activities under this development are detailed in the
Field Hydrologic Review section.
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1201.b.(1)-(4) Operating and Mitigation Requirements
• (1) Pre-Application Consultation with CPW- Chevron has provided this document to CPW
for pre-application consultation for the SKR 698-10-BV drill pad, per Rule 309.e.. CPW
(Taylor Elm) was provided the document and its content on 11/7/23 and provided review
comments (incorporated into this version) and final plan approval on (11/13/23). CPW
review/approval documentation is attached to this submittal.
• In addition to this Wildlife Mitigation Plan and pursuant to Rule 304.b.(2).B.viii, an
Alternative Location Analysis (ALA) in the form of Chevron’s Wells Ranch Siting Rational
for SKR 698-10-BV appraisal well drill pad has been provided with the application packet.
Please reference the ALA document for specific locations and details.
• (2) Best Management Practices- The following BMPs are committed under this Wildlife
Mitigation Plan.
o Chevron will pre-clear all proposed disturbances according to CPW guidance
meeting Migratory Bird Treaty Act (MBTA), Bald and Golden Eagle Protection Act
(BGEPA) and Endangered Species Act (ESA) laws in protection of active nesting
activities, observe CPW/USFWS requested protected buffers for active nesting
species, and consult with CPW/USFWS as warranted.
o Chevron will install and maintain bird-deterrent devices on all open-vent exhaust
stacks on production equipment to discourage perching, roosting and nesting
activities.
o Employ Chevron’s Stormwater Management Program to protect soil resources,
minimize erosion, identify pollutants, apply pollutant control measures, and
conduct regular inspections.
o Although the project is using an existing pad, as necessary all interim and final
reclamation areas will be contoured and re-vegetated to a stable condition to
restore natural habitats for wildlife species.
o Chevron will meet weed management targets during construction, drilling,
production and reclamation lifecycles.
o Chevron commits to employ Noise, Light, Dust and Odor mitigation efforts meeting
ECMC Series 400 Rules in the protection of Wildlife Resources. A general
summary of wildlife BMP commitments under the Series 400 aesthetic rules and
incorporated by this WMP include:
Prior to the commencement of Drilling/Completion or Production
Operations, Chevron will take all necessary and reasonable precautions
to ensure that lighting, dust, noise and odor from the Oil and Gas
Location does not unnecessarily impact the health, safety, and welfare of
Wildlife occupying any High Priority Habitat within 2,000 feet of the Oil
and Gas Location. For permanent facilities this includes:
• Survey and document all active nests and dens potentially
impacted by production operations. Documentation will be
available for review.
• Conduct a daily walkthrough of the location to ensure no wildlife
have built nest(s) in/around lighting or noise sources. If nest(s)
are found, HSE reporting will be issued to appropriate personnel
to either remove the nest and/or temporarily abandon the lighting
source until nest is abandoned.
Inform and educate all field employees and contractors on wildlife
conservation practices, including no harassment or feeding of wildlife.
Utilization of telemetry equipment for remote monitoring to limit in-person
visitation by production operations personnel.
o Institute the Chevron safety program meeting Operational Excellence
Management System initiatives and “Stop Work” authority.
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o Construction of pipeline infrastructure to provide takeaway of oil, natural gas, and
fresh and produced water from the development, eliminating truck traffic and
emissions associated with hauling product from the oil and gas development and
limiting vehicle/wildlife interactions.
o Any encroachment of wetlands or active water ways potentially considered Waters
of the United States (WOTUS) will be reviewed and/or protected under USACE
Nationwide or General Permit processes.
1202.b. Flowline Mitigation-
Chevron will not encounter any aquatic HPH perennial streams that would require bore techniques
for flowline/utility line installation. CPW has reviewed the applicability of Rule 1202.c.(2).C and
concurred that flowline installation within the Aquatic Sportfish Management HPH buffer is
appropriate (10/25/23 concurrence from CPW attached to this document and flowline BMP
commitments are detailed under the SKR 698-10 BV Waiver Request, also attached).
1202.c. High Priority Habitat- No Surface Occupancy
The SKR 698-10-BV drill pad development does potentially lie within 1202.c. HPH within or offset
to its disturbance footprint. Chevron requested and received CPW waiver to Rule 1202.c.(1).S. for
proposed activity within the No Surface Occupancy (NSO) within 500 feet of the OHWM of Deer
Park Gulch designated as Sportfish Management Waters HPH. The waiver request approval is
attached to this WMP.
1202.d. High Priority Habitat- Density Exceeding One Per Square Mile
The development does lie within an area where Oil & Gas location densities exceed 1 per square
mile. The proposed SKR 698-10-BV drill pad lies within Elk Severe Winter Range (SWR)/Winter
Concentration Area (WCA) HPH.
In addition to the above committed mitigation measures, Chevron will commit to the following
mitigation efforts specific to Elk SWR/WCA as a 1202.d.(2) HPH.
o Chevron plans to schedule all construction, drilling, and completion activities outside of Elk
WCA protective timing stipulations (between April 16th and November 30th). If Chevron is
unable to complete all operations between April 16th and November 30th, the operator will
provide notice as soon as practical indicating that activities may be occurring within Elk
SWR/WCA season (December 1st thru April 14th) through direct communication with CPW.
Communication will include an estimated duration of the planned operations within the
HPH. Should Elk be identified in the area during construction activities, Chevron will have
a biologist on site periodically to monitor herd response and determine any potential
negative impacts from development activities and discuss with CPW any mitigation efforts
that could reduce these impacts.
o Chevron will limit the placement of extensive linear barrier features (i.e. fencing, surface
lines, berms) that may impact Elk movement and migration.
o Fencing used will be 3 or 4 strand to a maximum height of 42-inches.
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o Chevron will quickly excavate, install, and reclaim linear pipeline features that may impact
Elk movement and migration.
1203. Compensatory Mitigation for Wildlife Resources
The SKR 698-10-BV drill pad is within Elk SWR/WCA HPH.
1203.b. Direct Impacts Mitigation
Chevron anticipates that approximately 0.31 acres of long-term disturbance (following interim
reclamation) will be established by the SKR 698-10-BV drill pad development:
• SKR 698-10-BV drill pad – 0.21 acre initial disturbance for the construction of long-term
stormwater detention basins, with an existing pad disturbance of 6.16 acres; 0.10 acre for
additional access road construction (permanent disturbance); and a final post-interim
reclamation pad disturbance of 2.35 acres. Also, the existing pad will be slightly expanded
by 0.49 acres to allow inclusion of stormwater perimeter channels.
Temporary flowline construction is estimated at approximately 9.48 acres (approximately 3.02
acres in Aquatic HPH and the entire length in Elk SWR/WCA HPH) of temporary disturbance.
1203.c. Direct Impact Mitigation Fee Calculation
Chevron commits to the following compensatory mitigation for direct impacts to Elk SWR/WCA
HPH, associated with development of the SKR 698-10-BV well drill pad. Direct Impact Mitigation
Fees will be paid to CPW at least 30 days prior to submittal of Form 42 construction notification.
Established
Fee (since
<10.99 acres)
Proposed pad
disturbance acreage
(detention Basins
and slight expansion
to include perimeter
channels)
Access
Road
disturbance
acreage
Flowline
disturbance
acreage
Total
proposed
acreage
Total mitigation
costs
Temporary
disturbance 0.49 0.00 9.48 9.97
Permanent
disturbance 0.21 0.10 0 0.31
Total 0.70 0.10 9.48 10.28 $13,750.00
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1203.d. Indirect Impacts Mitigation
The proposed SKR 698-10-BV well drill pad is an existing pad with an existing access road. The
current use of this pad as an equipment storage area resulting in regular vehicle traffic and activity
on the site. It is not anticipated that the new wells on the pad will result in significantly increased
long-term indirect impacts. CPW has reviewed the need to off-set the unavoidable adverse indirect
impacts and decided that they will not recommend compensatory mitigation for the reasons
mentioned. If the winter seasonal timing limitation cannot be fully adhered to, Chevron will consult
with CPW regarding potential mitigation to off-set the one-time indirect impacts occurring from
development activities within the winter timing limitation period. If additional mitigation is necessary,
Chevron will amend the Form 2A application via sundry to correct the compensatory mitigation
amounts being provided.
Respectfully submitted.
Michael Keller- Lead Environmental Specialist (970-415-2631)
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Wildlife Mitigation Plan References and Sources
State of Colorado Rulemaking in support of Sensitive and Protected Species/Habitat:
Document references to ECMC Rules in support of this Wildlife Mitigation Plan include:
• 300 Series Rules:
o Rule 304: Form 2A: Oil and Gas Location Assessment Application
o Rule 309: CPW Consultation
• 400 Series Rules:
o Dust, Light, Noise and Odor Mitigation
• 500 Series Rules:
o 529: Rulemaking Proceedings
• 1200 Series Rules: Protection of Wildlife Resources
Source: ECMC Regulation (state.co.us)
Colorado Parks and Wildlife:
Colorado Parks and Wildlife High Priority Habitat maps in support of ECMC Rule Making and
supporting this Wildlife Mitigation Plan:
Source: ECMC Maps (state.co.us)
Colorado Parks and Wildlife, Department of Natural Resources- Recommended Buffer Zones
and Seasonal Restrictions for Colorado Raptors (2020):
Colorado Parks and Wildlife, Department of Natural Resources- Recommended Survey
Protocol and Actions to Protect Nesting Burrowing Owls (revised 4/6/21):
Source: Colorado Parks and Wildlife (state.co.us)
U.S. Endangered Species Act (ESA):
“Take” (as defined by ESA) of a federally-protected threatened and endangered species is
illegal without permit. The project analysis must take into consideration threatened and
endangered species as well as candidate and/or petitioned species. Species information may
be obtained by contacting a local U.S. Fish and Wildlife field office with project information
and/or accessed via the source below:
Source: https://ecos.fws.gov/ipac/
Critical Habitat under ESA
Critical habitat are specific areas deemed essential to the conservation of (ESA) endangered
and threatened species and may need special management or protections. Projects must be
evaluated for the presence of critical habitat.
Source: https://www.fws.gov/southeast/endangered-species-act/critical-habitat/
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Migratory Bird Treaty Act (MBTA):
The MBTA prohibits intentional take of federally-protected birds without permit. Projects shall
be evaluated for risk of take of MBTA-listed species, focusing on those species listed Birds of
Conservation Concern (BCC) and Birds of Management Concern (BMC). This information
may be obtained by contacting a local U.S. Fish and Wildlife field office with project information
and/or may be accessed at the source below:
Source: https://ecos.fws.gov/ipac/
Bald and Gold Eagle Protection Act (BGEPA):
“Take” (as defined by BGEPA) of federally protected eagles is illegal without permit. Projects
shall be evaluated for risk of take of bald and golden eagles. Species information may be
obtained by contacting a local U.S. Fish and Wildlife office with project information and/or may
be accessed at the source below:
Source: https://ecos.fws.gov/ipac/
Clean Water Act (CWA):
The CWA regulates the discharge of pollutants into the Waters of the United States and quality
standards for surface waters. CWA makes it unlawful to intentionally or negligently discharge
any pollutant from a point source into navigable waters, unless a permit is obtained.
Waters of the United States (WOTUS):
The Department of the Army, acting through the U.S. Army Corps of Engineers, has authority
to permit the discharge of dredged or fill material in waters of the U.S. under Section 404 of the
CWA, and permit work and the placement of structures in navigable waters of the U.S. under
Sections 9 and 10 of the Rivers and Harbors Act of 1899. Projects resulting in impacts to
WOTUS are subject to federal permitting requirements. Projects shall be evaluated for risk of
impacts to jurisdictional Waters of the United States.
In addition to the use of topographic maps, the following information is useful for WOTUS
determinations:
National Hydrography Dataset (NHD)/Watershed Boundary Dataset:
Source: https://nhd.usgs.gov/NHD_High_Resolution.html
USFWS National Wetland Inventory (NWI) Mapper:
Source: https://www.fws.gov/wetlands/
NOTE: National Resource Conservation Service (NRCS) Soil and Topography Data
(see section below) must be utilized to ascertain presence of hydric soils and flood risk.
National Historic Preservation Act (NHPA)/Colorado Historical, Prehistorical and
Archaeological Resources Act of 1973):
Projects shall be evaluated for presence of cultural resources and historical artifacts.
NOTE: Archaeological investigations must be performed or supervised by an archaeologist
who meets the U.S. Secretary of the Interior’s Professional Qualification Standards for
Archaeology (48FR 22716 or 36 CFR Part 61); or meets the requirements for Principal
Investigator defined in 8 CCR 1405-7.
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Federal Emergency Management Administration (FEMA) Floodplain;
Projects constructed in floodplains may require additional permitting. Projects shall be
evaluated for potential impacts to floodplains and flood risk.
Source: https://msc.fema.gov/portal
NOTE: If floodplain maps are not available (i.e. “unmapped”), NRCS Soil and Topography
Data must be used for planning purposes (See NRCS data below).
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Atachments
•Aqua�c Resources Inventory Report for the Proposed Development of the Skinner Ridge 10 Pad,
Garfield County, Colorado
•ECMC – CPW – Deer Park Gulch Spor�ish Management Waters High Priority Habitat Rule Waiver
Request
•CPW Approval Documenta�on for Deer Park Gulch Spor�ish Management Waters High Priority
Habitat Rule Waiver Request
172
Aquatic Resources Inventory Report
for the Proposed Development of the
Skinner Ridge 10 Pad, Garfield
County, Colorado
JULY 2023
PREPARED FOR
Chevron Rockies Business Unit
PREPARED BY
SWCA Environmental Consultants
173
174
AQUATIC RESOURCES INVENTORY REPORT FOR THE
PROPOSED DEVELOPMENT OF THE SKINNER RIDGE 10
PAD, GARFIELD COUNTY, COLORADO
Prepared for
Chevron Rockies Business Unit
1625 Broadway Street, Suite 2200
Denver, Colorado 80202
Prepared by
SWCA Environmental Consultants
295 Interlocken Boulevard, Suite 300
Broomfield, Colorado 80021
(303) 487-1183
www.swca.com
July 2023
175
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Aquatic Resources Inventory Report for the Proposed Development of the Skinner Ridge 10 Pad, Garfield County,
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i
CONTENTS
1 Introduction .......................................................................................................................................... 1
2 Methods ................................................................................................................................................. 1
2.1 Desktop Review ............................................................................................................................ 1
2.2 Field Survey .................................................................................................................................. 1
2.2.1 Mapping .............................................................................................................................. 1
2.2.2 Wetlands ............................................................................................................................. 2
2.2.3 Non-wetland Waters ........................................................................................................... 2
3 Results.................................................................................................................................................... 2
3.1 General Observations and Desktop Review ................................................................................. 3
3.2 Field Survey .................................................................................................................................. 3
3.2.1 Wetlands ............................................................................................................................. 4
3.2.2 Non-wetland Waters ........................................................................................................... 4
4 Summary and Recommendations ....................................................................................................... 4
5 Literature Cited .................................................................................................................................... 6
Appendices
Appendix A. Aquatic Resources Inventory Maps
Appendix B. Photographs of the Survey Area
Appendix C. Natural Resources Conservation Service Soil Report for the Survey Area
Tables
Table 1. Monthly Recorded Precipitation at the Grand Junction, Colorado, Weather Station ..................... 3
Table 2. Waterbodies Identified within the Survey Area .............................................................................. 4
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1 INTRODUCTION
On behalf of Chevron Rockies Business Unit (Chevron), SWCA Environmental Consultants (SWCA)
completed an aquatic resources inventory, commonly referred to as a wetland delineation, for the
proposed development of the Skinner Ridge 10 Pad in Garfield County, Colorado (Figure A-1 in
Appendix A). SWCA evaluated and delineated wetlands and other aquatic resources that are within 500
feet of the proposed pad area (survey area). The approximate center point of the proposed development is
at latitude 39.540314°, longitude -108.321892 ° (see Figure A-1). The goal of this aquatic resources
inventory is to identify aquatic resources containing an ordinary high-water mark (OHWM) or wetland
within 500 feet of the proposed development in order to comply with the Energy & Carbon Management
Commission’s (ECMC’s; formerly Colorado Oil and Gas Conservation Commission) Rule 1202(3).
The aquatic resources inventory included the identification and recording of features that may be
determined to be waters of the United States (WOTUS) by the U.S. Army Corps of Engineers (USACE).
WOTUS include waterbodies, such as rivers, creeks, streams, arroyos, lakes, and associated wetlands that
have connectivity to downstream navigable waters or tidal seas. Under the Clean Water Act, wetlands are
aquatic resources that are inundated or saturated by surface water or groundwater at a frequency and
duration sufficient to support, and under normal circumstances do support, a prevalence of vegetation
typically adapted for life in saturated soil conditions (USACE 1987). Non-wetland waters are generally
identified and delineated by the presence of an OHWM, which is a defined boundary on the shore or bank
of an aquatic resource established by water fluctuations and movement.
2 METHODS
The aquatic resources inventory included a desktop review of existing data and a field survey. The
following sections provide a summary of the methods used to collect data and generate aquatic resource
mapping.
2.1 Desktop Review
SWCA conducted a desktop review of existing spatial data prior to the field survey to identify areas with
the greatest potential for aquatic resources. Sources used during the desktop review included U.S.
Geological Survey (USGS) 7.5-minute quadrangles, U.S. Fish and Wildlife Service (USFWS) National
Wetlands Inventory (NWI) maps (USFWS 2023), the National Hydrography Dataset (NHD) (USGS
2023), the USGS StreamStats tool (Version 4.14.0) (USGS 2020), Natural Resources Conservation
Service (NRCS) soil survey maps (NRCS 2023a), and historic and current aerial photographs of the
survey area (Google Earth 2023; NETROnline 2023).
2.2 Field Survey
SWCA conducted the aquatic resources field survey on July 21, 2023. SWCA biologists performed
formal wetland and waterbody delineations within 500 feet of the proposed oil and gas location on
accessible parcels crossed by the proposed development. The following sections provide a summary of
the methods used during the field survey to collect data and generate aquatic resource mapping.
2.2.1 Mapping
A handheld global positioning system (GPS) receiver with sub-meter accuracy was used to record
delineated wetland and waterbody boundaries and geographically reference data points during the field
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survey. Geographic information system (GIS) software was used to analyze recorded features, calculate
areas, and generate the survey area maps. When potential wetland or non-wetland waters within the
survey area were located on adjacent land for which Chevron did not have access permission or extended
outside of accessible parcels, SWCA visually confirmed these resources from available access points and
digitized boundaries using the best available aerial imagery.
2.2.2 Wetlands
The presence/absence of wetlands was determined in the field using delineation methods provided in the
Corps of Engineers Wetlands Delineation Manual (Manual) (USACE 1987) and the Regional Supplement
to the Corps of Engineers Wetlands Delineation Manual: Great Plains Region (Version 2.0) (Regional
Supplement) (USACE 2010). Data at each potential wetland were recorded on the Regional Supplement
wetland determination data forms. Determination of wetland habitat (type) is based on the classification
system developed by Cowardin et al. (1979). Per the Manual and Regional Supplement, wetlands are
present in areas where three wetland parameters (i.e., wetland hydrology, hydric soils, and hydrophytic
vegetation community) are present under normal circumstances. The presence of these wetland
parameters is determined using the indicators provided in the Regional Supplement. One data point is
recorded within each potential wetland (or wetland type for proximate, similar wetlands) along with a
corresponding upland data point. These data provided the basis for mapped wetland-upland boundaries.
2.2.3 Non-wetland Waters
The presence and extent of non-wetland waters (e.g., constructed ditches and reservoirs, active channels,
and ponds) was determined in the field using the guidance and methods provided in the USACE
Regulatory Guidance Letter No. 05-05 (USACE 2005) and the USACE’s A Field Guide to the
Identification of the Ordinary High Water Mark (OHWM) in the Arid West Region of the Western United
States (USACE 2008) (Technical Guidance). An OHWM is the line on a shore established by fluctuations
of water and is typically identified by physical characteristics, such as a clear, natural line impressed on
the bank; shelving; changes in the character of soil; destruction of terrestrial vegetation; the presence of
litter and debris; or other appropriate means that consider the characteristics of the surrounding areas. The
spatial extent of non-wetland waters is delineated using the identified OHWM for each feature.
Non-wetland waters were characterized hydrologically as ephemeral, intermittent, or perennial waters.
Ephemeral features flow only in direct response to precipitation or snowfall and flow for a brief period of
time. Intermittent waters have prolonged flow that is sustained (at least in part) by melting snowpack or a
groundwater source. Perennial waters flow continuously but may have periods of less flow. According to
the USACE Manual and Technical Guidance (USACE 1987, 2008), erosional features that lack an
OHWM or a continuous OHWM are not WOTUS.
3 RESULTS
The results of the desktop review and field survey for the Skinner Ridge 10 pad are presented in the
following sections. Maps of the survey area are provided in Appendix A, representative photographs of
the survey area are provided in Appendix B, and the NRCS soil report for the survey area is provided in
Appendix C.
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3.1 General Observations and Desktop Review
The Skinner Ridge 10 pad survey area is in the Colorado Headwaters-Plateau (14010005), roughly 5,840
feet above sea level (see Figure A-1). The survey area terrain is flat, generally sloping to the southwest,
and primarily consists of oil and gas development (Figures B-1–4). Based on data provided by the USGS
StreamStats tool, the survey area is in an approximately 99.5-square-mile drainage basin that receives
approximately 20.6 inches of mean annual precipitation (USGS 2020).
The survey area is not located within a 100-year floodplain. The closest 100-year floodplain is associated
with Roan Creek, approximately 12.6 miles southeast of the pad boundary (ECMC 2023; Federal
Emergency Management Agency 2023). Geologic mapping for this area indicates that the survey area is
in the lower part shale, sandstone, marlstone, and limestone known as the Green River Formation (Tweto
1979). According to the NRCS soil surveys for Garfield County, Colorado, none of the soil map units
within the survey area have the potential to fulfill the hydric soil criteria (NRCS 2023b). The dominant
soil map units present within the survey area are Cumulic Haploborolls, 1 to 3 percent slopes, Happle
very channery sandy loam, 3 to 12 percent slopes, Happle-Rock outcrop association, 25 to 65 percent
slopes, and Tosca channery loam, 25 to 80 percent slopes MLRA 48A; all of these are described as well
drained and have recorded depths to groundwater greater than 80 inches (NRCS 2023a) (see Appendix
D).
The latest NHD and NWI maps indicate that there is one potentially jurisdictional stream feature within
the survey area of the proposed Skinner Ridge 10 pad (USFWS 2023). The mapped stream feature is
southeast of the proposed development, with the closest segment of the stream approximately 150 feet
southeast of the proposed pad. No aquatic resources were mapped or identified within the disturbance
boundary of the proposed pad.
Based on SWCA’s review of available data and observations made at the time of the survey, hydrologic
conditions in the vicinity of the survey area are generally representative of typical conditions for this time
of year. The recorded rainfall amounts for May to July 2023 are compared with normal rainfall amounts
for these months in Table 1. According to data obtained from Weather Underground (2023), in the 3-
month period preceding SWCA’s site visit, the survey area received less-than-normal rainfall, with less-
than-normal precipitation in all 3 months assessed.
Table 1. Monthly Recorded Precipitation at the Grand Junction, Colorado, Weather Station
Month Recorded Rainfall
(inches)
Normal Rainfall
(inches)
Difference
(inches)
May 2023 0.04 0.88 0.84
June 2023 0.23 0.46 0.23
July 2023 0.04 0.61 0.57
Total 0.31 1.95 1.64
Sources: U.S. Climate Data (2023); Weather Underground (2023).
3.2 Field Survey
Qualified SWCA biologists conducted the on-site field survey on July 21, 2023. SWCA biologists
performed formal wetland and waterbody delineations within 500 feet of the proposed oil and gas
location on accessible parcels crossed by the proposed development; visual wetland assessments followed
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4
by desktop delineations are conducted on parcels not crossed by a project for which Chevron does not
have permission for pedestrian access.
3.2.1 Wetlands
SWCA identified no wetlands within the Skinner Ridge 10 pad survey area, and no further action is
required.
3.2.2 Non-wetland Waters
SWCA identified and delineated approximately 0.24 acre of a non-wetland waterbodies within the survey
area (Table 2, Figure A-2). Table 2 lists the size of each delineated waterbody feature within the survey
area and the distance from each feature to the proposed Skinner Ridge 10 pad.
Table 2. Waterbodies Identified within the Survey Area
Waterbody ID Size within the Survey Area (acres) Distance to Pad (feet) Direction to Pad
WB01 0.187 383.68 Northeast
WB02 0.050 150.51 Northwest
3.2.2.1 AGRICULTURAL DITCH (WB01)
SWCA delineated approximately 0.19 acre of an agricultural ditch containing an OHWM. The ditch is an
intermittent drainage feature that flows generally north to south and crosses the western portion of the
survey area, continuing south and draining into WB02 (Figures B-5 and B-6 in Appendix B; see Figures
A-2). The ditch receives waters primarily from upstream reservoirs and aquifers. The waterbody is
located slightly downgradient of the proposed Skinner Ridge 10 pad, with the closest segment of the ditch
approximately 384 feet southwest of the proposed development.
3.2.2.2 INTERMITTENT STREAM (WB02)
SWCA delineated approximately 0.05 acre of unnamed stream feature containing an OHWM. The stream
is an intermittent drainage feature that is a tributary to Clear Creek (Figures B-7 and B-8; see Figure A-2).
The stream receives waters primarily from runoff from the snowpack melt. The waterbody is located
slightly downgradient of the proposed Skinner Ridge 10 pad, with the closest segment of the stream
feature approximately 150 feet southeast of the disturbance boundary of the proposed Skinner Ridge 10
pad.
4 SUMMARY AND RECOMMENDATIONS
Two waterbodies, totaling 0.237 acre, were recorded within the proposed Skinner Ridge 10 pad survey
area. Based on NWI and NHD maps, field surveys, and proximity of the proposed development to the
nearest aquatic resources, disturbance from construction is not anticipated to impact potentially
jurisdictional aquatic resources; therefore, proposed production facility construction is not expected to
trigger permitting under Section 404 of the Clean Water Act (U.S. Environmental Protection Agency
2008).
ECMC permitting is still expected to include consultation regarding Rule 1202(3) because the proposed
Skinner Ridge 10 pad will likely include chemical storage facilities within 500 feet of an aquatic resource.
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5
It is assumed that a variance application will be required. The current process requires operators to submit
a variance request through a formal hearings application. Variance applications must demonstrate the
following under Rule 502.c: 1) that the operator has made a good faith effort or is unable to comply with
the rule; 2) that the requested variance will not violate the basic intent of the Act; 3) that the requested
variance is necessary to avoid an undue hardship; 4) that granting the variance will result in no adverse
impact to public health, safety, welfare, the environment, or wildlife resources; and 5) that the requested
variance contains reasonable mitigation measures to avoid, minimize, or mitigate adverse impacts to
public health, safety, welfare, the environment, and wildlife resources. Based on SWCA’s experience,
reasonable mitigation measures include an engineering design incorporating protective berms and
stormwater management to avoid and minimize risk of potential impacts.
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5 LITERATURE CITED
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater
Habitats of the United States. FWS/OBS-79/31. Washington, D.C.: U.S. Fish and Wildlife
Service.
Energy & Carbon Management Commission (ECMC). 2023. ECMC Interactive Map. Available at:
https://ecmc.state.co.us/maps.html#/gisonline. Accessed July 2023.
Federal Emergency Management Agency. 2023. FEMA Flood Map Service Center. Available at:
https://msc.fema.gov/portal/home. Accessed July 2023.
Google Earth. 2023. Available at: https://www.google.com/earth/. Accessed July 2023.
Natural Resources Conservation Service (NRCS). 2023a. Soil Survey of Garfield County Northern Part,
Colorado. Available at: http://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx.
Accessed July 2023.
———. 2023b. Natural Resources Conservation Service, National Lists of Hydric Soils (December
2015). Available at: http://www.nrcs.usda.gov/wps/portal/nrcs/main/soils/use/hydric/. Accessed
July 2023.
NETROnline. 2023. Historic Aerials. Historic Aerial Image Database Viewer. Available at:
https://www.historicaerials.com/viewer. Accessed July 2023.
Tweto, O. 1979. Geologic Map of Colorado: U.S. Geological Survey Special Geologic Map, scale
1:500,000. Available at: https://ngmdb.usgs.gov/Prodesc/proddesc_68589.htm. Accessed July
2023.
U.S. Army Corps of Engineers (USACE). 1987. Corps of Engineers Wetlands Delineation Manual.
Technical Report Y-87-1. Vicksburg, Mississippi: U.S. Army Engineers Waterways Experiment
Station.
———. 2005. Regulatory Guidance Letter No. 05-05, Subject: Ordinary High Water Mark Identification.
Signed by Major General Don T. Riley, Director of Civil Works.
———. 2008. A Field Guide to the Identification of the Ordinary High Water Mark (OHWM) in the Arid
West Region of the Western United States, edited by R.W. Lichvar and S.M. McColley.
ERDC/CRREL TR-08-12. Hanover, New Hampshire: U.S. Army Engineer Research and
Development Center.
———. 2010. Regional Supplement to the Corps of Engineers Wetlands Delineation Manual: Great
Plains Region (Version 2.0), edited by J.S. Wakeley, R.W. Lichvar, and C.V. Noble. ERDC/EL
TR-08-12. Vicksburg, Mississippi: U.S. Army Engineer Research and Development Center.
U.S. Climate Data. 2023. Climate Grand Junction – Colorado. Available at:
https://www.usclimatedata.com/climate/grand-junction/colorado/united-states/usco0166.
Accessed July 2023.
U.S. Environmental Protection Agency. 2008. 2008 Rapanos Guidance and Related Documents under
CWA Section 404. Available at: https://www.epa.gov/cwa-404/2008-rapanos-guidance-and-
related-documents-under-cwa-section-404. Accessed July 2023.
184
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Colorado
7
U.S. Fish and Wildlife Service (USFWS). 2023. National Wetlands Inventory. U.S. Fish and Wildlife
Service Ecological Services. Available at: http://www.fws.gov/wetlands/Data/State-
Downloads.html. Accessed July 2023.
U.S. Geological Survey (USGS). 2020. StreamStats Web Tool. Available at:
https://streamstats.usgs.gov/ss/. Accessed July 2023.
———. 2023. National Hydrography Dataset. Available at: http://nhd.usgs.gov/index.html. Accessed
July 2023.
Weather Underground. 2023. Forecast for Grand Junction, CO. Available at:
https://www.wunderground.com/history/monthly/us/co/grand-junction/KGJT/date/2023-7.
Accessed July 2023.
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186
APPENDIX A
Aquatic Resources Inventory Maps
187
188
A-1
Figure A-1. Overview of the Skinner Ridge 10 pad survey area.
189
A-2
Figure A-2. Aerial overview of the Skinner Ridge 10 pad survey area.
190
Appendix B
Photographs of the Survey Area
191
192
B-3
Figure B-1. Overview of the proposed Skinner Ridge 10 pad location; view
facing southwest from berm.
Figure B-2. Overview of the proposed Skinner Ridge 10 pad location; view
facing west-southwest from northeast portion of pad.
193
B-4
Figure B-3. Overview of the proposed Skinner Ridge 10 pad location; view
facing northeast from western portion of pad.
Figure B-4. Overview of the proposed Skinner Ridge 10 pad location; view
facing east from western portion of pad.
194
B-5
Figure B-5. Overview of the agricultural ditch (WB01); view facing northwest.
Figure B-6. Overview of the agricultural ditch (WB01); view facing southeast.
195
B-6
Figure B-7. Overview of the intermittent stream (WB02); view facing
northeast.
Figure B-8. Overview of the intermittent stream (WB02); view facing
southwest.
196
APPENDIX C
Natural Resources Conservation Service Soil Report for the Survey
Area
197
198
Hydric Rating by Map Unit—Douglas-Plateau Area, Colorado, Parts of Garfield and Mesa Counties
(Skinner Ridge 10 Pad Survey Area)
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
7/31/2023
Page 1 of 5
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729730 729820 729910 730000 730090 730180 730270 730360 730450 730540
729730 729820 729910 730000 730090 730180 730270 730360 730450 730540
39° 32' 34'' N
10
8
°
1
9
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W
39° 32' 34'' N
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39° 32' 16'' N
10
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39° 32' 16'' N
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N
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 12N WGS84
0 150 300 600 900Feet
0 50 100 200 300Meters
Map Scale: 1:3,880 if printed on A landscape (11" x 8.5") sheet.
Soil Map may not be valid at this scale.
199
MAP LEGEND MAP INFORMATION
Area of Interest (AOI)
Area of Interest (AOI)
Soils
Soil Rating Polygons
Hydric (100%)
Hydric (66 to 99%)
Hydric (33 to 65%)
Hydric (1 to 32%)
Not Hydric (0%)
Not rated or not available
Soil Rating Lines
Hydric (100%)
Hydric (66 to 99%)
Hydric (33 to 65%)
Hydric (1 to 32%)
Not Hydric (0%)
Not rated or not available
Soil Rating Points
Hydric (100%)
Hydric (66 to 99%)
Hydric (33 to 65%)
Hydric (1 to 32%)
Not Hydric (0%)
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at
1:24,000.
Warning: Soil Map may not be valid at this scale.
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
scale.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Douglas-Plateau Area, Colorado, Parts of
Garfield and Mesa Counties
Survey Area Data: Version 15, Sep 6, 2022
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Jun 24, 2020—Jul 8,
2020
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Hydric Rating by Map Unit—Douglas-Plateau Area, Colorado, Parts of Garfield and Mesa Counties
(Skinner Ridge 10 Pad Survey Area)
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
7/31/2023
Page 2 of 5
200
Hydric Rating by Map Unit
Map unit symbol Map unit name Rating Acres in AOI Percent of AOI
28 Cumulic Haploborolls, 1
to 3 percent slopes
0 0.0 0.0%
44 Happle very channery
sandy loam, 3 to 12
percent slopes
0 22.4 56.0%
46 Happle-Rock outcrop
association, 25 to 65
percent slopes
0 14.1 35.2%
67 Tosca channery loam,
25 to 80 percent
slopes MLRA 48A
0 3.5 8.8%
Totals for Area of Interest 40.0 100.0%
Hydric Rating by Map Unit—Douglas-Plateau Area, Colorado, Parts of Garfield and Mesa
Counties
Skinner Ridge 10 Pad Survey Area
Natural Resources
Conservation Service
Web Soil Survey
National Cooperative Soil Survey
7/31/2023
Page 3 of 5
201
ECMC – CPW – Deer Park Gulch Spor�ish Management Waters High Priority Habitat Rule
Waiver Request
202
Chevron Rockies Business Unit
2001 16th Street, Ste 900
Denver, Colorado, 80220
Energy and Carbon Management Commission- Colorado Parks and
Wildlife- Deer Park Gulch Sportfish Management Waters High Priority
Habitat Rule Waiver Request
Pursuant to the Colorado Energy and Carbon Management Commission (ECMC) 1200 Series
Rules for the protection of wildlife and habitat, Chevron USA Inc. (Chevron) is presenting this
request to ECMC and Colorado Parks and Wildlife (CPW) for consideration of the following for the
SKR 698-10-BV OGDP. CPW Northwest Energy Liaison Taylor Elm, reviewed and approved this
waiver request document on 11/16/23. Mr. Elm’s approval email is attached to the OGDP submittal.
•Waiver to Rule 1202.c.(1).S. (waiver under 309.e.(5).ii) “For Perennial Streams, if the
Operator adheres to the following Best Management Practices for any new ground
disturbance that meets the criteria of Rule 1202.c. between 300 feet and 500 feet from the
OHWM of Sportfish Management Waters”
•Waiver to Rule 1202.a.(3) “At new and existing Oil and Gas Locations, Operators will not
situate new staging, refueling or Chemical storage areas within 500 feet of the Ordinary
High-Water Mark (OHWM) of any river, perennial or intermittent stream, lake pond or
wetland”
•Review and acceptance of Rule 1202.c.(2).C: “Access road construction and
Flowline/utility corridor clearing and installation activities within the High Priority Habitat
identified in Rules 1202.c.(1).Q–S in association with an approved Form 2A may be
allowed subject to Best Management Practices or other avoidance measures agreed to in
consultation with CPW”
Chevron is proposing the use of an existing pad in our SKR 698-10-BV OGDP for the drilling and
completion of up to two wells on the SKR 698-10-BV pad located within T6S, R98W, Section 15
(NW/NW) and Section 10 (SW/SW), Garfield County, Colorado (Figure 1). The proposed drilling
unit is delineated below in red and the drill pad is located in the southwest corner of the drilling unit.
203
November 16, 2023 Page 2 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
FIGURE 1- SKR 698-10-BV Well Pad
The drill pad location, although permitted for oil and gas development under O&G Location ID
Number 336056, was never developed for well drilling and has been utilized as an
equipment/material storage yard permitted by Garfield County. Due to the optimal proximity of the
SKR 698-10-BV pad at the southwestern extent of the proposed drill unit, use of the existing pad
would eliminate any additional pad construction disturbances outside of the pad’s original Disturbed
Area (DA) and allow well drilling and completion activities, with gas takeaway already in-place
adjacent to the proposed pad.
The extent of the proposed activities would include well drilling and completion, freshwater sourcing
from the Colorado River, gas and water flowline tie-in, emergency access road construction, and
produced water flowback management and water hauling activities. Source water for drilling and
completion activities will be pumped from the Kobe Water Facility and along a federal Right-of-Way
(ROW) evaluated and approved by the Bureau of Land Management (BLM) in 2023 for well
completion activities in Skinner Ridge, initiated in August 2023. The temporary ROW authorization
(COC-80860) is good for a three-year term and will be utilized for Chevron’s well drilling under this
project. The temporary source water flowline will include approximately 12 miles of surface flat-lay
flowline and pump stations along existing water diversion and access road disturbances, up to the
water staging pad and SKR 698-10-BV well pad.
Well drilling and completion activities are all potentially within 500 feet of Deer Park Gulch (also
known as Tom Creek), a Rule 1202.c.(1).S. defined Sportfish Management Waters High Priority
Habitat (HPH) presented as Figure 2. Chevron personnel consulted with Colorado Parks and
Wildlife (CPW’s) Northwest Region Energy Liaison, Taylor Elm, in early 2023 to discuss the
proposed project. CPW reviewed proposed activities and agreed that use of existing disturbances
for the project was preferable and requested that Chevron provide this formal request for Waiver
to these activities in HPH.
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November 16, 2023 Page 3 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
FIGURE 2- SKR 698-10-BV Well Pad adjacent to Deer Park Gulch (aka Tom Creek)
Anticipated activities include the following:
• Drilling and completion of up to two wells on the SKR 698-10-BV well pad; well completion
activities will require the staging of flowback tanks and equipment and construction of a
temporary freshwater storage facility (MLVT) on the SKR 22-1 pad to the south (the Skinner
Ridge 66S98W/22NENW pad; Location ID# 324358, aka SKR 22-1).
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November 16, 2023 Page 4 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
• Gas and liquids production flowline tie-in at Clear Creek Road immediately adjacent to the
SKR 698-10-BV pad for gas, and then liquids flowline installed up to the SKR 698-09 AV
Pad (Figure 3).
FIGURE 3- Liquids (Red) and Gas (Yellow) Flowline Tie-in; SKR 698-10-BV Well Pad to the
SKR 698-09-AV Well Pad
• Construction of a secondary access road at the southwest corner of the SKR 698-10-BV
pad.
• Temporary installation of a surface-lay freshwater feed line to MLVT staging at the SKR
22-1 pad, and then fresh water supply line routing to the SKR 598-36-BV well pad to
support well completion activities (Figure 4).
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November 16, 2023 Page 5 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
FIGURE 4- Fresh Water Sourcing from the SKR 22-1 Pad to the SKR 698-10-BV Well Pad
Waiver to Rule 1202.c.(1).S.
As documented in the SKR 698-10-BV OGDP Application, Chevron pre-consulted with CPW
pursuant to the need for a request to the Commission for approval of a Rule 502 Variance as it
relates to Rule 1202.c(1).S. (i.e., Sportfish management waters not identified by CPW as “Gold
Medal” (within 500 feet of OHWM)).
Although the Commission is empowered to grant a Variance “to any of the Commission’s Rules or
orders . . . after a hearing upon the application.” Rule 502.b.(1), CPW Northwest Energy liaison
Taylor Elm reviewed the SKR 698-10-BV location and determined that although the location does
207
November 16, 2023 Page 6 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
fall within Rule 1202.c.(1).S. HPH, the applicability of waiver provisions of Rule 309.e.(5).D.ii.bb
would be appropriate to Deer Park Gulch and this OGDP application.
ii. CPW may waive the application of and the Director may grant an exception to Rule
1202.c.(1).S:
bb. For ephemeral and intermittent streams, if the Operator adheres to the
following Best Management Practices:
1. Contain Flowback and Stimulation Fluids in Tanks that are placed on
a Working Pad Surface in an area with downgradient perimeter
berming;
2. Construct lined berms or other lined containment devices pursuant to
Rule 603.o around any new crude oil, condensate, and produced
water storage Tanks that are installed after January 15, 2021;
3. Inspect the Oil and Gas Location on a daily basis, unless the approved
Form 2A provides for different inspection frequency or alternative
method of compliance;
4. Maintain adequate Spill response equipment at the Oil and Gas
Location during drilling and completion operations; and
5. Not construct or utilize any Pits, except that Operators may continue
to utilize exiting Pits that were properly permitted, constructed,
operated, and maintained in compliance prior to January 15, 2021.
Therefore, this Rule provision allows for CPW to grant a waiver for an intermittent drainage
anywhere within the 500-foot Aquatic HPH buffer area, instead of within 300 to 500 feet of the
OHWM, as would be the case if Deer Park Gulch were a perennial drainage. Chevron respectfully
requests that CPW/ECMC provide a Waiver to the rule and the 500-foot NSO and grant an
application allowing these proposed activities to occur within 0-500 feet from the Sportfish
Management Waters OHWM (Figure 2). Further, Chevron has made a good faith effort to comply
with Commission Rules, as well as the spirit of the Commission’s rule and the requested Waiver
will not violate the basic intent of the Act under the following conditions and Best Management
Practices (BMPs).
• Chevron proposes to utilize an existing and established disturbance under this Waiver
which eliminates the impact from new pad construction, is protective of public health,
safety, welfare, the environment, and wildlife resources and contains mitigation measures
(as BMPs) to avoid, minimize, or mitigate any adverse impacts. The gas flowline takeaway
tie-in and proposed emergency pad access construction are immediately adjacent to the
SKR 698-10-BV Well Pad and Clear Creek Road and will require minimal to no expansion
of disturbances (Figure 5).
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2001 16th Street, Suite 900 Denver, Colorado 80202
FIGURE 5- SKR 698-10-BV Well Pad, Drilling/Completion Stage
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2001 16th Street, Suite 900 Denver, Colorado 80202
• The requested Waiver implements design mitigation measures protective of Aquatic
Sportfish Management Waters associated with Deer Park Gulch, and include:
o Stormwater management design protections that include a perimeter collection
channel around the entire pad circumference while routing stormwater flow to two
dedicated detention ponds on the south and west sides of the pad.
o Post interim reclamation will maintain diversion channels on the south and west
side of the reclaimed pad area to route surface flows to the permanent sediment
pond(s).
o Interim reclamation for long-term well production and facility operation will reduce
the original location disturbed area (DA) from 6.4 acres to 1.7 acres, re-
establishing approximately 4.6 acres of habitat to the area (Figure 6).
o The post-interim reclamation facility pad area will include a permanent raised berm
between the facility maintenance tank and Deer Park Gulch.
o The facility maintenance tank will be constructed within an impervious,
geosynthetic-lined under base, anchored into a metal-sided secondary
containment system capable of containing up to 50% of the tank capacity and any
spill or leak from the storage vessel.
o Telemetric and automation technology will be utilized to monitor any variations in
facility pressures and fluid gauges which could indicate a leak and provide remote
shut-in capabilities of the facility in the event of any discharge or emergency.
o A dedicated Spill-Response trailer with spill containment equipment will be staged
full time at the SKR 698-10-BV well pad throughout well drilling activities and well
completion operations.
o The proposed activities will not utilize any pits. Fresh water will be temporarily
stored in the Harpoon MLVT (Modular Large Volume Tank) structure on the SKR
22-1 pad, which will be covered to protect wildlife and treated for WNV larvae.
o The location with be inspected daily during long-term production activities.
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November 16, 2023 Page 9 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
FIGURE 6- SKR 698-10-BV Well Pad, Post Interim Reclamation
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2001 16th Street, Suite 900 Denver, Colorado 80202
This Waiver request can be further substantiated by the typical hydrologic conditions within the
Clear Creek drainage system and specifically Deer Park Gulch.
Based on the ephemeral flow conditions of the Roan Creek drainage system, SWCA Environmental
Consultants (SWCA) performed field analysis of Deer Park Gulch (aka Tom Creek) on behalf of
Chevron in July 2023. SWCA field determined that the Deer Park Gulch drainage’s seasonal flow
(Figure 7) would be incapable of supporting sportfish species, had a shallow and inconsistent
OHWM, could not support any fringe wetlands within the survey area , and by definition the SKR
698-10-BV Well Pad does not fall within any mapped habitat triggering consultation under Rule
1202.c. The full SWCA field analysis is attached to this Waiver request.
FIGURE 7- Deer Park Gulch, approximately 180 feet East of the Proposed Pad
Further, water flow within the Roan Creek drainage (of which Deer Park Gulch, tributary to Clear
Creek, is just one of many tributaries) is monitored at the De Beque flow monitoring station
approximately 13 miles downstream from the SKR 698-10-BV drill pad and Chevron’s proposed
activities. Flow from USGS Station 391953108130201 (2022 flows shown below as Figure 8)
indicate that cumulative flows from the entire Roan Creek contributory system can range between
less than one cubic feet per second (cfs) and up to 40 cfs sustained flows, with transitory storm
event peaks up to 100 cfs or more. However, sustained flows over the entire drainage system
between one and ten cfs would not appear to support Sportfish Management Species long term.
Consequently, Clear Creek and Deer Park Gulch, would contribute just a fraction of these flow
volumes to the Roan Creek system and would therefore not appear to be able to sustain aquatic
species.
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2001 16th Street, Suite 900 Denver, Colorado 80202
FIGURE 8- USGS Station at De Beque, Colorado
Chevron is aware of CPW’s designation of Deer Park Gulch/Clear Creek as Sportfish Management
Waters 1202.c HPH and respectfully requests this Exception request to Rule 502.b.(1) (between
0’-300’ from the OHWM) and Waiver request per Rule 309.e.(5).D consultation for well drilling,
completion, flowback and water recycle activities in protection of the HPH (between 300’-500’ from
the OHWM).
Rule 1202.a.(3) Waiver Request
Chevron respectfully requests a waiver to Rule 1202.a.(3) for long term placement of tanks within
500 feet of Deer Park Gulch supported by the following hydrologic review and BMP commitment.
Field Hydrologic Review
Hydrologic field review of the SKR 698-10-BV project was performed by SWCA Environmental
Services Professional Wetland Scientist (PWS) the week of July 21st, 2023. Survey activities were
performed based on existing hydrologic features identified in the field including National Wetland
Inventory (NWI)-mapped wetlands, National Hydrography Dataset (NHD) delineations, and the
features presented on the SKR 698-10-BV Well Pad Hydrology Map to be submitted with the 2A
application packet to ECMC. As depicted on Figure 9, SWCA confirmed that Deer Park Gulch (dry
at the time of inspection) which can seasonally hold water and has a defined OHWM is identified
as Sportfish Management Waters HPH and is located ±150’ southeast of the pad’s permitted
213
November 16, 2023 Page 12 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
disturbed area (DA). Also, an agricultural ditch (holding water at the time of inspection) was
identified ±343’ southwest of the pad’s DA. No other associated wetlands, water features or
hydrophytic plant or soil indicators were identified within 500 feet of the pad’s DA.
FIGURE 9- SKR 698-10-BV Well Pad Hydrologic Review
The recent hydrology field investigation suggests that per Rule 1202.a.(3), long -term well and
facility operations will place the maintenance tank in the northeast portion of the pad (refer to Figure
6) within 500 feet of Deer Park Gulch to the southeast and the agricultural ditch to the southwest.
Chevron is requesting CPW Waiver approval to Rule 1202.a.(3) for this location in protection of
these potential aquatic resources. Chevron commits to institute the following BMPs to be protective
of Deer Park Gulch and the agricultural ditch:
o The facility maintenance tank (example picture below) will be constructed within an
impervious, geosynthetic-lined under base, anchored into a metal-sided secondary
containment system capable of containing up to 50% of the tanks capacity and any spill or
leak from the storage vessel;
214
November 16, 2023 Page 13 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
o Interim reclamation of the pad will include a permanent berm placed downgradient from -
the maintenance tank and between the maintenance tank and Deer Park Gulch ;
o Permanent, post-interim reclamation stormwater controls will route flow from the facility
area to perimeter collection channels and to stormwater sediment ponds located between
the pad and downgradient aquatic features;
o All surficial activities performed by Chevron during production operation activities will be
protective of the environment. All vessels, totes, valves and flow lines associated with well
production activities will be inspected daily for damage or leaks while in service;
o Telemetric and automation technology will be utilized to monitor any variations in facility
pressures and fluid gauges which could indicate a leak and provide remote shut-in
capabilities of the facility in the event of any discharge or emergency ; and
The complete Hydrologic Survey Report for the SKR 698-10-BV Pad is attached to this Waiver
document. Chevron respectfully requests a timely review of the project by CPW and that a Waiver
to Rule 1202.a.(3) be approved.
Review and acceptance of Rule 1202.c.(2).C.
The construction of a production flowline for liquids transfer between the SKR 698-10-BV drill pad
and SKR 698-09-AV drill pad (Figure 10, red trace) is proposed in anticipation of gas and liquid
delivery to the Skinner Ridge gas processing facility approximately 2 ½ miles Northwest of the SKR
698-10-BV pad, along Clear Creek Road. Gas flowline tie-in (Figure 10, yellow trace) will require
a short 90-foot lateral travelling west of the SKR 698-10-BV pad to an existing gas-gathering line
adjacent to Clear Creek Road. Although approximately ½ of the liquid flowline (2500 feet with an
overall length of 4900 feet) will require disturbances within Clear Creek’s Aquatic Sportfish
215
November 16, 2023 Page 14 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
Management Waters NSO, the gathering lines will be within the existing flowline right-of-way
(ROW) along Clear Creek Road and Chevron respectfully utilizes Rule 1202.c.(2).C where:
Access road construction and Flowline/utility corridor clearing and installation activities within the
High Priority Habitat identified in Rules 1202.c.(1).Q –S in association with an approved Form 2A
may be allowed subject to Best Management Practices or other avoidance measures agreed to in
consultation with CPW
FIGURE 10- SKR 698-10-BV Gas and Liquid Gathering Lines
Per Chevron’s ongoing communication with CPW, Taylor Elm indicated that CPW concurs with the
application of Rule 1202.c.(2).C. to allow for flowline installation within the aquatic habitat buffer .
Chevron commits to institute the following BMPs to be protective of Clear Creek and its associated
fringe wetlands during flowline installation.
216
November 16, 2023 Page 15 of 15
2001 16th Street, Suite 900 Denver, Colorado 80202
1. The liquids flowline alignment will be constructed within the existing flowline ROW
where the existing gas gathering flowline was installed. Flowline installation
methods will provide a natural upgradient stormwater barrier to any siltation, fluid
discharge or stormwater flow West toward Clear Creek.
2. Stormwater controls such as straw wattles and/or silt fencing will be utilized along
the flowline alignment to contain any off-disturbance flow or soil movement during
flowline installation.
3. Sediment settling areas (ponds) will be established within any existing access road
runoff ditch.
4. The flowline will be Inspected daily during installation operations.
5. Following flowline installation, the disturbance will be covered, regraded, topsoil
replaced, and reseeded as quickly as possible.
6. A dedicated Spill-Response trailer with spill containment equipment will be staged
full time at the SKR 698-10-BV pad throughout flowline installation activities.
Elk Winter Concentration Area HPH Rule 1202.d.(2)
In addition to Sportfish Management Waters HPH, Chevron’s proposed well drilling and completion
project lies within Elk Winter Concentration Area HPH, pursuant to Rule 1202.d.(2). Chevron has
consulted directly with CPW per this resource and will attempt to perform all construction, well
drilling and completion activities outside of the protective timing stipulation for this habitat (i.e.,
allowed between May 1 thru November 30). Should proposed activities outlined in this document
be delayed or the potential exists that work may extend into this protective timing window, prior to
any further activity Chevron will re-consult with CPW and determine if a waiver to the timing
stipulation is appropriate, along with any BMPs required to protect the species and habitat.
Chevron appreciates ECMC’s and CPW’s review and consideration of these waiver requests.
Please don’t hesitate to contact me directly if either agency requires additional information or
clarification for their determination.
Michael Keller- Lead Environmental Specialist
Cc: Derek Eggert
. Mike Rodine
Michael Jewell
217
CPW Approval Documenta�on for Deer Park Gulch Spor�ish Management Waters High Priority
Habitat Rule Waiver Request
218
From:Taylor Elm - DNR
To:Keller, Michael
Subject:[**EXTERNAL**] Re: Draft for consultation- Skinner Ridge 698-10-BV Well Pad and Sportfish Management
Waters HPH Waiver Request
Date:Thursday, November 16, 2023 10:57:41 AM
Be aware this external email contains an attachment and/or link.
Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the
Cyber Intelligence Center using the Report Phishing button.
Mike,
Thank you for the continued communication on this matter and for incorporating the suggested edits
that I had provided on October 25th. Based on those changes and the pre-application consultation
process we've been engaged in, CPW approves both of the waivers being requested (Rule 1202.c.(1).S.
NSO stipulation and Rule 1202.a.(3).).
We appreciate Chevron's thorough investigation of the Deer Park Gulch waterway and we agree with the
results of the SWCA Consulting report. This drainage does not contain sufficient year-round flows to
support any sportfish populations. Additionally, we appreciate the incorporation of the best management
practices that we have discussed to further minimize adverse impacts related to these two waiver
requests. Based on these factors, CPW does not have significant concerns related to the proposed oil
and gas activities. We approve both waiver requests, and consider this email correspondence as our
official waiver approval.
If you have any questions, or we can provide additional information, please don't hesitate to reach out.
Thank you,
Taylor Elm
Northwest Region Energy Liaison
P 970.947.2971 | C 970.986.9767
711 Independent Ave. Grand Junction, CO 81505
taylor.elm@state.co.us | cpw.state.co.us
On Tue, Oct 24, 2023 at 3:22 PM Keller, Michael <michael.keller@chevron.com> wrote:
Hi Taylor and I hope you are well. Please see the attached Draft of our proposed Waiver
Request for Skinner Ridge well drilling/completions and flowline installation near/within
the Deer Park Gulch/Clear Creek Aquatic Sportfish Management Waters HPH. As we
discussed, I cited Rule 309.e.(5).D.ii.bb to role the ECMC Variance request into CPW
purview and Waiver approval. Just an FYI, Figure 5 and Figure 6 (grading plan drawings
are just draft and a little difficult to see; those will be replaced with final drawings. This will
be submitted with the WMP and 2A packet, and I wanted your eyes on it first.
I appreciate your guidance and review of the document as part of our consultation effort
with CPW. Thanks Taylor.
Mike.
219
Variance to Rule 1202.c.(1).S roll this into CPWs waiver below
Waiver to Rule 1202.c.(1).S.
Waiver to Rule 1202.a.(3) staging chemical storage within 500’ of an aquatic
resource
Review and acceptance of Rule 1202.c.(2).C allowing flowline construction within
aquatic HPH
Michael Keller
Lead Environmental Specialist
Michael.Keller@Chevron.com
Chevron Rockies Business Unit
Chevron Corporation
2001 16th Street, Suite 900
Denver, Colorado, 80202
Mobile 970-415-2631
220
From:Taylor Elm - DNR
To:Keller, Michael
Subject:[**EXTERNAL**] Re: Draft for consultation- Skinner Ridge 698-10-BV Well Pad and Sportfish Management
Waters HPH Waiver Request
Date:Wednesday, October 25, 2023 10:40:27 AM
Be aware this external email contains an attachment and/or link.
Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the
Cyber Intelligence Center using the Report Phishing button.
Hello Mike,
Thanks for sending over this draft document. I think the bulk of the document and justification pieces
(i.e., BMPs being implemented, hydrologic data that has been gathered, etc.) all look really good. I
don't have any edits or additional measures that CPW would like to see included.
One recommendation on the first page would be to remove the "Variance to Rule 1202.c.(1).S." section
entirely, as there is not any ECMC variance needed. Instead I would only include the Rule 309.e.
(5).D.ii.bb CPW waiver request as you mentioned, and remove the "for perennial streams" language in
the second section. This is not the instance that we're addressing, so I would clean all that up to be
very clear on the waiver request being submitted.
Also, small potatoes, but on PDF page 13 I'd recommend the following change:
Per Chevron’s ongoing communication with CPW, Taylor Elm indicated that CPW concurs with the
application of Rule 1202.c.(2).C. to allow for flowline installation within the aquatic habitat
buffer could grant this waiver. Chevron commits to institute the following BMPs to be protective of
Clear Creek and its associated fringe wetlands during flowline installation.
Our concurrence on the application of Rule 1202.c.(2).C. is not typically necessary, but I'm happy to
provide that. I just want to be clear that this is not a "waiver" that CPW is granting, it's allowed per
that rule. We tend to catch flak for allowing so many waivers, so if we can avoid the perception of
granting another one, it helps!
Thanks,
On Tue, Oct 24, 2023 at 3:22 PM Keller, Michael <michael.keller@chevron.com> wrote:
Hi Taylor and I hope you are well. Please see the attached Draft of our proposed Waiver
Request for Skinner Ridge well drilling/completions and flowline installation near/within
the Deer Park Gulch/Clear Creek Aquatic Sportfish Management Waters HPH. As we
discussed, I cited Rule 309.e.(5).D.ii.bb to role the ECMC Variance request into CPW
purview and Waiver approval. Just an FYI, Figure 5 and Figure 6 (grading plan drawings
are just draft and a little difficult to see; those will be replaced with final drawings. This will
be submitted with the WMP and 2A packet, and I wanted your eyes on it first.
I appreciate your guidance and review of the document as part of our consultation effort
with CPW. Thanks Taylor.
Mike.
221
Variance to Rule 1202.c.(1).S roll this into CPWs waiver below
Waiver to Rule 1202.c.(1).S.
Waiver to Rule 1202.a.(3) staging chemical storage within 500’ of an aquatic
resource
Review and acceptance of Rule 1202.c.(2).C allowing flowline construction within
aquatic HPH
Michael Keller
Lead Environmental Specialist
Michael.Keller@Chevron.com
Chevron Rockies Business Unit
Chevron Corporation
2001 16th Street, Suite 900
Denver, Colorado, 80202
Mobile 970-415-2631
222
APPENDIX I
GARFIELD COUNTY LIPA
6428
SKR 698‐10‐BV Pad
Township 6 South, Range 98 West, 6th PM
Sections 10 & 15: Tract 72
Garfield County, Colorado
223
224
225
226
227
APPENDIX J
DRIVEWAY PERMIT
APPLICATION
SKR 698‐10‐BV Pad
Township 6 South, Range 98 West, 6th PM
Sections 10 & 15: Tract 72
Garfield County, Colorado
228
Garfield County Road and Bridge
0298 CR 333A
Rifle, CO 81650
PH: 970-625-8601 Fax: 970-625-8627
Email: roadandbridge@garfield-county.com
Garfield County Driveway Permit Requirements
Information required by Garfield County Road & Bridge for driveway permits or
exemption letters:
State your request (driveway permits vs. exemption).
Legal Description; lot & block # preferred, meets & bounds if necessary.
Plat or sketch, showing driveway location and any easements (must show nearest County
Road and be easily readable).
Owner’s mailing address, phone, and email.
Subcontractor (if applicable) with phone number.
Be prepared to show your property pins/corners.
Quick reference guideline for new or change of use driveways.
Only one access per parcel (unless need demonstrated).
90 degree intersection with County Road for first 30 feet.
3 % maximum grade for first 30 feet.
4” thick hot asphalt or concrete apron if County Road is paved or chip sealed.
300 feet visibility in both directions.
Corrugated steel culvert if a road ditch is crossed.
Driveway runoff must not reach County Road.
Completed and signed permit must be obtained prior to commencing work and permit
must be kept on jobsite for the entire duration of the project.
All work must be completed within 90 days of permit issuance.
The Road and Bridge office will issue the permit. It can be picked up at the above address,
emailed, or faxed upon receipt of payment.
Make checks out to Garfield County Road and Bridge, please include permit number on
your check.
We also accept Visa & MasterCard. Garfield County does not retain credit card
information.
229
Garfield County Road and Bridge
0298 CR 333A
Rifle, CO 81650
PH: 970-625-8601 Fax: 970-625-8627
Email: roadandbridge@garfield-county.com
Driveway Permit Application
Permit Fee: $75.00
1.Property Owner:
2.Mailing Address:
3.City, State, Zip:
4.Phone No: Email:
5.Sub-contractor:Phone:
6.Estimated Start Date:
7. County Road No:
8.Nearest Intersection or Address:
9.Distance from Int. or Address:
10.Direction from Int. or Address: N E S W
11.Side of Road: N E S W
12.Width of apron:30-foot 40-foot 100-foot Other:
13. Culvert Required: Yes No
14.Size of culvert required:12-inch 15-inch 18-inch Other:
15. Length of Culvert:30-foot 40-foot 100-foot Other:
16.Asphalt or concrete pad required: Yes No
17.Size of Pad:30-foot wide X 10-foot long X 4 inches thick
40-foot wide X 10-foot long X 4 inches thick
100-foot wide X 20-foot long X 4 inches thick
Not applicable
230
18.Gravel Recommended: Yes No
**Gravel recommended so as to not track mud onto County Road.
19. Length of gravel portion:40-foot 50-foot 100-foot
20.Trees of brush removed for visibility: Yes No
21.Distance and direction from driveway to be removed:
22.Driveway must be no more than 3 % slope away from County Road.
23.Driveway must be constructed so that no drainage accesses the County Road.
24.Certified traffic control required: Yes No
25.Work zone signage only required: Yes No
26.Stop sign required at entrance to County Road: Yes No
27.Inspection of driveway will be required upon completion and must be approved by Garfield
County Road and Bridge.
28.Person Requesting Permit:
29.Person approving Permit:
30.Date approved:
Payment Information
Check Visa MasterCard
Name of Cardholder:
Billing Address:
Card Number: / / / / / / / / / / / /
Expiration Date: / V Code (last 3 or 4 numbers on back of card)
Signature Required:
Authorized Card Holder Signature
X 140-foot
231
PROPOSED COUNTY ROAD APPROACH
LATITUDE 39° 32' 23.24"
LONGITUDE -108° 19' 23.35"
(NAD 83)
These plans may not identify all utility lines!Utility lines within the vicinity of this proposalmust be identified prior to construction.
CONTENTS
GENERAL NOTES............................................................... 1GEOMETRIC STANDARDS............................................... 2
TRAFFIC CONTROL PLANS....................................... T1-2PLAN & PROFILE.............................................................. P1
ACCESS ROAD COVER
UELS, LLC
Corporate Office * 85 South 200 East
Vernal, UT 84078 * (435) 789-1017
ENGINEERING & LAND SURVEYING
1" = 2,000'
SCALEDRAWN BY A.T. 07-10-23
CHEVRON U.S.A. INC.SKR #698-10-BV PAD
PROPOSED COUNTY ROAD APPROACH
LOCATED IN: SEC. 15, T6S, R98W, 6th P.M.
GARFIELD COUNTY, COLORADO
COL
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T6S
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W
RESPONSIBLE ENGINEERRESPONSIBLE ENGINEER
REVISED BY A.T. 02-27-24
EXISTING LOCATION:
SKR #698-10-BV PAD
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EXISTING ACCESS ROAD
232
All materials for construction of the complete project including but not limited to rip-rap, water for dust control and compaction, culverts,
bedding materials for culverts, surface course gravel, signs, etc. are to be provided by the contractor at his bid price unless other
arrangements are made.
Construction of the approach from the county road must conform to current AASHTO and Garfield County standards. An access permit
must be obtained for this approach prior to beginning construction. During construction, the contractor will follow all signage and flagging
requirements as stated in the Manual of Uniform Traffic Control Devices latest edition.
Uintah Engineering and Land Surveying assumes no liability written or implied as to the location of pipelines or cable lines in the vicinity
of this road design. Colorado 811 (public lines) and or the owner of the transportation line (Private/Corporate lines) must be contacted for
identification and location before construction begins. Transportation lines that may be identified on these plans may not be the only
transportation lines in the vicinity of the road. These plans are not intended to be used to identify the location of transportation lines.
Extreme caution shall be used when constructing road near or over transportation lines.
EXPLANATIONS:
PLAN & PROFILE SHEETS
Plan & Profile sheets show the horizontal and vertical alignment of the road, sign placement if any, turnout placement if any, estimated
culvert placements and sizes, estimated wing ditches, horizontal and vertical curve data, and the percent super for construction of horizontal
curves.
SCOPE OF WORK:
SHAPING THE ROADWAY
The roadway is to be shaped to the dimensions shown on the typical cross section included in this document. Care shall be given to ensure
that the travel-way width is not less or significantly more than the dimensions given on the typical cross section. Where turnouts are
indicated, the typical section widths shown on the typical cross section will need to be modified by the amounts shown on the typical
turn-out. Where there are horizontal curves, super-elevations will be constructed to the percentages shown on the plan and profile sheets.
One-third of the super transition occurs on the curve and two-thirds on the tangent.
Topsoil will be handled in the manner agreed upon and stated within the APD and the conditions of approval. If topsoil is to be moved;
Topsoil will be peeled back during construction. Some over-excavation of cut slopes and bar ditches will provide needed material for road
construction. Topsoil will then be spread back over the cut and fill slopes and bar ditches.
The road shall have a crown as shown on the typical cross section to ensure that water will drain off of the travel-way surface.
UELS, LLCCorporate Office * 85 South 200 EastVernal, UT 84078 * (435) 789-1017 1GENERAL NOTES233
4:1
-2% SlopeTAPER
2.0'12'
-2% Slope
6" Gravel Surface
Course
2:1
CUT SECTION FILL SECTION
4:1 1'
28'
4'12'2.0'
24'
TAPER
Top of Sub-Base
GRAVEL SPECIFICATION:
3:1 3:1
WING DITCH (DETAIL)
SURFACE
SUBGRADE
2:1 4:1
RIP-RAP IN BAR DITCH
(Only Where Specified)
RIP-RAP IN WING DITCH (DETAIL)
3:13:1
(Only Where Specified)
GEOMETRIC SPECIFICATIONS
3" minus pit run gravel (AASHTO
M145-49 A-1-a Soil)
Do not place gravel on road until
Inspector/Engineer has approved the
sub-grade.
Place gravel to full widened width on
turnouts, curve widening, and intersection
flares.
UELS, LLCCorporate Office * 85 South 200 EastVernal, UT 84078 * (435) 789-1017
ENGINEERING & LAND SURVEYING
2GEOMETRIC STANDARDS
TYPICAL CROSS SECTIONS
(Sec. "A")
(for Proposed Access Road)
234
ONE LANE
ROAD
AHEAD
ROAD
WORK
AHEAD
A
100'
BUFFER
SPACE
(OPT.)
A
WORK
ZONE
YIELD
TO
ONCOMING
TRAFFIC
A
15'
100'
BUFFER
SPACE
(OPT.)
END
ROAD WORK
END
ROAD WORK
ONE LANE
ROAD
AHEAD
ROAD
WORK
AHEAD
A
A
NOTE:
1) TO BE USED FOR TWO LANE ROADS
THAT HAVE LOW TRAFFIC VOLUME.
2) LANE CLOSURES ARE ONLY DAWN TO
DUSK.
3) BOTH LANES MUST REMAIN OPEN TO
TRAFFIC AT NIGHT.
4) BARRIERS WITH REFLECTING TAPE MUST
BE USED AT NIGHT.
A
Distance Between Signs
100'
Road Type
Urban (low speed)*
Urban (high speed)*
Rural
350'
500'
* Source: MUTCD 2009
WORK WITHIN TRAVELWAY - LOW TRAFFIC VOLUME
UELS, LLCCorporate Office * 85 South 200 EastVernal, UT 84078 * (435) 789-1017
ENGINEERING & LAND SURVEYING
T1TRAFFIC CONTROL PLAN235
UELS, LLCCorporate Office * 85 South 200 EastVernal, UT 84078 * (435) 789-1017
ENGINEERING & LAND SURVEYING
T2TRAFFIC CONTROL PLAN
ROAD
WORK
AHEAD
A
WORK
ZONE
NOTE:
1) TO BE USED WHEN WORKING BEYOND
THE SHOULDER.
A
Distance Between Signs
100'
Road Type
Urban (low speed)*
Urban (high speed)*
Rural
350'
500'
* Source: MUTCD 2009
WORK BEYOND THE SHOULDER - WITHIN RIGHT-OF-WAY
236
"A"
GRADE
%
TYP.
SECTION
BASIS OF BEARINGS IS THE NORTH LINE OF
SECTION 15, T6S, R98W, 6th P.M. WHICH WAS
ASSUMED TO BEAR N89°33'38"W FOR 5442.97'.
PROPOSED
WELL PAD
NOTE:
1. BEGIN PROFILE STATION 0+00 BEARS S79°32'39"E, 861.63' FROM THE
NORTHWEST CORNER OF SECTION 15, T6S, R98W, 6th P.M.
2. END PROFILE STATION 1+50 BEARS S86°50'29"E, 957.23' FROM THE
NORTHWEST CORNER OF SECTION 15, T6S, R98W, 6th P.M..
3. USE EXTREME CAUTION WHEN CONSTRUCTING APPROACH NEAR
EXISTING PIPELINE. EXISTING PIPELINE MIGHT NEED TO BE BURIED
DEEPER. CONTACT PIPELINE OWNER FOR SPECIFICATIONS.
ENGINEERING & LAND SURVEYING
P
1
0'25
'
50
'
Centerline of Proposed
Additional Access Road
END PROFILE
STA: 1+50
BEGIN PROFILE
STA: 0+00
LATITUDE 39° 32' 23.24"
LONGITUDE -108° 19' 23.35"
(NAD 83)
CHEVRON U.S.A. INC.
SKR #698-10-BV PAD
(PROPOSED COUNTY ROAD APPROACH)
PLAN & PROFILE
SEC. 15, T6S, R98W, 6th P.M.
GARFIELD COUNTY, COLORADO
DATE: 07-10-23 BY: A.T.
REV: 02-27-24 A.T. (SHOW CULVERT)
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-3.0+12.0-1.0
EDGE OF
WELL PAD
Proposed
18"x46' CMP
237
APPENDIX K
ECMC FORM 2A AND
EXHIBITS
SKR 698‐10‐BV Pad
Township 6 South, Range 98 West, 6th PM
Sections 10 & 15: Tract 72
Garfield County, Colorado
238
EXHIBITS INCLUDED
DOCUMENTS RULE COMMENTS
ECMC Form 2A SubmiƩal 304.a.
Document Number 403606035, SubmiƩed 12/7/23
Cultural Distances
304.b.(3)
Table included within the ECMC Form 2A and on
the Cultural Features Map.
LocaƟon Pictures 304.b.(4)
Site Equipment List 304.b.(5) Included within the ECMC Form 2A and on the
Facility Layout Drawing.
Flowline DescripƟons 304.b.(6) Included within the ECMC Form 2A.
LocaƟon Drawings 304.b.(7)(A)
Layout Drawings
304.b.(7)(B)
ConstrucƟon Layout, Drill Rig Layout, Frac Layout,
Facility Layout, Interim ReclamaƟon Layout
included.
Wildlife Habitat Drawing 304.b.(7)(C)
Hydrology Map 304.b.(7)(E)
Access Road Map 304.b.(7)(F)
Related LocaƟon and Flowline Map 304.b.(7)(G)
Geologic Hazard Map 304.b.(7)(I)
DisproporƟonately Impacted CommuniƟes
Map
304.b.(7)(J)
Geographic InformaƟon System Data 304.b.(8) How do we include this?
Land Use DescripƟon and Reference Area
Data
304.b.(9)
Land use descripƟon included within the ECMC
Form 2A. Reference Area Maps and Pictures also
included in this exhibit.
NRCS Map Unit DescripƟon 304.b.(10)
Best Management PracƟces
304.b.(11)
Chevron proposed BMPs are included within the
ECMC Form 2A Plans within Appendix L as well as
the ECMC Form 2B in within Appendix M.
Surface Owner InformaƟon
304.b.(12) Included within the ECMC Form 2A. Chevron is the
Surface Owner, the Ownership Deed is included in
Appendix D.
Proximate Local Government InformaƟon 304.b.(13) Included within the ECMC Form 2A.
Wetlands
304.b.(14) Ther are no required wetlands permits necessary.
The nearest wetland is 2,640’ SW of the Working
Pad Surface.
Schools and Childcare Centers 304.b.(15) This rule does not apply; there are no schools or
childcare centers within 2,000’.
239
State of Colorado
Energy & Carbon Management Commission
1120 Lincoln Street, Suite 801, Denver, Colorado 80203
Phone: (303) 894-2100 Fax: (303) 894-2109
Oil and Gas Location Assessment
FORM
2A
Rev
05/22
This Oil and Gas Location Assessment is to be submitted to the COGCC for approval prior to any ground
disturbance activity associated with oil and gas operations. Approval of this Oil and Gas Location
Assessment will allow for the construction of the below specified Location; however, it does not supersede
any land use rules applied by the local land use authority. Please see the COGCC website at
https://cogcc.state.co.us/ for all accompanying information pertinent this Oil and Gas Location Assessment.
Document Number:
403606035
12/07/2023
Date Received:
This Location includes a Rule 309.e.(2).E variance request.
This Location is within 2,640 feet of a GUDI or Type III Well per Rule 411.b.(4).
This Location or its associated new access road, utility, or Pipeline corridor meets Rule 309.e.(2).A, B, or C.
CONSULTATION
This location is included in a Comprehensive Area Plan (CAP). CAP ID #
This location includes a Rule 309.f.(1).A.ii. variance request.
DougDennison@Chevron.com
(970) 270 2853
( )
Doug Dennison
email:
Fax:
Phone:
Contact Information
Name:
81506 CO Zip:State:GRAND JUNCTION
760 HORIZON DRIVE STE 401
CHEVRON USA INC
16700
City:
Address:
Name:
Operator
Operator Number:
FINANCIAL ASSURANCE FOR THIS LOCATION (check all that
apply)
Plugging, Abandonment, and Reclamation 19810003
Gas Gathering, Gas Processing, and Underground Gas Storage Facilities
Centralized E&P Waste Management Facility
X
Federal Financial Assurance
In checking this box, the Operator certifies that it has provided or will provide at least this amount of Financial Assurance to the
federal government for one or more Wells on this Location.
Amount of Federal Financial Assurance $
Surface Owner Protection Bond.
New Location Refile Amend Existing Location #
If this Location assessment is a component of an Oil and Gas Development Plan (OGDP) application, enter the OGDP docket number(s).
Docket Number OGDP ID OGDP Name
231200362
If this Location assessment is part of an approved Oil and Gas Development Plan, enter the OGDP ID number(s).
<No existing OGDP number provided>
X 336056
Pad Number:SKR 698-10-BVName:
LOCATION IDENTIFICATION
Expiration Date:
Location ID:336056
OGDP ID:
Page 1 of 15Date Run: 12/7/2023 Doc [#403606035]240
06/29/20231.9 Date of Measurement:GPS Quality Value:
5833698W 6S 10 Ground Elevation:Meridian:Township:SWSW QuarterQuarter:Section:
Provide the location description and the latitude and longitude of a single point near the center of the Working Pad Surface as a
reference for this Location.
Range:
Type of GPS Quality Value:PDOP
Latitude:39.540312 Longitude:-108.321827
RELEVANT LOCAL GOVERNMENT SITING INFORMATION
GARFIELD Municipality:
Per § 34-60-106 (1)(f)(I)(A), the following questions pertain to the “Relevant Local Government approval of the siting of the
proposed oil and gas location.”
N/ACounty:
This proposed Oil and Gas Location is in an area designated as one of State interest and subject to the
requirements of § 24-65.1-108, C.R.S.
Yes
Does the Relevant Local Government regulate the siting of Oil and Gas Locations, with respect to this location?Yes
A siting permit application has been submitted to the Relevant Local Government for this proposed Oil and Gas Location:Yes
Date Relevant Local Government permit application submitted:09/11/2023
Current status or disposition of the Relevant Local Government permit application for this proposed Oil and Gas Location:In
Process
Status/disposition date:10/12/2023
If Relevant Local Government permit has been approved or denied, attach final decision document(s).
Provide the contact information for the Relevant Local Government point of contact for the local permit associated with this proposed
Oil and Gas Location:
Kirby H. WynnContact Name:Contact Phone:(970) 625 5905
Contact Email:KWynn@Garfiled-County.com
PROXIMATE LOCAL GOVERNMENT INFORMATION
For every Proximate Local Government (PLG) associated with this proposed Oil and Gas Location, provide the PLG’s point of
contact and their contact information.
< No row provided >
(Enter as many Related Locations as necessary. Enter the Form 2A document # only if there is no established COGCC Location ID#)
Well Site is served by Production Facilities 336050
This proposed Oil and Gas Location is:LOCATION ID #FORM 2A DOC #
RELATED REMOTE LOCATIONS
FEDERAL PERMIT INFORMATION
A Federal drilling permit (or related siting application) has been submitted for this proposed Oil and Gas Location: No
Date submitted:
Current status or disposition of the Federal drilling permit (or related siting application) for this proposed Oil and Gas
Location:
Status/disposition Date:
If Federal agency permit has been approved or denied, attach the final decision document(s).
Provide the contact information of the Federal point of contact for the Federal permit associated with this proposed Oil and Gas Location.
Contact Name:Contact Phone:
Contact Email:Field Office:
Page 2 of 15Date Run: 12/7/2023 Doc [#403606035]241
Additional explanation of local and/or federal process:
Chevron has completed the Pre-Application process with Garfield County under application Skinner Ridge (SKR) 698-10-BV Pad.
Additional details are available within the Consultation Summary attachments.
No
10/12/2023Date of local government consultation:
Complete this section for any pre-application consultation related to this proposed Oil and Gas Location that occurred prior to the
submission of this Form 2A. If a pre-application Formal Consultation Process occurred, attach a Consultation Summary.
RELEVANT LOCAL GOVERNMENT OR FEDERAL PRE-APPLICATION CONSULTATION
Did a pre-application Formal Consultation Process occur with the Federal land manager per Rule 301.f.(3)?
Did a pre-application Formal Consultation Process occur with the Relevant Local Government per Rule 301.f.(3)?Yes
Date of federal consultation:
Was an ALA that satisfies Rule 304.b.(2).C (or substantially equivalent information per Rule 304.e) developed during a
federal or local government permit application process? If yes, attach the ALA to the Form 2A.
Yes
Complete this section for any pre-application consultation related to this proposed Oil and Gas Location that occurred prior to the
submission of this Form 2A. If a pre-application Formal Consultation Process occurred, attach a Consultation Summary.
ALA APPLICABILITY AND CRITERIA
If YES, indicate by checking the box for every Rule 304.b.(2).B criterion met by this proposed Location, and attach an ALA. See Rule
304.b.(2).B.i-x for full text of criteria.
Does the proposed Oil and Gas Location meet any of the criteria listed in Rule 304.b.(2)B?Yes
i. WPS < 2,000 feet from RBU/HOBU
ii. WPS < 2,000 feet from School/Child Care Center
iii. WPS < 1,500 feet from DOAA
iv. WPS < 2,000 feet from jurisdictional boundary and
PLG objects/requests ALA
v. WPS within a Floodplain
vi.aa. WPS within a surface water supply area
vi.bb. WPS < 2,640 feet from Type III or GUDI well
vii. WPS within/immediately upgradient of wetland/riparian corridor
viii. WPS within HPH and CPW did not waive
ix. Operator using Surface bond
X
x. WPS < 2,000 feet from RBU/HOBU/School within a DIC
X
Is the proposed Oil and Gas Location within the exterior boundaries of the Southern Ute Indian Reservation, and the Tribe
objects to the Location or requests an ALA? If YES, attach an ALA to the Form 2A.
Operator requests the Director waive the ALA requirement per Rule 304.b.
(2).A.i:
No
Provide an explanation for the waiver request, and attach supporting information (if necessary).
Page 3 of 15Date Run: 12/7/2023 Doc [#403606035]242
ALTERNATIVE LOCATIONS DASHBOARD
List every alternative location reviewed and included in the ALA. Provide a latitude and longitude for the approximate center of the
alternative location, all Rule 304.b.(2).B Criteria met, if a variance would be required to permit the location, and a brief comment on the
key points of the alternative location.
#latitude longitude i ii iii iv v vi vii viii ix x Variance
Required?Comments
39.538721 -108.325703 x x Tier IV-B. Alternate Location 4 on
Narrative and Map.
39.567427 -108.337206 x x Tier IV-B. Alternate Location 6 on
Narrative and Map.
39.542650 -108.320672 x x Tier IV-A. Alternate Location 2 on
Narrative and Map.
39.551267 -108.329444 x x Tier IV-B. Alternate Location 5 on
Narrative and Map.
39.543102 -108.311161 x x Tier IV-A. Alternate Location 3 on
Narrative and Map.
39.567759 -108.323488 x Tier III-A. Alternate Location 1 on
Narrative and Map.
39.569193 -108.314118 x x Tier IV-B. Alternate Location 7 on
Narrative and Map.
304.b.(2).B.i-x Criteria Met:
SURFACE & MINERAL OWNERSHIP
Name:Chevron USA INC Phone:
Fax:PO Box 285
Address:
Address: Email:Ryan.Antonio@Chevron.com
City:Houston State:TX Zip:77001
Surface Owner Info:
X IndianFederalStateFeeSurface Owner at this Oil and Gas Location:
All operations on this Oil & Gas Location will develop the minerals beneath the Location, and the
Operator intends to use a surface bond per Rule 703 to secure access to this Location – attach lease
map or provide lease description.
All operations on this Oil & Gas Location will develop the minerals beneath the Location, and the
surface owner owns the minerals beneath this Location and is committed to an oil and gas lease –
attach lease map or provide lease description.
The Operator has a signed Surface Use Agreement for this Location – attach SUA.
The Operator/Applicant is the surface owner. Check only one:X
Minerals beneath this Oil and Gas Location will be developed from or produced to this Oil and Gas Location:
Mineral Owner beneath this Oil and Gas Location:
Surface Owner protection Financial Assurance type:Surety ID Number:
Lease description if necessary:N/A
X IndianFederalStateFee
Yes
N/A
Wells
Indicate the number and type of major equipment components planned for use on this Oil and Gas Location:
SITE EQUIPMENT LIST
2 Oil Tanks 0 Condensate Tanks 0 Water Tanks 0 Buried Produced Water Vaults 0
Page 4 of 15Date Run: 12/7/2023 Doc [#403606035]243
Drilling Pits 0
Pump Jacks 0
Gas or Diesel Motors 0
Dehydrator Units 0
Production Pits 0
Separators 2
Electric Motors 0
Vapor Recovery Unit 0
Special Purpose Pits 0
Injection Pumps 0
Electric Generators 2
VOC Combustor 0
Multi-Well Pits 0
Heater-Treaters 0
Fuel Tanks 0
Flare 0
Modular Large Volume Tank 0
Gas Compressors 0
LACT Unit 0
Enclosed Combustion Devices 0
Pigging Station 2Meter/Sales Building 0 Vapor Recovery Towers 0
OTHER PERMANENT EQUIPMENT
Permanent Equipment Type Number
Chemical Injection Skids 1
Maintenance Tank 1
Ultrasonic Sales Gas Meter 1
Transformer 1
Instrument Air Skid 1
Solar Skids 1
Battery Box 1
Communication Tower 1
Scrubbers 1
A1 Pipe Skid 1
Heat Trace Equipment (Op. Comment)1
Electric Heat Trace Switchracks 1
Skid Drain Vaults 1
OTHER TEMPORARY EQUIPMENT
< No Row Provided >
FLOWLINE DESCRIPTION
Per Rule 304.b.(6), provide a description of all onsite and off-location oil, gas, and/or water flowlines.
Four (4): 2"-12" Steel or Composite Three-Phase Flowlines
One (1): 8-16” Steel or Composite Gas Line
One (1): 6” Steel or Composite Fiberspar Liquids Line
One (1): 14" Temporary Lay Flat Water Line
Two (2): 2" Poly Instrument Air Lines
GAS GATHERING COMMITMENT
Operator commits to connecting to a gathering system by the Commencement of Production Operations?
If the answer is NO, a Gas Capture Plan consistent with the requirements of Rule 903.e MUST be attached on the Plans tab.
Yes
Provide the distance and direction to the nearest cultural feature as measured from the edge of the Working Pad Surface.
Building:683 Feet
Designated Outside Activity Area:5280 Feet
Public Road:68 Feet
CULTURAL DISTANCE AND DIRECTION
Distance
NE
SE
SW
Direction
Rule 604.b Conditions Satisfied
(check all that apply):
604.b.
(1)Details of Condition(s)
604.b.
(2)
604.b.
(3)
604.b.
(4)
Residential Building Unit (RBU):5280 Feet S
High Occupancy Building Unit(HOBU)5280 Feet SE
Page 5 of 15Date Run: 12/7/2023 Doc [#403606035]244
Above Ground Utility:38 Feet
Railroad:5280 Feet
Property Line:75 Feet
SE
SE
N
School Facility:5280 Feet
Child Care Center:5280 Feet
SE
SE
Disproportionately Impacted (DI)
Community:
0 Feet N
SEFeet5280RBU, HOBU, or School Facility
within a DI Community.
RULE 604.a.(2). EXCEPTION LOCATION REQUEST
Operator requests an Exception Location Request from Rule 604.a.(2) [well is less than 150 feet from a property line]. Exception
Location Request Letter and Waiver signed by offset Surface Owner(s) must be attached.
CULTURAL FEATURE INFORMATION REQUIRED BY
RULE 304.b.(3).B.
Provide the number of each Cultural feature identified within the following distances, as measured from the Working Pad Surface:
Building Units
Residential Building Units
High Occupancy Building Units
School Properties
School Facilities
Designated Outside Activity Areas 0
0
0
0
0
0
0-500 feet
0
0
0
0
0
0
501-1,000 feet
0
0
0
0
0
0
1,001-2,000 feet
Will a closed-loop drilling system be used?
Is H2S gas reasonably expected to be encountered during drilling operations at concentrations greater than
Will salt based (>15,000 ppm Cl) drilling fluids be used?
Will salt sections be encountered during drilling:
Estimated post-construction ground elevation:
Size of location after interim reclamation in acres:
6.86Size of disturbed area during construction in
acres:
CONSTRUCTION
2.35
DRILLING PROGRAM
Yes
No
Will oil based drilling fluids be used?Yes
5833
or equal to 100 ppm?If YES, attach H2S Drilling Operations Plan.No
No
Page 6 of 15Date Run: 12/7/2023 Doc [#403606035]245
Drilling Fluids Disposal:
DRILLING WASTE MANAGEMENT PROGRAM
OFFSITE Commercial DisposalDrilling Fluids Disposal Method:
Cutting Disposal:OFFSITE Commercial DisposalCuttings Disposal Method:
Other Disposal Description:
Beneficial reuse or land application plan submitted?No
Reuse Facility ID:or Document Number:
Centralized E&P Waste Management Facility ID, if applicable:
CURRENT LAND USE
Other
Residential
RecreationForestry
CommercialIndustrial
Rangeland
Conservation Reserve Program (CRP)Non-IrrigatedIrrigated
Subdivided:
Non-Crop Land:
Crop Land:
Current Land Use: check all that apply per Rule 304.b.(9).
X
Describe the current land use:
Rangeland, existing storage pad.
Describe the Relevant Local Government’s land use or zoning designation:
Resource Lands
Describe any applicable Federal land use designation:
N/A
Other
Residential
RecreationForestry
CommercialIndustrial
Rangeland
Conservation Reserve Program (CRP)Non-IrrigatedIrrigated
Subdivided:
Non-Crop Land:
Crop Land:
Final Land Use: check all that apply per Rule 304.b.(9).
X
FINAL LAND USE
Reference Area Latitude:
If Final Land Use includes Non-Crop Land (as checked above), the following information is
required:
Describe landowner’s designated final land use(s):
REFERENCE AREA INFORMATION
Rangeland.
39.539335 -108.321337Reference Area Latitude:
Provide a list of plant communities and dominant vegetation found in the Reference Area.
Page 7 of 15Date Run: 12/7/2023 Doc [#403606035]246
Plant Community Dominant vegetation
Native Grassland Inland Saltgrass
Native Grassland Big Sagebrush
Native Grassland Nuttall's Alkaligrass
Native Grassland Bottlebrush Squirreltail
Native Grassland Winterfat
Native Grassland Alkali Bluegrass
Native Grassland Mat Saltbush
Native Grassland Greasewood
Native Grassland Western Wheatgrass
Native Grassland Indian Ricegrass
Noxious weeds present:No
SOILS
List all soil map units that occur within the maximum extent of the proposed Oil and Gas Location. Attach the National
Resource Conservation Service (NRCS) report showing the "Map Unit Description" listing the typical vertical soil profile(s).
This data is to be used when segregating topsoil.
The required information can be obtained from the NRCS website at
https://www.nrcs.usda.gov/wps/portal/nrcs/surveylist/soils/survey/state/ or from the COGCC website GIS Online map
page. Instructions are provided within the COGCC website help section.
NRCS Map Unit Name:44 - Happle very channery sandy loam, 3 to 12 percent slopes
NRCS Map Unit Name:46 - Happle-Rock outcrop association, 25 to 65 percent slopes
NRCS Map Unit Name:
GROUNDWATER AND WATER WELL INFORMATION
Provide the distance and direction, as measured from the Working Pad Surface, to the nearest:
water well:1201 Feet W
Spring or Seep:5280 Feet NW
Estimated depth to shallowest groundwater that can be encountered at this Oil and Gas Location:Feet
Basis for estimated depth to and description of shallowest groundwater occurrence:
Depth to groundwater taken from water well permit 67475-F.
65
SURFACE WATER AND WETLANDS
Provide the distance and direction to the nearest downgradient surface Waters of the State, as defined
in the 100-Series Rules, measured from the Working Pad Surface:
Nearest surface water is a Riverine Habitat 148 feet southeast of the location, that was field verified by a third-party surveyor.
Feet SE148
If less than 2,640 feet, is the Waters of the State identified above within 15 stream miles upstream of a Public Water
System intake?No
Provide the distance and direction to the nearest downgradient wetland, measured from the Working
Provide a description of the nearest downgradient surface Waters of the State:
If the proposed Oil and Gas Location is within a Rule 411.a Surface Water Supply Area buffer zone, select the buffer
Pad Surface:SWFeet2640
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If the proposed Oil and Gas Location is within a Rule 411.b GUDI/Type III buffer zone, select the buffer
Is a U.S. Army Corps of Engineers Section 404 permit required for the proposed Oil and Gas Location, access road, or
If a U.S. Army Corps of Engineers Section 404 permit is required, provide the permit status, and permit number if available:
zone type:
associated pipeline corridor?No
zone type:
Public Water System Administrator - Contact Name Email
Public Water System Administrator - Contact Name Email
Is the Location within a Floodplain?No Floodplain Data Sources Reviewed (check all that apply):
Federal (FEMA)X State County Local
Does this proposed Oil and Gas Location lie within a Sensitive Area for water resources, as defined in the
Yes
Other
100-Series Rules?
CONSULTATION, WAIVERS, AND EXCEPTIONS
This Oil and Gas Location or associated new access road, utility, or pipeline corridor falls within federally designated
critical habitat or an area with a known occurrence for a federal or Colorado threatened or endangered species.
Provide description in Comments section of Submit tab.
X
When Rule 309.e.(2) Consultation must occur, check all that apply:
This location is included in a Wildlife Mitigation Plan
This Oil and Gas Location or associated new access road, utility, or pipeline corridor falls within an existing
conservation easement established wholly or partly for wildlife habitat. Provide description in Comments section of
Submit tab.
When Rule 309.e.(3) Consultation is not required, check all that apply:
This Oil and Gas Location has been included in a previously approved, applicable Wildlife Protection Plan.
This Oil and Gas Location has been included in a previously approved, applicable Wildlife Mitigation Plan.
This Oil and Gas Location has been included in a previously approved, applicable conservation plan.
Pre-application Consultation:
X A pre-application consultation with CPW, regarding this Oil and Gas Location, occurred
on:
10/12/2023
CPW Waivers and Exceptions (check all that apply and attach all CPW waivers to this
Form 2A):
The applicant has obtained a Rule 304.b.(2).B.viii CPW waiver for the requirement to complete an ALA.
The applicant has obtained a Rule 309.e.(2).G CPW waiver and consultation is not required.
The applicant has obtained a Rule 309.e.(5).D.i CPW waiver and is requesting an exception from Rule 1202.c.
(1).R.
X The applicant has obtained a Rule 309.e.(5).D.ii CPW waiver and is requesting an exception from Rule 1202.c.
(1).S.
The applicant has obtained a Rule 309.e.(5).D.iii CPW waiver of Rule 1202.c.(1).T.
The applicant has obtained a Rule 309.e.(5).D.iv CPW waiver and is requesting an exception from Rule 1202.c.(1)
in accordance with an approved CAP.
Page 9 of 15Date Run: 12/7/2023 Doc [#403606035]248
No BMP
Operator Proposed Wildlife BMPs
No BMP
CPW Proposed Wildlife BMPs
X The applicant has obtained a Rule 1202.a CPW waiver.
The applicant has obtained a Rule 1202.b CPW waiver.
In accordance with Rule 1203.a.(3), the applicant requests an exception from compensatory mitigation
Rule(s):
HIGH PRIORITY HABITAT AND COMPENSATORY MITIGATION
This Oil and Gas Location, associated access roads, utility, or Pipeline corridor falls wholly or partially within the following
High Priority Habitats (Note: dropdown options are abbreviated - see Rule 1202 for full rule text):
High Priority Habitat (list all that apply)
Oil and Gas
Location Access Road
Utility or Pipeline
Corridor
1202.c.(1).S - Sportfish mgmt waters, non-Gold
Medal x x
1202.d.(2) - Elk migration & winter x x x
The following questions are for Oil and Gas Locations that cause the density to exceed one Oil and Gas Location per
square mile in Rule 1202.d High Priority Habitat:
Direct Impacts:
Is Compensatory Mitigation required per Rule 1203.a for this Oil and Gas Location?
Is a Compensatory Mitigation Plan proposed to address direct impacts for this Oil and Gas Location?
Have all Compensatory Mitigation Plans been approved for this
Location?
If not, what is the current status of each Plan?
N/A
Is a Compensatory Mitigation Fee proposed for this Oil and Gas Location?
Direct impact habitat mitigation fee amount: $
Yes
Yes
Yes
13750
Yes
Indirect Impacts:
Is a Compensatory Mitigation Plan proposed to address indirect impacts for this Oil and Gas Location?
Have all Compensatory Mitigation Plans been approved for this
Location?
If not, what is the current status of each Plan?
N/A
Is a Compensatory Mitigation Fee proposed for this Oil and Gas Location?
Indirect impact habitat mitigation fee amount: $
Yes
Yes
Yes
No
Is Compensatory Mitigation required per Rule 1203.d for this Oil and Gas Location?
AIR QUALITY MONITORING PROGRAM
Will the Operator install and administer an air quality monitoring program at this Location?Yes
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No BMP
Operator Proposed BMPs
CDPHE Proposed COAs OR BMPs
No BMP
PLANS
Total Plans
Uploaded:
13
(1) Emergency Spill Response Program consistent with the requirements of Rules 411.a.(4).B, 411.b.(5).B, & 602.j
(2) Noise Mitigation Plan consistent with the requirements of Rule 423.a
(3) Light Mitigation Plan consistent with the requirements of Rule 424.a
(4) Odor Mitigation Plan consistent with the requirements of Rule 426.a
(5) Dust Mitigation Plan consistent with the requirements of Rule 427.aX
X (6) Transportation Plan
X (7) Operations Safety Management Program consistent with the requirements of Rule 602.d
X (8) Emergency Response Plan consistent with the requirements of Rule 602.j
(9) Flood Shut-In Plan consistent with the requirements of Rule 421.b.(1)
(10) Hydrogen Sulfide Drilling Operations Plan consistent with the requirements of Rule 612.d
(11) Waste Management Plan consistent with the requirements of Rule 905.a.(4)X
(12) Gas Capture Plan consistent with the requirements of Rule 903.e
(13) Fluid Leak Detection PlanX
(14) Topsoil Protection Plan consistent with the requirements of Rule 1002.cX
(15) Stormwater Management Plan consistent with the requirements of Rule 1002.fX
X (16) Interim Reclamation Plan consistent with the requirements of Rule 1003
X (17) Wildlife Plan consistent with the requirements of Rule 1201
X (18) Water Plan
X (19) Cumulative Impacts Plan
(20) Community Outreach Plan
X (21) Geologic Hazard Plan
VARIANCE REQUESTS
Check all that apply:
This proposed Oil and Gas Location requires the approval of a Rule 502.a variance from COGCC Rule or Commission
Order number:
ALL exceptions and variances require attached Request Letter(s). Refer to applicable rule for additional required attachments (e.g.
waivers, certifications, SUAs).
Page 11 of 15Date Run: 12/7/2023 Doc [#403606035]250
RULE 304.d LESSER IMPACT AREA EXEMPTION REQUESTS
Check the boxes below for all Exemptions being requested. Lesser Impact Area Exemption Request must be attached, and will include all
requested exemptions.
304.b.(1). Local Government Siting Information
304.b.(2). Alternative Location Analysis
304.b.(3). Cultural Distances
304.b.(4). Location Pictures
304.b.(5). Site Equipment List
304.b.(6). Flowline Descriptions
304.b.(7). Drawings
304.b.(8). Geographic Information System (GIS)
Data
304.b.(9). Land Use Description
304.b.(10). NRCS Map Unit Description
304.b.(11). Best Management Practices
304.b.(12). Surface Owner Information
304.b.(13). Proximate Local Government
304.b.(14). Wetlands
304.b.(15). Schools and Child Care Centers
304.c.(1). Emergency Spill Response Program
X 304.c.(2). Noise Mitigation Plan
304.c.(3). Light Mitigation Plan X
304.c.(4). Odor Mitigation Plan
304.c.(5). Dust Mitigation Plan
304.c.(6). Transportation Plan
304.c.(7). Operations Safety Management Program
304.c.(8). Emergency Response Plan
304.c.(9). Flood Shut-In Plan
304.c.(10). Hydrogen Sulfide Drilling Operations Plan
304.c.(11). Waste Management Plan
304.c.(12). Gas Capture Plan
304.c.(13). Fluid Leak Detection Plan
304.c.(14). Topsoil Protection Plan
304.c.(15). Stormwater Management Plan
304.c.(16). Interim Reclamation Plan
304.c.(17). Wildlife Plan
304.c.(18). Water Plan
304.c.(19). Cumulative Impacts Plan
304.c.(20). Community Outreach Plan
304.c.(21). Geologic Hazard Plan
Comments
OPERATOR COMMENTS AND SUBMITTAL
Page 12 of 15Date Run: 12/7/2023 Doc [#403606035]251
DougDennison@Chevron.com
Manager Dev. Permitting
12/07/2023
Doug Dennison
COGCC Approved:Director of COGCC Date:
Based on the information provided herein, this Oil and Gas Location Assessment complies with COGCC Rules, applicable orders,
and SB 19-181 and is hereby approved.
Title:
Email:Date:
Print Name:
Signed:
I hereby certify that the statements made in this form are, to the best of my knowledge, true, correct and complete.
Chevron is committed to connecting to a gathering system by the Commencement of Production Operations.
Chevron conducted a Garfield Pre-Application meeting with Garfield County on 10/12/23 and CPW staff attended the
meeting. Chevron has received a waiver from CPW for ECMC Rules 1202.c.(1).S. and 1202.a.(3). In addition, CPW has
reviewed and accepted Rule 1202.c.(2).C, as described within the CPW Waiver attachment. The proposed SKR 698-10-
BV well drill pad is an existing pad with an existing access road. The current use of this pad as an equipment storage
area results in regular vehicle traffic and activity on the site. It is not anticipated that the new wells on the pad will result in
significantly increased long-term indirect impacts. CPW has reviewed the need to off-set the unavoidable adverse indirect
impacts and decided that they will not recommend compensatory mitigation for the reasons mentioned.
The Heat Trace equipment that will be utilized to prevent freezing within the extended flowlines will utilize either a
propane tank with a small catalytic burner or an electric transformer powered by utility connections.
Completions operations on this Pad will utilize a MLVT staged on the nearby SKINNER RIDGE-66S98W/22NENW Pad,
permitted under Location ID# 324358, to the south.
Pad Soil types: 44 - Happle very channery sandy loam, 3 to 12 percent slopes; 46 - Happle-Rock outcrop association, 25
to 65 percent slopes
Access Soil types: 44 - Happle very channery sandy loam, 3 to 12 percent slopes
Flowline Corridor Soil types: 28 - Cumulic Haploborolls, 1 to 3 percent slopes; 44 - Happle very channery sandy loam, 3
to 12 percent slopes; 45 - Happle very channery sandy loam, 12 to 25 percent slopes; 46 - Happle-Rock outcrop
association, 25 to 65 percent slopes
The following 304.c Plans are Not required for this submittal:
• Emergency Spill Response Program; Not near Type III or GUDI well.
• Noise Mitigation Plan; Lesser Impact Area
• Light Mitigation Plan; Lesser Impact Area
• Odor Mitigation Plan; No RBUs within 2,000'
• Flood Shut-In Plan; Not in floodplain
• Hydrogen Sulfide Drilling Plan; No H2S in area
• Gas Capture Plan; Chevron is committed to a gathering system connection
• Community Outreach Plan; No RBUs within 2,000'
No BMP/COA Type Description
Best Management Practices
COA Type Description
0 COA
Conditions Of Approval
All representations, stipulations and conditions of approval stated in this Form 2A for this location shall
constitute representations, stipulations and conditions of approval for any and all subsequent operations on
the location unless this Form 2A is modified by Sundry Notice, Form 4 or an Amended Form 2A.
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User Group Comment Comment Date
Stamp Upon
Approval
Total: 0 comment(s)
General Comments
Attachment List
Att Doc Num Name
403606035 FORM 2A SUBMITTED
403617132 ACCESS ROAD MAP
403617141 ALA DATASHEET
403617147 CULTURAL FEATURES MAP
403617148 DIRECTIONAL WELL PLAT
403617149 DISPROPORTIONATELY IMPACTED COMMUNITY MAP
403617155 GEOLOGIC HAZARD MAP
403617156 LOCATION AND WORKING PAD GIS SHP
403617157 HYDROLOGY MAP
403617219 LAYOUT DRAWING
403617231 LOCATION DRAWING
403617238 LOCATION PICTURES
403617243 NRCS MAP UNIT DESC
403617245 PRELIMINARY PROCESS FLOW DIAGRAMS
403617247 REFERENCE AREA MAP
403617248 REFERENCE AREA PICTURES
403617251 RELATED LOCATION AND FLOWLINE MAP
403617255 CPW WAIVER
403617259 CONSULTATION SUMMARY
403617263 WILDLIFE HABITAT DRAWING
403617313 ALA NARRATIVE SUMMARY
403617495 LESSER IMPACT AREA EXEMPTION REQUEST
403617565 CPW CONSULTATION
Total Attach: 23 Files
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Public Comments
No public comments were received on this application during the comment period.
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