HomeMy WebLinkAboutStormwater Management Plan 07.29.2020(4:r----- - - ,-,
LT Environmental, Inc.
Advancing OAAordunity
FIELD -WIDE STORMWATER
MANAGEMENT PLAN FOR
CONSTRUCTION ACTIVITIES
WILLIAMS BARGATH STORMWATER
PROGRAM PICEANCE BASIN
GARFIELD COUNTY, COLORADO
Prepared for:
WILLIAMS BARGATH, LLC
2712 County Road 215, Suite 200
Parachute, Colorado 81635
Prepared by:
LT ENVIRONMENTAL, INC.
4600 West 60th Avenue
Arvada, Colorado 80003
(303) 433-9788
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TABLE OF CONTENTS
1.0 CERTIFICATION 1
2.0 INTRODUCTION 2
3.0 QUALIFIED STORMWATER MANAGER 2
4.0 SPILL PREVENTION AND RESPONSE PLAN 3
5.0 MATERIALS HANDLING 3
5.1 EXPOSED STORAGE OF BUILDING MATERIALS 4
5.2 PAINTS AND SOLVENTS 4
5.3 SANITARY WASTE MATERIAL 4
5.4 TRASH 4
5.5 EQUIPMENT MAINTENANCE AND FUELING PROCEDURES 5
6.0 POTENTIAL SOURCES OF POLLUTION 5
6.1 DISTURBED AND STORED SOIL 5
6.2 VEHICLE TRACKING CONTROLS 6
6.3 MANAGEMENT OF CONTAMINATED SOIL 6
6.4 LOADING AND UNLOADING OPERATIONS 6
6.5 OUTDOOR STORAGE ACTIVITIES 6
6.6 VEHICLE AND EQUIPMENT MAINTENANCE AND FUELI G 6
6.7 DUST OR PARTICULATE GENERATING PROCESSES 7
6.8 ROUTINE MAINTENANCE ACTIVITIES 7
6.9 ON-SITE WASTE MANAGEMENT PRACTICES 7
6.10 CONCRETE TRUCK/EQUIPMENT WASHING 7
6.11 DEDICATED ASPHALT, CONCRETE BATCH PLANTS AND MASONRY MIXING STATIONS 7
6.12 NON -INDUSTRIAL WASTE SOURCES 7
7.0 IMPLEMENTING CONTROL MEASURES 8
8.0 SITE DESCRIPTION 8
8.1 NATURE OF CONSTRUCTION ACTIVITY 8
8.2 PROPOSED SEQUENCE FOR MAJOR CONSTRUCTION ACTIVITIES 8
8.3 ESTIMATED TOTAL ACREAGE OF CONSTRUCTION ACTIVITIES 9
8.4 SOIL DESCRIPTION 9
8.5 EXISTING VEGETATION COVERAGE 9
8.6 ALLOWABLE NON-STORMWATER DISCHARGES 9
8.7 DESCRIPTION OF AREAS RECEIVING OFFSITE FLOW 10
8.8 DESCRIPTION OF ALL STREAM CROSSINGS 10
9.0 SITE MAP 10
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TABLE OF CONTENTS (continued)
10.0 FINAL STABILIZATION AND LONG-TERM STORMWATER MANAGEMENT 10
10.1 RECLAMATION 10
10.2 FINALLY STABILIZED 11
11.0 SITE INSPECTIONS 12
11.1 ROUTINE MAINTENANCE 12
11.2 CORRECTIVE ACTIONS 13
12.0 SWMP REVIEW AND REVISIONS 13
FIGURE 1
TABLE 1
TABLE 2
TABLE 3
TABLE 4
TABLE 5
APPENDIX A
APPENDIX B
APPENDIX C
APPENDIX D
FIGURES
STORMWATER MANAGEMENT PLAN PERMIT BOUNDARY
TABLES
CHEMICAL PRODUCT LIST
CONTROL MEASURE SELECTION CRITERIA
STRUCTURAL AND NON-STRUCTURAL CONTROL MEASURE CLASSIFICATION
SEED MIXES AND APPLICATION RATES
SWMP CHANGES
APPENDICES
STORMWATER PERMITS:
GENERAL PERMIT COR -400000 AND BARGATH, LLC STORMWATER CERTIFICATION
COR407507
LTE QUALIFIED STORMWATER MANAGERS
SITE-SPECIFIC INFORMATION
CONTROL MEASURE MANUAL
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1.0 CERTIFICATION
Bargath, LLC (Bargath) has prepared this Field -wide Stormwater Management Plan (SWMP) for
construction activities north of Parachute, Colorado in the Piceance Basin Field.
"I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or persons
who manage the system or those persons directly responsible for gathering the information, the
information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am
aware that there are significant penalties for submitting false information, including the possibility of
fine and imprisonment for knowing violations."
Signature
"fiP0e
Name or1c c,n 6°)ep5
Title Operali-ldn5
Date U / J/X)
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2.0 INTRODUCTION
On behalf of Bargath, LT Environmental, Inc. has prepared this Stormwater Management Plan (SWMP)
for Bargath to meet the requirements established by Colorado Department of Public Health and
Environment (CDPHE) relating to the discharge of stormwater associated with construction activities
within the Piceance Basin Field, north of Parachute, Colorado. This SWMP was prepared in accordance
with good engineering, hydrologic, and pollution control practices to ensure the best Control Measures
(CMs) are selected, installed, implemented, and maintained to protect surface waters. Changes or
additions may be required to address changes in conditions in the project area. As a condition of the
Colorado Discharge Permit System (CDPS) permit, the provisions identified in this SWMP will be
implemented as written in conjunction with design adjustments driven by field conditions. This SWMP
will be updated as needed from commencement of construction activity until final stabilization is
complete.
This SWMP contains the required elements for Bargath's field -wide construction activities, as defined in
the General Permit for Stormwater Discharge Associated with Construction Activity, Authorization to
Discharge under the CDPHE (Permit No. COR -400000, effective April 1, 2019 and Certificate No.
COR407507, effective December 3, 2019). A copy of the certification (COR407507) issued by the CDPHE
for this project is provided in Appendix A. The permit will be automatically renewed, and a copy of the
renewed permit certification will be included when it is issued.
3.0 QUALIFIED STORMWATER MANAGER
Bargath has applied for permit coverage for stormwater discharges associated with construction
activities. The authority to notify local authorities and local residents of reportable releases, dedicate
the financial and human resources to implement CMs, make repairs, and/or make changes in design is
ultimately provided by the Qualified Stormwater Manager for Bargath. The Qualified Stormwater
Manager for Bargath is:
Ms. Annette Garrigues —Environmental Specialist, Parachute, Colorado
Office: (970) 285-5461
Mobile: (970) 618-3329
The Legal Permittee for Bargath has the responsibility for authorizing permit modifications, permit
transfers, and termination of the permit. The Legal Permittee for Bargath is:
Mr. Jonathan Phelps —Manager of Operations, Parachute, Colorado
Office: (970) 285-5512
Mobile: (319) 899-4489
The Qualified Stormwater Manager will manage the Delegated Stormwater Program Team Members.
The Delegated Stormwater Program Team Members will consist of Bargath Environmental Staff; LTE
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Stormwater Staff, who will assist in conducting stormwater inspections, disseminating installation and
repair information, and maintaining stormwater inspection records; and FBC Construction, who will
assist with installing CMs and making CM repairs. A list of Qualified Stormwater Managers is included in
Appendix B. Overall, the Delegated Stormwater Program Team Members are responsible for:
Coordinating various stages of implementing CMs;
• Conducting inspections;
• Maintaining records; and
Coordinating a preventative maintenance program and housekeeping measures.
4.0 SPILL PREVENTION AND RESPONSE PLAN
A Spill Prevention, Control, and Countermeasure (SPCC) Plan is not required for the sites within the
permitted area covered by this SWMP as these sites do not meet the applicability criteria set forth in
Section 112.1 of 40 Code of Federal Regulations (CFR) Part 112 and in 7 Code of Colorado Regulations
(CCR) 1101-14 (Colorado underground and aboveground storage tank regulations).
As part of the spill prevention and response plan, Bargath personnel conduct regular inspections for
good housekeeping issues, operation and maintenance issues, and the condition of structural controls,
specifically around tanks and containers.
Hazardous materials and petroleum products used within the permitted area with potential for spills
and leaks have materials Safety Data Sheets (SDS) maintained at the Bargath office in Parachute,
Colorado. If a spill of pollutant(s) threatens stormwater or has the potential to discharge from the site,
the Qualified Stormwater Manager will be contacted immediately.
5.0 MATERIALS HANDLING
Spills or leaks will be handled by Bargath personnel or contractors. Bargath personnel conduct discharge
prevention measures, including procedures for routine handling of products. Loading and transfer issues
are discussed in monthly safety meetings.
Preventive maintenance is scheduled by the Qualified Stormwater Manager. Operators are trained in
the safe handling of materials and spill discovery, response, and cleanup procedures during safety
meetings. Emergency numbers are posted at all Bargath locations and are readily available at the office
at 2717 County Road 215, Suite 200, Parachute, Colorado.
In general, small spills will be handled by Bargath personnel. The Qualified Stormwater Manager or
designee will handle spills and emergencies. In most cases, an absorbent material will be used to pick up
the spill. The spill response equipment is located at the Parachute office. In the situation of a larger spill,
the Qualified Stormwater Manager will be notified, and a contractor will be called to respond to the
spill.
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The following significant materials are to be expected at the Site and have been evaluated to ensure
appropriate implementation of control measures and handling procedures to mitigate impacts of
pollutants to runoff:
• Exposed storage of building materials;
• Paints and solvents;
• Sanitary waste material;
• Trash; and
• Equipment maintenance and fueling procedures.
5.1 EXPOSED STORAGE OF BUILDING MATERIALS
The most common materials with the potential to contribute pollutants to runoff stored on the Site
include: fuel and lubricants for construction equipment and vehicles; small quantities of paints and
solvents; water- or gel -based hydraulic fracturing fluids (surfactant, friction reducer, dilute hydrochloric
acid, potassium chloride) used during well completion; produced water; and crude oil/condensate,
stockpiled soil, and miscellaneous construction equipment. Materials stored at the construction site will
be covered, enclosed or otherwise protected from the elements in a manner to prevent releases to
stormwater runoff.
5.2 PAINTS AND SOLVENTS
The quantity of paint and solvents stored at the construction site will be limited to the amount that is
reasonable to support the specific construction or maintenance activity. Any paint or solvent not
consumed daily will be enclosed and protected from the elements and contained in a manner to prevent
release to stormwater runoff.
5.3 SANITARY WASTE MATERIAL
Portable toilets will be located in level locations, but not in drainage paths and located at least 50 feet
away from surface waters. They will also be anchored to minimize the risk of tipping over. Downstream
perimeter controls will be installed to prevent potential leaks from entering surface waters.
5.4 TRASH
Trash bins or dumpsters will be placed on site, in level locations, but not in drainage paths. Downstream
perimeter control measures will be installed to prevent any construction trash or debris in stormwater
runoff from entering surface waters. The contractor will remove all blown trash/debris in a timely
manner.
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5.5 EQUIPMENT MAINTENANCE AND FUELING PROCEDURES
When equipment maintenance or fueling must take place on site, a designated area protected from
stormwater and away from drainage courses shall be used. Drop cloths or drain pans can be used to
catch spills if necessary. If a small spill does occur, the operator will use absorbent materials to remove
the spill. The spent absorbent material will be disposed of properly and promptly. In the event that soil
excavation becomes necessary, Williams maintains current waste profiles with disposal facilities so
impacted soil can be promptly disposed of in accordance with COGCC or CDPHE regulations.
For detailed descriptions and locations of specific CMs utilized at the site to minimize impacts from
handling significant materials, refer to the Site -Specific Information in Appendix C and the Control
Measure Manual in Appendix D, respectively.
6.0 POTENTIAL SOURCES OF POLLUTION
To identify, evaluate, and assess potential sources of stormwater runoff pollutants that may exist at a
pad site, the following activities and pollutant sources were evaluated:
Disturbed and stored soil;
• Vehicle tracking controls;
• Management of contaminated soil (if present);
• Loading and unloading operations;
Outdoor storage activities;
• Vehicle and equipment maintenance and fueling;
Dust or particulate generating processes or activities;
Routine maintenance activities;
On-site waste management practices;
Concrete truck/equipment washing;
• Dedicated asphalt, concrete batch plants, and masonry mixing stations; and
• Non -industrial waste sources.
Refer to the site-specific maps included in Appendix C for documentation of these potential pollutant
sources, if existing on site.
6.1 DISTURBED AND STORED SOIL
Disturbed soil and excavated materials will be stored on or next to the well pad within the construction
area. Topsoil and other soil will be stockpiled separately and stabilized as needed. Excavation in sensitive
areas may be conducted using special techniques, as specified by the landowner/agency representative.
Excavated materials will be used as backfill when practicable. An exception may be excess rock
generated by excavation activities. In these areas, some select backfill materials may be required to
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protect the project area. Excess rock may be pushed into rock filter dikes, used in energy dissipation
zones below culverts, constructed into rock check dams within grassed swales, or distributed over a
portion of the project area.
Generally, cut slopes made in steep rolling terrain during construction will be re -graded and contoured
to blend into the adjoining landscape, and natural drainage patterns will be re-established to as near
pre -disturbance levels as possible during reclamation.
Temporary workspace areas will be restored to approximate pre -disturbance conditions.
6.2 VEHICLE TRACKING CONTROLS
Properly constructed and graveled roads provide the best off-site tracking control. Access road
entrances adjacent to paved county roads are often graveled to prevent or minimize any off-site soil
tracking from pad areas or access roads. In some instances, cattle guards are used to drop off caked mud
before the vehicle exits the site area. If tracking is observed, the roads can be cleaned by any
combination of road scraping/sweeping as necessary.
6.3 MANAGEMENT OF CONTAMINATED SOIL
If contaminated soil is excavated at a Bargath site, additional CMs will be employed to ensure
containment of any stormwater runoff. In addition, stockpiles of contaminated soil will be removed
from the site and disposed of at a properly permitted facility or landfarmed on site per an approved
Exploration and Production Waste Management Plan as soon as possible. Soil will be handled per the
Revegetation and Reclamation Plan for the specific site, all plans are held in the Bargath office in
Parachute, Colorado. No waste materials will be dumped or discharged to waters of the state.
6.4 LOADING AND UNLOADING OPERATIONS
Pollution sources related to loading/unloading operations are generally associated with potential spills
during delivery and unloading of materials throughout the project area. BMPs selected to control this
source are material management practices and personnel training. In the event of a spill, the SWMP
material handling and spill prevention procedures will be followed.
6.5 OUTDOOR STORAGE ACTIVITIES
The activities associated with outdoor storage pollution sources are the storage of material at the
staging areas and the potential for spills and leaks from these materials. BMPs selected to control these
sources are installation and use of material storage and staging areas, material management practices,
personnel training, and following the spill prevention procedures. A list of chemical products typically
used at a Bargath site is included as Table 1 (not all these chemicals will be on site).
6.6 VEHICLE AND EQUIPMENT MAINTENANCE AND FUELING
Routine maintenance will be limited to fueling and lubricating equipment. Drip pans will be used during
routine fueling and maintenance to contain spills or leaks. Any waste product from maintenance
activities will be containerized and transported offsite for disposal or recycling. There will be no major
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equipment maintenance or overhauls conducted on site. Equipment will be transported offsite for major
maintenance or overhauls.
6.7 DUST OR PARTICULATE GENERATING PROCESSES
Dust and/or particulates generated from vehicle traffic on graveled access roads may produce fugitive
emissions. Dust and particulate generation are highest during dry and hot times of the year. If dust from
vehicle traffic on graveled access roads becomes significant, dust suppression procedures will be
implemented, which may include road watering.
6.8 ROUTINE MAINTENANCE ACTIVITIES
Routine maintenance activities involving fertilizers or detergents are not completed at the Bargath sites.
Herbicides will be applied annually in some areas to control noxious weeds. Herbicide application will be
conducted by trained individuals and with consideration for runoff potential to nearby surface waters.
6.9 ON-SITE WASTE MANAGEMENT PRACTICES
All waste from materials imported to the construction site are placed in appropriate containment and
then removed for disposal/recycling to an appropriate licensed disposal/recycling facility. No waste
materials will be buried, dumped, or discharged to waters of the state.
6.10 CONCRETE TRUCK/EQUIPMENT WASHING
Concrete truck/equipment washing, including the concrete truck chute and associated fixtures and
equipment, are not anticipated in the Bargath Permitted Area in the Piceance Basin, Colorado. If a
concrete wash area is used, it will be constructed using good engineering practices as provided in the
CM Manual. The concrete wash areas will be monitored for sufficient freeboard and the contents will be
disposed of at an approved facility. Concrete wash areas are temporary for these projects and are not
intended as a permanent structure.
6.11 DEDICATED ASPHALT, CONCRETE BATCH PLANTS AND MASONRY MIXING STATIONS
No dedicated concrete or asphalt batch plants are located within the Bargath Permitted Area in the
Piceance Basin, Colorado.
6.12 NON -INDUSTRIAL WASTE SOURCES
Cleanup of trash and discarded materials will be conducted as trash is observed. Cleanup will consist of
patrolling the roadway, access areas, and general work areas to pick up trash, debris, scrap, or other
discarded materials.
All waste from materials imported to the construction site are placed in appropriate containment and
then removed for disposal/recycling to an appropriate licensed disposal/recycling facility. This includes
sanitary sewage facilities (typically portable), which will be placed, anchored, and maintained with
proper care.
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7.0 IMPLEMENTING CONTROL MEASURES
CMs for sediment and erosion control will be accomplished through a combination of construction
techniques, vegetation and re -vegetation, administrative controls, and structural features. Typical
configurations of structural controls discussed below and technical drawings with references are
provided in the Control Measure Manual (Appendix D). CM selection is guided by the criteria listed in
Table 2, and CM contractor experience and current field conditions as documented in Appendix C.
Structural and non-structural CMs are summarized in Table 3.
During periods of active construction, field activities may dictate the installation or alteration of CM
designs between scheduled inspection dates. At these times, the field foremen may choose to
implement other CM designs at their project sites to maintain compliance. In these instances, the site
maps are updated during the next inspection to communicate the changes that have taken place since
the previous inspection.
8.0 SITE DESCRIPTION
8.1 NATURE OF CONSTRUCTION ACTIVITY
Bargath currently owns or leases oil and natural gas mineral rights in the Piceance Basin, which includes
Garfield County, Colorado. Individual sites within the permitted area range from approximately one to
ten acres in size. The project area includes field- and site-specific access roads, pads, and pipelines. A
map of the field -wide project area is provided as Figure 1.
8.2 PROPOSED SEQUENCE FOR MAJOR CONSTRUCTION ACTIVITIES
The construction phase may include the following sequence of activities: access road building, facility
construction, pipeline installation, equipment installation, and well pad reclamation.
Oil and gas activity types requiring ground surface disturbance typically include: a new drill site, a facility
site, a plugged and abandoned (P&A) site, and an excavation/other site as well as pipeline construction
and access roads. Each of these types is described as follows.
• A new drill site includes pad construction, well drilling, well completion, flow line
installation, access road building, and well pad reclamation. Pad reclamation is
accomplished by contouring disturbed soil to conform to the surrounding terrain, replacing
the stockpiled topsoil, seeding, and/or mulching disturbed soil areas to re-establish
coverage vegetation.
• A facility site includes pad construction, tank and sump installation (if applicable), gas flow
line installation, access road building, and pad reclamation. Pad reclamation is accomplished
by contouring disturbed soil to conform to the surrounding terrain, replacing the stockpiled
top soil, seeding, and/or mulching disturbed soil areas to re-establish coverage vegetation.
• A P&A site includes well abandonment, flow line removal or cement flow -fill abandonment,
access road decommissioning, and removal of all oilfield operations from the pad site. Pad
reclamation is accomplished by contouring disturbed soil to conform to the surrounding
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terrain and seeding and/or mulching disturbed soil areas to re-establish coverage
vegetation.
• An excavation/other site includes excavation for a variety of reasons. Excavation areas will
be reclaimed by backfilling and contouring the disturbed area to conform to the surrounding
terrain and seeding and/or mulching disturbed soil areas to re-establish coverage
vegetation, if necessary.
• Access roads provide access to the drill sites, pad sites, pipeline connections, facility sites,
excavation sites, and P&A sites. Roadwork construction and maintenance are included in
this SWMP for access roads. Road reclamation is accomplished by contouring disturbed soil
to conform to the surrounding terrain, replacing the stockpiled top soil, and seeding and/or
mulching disturbed soil areas to re-establish coverage vegetation.
For stormwater regulation purposes, construction sites have been divided into the following stormwater
stages: Active, Completed, and Final Stabilization.
8.3 ESTIMATED TOTAL ACREAGE OF CONSTRUCTION ACTIVITIES
The total field -wide area of disturbance is approximately 50 acres. The site-specific site boundaries and
areas of disturbance are identified on the site-specific maps (Appendix C), specific inspection forms, and
history reports (Online Database).
8.4 SOIL DESCRIPTION
The Piceance Basin is a large area covering parts of Garfield, Rio Blanco, and Mesa counties in Colorado.
Bargath operations fall within Garfield County, Colorado. Topsoil varies within the area and is classified
as loam, halequepts, and torrifluvents according to the United States Natural Resources Conservation
Service (http://websoilsurvey.nrcs.usda.gov/app/). Percentages of each type of topsoil vary widely
throughout the area.
8.5 EXISTING VEGETATION COVERAGE
The permitted area is composed primarily of desert shrublands, some river crossings, and bare ground
associated with existing activities, roads, and other disturbances in the area.
8.6 ALLOWABLE NON-STORMWATER DISCHARGES
The following is a summary list of non-stormwater discharges that are allowed under the stormwater
permit.
Discharges from emergency fire -fighting activities or a fire hydrant;
Uncontaminated springs; and
Concrete wash water to the ground associated with the washing of concrete tools and
concrete mixer chutes.
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In the event construction dewatering is required at a site, it will be conducted via the Low Risk Discharge
Guidance Policy or the appropriate permitting will be applied for and obtained through CDPHE-Water
Quality Control Division (WQCD).
8.7 DESCRIPTION OF AREAS RECEIVING OFFSITE FLOW
The stormwater discharged may contact Parachute Creek, which runs near the project area. Waterways
in this region will ultimately discharge to the Colorado River.
The majority of the Bargath permitted area does not intrude or encroach on any wetland acreage. If a
wetland is designated within a proposed pad construction area, Bargath will consult with the United
States Army Corps of Engineers, as applicable.
8.8 DESCRIPTION OF ALL STREAM CROSSINGS
The majority of the Bargath permitted area does not cross any streams. Pipeline projects are typically
bored below stream and river crossings. If a stream or river is to be crossed within the permitted
construction area, Bargath will consult with the United States Army Corps of Engineers, as applicable.
9.0 SITE MAP
The original site maps are located in Appendix C. New versions are stored and updated online in the
Williams portal along with inspection records. Site maps are updated at every inspection interval and
dated to indicate the changes from one inspection to the next.
Site maps include construction site boundaries; surface flow arrows depicting flow direction on site and
runoff directions; areas of ground surface disturbance; areas of cut and fill; areas used for storage of
building materials, equipment, stockpiled soil, or waste; locations of dedicated asphalt or concrete batch
plants; structural CMs; non-structural CMs (as applicable); springs, streams, wetlands, stream crossings
or other surface waters; wellheads, and other pertinent site -specifics.
10.0 FINAL STABILIZATION AND LONG-TERM STORMWATER MANAGEMENT
10.1 RECLAMATION
Unless otherwise directed by the landowner or a jurisdictional authority, rocks, cut vegetation, and
other surface materials temporarily stockpiled during construction will be redistributed as backfill on the
project area. During reclamation, sediment CMs will remain in use, when necessary.
Disturbed areas will be seeded using seed mixes appropriate to the site as noted in Table 4, unless the
landowner wishes to return the land to agricultural production. Local soil conservation authorities with
the United States Natural Resources Conservation Service, surface owners, and/or reclamation
contractors familiar with the area may be consulted regarding the other seed mixes to be used.
On terrain where drill seeding and/or thatch/mulch is appropriate, seed may be planted using a drill
equipped with a depth regulator to ensure proper depth of planting. The seed mix will be evenly and
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uniformly planted over the disturbed area. Drilling will be used where topography and soil conditions
allow operation of equipment to meet the seeding requirements of the species being planted. Broadcast
seeding will occur on steep terrain and on areas where the cut vegetation and rocks were redistributed
over a right-of-way. Hydraulic mulch consists of applying a mixture of shredded wood fiber or a
hydraulic matrix and a stabilizing emulsion or tackifier with hydro -mulching equipment, which
temporarily protects exposed soil from erosion by raindrop impact or wind. Hydraulic mulch is suitable
for disturbed areas requiring temporary protection until permanent stabilization is established and
disturbed areas that will be re -disturbed following an extended period of inactivity.
Seeding will be done when seasonal or weather conditions are most favorable according to schedules
identified by the jurisdictional authority, reclamation contractor, or landowner. Whenever possible,
seeding will be timed to take advantage of moisture, such as early spring or late fall, which will benefit
from winter precipitation.
Seed mixes will be planted in the amount specified in pounds (as noted in Table 4) of pure live seed per
acre. No primary or secondary noxious weeds will be in the seed mix.
The re-establishment of vegetative cover as well as watershed stabilization measures will be scheduled
during the working season and before the succeeding winter. Re -vegetation will be accomplished as
soon as practical following the reclamation of a pad, pipeline, or road.
Mulch will be laid down during re -vegetation as appropriate. The cut vegetation and rocks will act like
mulch in the areas where they are applied. Where straw or hay mulch is applied, the mulch will be
applied and crimped into the soil. The need for fertilizers will be determined in conjunction with the
landowner.
A special condition exists for pad sites within crop lands. According to the CDPHE Stormwater Fact Sheet
dated July 2007:
...when portions of an oil and gas site are restored to crop land in accordance with the COGCC
rules and returned to the control of the farmer following interim reclamation, permit
coverage is no longer required for those areas, and it is not necessary for the oil and gas site
to either stabilize or reassign permit coverage for the areas.
When this condition exists for a pad site, inspections will be discontinued, and the site will be removed
from the stormwater construction permit program.
10.2 FINALLY STABILIZED
According to stormwater regulations, "finally stabilized is reached when all ground surface disturbing
activities at the construction site are complete; and, for all areas of ground surface disturbing activities,
either a uniform vegetative cover with an individual plant density of at least 70% of pre -disturbance
levels is established, or equivalent permanent alternative stabilization methods are implemented."
A special condition exists for oil and gas pad sites regarding pavement. According to the CDPHE
Stormwater Fact Sheet dated July 2007:
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Areas developed as stabilized unpaved surfaces as needed for operation of the facility after
interim reclamation also qualify as 'finally stabilized". The term "stabilized unpaved surfaces"
includes dirt road surfaces and the portions of the well pad surfaces that cannot be
revegetated due to operational necessity, but does not include slopes, ditches and other areas
where revegetation is necessary. Stabilized unpaved surfaces must be prepared in such a way
as to minimize erosion, such as preventing rill erosion on pad surfaces or roads.
11.0 SITE INSPECTIONS
LTE Stormwater Staff, consisting of someone knowledgeable in the principals and practices of erosion
and sediment control and pollution prevention, will examine all disturbed areas, including the
construction site perimeter, haul routes and vehicular exits, chemical and material storage locations and
stormwater discharge points during each inspection assessing the conditions that could impact
stormwater quality. All temporary and permanent erosion and sediment CMs will be visually verified to
ensure effective operational condition and verify compliance with the permit.
The CDPS General Permit requires a thorough stormwater management inspection be conducted, at a
minimum, every 7 calendar days or every 14 calendar days and within 24 hours after the end of any
precipitation or snowmelt event that causes surface erosion. Provided the timing is appropriate, the
post -storm inspections may be used to fulfill the 14 -day routine inspection requirement.
Stormwater related inspection records, site maps, and diagrams are kept on file or in the Bargath
database. The stormwater inspections are available for viewing on a secure ftp page and available at
any time. All stormwater related records are filed and stored by Bargath for a minimum of three years
after the permit has been closed.
11.1 ROUTINE MAINTENANCE
The following inspection guidelines and maintenance practices are to be used during field inspections
and to maintain erosion and sediment CMs.
CMs identified in the SWMP will be installed in accordance with the SWMP and per detail
provided in the SWMP.
• CMs will be inspected for proper installation and adequate maintenance.
• Work practices will be implemented to preserve CM installations.
• Any releases or evidence of possible past off-site releases will be inspected, documented,
and proper steps taken to reduce the chance of a future release.
• All measures will be maintained in good working order. If a repair is necessary, the process
will be initiated immediately after recieving the report.
Built up sediment will be removed from CMs when sediment has reached one-third the
height of the fence, one-half the height of the CM, or the CM is no longer functioning
properly.
PICEANCE BASIN FIELD 12
4'7
LT ENVIRONMENTAL
Z5,
ADVANCING OPPORTUNITY
• The sediment basin will be inspected for depth of sediment and built up sediment will be
removed before it reaches the basin's 50% volume depth and/or at the completion of the
project.
11.2 CORRECTIVE ACTIONS
The inspector will note any CM that is not in compliance with the approved SWMP and any
deficiencies that are not immediately repairable will be reported to the operator and/or owner, or
the designee for instructions on how to proceed, including, but not limited to, implementing new
or modified CMs to minimize potential pollutant discharges. Preemptive installation and proactive
maintenance will be taken to prevent CM failures and potential discharge of pollutants.
12.0 SWMP REVIEW AND REVISIONS
Bargath will amend this SWMP whenever there is a significant change in design, construction, operation,
or maintenance, which has a significant effect on the potential for the discharge of pollutants to waters
of the state, or if the SWMP proves to be ineffective in achieving the general objectives of controlling
pollutants in stormwater discharges associated with pad activities. SWMP revisions will be tracked in
Table 5. The SWMP is considered a "living document".
PICEANCE BASIN FIELD 13
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TOWNSHIP AND RANGE
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FIGURE 1
WILLIAMS MIDSTREAM DRILLING PROGRAM
PERMITTED AREA
GARFIELD & MESA COUNTY, COLORADO
WILLIAMS MIDSTREAM
A
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PAWilliarns Piceance Storrnwater \ GIS \ MXD \ STORMWATER \ 034018001_PERMIT_AREA_2019.mxcl
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TABLE 1
CHEMICAL PRODUCT LIST
PICEANCE FIELDWIDE
GARFIELD COUNTY, COLORADO
BARGATH, LLC
SDS Product Name
Manufacturer's
Product Number
Product Use/Chemical Description
Chemical Manufacturer
DRILLING FLUID PRODUCTS
Aldacide G
Drilling Fluid Product
Various
Aluminum Tristearate
Drilling Fluid Product
Various
Aquagel
Drilling Fluid Product
Various
Baracarb 150
Drilling Fluid Product
Various
Baroid 41
Drilling Fluid Product
Various
Baro -Seal Classic
Drilling Fluid Product
Various
Calcium Nitrate
Drilling Fluid Product
Various
Caustic Soda
Drilling Fluid Product
Various
Ez-Mud
Drilling Fluid Product
Various
Filter-Chek
Drilling Fluid Product
Various
Fumaric Acid
Drilling Fluid Product
Various
Lime
Drilling Fluid Product
Various
Magnafloc 24
Drilling Fluid Product
Various
Saw Dust
Drilling Fluid Product
Various
Soda Ash
Drilling Fluid Product
Various
Soltex
Drilling Fluid Product
Various
Torq Trim
Drilling Fluid Product
Various
Wall -Nut Medium
Drilling Fluid Product
Various
FUELS & LUBRICANTS
Acetylene
Fuel
Various
Chain Oil
Lubricant
Various
Diesel Fuel
Fuel
Various
Drive Chain Fluid
Lubricant
Various
Gear Oil
Lubricant
Various
Grease
Lubricant
Various
Hydraulic Oil
Lubricant
Various
Motor Oil
Lubricant
Various
Propane
Fuel
Various
PAINTS
Paints - Industrial Enamel
Paint
Various
Paints - Various Colors
Paint
Various
Paints - Primer
Primer
Various
Paints - Thinner
Paint Thinner
Various
(gt7
TABLE 1, CONTINUED
CHEMICAL PRODUCT LIST
MSDS Product Name
Manufacturer's
Product Number
Product Use/Chemical Description I Chemical Manufacturer
L
MISCELLANEOUS
Antifreeze
Various uses
Various
Methanol
Various uses
Various
Rig Wash
Various uses
Various
Starting Fluid
Various uses
Various
Thread Dope
Various uses
Various
WD -40 (Aerosol)
Various uses
Various
WD -40 (Liquid)
Various uses
Various
(L 77
TABLE 2
CM SELECTION CRITERIA
PICEANCE BASIN, COLORADO
BARGATH, LLC
ACTIVE
COMPLETED
FINAL STABILIZATION
Pads, Pipelines, Plugged & Abandoned (P&A)
Berm
Cattle Guard
Check Dams
Culvert Protection
Ditch&Berm
Erosion Control Blanket
Land Grading
Mulches, with or without a tackifier
Revegetation
Silt Fence
Vehicle Tracking Control
Straw Bales
Wind Erosion Control
Wattles
Berm
Cattle Guard
Check Dams
Culvert Protection
Ditch&Berm
Erosion Control Blanket
Land Grading
Mulches, with or without a tackifier
Revegetation
Roadside Ditches
Silt Fence
Straw Bale
Wattles
Berm
Cattle Guard
Culverts
Diversion Ditch/Ditch&Berm
Re -vegetation
Mulches, with or without a tackifier
Access Roads
Berm
Cattle Guard
Check Dams
Culverts
Culvert Protection
Ditch&Berm
Erosion Control Blanket
Land Grading
Mulches, with or without a tackifier
Revegetation
Silt Fence
(Cattle Guard)
Straw Bales
Wind Erosion Control
Wattles
Berm
Cattle Guard
Check Dams
Culverts
Culvert Protection
Ditch&Berm
Erosion Control Blanket
Land Grading
Silt Fence
Straw Bale
Berm
Cattle Guard
Culverts
Culvert Protection
Ditch&Berm
Gravel Surfacing
Re -vegetation
Notes:
CM = Control Measures
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STRUCTURAL AND NON-STRUCTURAL CM CLASSIFICATION
PICEANCE BASIN, COLORADO
BARGATH, LLC
NON-STRUCTURAL CMs
Good Housekeeping/Materials Management
General Construction Site Waste Management
Spill Prevention, Control Plan and Countermeasure
STRUCTURAL CMs
Runoff Control
Berm
Check Dam
Culverts
Culvert Protection
Ditch&Berm
Construction Site Planning and Management
Timing of Projects
Construction Sequencing
Site Operator CM Inspection and Maintenance Training
Non-structural practices may include, but are not limited to:
a stabilized staging area, minimize initial pad site acreage,
slope pad to the reserve pit, wind erosion and dust control,
temporary vegetation, permanent vegetation, mulching,
geotextiles, sod stabilization, slope roughening, vegetative
buffer strips, protection of trees, and preservation of mature
vegetation. A water source may be used to abate dust and
alleviate wind erosion.
Sediment Control
Silt Fence
Straw Bales
Land Grading
Vehicle Tracking Control
Wattle
'Program Oversight
Construction Phase Plan Review
Contractor Training and Certification
Database Development and Maintenance
'Erosion Control
Berms
Check Dams
Culverts
Culvert Protection
Diversions
Land Grading
Mulches, with or without a tackifier
Erosion Control Blankets
CM = Control Measure
C(
TABLE 4
SEED MIXES AND APPLICATION RATES
PICEANCE BASIN, COLORADO
BARGATH, LLC
SEED MIX
APPLICATION RATE (lbs/acre)
PBSI Dryland Aggressive Mix
25
(20%) Green Needlegrass, Lodorm
(20%) Slender Wheatgrass, Native
(20%) Western Wheatgrass, Native
(20%) Pubescent Wheatgrass, Luna
(20%) Intermediate Wheatgrass, Oahe/Rush
PBSI Native Prairie Mix
15
(25%) Blue Grama
(10%) Buffalograss
(20%) Green Needlegrass
(20%) Sideoats Grama
(25%) Western Wheatgrass
PBSI Native Sandyland Mix
15
(20%) Yellow Indiangrass
(10%) LittleBluestem
(10%) Indian Rice Grass
(10%) Sideoats Grama
(10%) Sand Lovegrass
(10%) Prairie Sandreed
(20%) Switchgrass
PBSI Premium Irrig. Pasture Mix #1
25
(75%) Meadow Bromegrass, Paddock/Fleet
(25%) Orchardgrass, Elsie/Mega bite/Paiute
Notes:
lbs/acre = pounds per acre
% = percent
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SWMP CHANGES
PICEANCE BASIN, COLORADO
BARGATH, LLC
REVISED PLAN
DATE
SWMP REVISIONS
DESCRIPTION
Plan creation
Minor edits to plan, new Manager signature
SECTION NUMBER
PREVIOUS PLAN
DATE
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COLORADO
Department of Public
Health & Environment
Facility Located at:
Specific Information
(if applicable):
CERTIFICATION TO DISCHARGE
UNDER
CDPS GENERAL PERMIT COR400000
STORMWATER ASSOCIATED WITH CONSTRUCTION ACTIVITIES
Certification Number: COR407507
This Certification to Discharge specifically authorizes:
Owner Bargath LLC (Williams)
Operator Bargath LLC (Williams)
to discharge stormwater from the facility identified as
Bargath LLC Fieldwide Permit Coverage
To the waters of the State of Colorado, including, but not limited to:
Parachute Creek, Colorado River
Pipeline and Utilities (including natural gas, electricity, water and
communications)
50 acres
Intersection of CR 320 and CR 323 Rifle CO 81650
GARFIELD County
Latitude 39.490968 Longitude -107.937883
Certification is issued and effective: 12/3/2019
Expiration date of general permit: 3/31/2024
This certification under the permit requires that specific actions be performed at designated times. The certification
holder is legally obligated to comply with all terms and conditions of the permit.
This certification was approved by:
Meg Parish, Section Manager
Permits Section
Water Quality Control Division
4300 Cherry Creek Drive South, Denver, CO 80246 303-692-3500 www.colorado.gov/cdphe/wqcd
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APPENDIX B
LTE QUALIFIED STORMWATER MANAGERS
WILLIAMS STORMWATER PROGRAM
PICEANCE BASIN, COLORADO
BARGATH, LLC
Name
Title
Peter Abrahamson
Environmental Tech
Josh Adams
Staff Geologist
Stacey Baum
Staff Biologist
Eric Carroll
Staff Geologist
Brittany Cocina
Project Geologist
Kendra Coreas
Field Tech
Adam Daniels
Environmental Tech
Gabrielle Davis
Staff Engineer
Ryan Dial
Project Environmental Scientist
Brandon Finn
Staff Environmental Scientist
Alex Guy
Staff Environmental Scientist
Dustin Held
Project Geologist
Tanna Lyon
Project Environmental Scientist
Evan Mason
Staff Geologist
Gentry Muniz
Environmental Scientist
Taylor Parman
Environmental Tech
Brian Padobnik
Environmental Tech
Kris Rabida
Staff Environmental Scientist
Tanner Rausch
Staff Environmental Scientist
Kyle Schildt
Program Manager, Engineering
Travis Short
Field Tech
Steve Sivigliano
Project Environmental Specialist
Wes Toews
Staff Geologist
Mario Venzor
Environmental Tech
LW -7m
Advancing Opportunity
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