HomeMy WebLinkAbout13 SWMPSTORMWATER MANAGEMENT PLAN
O\OLSSON
ASSOCIATES
UrsaPERATING
COM ANY
Colorado Operations
792 Buckhorn Dr.
Rifle, CO 81650
(970) 625-9922
Stormwater Management
Field Wide Plan
Battlement Mesa
Garfield County, Colorado
May 2013
Revision #9 (February 2017)
Ursa
Colorado Operations
792 Buckhorn Dr.
Rifle, CO 81650
(970) 625-9922
OPERATING
COMPANY
Stormwater Management
Field Wide Plan
Battlement Mesa
Garfield County, Colorado
HRL COMPLIANCE SOLUTIONS, INC.
Environmental Consultants
Prepared by:
HRL Compliance Solutions, Inc.
2385 F'/ Road
Grand Junction, CO 81505
Table of Contents
1.0 INTRODUCTION 1
1.1 STORMWATER RUNOFF PERMITTING REQUIREMENTS 1
1.2 PROJECT DESCRIPTION AND BACKGROUND 2
1.3 PROJECT OWNER AND OPERATOR 2
2.0 CONSTRUCTION SITE LOCATION DESCRIPTION 3
2.1 SITE LOCATION 3
2.2 SCHEDULE OF CONSTRUCTION ACTIVITIES 3
2.3 RUNOFF CHARACTERISTICS 5
2.4 RECEIVING WATERS 7
2.5 NATIVE VEGETATION 7
3.0 POTENTIAL POLLUTION SOURCES 8
4.0 DESCRIPTION OF SOIL CONTROL MEASURES 11
4.1 STRUCTURAL PRACTICES FOR EROSION AND SEDIMENT CONTROL 11
4.1.1 Straw Bale and Rock Check Dams 11
4.1.2 Straw Wattles/Straw Rolls 11
4.1.3 Diversion Berm/Channel 11
4.1.4 Culvert Inlet/Outlet Protection 12
4.1.5 Sediment Traps 12
4.1.6 Armored Run -downs 12
4.1.7 Straw Bale Barriers 12
4.1.8 Water Bars 12
4.1.9 Tracking Pads 12
4.2 NON-STRUCTURAL PRACTICES FOR EROSION AND SEDIMENT CONTROL 12
4.2.1 Vegetative Buffers 12
4.2.2 Seeding of Disturbed Areas 13
4.2.3 Mulching 13
4.2.4 Surface Roughening 13
5.0 PHASED BMP IMPLEMENTATION 14
5.1 CONSTRUCTION 14
5.2 TEMPORARY 14
5.3 INTERIM 15
5.4 FINAL STABILIZATION 15
6.0 MATERIALS HANDLING AND SPILL PREVENTION 17
6.1 WASTE MANAGEMENT AND DISPOSAL 17
6.2 Fuels and Materials Management 17
6.3 Construction Site Housekeeping 19
7.0 DEDICATED CONCRETE OR ASPHALT BATCH PLANTS 20
8.0 VEHICLE TRACKING CONTROLS 21
9.0 INSPECTION AND MAINTENANCE PROCEDURES 22
10.0 NON-STORMWATER DISCHARGES 24
11.0 CERTIFICATIONS 25
11.1 OWNER/APPLICANT CERTIFICATION 25
11.2 STORMWATER MANAGEMENT PLAN ADMINISTRATOR 26
12.0 ADDITIONAL BMP REFERENCES 27
LIST OF APPENDICES
Appendix A Field Wide Map
Appendix B Stormwater Permit
Appendix C Stormwater Inspection Form
Appendix D BMP Descriptions and Installation Details
Appendix E Project Seed Mixes
Appendix F Site Specific Descriptions & Maps
Table 1 SWMP Revisions
1 May 2013
1.0 INTRODUCTION
This Stormwater Management Plan (SWMP) is written to comply with the Colorado
Department of Public Health and Environment's (CDPHE) General Permit No. COR -
030000 issued on May 31, 2007 and has been administratively continued effective of July
1, 2012, and related U.S. Environmental Protection Agency (USEPA) National Pollutant
Discharge Elimination System (NPDES) stormwater regulations. This larger common
plan of development SWMP addresses construction activities associated with
development of natural gas resources in the Battlement Mesa in Garfield County,
Colorado. The Battlement Mesa SWMP is intended to be periodically updated as needed
to address planned developments, new disturbances, and other changes needed to manage
stormwater and protect surface water quality. This SWMP will be updated in accordance
with Parts I.D.5.c, d of the permit.
This SWMP is in two parts: (1) the field -wide SWMP for Ursa activities within the
Battlement Mesa project area; and (2) additional, dynamic, information (including
inspection forms) for well pads, compressor stations, and roads. The field -wide SWMP
includes a general area description, area boundary map, descriptions of Best Management
Practices (BMPs), description of materials handling and spill prevention, inspection,
maintenance procedures, and definition of final stabilization. Site-specific tables within
this field -wide SWMP Appendices address individual ground -disturbing activities. The
site-specific information found in Appendix F contains information such as facility
location, construction limits, BMP locations and detailed current site conditions.
Additional information on Ursa's specifics of administrative operations is provided in the
appendices.
This SWMP will need to be updated/revised during the life of the project. Updates will
include:
1. Revision of existing BMPs, as needed, to address erosion and sediment control.
2. Deletion of BMPs and reduction in monitoring frequency for individual facility
locations where interim and long-term stabilization have been successfully
established.
3. Regulation updates, Table and Appendix revisions.
This SWMP will have a separate revision log sheet; this log sheet will have dates that the
SWMP was modified as applicable, refer to Table 1.
This SWMP is written to contain general stormwater management practices, as well as
site specific information related to specific construction activities occurring in the
Battlement Mesa field area. Site specific information found in Appendix F includes
phased BMP implementation, areas of disturbance, schedule of construction activities,
final stabilization measures, current BMPs, and potential pollution sources.
1.1 Stormwater Runoff Permitting Requirements
The Federal Clean Water Act [Section 402(p)] requires that discharges of pollutants to
waters of the United States from any point source be regulated by NPDES permits. In
November 1990, the USEPA published final regulations that established application
requirements for stormwater associated with construction activity for soil disturbances of
2 May 2013
5 acres or more be regulated as an industrial activity and covered by an NPDES permit.
In December 1999, the USEPA published final Phase II NPDES regulations that
established application requirements for stormwater associated with construction activity
for soil disturbances to be regulated as an industrial activity and covered by an NPDES
permit. These regulations became effective July 1, 2002.
Stormwater construction permits are required for oil and gas activities that disturb 1 or
more acres during the life of the project, or are part of a larger common plan of
development. CDPHE considers a common plan of oil and gas development to mean
development of several well pads and/or related infrastructure in a contiguous area either
during the same time period or under a consistent plan for long-term development.
1.2 Project Description and Background
Within the Battlement Mesa project area, Ursa Operating Company, LLC (Ursa) is
charged with construction, operation, and maintenance of access roads, well pads, and
gas gathering pipelines and facilities. Ursa is responsible for implementing stormwater
management as it pertains to their respective operations within the Battlement Mesa
project area. This SWMP is developed, maintained, and implemented to suit the needs of
each construction activity within the Battlement Mesa project area.
The Battlement Mesa natural gas wells and associated infrastructure will be located
within Township 7 South, Range 95 West, of the 6th P.M. Construction activities will
include clearing/maintenance of drilling pads, clearing/maintenance of natural gas
facilities (compressor stations), construction/maintenance of access roads, and the
eventual construction of natural gas flow and gathering pipelines. The area of
disturbance including the natural gas well pads, the access roads and gathering system
pipeline will be greater than one acre.
Currently there are actively producing wells and natural gas facilities within the
Battlement Mesa project area. Refer to Appendix F for information regarding existing
facilities, proposed facilities, and facilities under construction. New disturbances will
occur as additional access roads and well pads are constructed and/or maintained.
1.3 Project Owner and Operator
The Project owner/operator:
Ursa Operating Company, LLC
792 Buckhorn Drive
Rifle, CO 81650
Contact for the project is:
• Dwayne Knudson, Senior Environmental Specialist/ SWMP Administrator
Main: (970) 625-9922
E-mail: dknudson@ursaresources.com
Ursa will be in charge of all aspects of this project. Contractor(s) will do the actual
construction and grading, but all work will be supervised by Ursa or a representative(s),
and all decisions will be made by Ursa, or a representative(s).
3 May 2013
2.0 CONSTRUCTION SITE LOCATION DESCRIPTION
2.1 Site Location
The Battlement Mesa natural gas wells and associated infrastructure will be located
within Township 7 South, Range 95 West, of the 6th P.M. Once the natural gas wells are
completed and brought into production it will be necessary to construct flow lines,
gathering system pipelines and tank batteries to handle liquid storage, and construct
access roads to the individual well sites and pipelines access points.
The Battlement Mesa natural gas wells will be constructed using conventional cut and fill
earthmoving techniques. Typically, the working pad surface will have dimensions of
approximately 350' x 250'. There will be a 50' buffer area around the pad surface to
implement stormwater BMPs. Specific pad dimensions may vary depending on the
planned drill rig, number of wells to be drilled from each pad, and local conditions.
After all well pads have been constructed and all production facilities have been installed,
the well pad will be graded to reduce cut and fill slopes and to minimize the overall size
of the pad. The well pad will be revegetated after grading activities have been
completed. This "interim reclamation" phase will exist until 70% stabilization (including
revegetation, compacted road surfaces, etc.) has been reached, after which "final
stabilization" will be declared. "Final stabilization" will require the 70% stabilization
and the removal of any temporary BMPs. The well pad will remain in the "final
stabilization" phase of the long-term production configuration for as much as 30 years or
more (typically, until the well's production declines to sub -economic levels). After a
well has been plugged and abandoned and surface facilities removed, the well pad will be
graded to restore approximate pre -disturbance contours and will be revegetated.
In areas that are disturbed by well pad construction, topsoil will be stripped and
stockpiled near the site. Topsoil stockpiles will be seeded as soon as practicable to
preserve the topsoil resource. Soil materials will be managed so that erosion and
sediment transport are minimized.
Site Maps
Refer to Appendix A for the Field Wide Map showing locations of well pads, access
roads, pipelines and to Appendix F for site-specific maps.
Maps will be generated for each applicable well pad depicting construction site
boundaries, ground disturbance areas, cut and fill areas, all storage areas, all structural
and non-structural BMPs, and all potential pollution sources.
2.2 Schedule of Construction Activities
Construction schedules will vary. Minor road maintenance will occur on an "as needed"
basis. Refer to Appendix F for information regarding site-specific phases and
maintenance activities for well pads and access roads.
Once an approved drilling permit application has been received from the Colorado Oil &
Gas Conservation Commission (COGCC), clearing and grading activities will be
4 May 2013
scheduled and performed at the well pad sites. Each location will have four (4) phases,
Construction, Temporary, Interim and Final.
Construction:
Prior to any earth moving activities commencing, temporary BMPs will be installed
around the proposed perimeter of the site. Portable lavatories, trash receptacles and
material storage will be identified on the site map as each location is developed. Trees,
shrubs, and any slash or grub piles will be utilized as a brush barrier in conjunction with
other sediment and erosion control measures, such as a straw bale barrier, wattles, or an
earthen berm. Typical pad construction will establish cut and fill slopes, an earthen berm
around the toe of the fill slope, and a diversion ditch at the top of the cut slope. Once
construction activities are completed, topsoil will be spread across all berms and seeded.
Please refer to Appendix F for each site-specific map and plan for details.
Temporary:
A site will transition to the temporary phase once pad construction has been completed,
all temporary and permanent BMPs have been installed, and seed has been applied to all
applicable berms and fill slopes. Activities in this phase include:
• Setting conductors;
• Surface hole drilling;
• Production; and
• Completions.
Interim:
Interim reclamation will commence once all wells for the pad have been drilled and
infrastructure has been set on the pad. The footprint of the pad will be reduced to
operational surface use. Portions of the pad no longer necessary for everyday operations
will be recontoured, surface roughened and seeded. Permanent BMPs will be installed
during interim reclamation. Activities in this phase include:
• Recompletions;
• Operations.
Final:
Final reclamation of a pad will be achieved once: the well has been plugged and
abandoned; a uniform vegetative cover has been established with a plant density of 70
percent or greater of pre -disturbance vegetative cover; permanent erosion control
methods have been implemented; and surface use areas have been graveled.
A well pad may be removed from this SWMP once stabilization is achieved.
Stabilization will be considered achieved when: construction activities are complete and
all disturbed areas have either been built on, paved, or a uniform vegetative cover
established with a density of at least 70 percent of pre -disturbance levels, or equivalent
permanent, physical erosion reduction methods have been employed.
5 May 2013
2.3 Runoff Characteristics
Runoff characteristics are based on site topography, soil type, and soil/vegetative cover.
According to the Natural Resource Conservation Service (NRCS), the project area of
Battlement Mesa consists of the following soils:
• Arvada loam, (6-20%): This deep, well drained, sloping soil is on fans and high
terraces. Elevation ranges from 5,100 to 6,200 feet. Average annual precipitation
is 12 inches. Average annual air temperature is about 48 degrees F and the
average frost free period is 120 days. Permeability is very slow and available
water capacity is high. The effective rooting depth is 60 inches or more. Runoff is
moderately rapid and the hazard of water erosion is severe.
• Bucklon-Inchau loams, (25-50%): These moderately sloping to very steep soils
are on ridges and mountainsides. Elevation ranges from 7,000 to 9,500 feet. The
average annual precipitation is about 18 inches, the average annual air
temperature is about 40 degrees F, and the average frost -free period is less than 75
days. The Bucklon soil is shallow and well drained. Permeability of the Bucklon
soil is slow and available water capacity is very low. The effective rooting depth
is 10 to 20 inches. Runoff is medium and the hazard of water erosion is severe.
The Inchau soil is moderately deep and well drained. Permeability of the Inchau
soil is moderate and available water capacity is moderate. The effective rooting
depth is 20 to 40 inches. Runoff is medium and the hazard of water erosion is
severe.
• Ildefonso stony loam, (6-25%): This deep, well drained, moderately sloping to
hilly soil is on mesas, benches, and sides of valleys. Elevation ranges from 5,000
to 6,500 feet. The average annual precipitation is about 14 inches, the average
annual air temperature is about 46 degrees F, and the average frost -free period is
125 days. Permeability is moderately rapid and available water capacity is low.
The effective rooting depth is 60 inches or more. Runoff is medium and the
hazard of water erosion is moderate.
• Idefonso stony loam, (25-45%): This deep, well drained, hilly to steep soil is on
mesa breaks, sides of valleys, and alluvial fans. Elevation ranges from 5,000 to
6,500 feet. The average annual precipitation is about 14 inches, the average
annual air temperature is about 46 degrees F, and the average frost -free period is
125 days. Permeability is moderately rapid and available water capacity is low.
The effective rooting depth is 60 inches or more. Runoff is medium and the
hazard of water erosion is moderate.
• Morval loam, (3-12%): This deep, well drained, gently sloping to rolling soil is
on mesas and sides of valleys. Elevation ranges from 6,500 to 8,000 feet. The
average annual precipitation is about 15 inches, the average annual air
temperature is about 44 degrees F, and the average frost -free period is 100 days.
Permeability is moderate and available water capacity is moderate. The effective
rooting depth is 60 inches or more. Runoff is slow and the hazard of water erosion
is slight.
6 May 2013
• Morval-Tridell complex, (6-25%): These moderately sloping to hilly soils are
on alluvial fans and sides of mesas. Elevation ranges from 6,500 to 8,000 feet.
The average annual precipitation is about 15 inches, the average annual air
temperature is about 44 degrees F, and the average frost -free period is 100 days.
The Morval soil is deep and well drained. Permeability of the Morval soil is
moderate and available water capacity is moderate. The effective rooting depth is
60 inches or more. Runoff is slow and the hazard of water erosion is slight. The
Tridell soil is deep and well drained. Permeability of the Tridell soil is moderately
rapid and available water capacity is low. The effective rooting depth is 60 inches
or more. Runoff is medium and the hazard of water erosion is moderate.
• Nihill channery loam, (1-6%): This deep, well drained, nearly level to gently
sloping soil is on alluvial fans and sides of valleys. Elevation ranges from 5,000 to
6,500 feet. The average annual precipitation is about 13 inches, the average
annual air temperature is about 48 degrees F, and the average frost -free period is
125 days. Permeability is moderately rapid and available water capacity is low.
The effective rooting depth is 60 inches or more. Runoff is slow and the hazard of
water erosion is moderate.
• Potts loam, (3-6%): This deep, well drained, moderately sloping soil is on mesas,
benches, and sides of valleys. Elevation ranges from 5,000 to 7,000 feet. The
average annual precipitation is about 14 inches, the average annual air
temperature is about 46 degrees F, and the average frost -free period is 120 days.
Permeability is moderate and available water capacity is high. The effective
rooting depth is 60 inches or more. Runoff is slow and the hazard of water erosion
is moderate.
• Potts loam, (6-12%): This deep, well drained, moderately sloping to rolling soil
is on mesas, benches, and sides of valleys. Elevation ranges from 5,000 to 7,000
feet. The average annual precipitation is about 14 inches, the average annual air
temperature is about 46 degrees F, and the average frost -free period is 120 days.
Permeability is moderate and available water capacity is high. The effective
rooting depth is 60 inches or more. Runoff is medium and the hazard of water
erosion is severe.
• Potts-Ildefonso complex, (12-25%): These strongly sloping to hilly soils are on
mesas, alluvial fans, and sides of valleys. Elevation ranges from 5,000 to 6,500
feet. The average annual precipitation is about 14 inches, the average annual air
temperature is about 46 degrees F, and the average frost -free period is 120 days.
The Potts soil is deep and well drained. Permeability of the Potts soil is moderate
and available water capacity is high. The effective rooting depth is 60 inches or
more. Runoff is medium and the hazard of water erosion is moderate. The
Ildefonso soil is deep and well drained. Permeability is moderately rapid and
available water capacity is low. The effective rooting depth is 60 inches or more.
Runoff is medium and the hazard of water erosion is moderate.
• Torriorthents-Camborthids-Rock outcrop complex, (steep): This broadly
defined unit consists of exposed sandstone and shale bedrock, loose stones, and
soils that are shallow to deep. Torriorthents are shallow to moderately deep.
7 May 2013
Camborthids are shallow to deep. The Rock outcrop is mainly Mesa Verde
sandstone and Wasatch shale. Elevation ranges from 5,000 to 8,500 feet. The
average annual precipitation is about 10 to 15 inches, the average annual air
temperature is 39 to 46 degrees F, and the average frost -free period is 80 to 105
days.
• Torriorthents-Rock outcrop complex, (steep): This broadly defined unit
consists of exposed sandstone and shale bedrock, and stony soils that are shallow
to moderately deep. Torriorthents are shallow to moderately deep. The Rock
outcrop is mainly Mesa Verde sandstone and Wasatch shale. Elevation ranges
from 5,000 to 8,500 feet. The average annual precipitation is about 10 to 15
inches, the average annual air temperature is 39 to 46 degrees F, and the average
frost -free period is 80 to 105 days.
• Wann sandy loam, (1-3%): This deep, somewhat poorly drained, nearly level to
gently sloping, low-lying soil is on terraces and bottom land in valleys. Elevation
ranges from 5,000 to 6,500 feet. The average annual precipitation is about 12
inches, the average annual air temperature is about 48 degrees F, and the average
frost -free period is 120 days. Permeability is moderately rapid and available water
capacity is high. The effective rooting depth varies with the level of the water
table but is about 2 feet. Runoff is slow and the hazard of water erosion is
moderate.
2.4 Receiving Waters
Receiving waters include Battlement Creek, Dry Creek, and many unnamed tributaries.
The ultimate receiving water is the Colorado River. Refer to Appendix A for the Field
Wide Map or to Appendix F for site-specific maps.
2.5 Native Vegetation
Native vegetation consists of wheatgrass, needleandthread, Pinyon, Utah Juniper,
Bitterbrush, Shadescale, Saltbush, Greasewood, Rabbitbrush, Yucca, Galleta grass, a
variety of Astragalus and Sagebrush. Vegetative cover varies from 40% to 100%
depending on site specificity.
8 May 2013
3.0 POTENTIAL POLLUTION SOURCES
Potential pollution sources associated with construction sites and natural gas development
include:
Construction Phase:
• Sediment resulting from soil stockpiles and other areas cleared of vegetation;
• Fuels and lubricants from equipment;
• Trash and debris from clearing activities, construction materials, and workers;
• Sanitary sewage associated with portable toilets.
Temporary Phase:
• Drilling operations
o Fuels and lubricants from equipment;
o Drilling chemicals;
o Sanitary sewage associated with portable toilets;
o Trash and debris from drilling activities, materials, and workers;
o Well completion fluids;
o Drill cuttings and drilling fluids;
o Produced water; and
o Condensate.
• Completions
o Fuels and lubricants from equipment;
o Sanitary sewage associated with portable toilets;
o Trash and debris from completion activities, construction materials, and
workers;
o Well completion fluids;
o Produced water; and
o Condensate.
• Operations
o Fuels and lubricants from equipment on site;
o Trash and debris from workers on site;
o Anti -freezing agents;
o Produced water; and
o Condensate.
Interim Phase:
• Operations
o Fuels and lubricants from equipment on site;
o Trash and debris from workers on site;
o Anti -freezing agents;
o Produced water; and
o Condensate.
• Re -Completions
o Fuels and lubricants from equipment and spills from fueling;
o Sanitary sewage associated with portable toilets;
o Trash and debris from completion activities, construction materials, and
workers;
o Well completion fluids;
9 May 2013
o Produced water; and
o Condensate.
Final Phase:
• Sediment resulting from recontoured soils;
• Fuels and lubricants from equipment;
• Trash and debris from clearing activities, construction materials, and workers;
• Sanitary sewage associated with portable toilets;
(A list of chemicals and MSDS sheets can be found onsite during drilling/completions and recompletion
operations).
The most common source of pollution from construction activities is sediment, which can
be carried away from the work site with stormwater runoff, and ultimately impact the
water quality of a receiving stream. Clearing, grading, and otherwise altering previously
undisturbed land can increase the rate of soil erosion over pre -disturbance rates.
Petroleum products can also be potential stormwater pollutants. These products are used
in construction activities to power or lubricate equipment, and include: fuel, gear oil,
hydraulic oil, brake fluid, and grease.
Waste generated onsite during drilling/completions and operation phases will be
managed in accordance with the Ursa Waste Management Plan.
Debris from lay -down areas, residue from equipment cleaning and maintenance, and
solid waste generated from land clearing operations and human activity (trees, brush,
paper, trash, etc.) present other potential pollution sources within the construction site.
For site specific potential pollution sources, refer to Appendix F. Maps of each well pad
will be generated showing the locations of all potential pollution sources.
No concrete washout activities are expected.
Vehicle tracking pads may be required for well pad development within the Battlement
Mesa. See Appendix D for details pertaining to tracking pad installation.
All BMPs implemented throughout the project are intended to mitigate for the release of
sediment and all other potential pollution sources described above, and listed in the site
specific plan (Appendix F) and installation details (Appendix D).
Ursa Operating Company spill prevention and response policies must be followed and
include the following:
• Notification procedures to be used in the event of a material release or accident.
At a minimum, the production supervisor should be notified. Depending on the
nature of the spill and the material involved, Ursa Environmental staff, the
CDPHE, downstream water users, or other agencies may also need to be notified.
The WQCD toll-free 24-hour environmental emergency spill reporting line is
(877) 518-5608.
• Provisions for absorbents are to be made available for use in fuel areas.
10 May 2013
However, if petroleum hydrocarbons or other chemicals impact stormwater as a result of
industrial activities onsite, the impacted stormwater will be addressed by following the
Ursa Spill Prevention Control and Countermeasures (SPCC) plan and Waste
Management Plan if applicable waste in generated.
11 May 2013
4.0 DESCRIPTION OF SOIL CONTROL MEASURES
The objective of erosion sediment controls is to minimize the release of sediments and
any other potential pollutants by stormwater runoff. This can be accomplished through
the use of structural and/or nonstructural controls. This section describes erosion and
sediment controls to be implemented prior to, during and after the construction of a
pad/ROW or access road to minimize possible pollutant impacts to stormwater runoff.
Refer to Appendix D for implementation details of soil control measures.
Refer to Appendix F for locations of soil control measures.
4.1 Structural Practices for Erosion and Sediment Control
Structural practices implemented to provide erosion and sediment control can include
temporary and permanent BMPs. Temporary structural BMPs include, but are not limited
to: straw bale barriers/check dams, and straw fiber rolls/wattles. When applicable,
temporary BMPs will be implemented during construction and interim reclamation
phases. All temporary BMPs will be removed and disposed of upon final stabilization.
Permanent structural BMPs include, but are not limited to: earthen berms, drainage dips,
bar ditches, diversion ditches, sediment traps, culvert inlet/outlet protection, and rock
check dams.
4.1.1 Straw Bale and Rock Check Dams
Straw bale and rock check dams will be installed in areas of concentrated flow. The
purpose of a check dam is to reduce the velocity of water enough to allow sediment to
settle, while allowing the clean water to continue migrating. Some sediment will
accumulate behind the check dam. Sediment should be removed from behind the check
dams when it has accumulated to one-half of the original height of the dam and properly
disposed of. Check dams will be inspected for erosion along the edges of the check dams
and repaired immediately, as required.
4.1.2 Straw Wattles/Straw Rolls
Straw rolls/wattles are intended to capture and keep sediment on a disturbed slope. Straw
rolls are useful to temporarily stabilize slopes by reducing soil creep and sheet and rill
erosion until permanent vegetation can be established. Straw rolls will last an average of
one (1) to two (2) years. The slope needs to be prepared before the rolls are placed. Small
trenches are created across the slope on the horizontal contour. The trench should be deep
enough to accommodate half the thickness of the roll. The trenches need to be 10 to 25
feet apart. The rolls need to be installed perpendicular to water movement, parallel to the
slope contour. The rolls need to fit snugly against the soil. No gaps should be between the
soil and roll. There should only be one (1) to two (2) inches of stake exposed above the
roll. The stakes should be installed every four (4) feet.
4.1.3 Diversion Berm/Channel
Diversion ditches can be a temporary or permanent structural BMP installed to direct
runoff or run-on stormwater away from construction activity. Ditches direct water into a
sediment trap or other BMP structure designed to capture sediment while allowing water
to move through.
12 May 2013
4.1.4 Culvert Inlet/Outlet Protection
Inlets and outlets of culverts will be protected to prevent sediment build up within the
culvert, thus maintaining culvert functionality. Temporary protection during construction
can be implemented by installing straw bales or straw wattles around the inlet/outlet. For
permanent protection, inlets/outlets shall be protected via rock armoring. Sediment
accumulated at the inlet/outlet shall be removed, as needed, to ensure that there will be no
blockage of the culvert.
4.1.5 Sediment Traps
Sediment traps are structural BMPs installed to trap sediment that has been transported
from other BMPs including, but not limited to: berms, perimeter diversion ditches, bar
ditches, and drainage dips. Size and shape of each sediment trap shall depend on the
specific location and surrounding topography of each site.
4.1.6 Armored Run -downs
Armored rundowns are structural BMPs installed to minimize the erosion potential of the
underlying substrate. Installation of armored rundowns can include, but is not limited to,
inlet and outlet protection associated with sediment traps and ditches (i.e., sediment,
diversion).
4.1.7 Straw Bale Barriers
A straw bale barrier is a series of entrenched straw bales that are used to intercept and
direct sheet flows. The barrier reduces runoff velocity and filters sediment from
stormwater as it moves through the barrier. The barrier may also be used to protect
against erosion.
4.1.8 Water Bars
Water bars can be a temporary or permanent structural BMP installed to direct runoff or
run-on stormwater away from construction activity. Bars slow velocity of water, and
direct water into a sediment trap, or other BMP structure designed to capture sediment
while allowing water to move through.
4.1.9 Tracking Pads
Tracking pads are structural BMPs installed to trap sediment onsite prior to the respective
vehicle leaving the location. Size and shape of the respective tracking pad(s) shall depend
on the specific locations and surrounding topography of each site.
4.2 Non -Structural Practices for Erosion and Sediment Control
Non-structural practices implemented for erosion and sediment control will consist of
permanent BMPs that will be utilized during all project phases from construction to
interim reclamation, and ultimately to final stabilization. Non-structural controls typically
include, but are not limited to: vegetative buffers, mulching, seeding of disturbed areas,
erosion control blankets, and surface roughening.
4.2.1 Vegetative Buffers
Vegetative buffers are areas of existing vegetation stands that are utilized as a
supplemental BMP. Vegetative buffers are located on any or all edges of a project
13 May 2013
boundary. They provide a filtering effect by minimizing velocity of stormwater runoff
enough to allow sediment to settle out while allowing clean water to continue with its
natural drainage route.
4.2.2 Seeding of Disturbed Areas
Seeding of disturbed areas will be implemented as a measure taken to achieve final
stabilization. Upon construction completion, all disturbed areas to undergo reclamation
shall be seeded. As a disturbed area is seeded, it will remain in the interim reclamation
phase until the site has reached a vegetative cover area of 70% of pre -disturbance
conditions. At this point, the site will be at the final stabilization phase. The main
objective of drill seeding is to place the seed in the soil at the depth most favorable for
seed germination. Topography will determine if seed will be applied via a drill seeder or
if there is a need for broadcasting. Hand broadcasting is commonly used in areas too
small for large equipment or if the terrain is too steep for equipment to work safely.
Broadcast seeding throws the seeds randomly on the soil surface. This allows for a more
mosaic plant population, but must be applied at twice the drill seed rate for successful
germination. Once seed has been broadcast, raking or chaining the area will ensure seed
to soil contact. Refer to Appendix E for the Project seed mixes and associated application
rates.
4.2.3 Mulching
Mulching is a non-structural BMP implemented to aid in seed establishment. After a
disturbed area has been seeded, certified weed -free straw mulch will be applied. Where
accessible, the mulch will be crimped into the ground to provide additional soil
stabilization.
4.2.4 Surface Roughening
Surface roughening is an erosion control practice often used in conjunction with grading.
Surface roughening involves increasing the relief of a bare soil surface with horizontal
grooves by either stair -stepping (running parallel to the contour of the land) or using
construction equipment to track the surface. Slopes that are not fine graded and left in a
roughened condition also reduces erosion. Soil roughening reduces runoff velocity,
increases infiltration, reduces erosion, traps sediment, and prepares the soil for seeding
and planting; giving the seed an opportunity to germinate and establish. Used as a
temporary or permanent BMP, surface roughening may take many different forms
including, but not limited to, ripping, pocking, and tracking.
14 May 2013
5.0 PHASED BMP IMPLEMENTATION
During the Battlement Mesa development, each project will consist of a construction
phase, a temporary phase, an interim phase, and a final stabilization phase. There will be
some BMPs implemented that can be utilized for each phase, however there will be
certain controls implemented specifically for each phase.
5.1 Construction
The construction phase of the project will consist of clearing the vegetation on the pad
location, cut and fill activities for each pad and access road, and general grading.
Appropriate BMPs will be installed for this phase of the construction. The following
outlines the necessary steps of the construction phase:
Well Pad(s) and Facilities
• Temporary BMPs will be installed prior to construction;
• Vegetation Clearing: Vegetation will be removed and placed around edge of
disturbed area on down gradient side of fill slope. This will provide a brush
barrier BMP for construction;
• Topsoil will be utilized for berms or diversions;
• Permanent BMPs will be installed, as applicable, to each location;
• Top soil stock piles, berms, and fill slopes will be seeded;
• Gravel will be applied to the surface use area of the pad; and
• Concrete and truck washout area will be established, if applicable, once
construction begins.
Pipeline(s)
• Temporary BMPs will be installed prior to construction;
• Vegetation will be cleared from Right of Way (ROW) and placed down gradient;
• Spoils piles from trenching will be placed upgradient of trench when possible;
• Topsoil will be segregated from spoils;
• Trench will be backfilled upon completion of pipeline installation;
• ROW will be drill seeded and mulched, as applicable, at each site;
• Permanent BMPs will be installed as ROW is reclaimed; and
• Ditches/berms will be installed along the ROW when possible.
5.2 Temporary
A location will be classified as being in the temporary phase during drilling and
completions operations. Appropriate BMPs will be installed for this phase. The following
outlines the necessary steps of the Temporary phase:
Well Pad(s) and Facilities
• Temporary BMPs may be left in place along the perimeter of the pad;
• Topsoil will be utilized for berms or diversions;
• Permanent BMPs will be installed, as applicable, to each location;
15 May 2013
• Gravel will be applied to the surface use area of the pad; and
• Concrete and truck washout area will be established, if applicable.
Pipeline(s)
No temporary phase for pipeline ROWs.
5.3 Interim
Interim will be the phase of each pad location between temporary and final stabilization.
A pad will enter into interim reclamation when drilling and completion operations have
been completed, the footprint of the pad has been reduced, disturbed areas have been
seeded, and permanent BMPs have been installed. Temporary BMPs that were
implemented during the construction phase may continue to be maintained during interim
reclamation. Projects will remain in interim reclamation until disturbed areas have been
reclaimed to 70% of pre -disturbance conditions or otherwise permanently stabilized (i.e.
graveled). Refer to Appendix F for BMPs implemented during the interim reclamation
phase of each site. A ROW will enter into interim phase when construction is completed,
disturbed areas have been seeded, and permanent BMPs have been installed.
Well Pad(s) and Facilities
• Footprint of pad will be reduced to operational surface use;
• Topsoil will be redistributed across the area of disturbance;
• Reclaimed areas will be seeded and mulched immediately, as applicable; and
• Permanent BMPs will be installed as temporary BMPs are removed, if no longer a
viable BMP.
Pipeline(s)
• Topsoil will be redistributed across the surface of the disturbed area;
• Vegetative material replacement/removal: Based upon landowner requirements,
stripped vegetation may be hauled off-site or redistributed along the disturbed
area;
• Seeding: When applicable the disturbed ROW will be seeded post construction.
The seed mix will vary depending on location and surface ownership, and will
generally match the surrounding vegetation. Refer to Appendix E for seed mixes
and their respective application rate(s); and
• Mulching: When applicable, all disturbed areas to be reclaimed will be mulched
post seeding. A certified weed -free straw will be crimped into the ROW to keep
an adequate moisture level in the seedbed. Hydromulch with a tackifier may also
be utilized.
5.4 Final Stabilization
Areas which have been disturbed are considered to be stabilized when a uniform
vegetative cover with a density of 70 percent of the pre -disturbance levels has been
established, or when an equivalent permanent, physical erosion reduction method is in
place.
16 May 2013
Areas which are not used for facilities, access roads, material storages yards, or other
work areas will be stabilized with vegetation. Areas that are stabilized with vegetation
will be considered to have achieved final stabilization when a uniform stand of vegetation
with a density of at least 70 percent of the pre -disturbance has been established. Other
areas that may include facilities, access roads, material storage yards, and other work
areas will be stabilized through the use of permanent, physical erosion reduction methods
that include, but are not limited to:
• Surface covering — covering of the soil surface with structures that inhibit contact
of precipitation with the soil surface, which is generally considered to be
placement of a structure (building or tank) over the soil surface.
• Gravel — gravel will be applied in areas such as access roads, materials storage
yards, and other work surfaces. Some gravel may be lost due to erosion from
intense precipitation events or due to vehicle traffic. Graveled surfaces will be
periodically inspected to determine the need for gravel replacement. Graveled
surfaces will be replaced or repaired (through grading) when inspections reveal
that the gravel surface is no longer effectively covering the soil surface or
performing its desired function.
• Surface contouring/ditching — road surfaces that will not be graveled shall be
constructed in a manner to prevent excessive erosion. Roads will be sloped in a
way to encourage positive drainage into bar ditches, and ultimately into sediment
control structures. A compact, earthen berm will be constructed at the uphill side
of the road slope.
17 May 2013
6.0 MATERIALS HANDLING AND SPILL PREVENTION
6.1 Waste Management and Disposal
The various construction activities mentioned in this SWMP will generate various other
waste materials during the course of each phase. These wastes typically include, but are
not limited to, the following:
Construction:
• Trees and shrubs from clearing operations;
• Trash and debris from construction materials and workers; and
• Sanitary sewage.
Temporary:
• Drill cuttings;
• Chemicals/containers used for drilling;
• Chemicals/containers used for completions;
• Trash and debris from drilling operations/completion operations and workers; and
• Sanitary sewage.
Interim:
• Chemicals used for flow enhancement;
• Chemicals/containers used for completions;
• Sanitary sewage.
Final:
• Chemicals used for flow enhancement;
• Chemicals/containers used for completions;
• Sanitary sewage.
Each of these wastes will be managed so as to not contribute to stormwater pollution.
Trees and shrubs will be piled along the toe of fill slopes to provide additional sediment
control. Please refer to the Ursa Waste Management Plan for proper handling and
disposal of each waste stream. Construction trash and debris will be collected in
appropriate containers and hauled off-site for disposal in suitable landfills. Sanitary
waste will be contained in portable toilets or other storage tanks with waste materials
regularly pumped and transported off-site for proper disposal at approved facilities.
6.2 Fuels and Materials Management
Petroleum Products
Petroleum products which may be present at the construction site include: gasoline, diesel
fuel, lubricant oils, hydraulic oils, used oils, and solvents. Gasoline and diesel fuel will be
stored in portable storage tanks with secondary containment. Lubricant, hydraulic, and
miscellaneous oils and solvents will be stored in containers up to 55 -gallons in volume,
opened containers will be stored in secondary containment.
Pollutants from petroleum products used during construction activities adhere easily to
soil particles and other surfaces. In case of a spill or leak, soils contaminated with
petroleum products will be contained and removed to a proper disposal site. Please see
the Waste Management Plan for details of handling and disposal. Erosion and sediment
18 May 2013
control practices will aid in retention of spills or leaks. Use of secondary containment and
drip pans will reduce the likelihood of spills or leaks contacting the ground. Proper
maintenance and safe storage practices will reduce the chance of petroleum products
contaminating the site. Oily wastes such as crankcase oil, cans, rags, and paper
containing oils will be placed in proper receptacles and disposed of or recycled. An
additional source of petroleum contamination is leaks from equipment and vehicles.
Routine daily inspections will be conducted to identify leaks and initiate corrective
actions, if needed.
The following guidelines for storing petroleum products will be applied:
• All product containers will be clearly and properly labeled;
• Opened drums (containing fluid) will be kept off the ground within secondary
containment and stored under cover when necessary;
• Fuel tanks will be stored within areas containing secondary containment;
• Lids of drummed materials will be securely fastened;
• Emergency spill response procedures will be available onsite (persons trained in
handling spills will be on-call at all times);
• Spill cleanup and containment materials (absorbent, shovels, etc.) will be readily
available. Spills will be immediately cleaned up and contaminated materials will
be properly stored onsite until they can be disposed of in accordance with Ursa's
Spill Plan and applicable regulations;
• Storage areas and containers will be regularly monitored for leaks and repaired or
replaced as necessary. Construction personnel should be informed about proper
storage and handling of materials during weekly subcontractor or safety meetings;
• Provisions for absorbents are to be made available for use in fuel areas; and
• Spill response will be immediate; contaminated soils will be contained and
disposed of in accordance with Ursa's Waste Management Plan and applicable
regulations.
Notification procedures are to be used in the event of a material release or accident. At a
minimum, the field supervisor should be notified. Depending on the nature of the spill
and the material involved, Ursa staff, the CDPHE, downstream water users, or other
agencies may also need to be notified.
Notification Requirements:
• Ursa Facility Manager
• Project Environmental Coordinator/Regional Coordinator
• State Agency in accordance with applicable regulations
Hot Line Numbers:
• WQCD toll-free 24-hour environmental emergency spill reporting line is:
1 (877) 518-5608.
• Colorado Department of Natural Resources Oil and Gas Conservation
Commission - oil spills (303) 894-2100.
• National Response Center 800-424-8802.
19 May 2013
A construction site spill report will include the following details of the incident:
• The date and time of the incident;
• A description of the material spilled;
• Quantity spilled;
• Circumstances that caused spill;
• List of water bodies affected or potentially affected by spill;
• Statement verifying whether an oil sheen is present;
• Size of the affect area;
• An estimate of depth;
• Determination of possible migration of spill off Ursa property;
• Statement of time of cleanup, methods being used, and personnel involved; and
• Name of person to first observe spill, witnesses and their affiliations.
Other Chemical Product Management
Various additional materials will be used and stored on site for use in construction. These
materials will be stored appropriately and managed to minimize spills and leaks. Storage
areas will be regularly inspected, and any minor spills or leaks will be cleaned up
immediately. MSDS sheets will be located on-site for all chemicals present on the
location.
Materials Management
The construction supervisor will maintain a lay -down or staging area for equipment and
materials storage on-site. These areas will be maintained with good housekeeping and
will be inspected on a regular basis for spills, leaks, and potential contamination.
6.3 Construction Site Housekeeping
Housekeeping will consist of neat and orderly storage of materials and containerized
fluids. Liquid wastes will be temporarily stored in sealed containers and regularly
collected and disposed of at appropriate off-site facilities. Solid waste such as household
trash will be placed in trash receptacles. In the event a spill occurs, prompt cleanup is
required to minimize any commingling of waste materials with stormwater runoff.
Routine maintenance will be limited to fueling and lubrication of equipment. Drip pans
will be used during routine fueling and maintenance to contain spills or leaks. Any waste
product from maintenance will be contained and transported off-site for disposal or
recycling. There will be no major equipment overhauls conducted on site. Equipment will
be transported off-site when major overhauls are necessary.
Cleanup of trash and discarded materials will be conducted at the end of each work day.
Cleanup will consist of patrolling the road way, access areas, and other work areas to
pick up trash, scrap debris, other discarded materials, along with any contaminated soil.
Upon collection, these waste materials will be disposed of properly.
20 May 2013
7.0 DEDICATED CONCRETE OR ASPHALT BATCH PLANTS
Not applicable to anticipated projects within the Battlement Mesa project area.
21 May 2013
8.0 VEHICLE TRACKING CONTROLS
Vehicle track pads will be installed at all locations where it is considered necessary.
Track pads will be approximately 20 feet wide and 50 feet long. This will eliminate
sediment transport onto public roadways. See Appendix D for BMP installation details.
22 May 2013
9.0 INSPECTION AND MAINTENANCE PROCEDURES
To meet the requirements of the Permit, inspection and maintenance of erosion and
sediment controls must occur during the project. Continued inspection and maintenance
is required for specific structures after construction is completed. The inspection program
will include the following:
1. A certified person familiar with the SWMP and control measures will conduct the
inspections.
2. Inspections will cover the following items within the construction site:
• Disturbed areas without stabilization;
• All structural and non-structural BMPs (temporary and permanent);
• Material storage areas;
• Surface water diversions;
• Down gradient areas;
• New access roads; and,
• Site vehicle entrance/exit locations.
3. Inspections will occur at least once every 14 calendar days (during construction)
and after a significant precipitation event, or snow melt event that causes potential
for erosion. Once all measures have been taken to reach interim reclamation,
inspections shall occur at least once every 30 calendar days.
4. A log of inspections will be maintained.
5. Water quality will be visually assessed for all receiving streams and discharge
areas during each inspection.
6. Disturbed areas and material storage areas that are exposed to precipitation will be
inspected for evidence of pollutants entering nearby drainages.
7. Roads used for vehicle access will be inspected for evidence of off-site sediment
transport.
8. Following each inspection, the SWMP will be modified, as necessary, to include
additional controls designed to correct identified problems. Necessary revisions to
the SWMP will be made within 7 days of the inspection.
9. An inspection report summarizing the scope of the inspection, the name of the
person conducting the inspection, the date of the inspection, and observations
relating to proper implementation will be prepared. Inspection reports will be
retained for at least 3 years from the date that the site is finally stabilized.
10. Actions taken to modify any stormwater control measure will be recorded and
maintained with the SWMP.
11. If no deficiencies are found during the inspection, the report will contain
certification that the site is in compliance with the SWMP.
Maintenance Procedures
Maintenance will include prompt repairs and/or adjustments to any erosion and sediment
control structures that are deteriorating or found to be performing inadequately. BMP
conditions and dates of BMP maintenance will be documented within the stormwater
inspection checklists. Repairs are to be made as soon as possible and prior to the next
anticipated storm event.
23 May 2013
Inspection Forms
Inspection forms shall be a part of this SWMP and will include information such as dates
of maintenance/modifications of existing BMPs, installation of new BMPs, any site
housekeeping requirements, and general comments. Refer to Appendix C for an example
of the stormwater inspection document.
24 May 2013
10.0 NON-STORMWATER DISCHARGES
No allowable sources of non-stormwater discharges are anticipated from the project.
Some possible exceptions include, but are not limited to, fire prevention/suppression or
dust control activities. Produced water will be collected and hauled off-site to a proper
storage facility and not discharged.
25 May 2013
11.0 CERTIFICATIONS
11.1 Owner/Applicant Certification
1 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(s) who manages the system, or the person(s) directly responsible for
gathering the information, I verify that the information submitted within this plan is, to
the best of my knowledge and belief, true, accurate, and complete. 1 am aware that there
are significant penalties for submitting false information, including the possibility of fine
and imprisonment for knowledge of violations.
Signature: 101.-.) 1 --'--
Name:
-'- -Name: Dwayne Knudson
Title: Senior Environmental Specialist
Date: .3 - (-0- Z...017
Applicant Name & Address: Ursa Operating Company, LLC
792 Buckhorn Dr.
Rifle, CO 81650
Site Name and Location:
Battlement Mesa
Township 7 South
Range 95 West
Garfield County, Colorado
26 May 2013
11.2 Stormwater Management Plan Administrator
The SWMP Administrator is responsible for developing, implementing, maintaining, and
revising the SWMP. This individual is responsible for the accuracy, completeness, and
implementation of the SWMP.
SWMP Administrator Certification
1 certify under penalty of law that I understand the terms and conditions of the SWMP
and associated CDPS General Permit that authorizes stormwater discharges associated
with industrial activity from the construction sites identified as part of this certification.
Signature:
Name:
Title:
Dwayne Knudson
Senior Environmental Specialist
Date: 3- C-Zui7
Representing:
Company: Ursa Operating Company, LLC
Address: 792 Buckhorn Dr.
Address: Rifle, CO 81650
Phone: (970) 625-9922
27 May 2013
12.0 ADDITIONAL BMP REFERENCES
The structural and non-structural BMPs listed in this SWMP are intended to include all
BMPs that may be used for gas gathering projects. However, there may be situations
where a BMP is needed but not included in this SWMP, or project personnel may need
additional information on the installation, use, specifications, and/or maintenance of
BMPs. Additional information regarding various BMPs is available by referencing the
following:
For oil and gas operations, the Bureau of Land Management and U.S. Forest Service have
developed "Surface Operating Standards and Guidelines for Oil and Gas Exploration and
Development," "Gold Book." The most recent version (fourth edition) of this is
available on the internet at:
http://www.blm.gov/pgdata/etc/medialib/b1m/wo/MINERALS_ REALTY_ AND RES
OURCE_PROTECTION /energy/oil_and gas.Par.18714.File.dat/OILgas.pdf .
For designing, installing, and maintaining BMPs the Colorado Department of
Transportation (CDOT) has developed a BMP manual that is available on the internet at:
http : //www. coloradodot.info/programs/environmental/water-
quality/documents/CDOT%20Pocket%20Guide%20122211.pd£
For construction BMPs and surface stabilization methods, the Alabama Soil and Water
Conservation Committee have developed "Erosion Control, Sediment Control and
Stormwater Management on Construction Sites and Urban Areas, Volume 1 Developing
Plans and Designing Best Management Practices." This information is available on the
internet at: http://www.blm.gov/bmp/field%20guide.htm
For access roads, the US Forest Service and Bureau of Land Management have
developed "Low -Volume Roads Engineering, Best Management Practices Field Guide,"
which is available online at: http://www.blm.gov/bmp/field%20guide.htm
For seeding methods and applications information was obtained from the Practical
Handbook of Disturbed Land Revegetation. Frank F. Munshower, CRC Press Inc. 1994
I
111
I
1
III
CoLonatio Department
of Public Health
and Environment
CERTIFICATION TO DISCHARGE
UNDER
CDPS GENERAL PERMIT COR -0300000
STORMWATER ASSOCIATED WITH CONSTRUCTION ACTIVITIES
Certification Number: COR03K566
This Certification to Discharge specifically authorizes:
Ursa Operating Co LLC
to discharge stormwater from the facility identified as
Battlement Mesa Wen Field
To the waters of the State of Colorado, including, but not limited to:
Battlement Creek and Dry Creek - Colorado River
Facility Industrial Activity : Oil and Gas Production and/or Exploration,
Facility Located at:
1 70 and Battlement Pkwy, Battlement Mesa
Garfield County, CO 81636
Latitude 39.443, Longitude -108.009
Certification is effective: 5/21/2013 Certification Expires: 6/30/2012
ADMINISTRATIVELY CONTINUED
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.
Signed,
Nathan Moore
Construction/MS4/Pretreatment Unit Manager
Water Quality Control Division
Page 1 of 22
STATE OF COLORADO
John W. Hickenlooper, Governor
Christopher E. Urbina, MD, MPH
Executive Director and Chief Medical Officer
Dedicated to protecting and improving the health and environment of the people of Colorado
4300 Cherry Creek Dr. S.
Denver, Colorado 80246-1530
Phone (303) 692-2000
Located in Glendale, Colorado
http://www.cdphe.state.co.us
5/21/2013
Robert W Bleil, Reg and Env Mgr
Ursa Operating Co LLC
1050 17 St Ste 2400
Denver, CO 80202
Laboratory Services Division
8100 Lowry Blvd.
Denver, Colorado 80230-6928
(303) 692-3090
RE: Certification, Colorado Discharge Permit System
Permit No., COR030000, Certification Number: COR03K566
Dear Mr./Ms. Bieil;
Colorado Department
of Public Health
and Environment
The Water Quality Control Division (the Division) has reviewed the application submitted for the Battlement Mesa Well Field facility and determined
that it qualifies for coverage under the CDPS General Permit for Stormwater Discharges Associated with Construction Activities (the permit). Enclosed
please find a copy of the permit certification, which was issued under the Colorado Water Quality Control Act.
Facility: Battlement Mesa Well Field Garfield County
Construction Activities: Oil and Gas Production and/or Exploration,
Legal Contact (receives all legal documentation pertaining to the permit certification):
Phone number: 970-625-9922
Email: rbleil@ursaresources.com
Robert W BIeiI, Reg and Env Mgr
Ursa Operating Co LLC
105017 St Ste 2400
Denver, CO 80202
Facility Contact (contacted for general inquiries regarding the facility):
Robert W BIeii, Reg and Env Mgr
Billing Contact (receives the invoice pertaining to the permit certification):
Robert W Weil, Reg and Env Mgr
Ursa Operating Co LLC
1050 17 St Ste 2400
Denver, CO 80202
Any changes to the contacts listed above must be provided to the Division on a Change of Contact form. This form is available on the Division's website
at coloradowaterpermits.com.
Phone number: 970-625-9922
Email: rbleil@ursaresources.com
Phone number: 970-625-9922
Email: rbleil@ursaresources.com
The Annual Fee for this certification is $245.00, and is invoiced every July. Do Not PatiThis Now. The initial prorated invoice will be sent to the legal
contact shortly.
The Division is currently developing a new permit and associated certification for the above permitted facility. The development and review
procedures required by law have not yet been completed. The Construction Stormwater General Permit, which will expire June 30, 2012, will be
administratively continued and will remain in effect under Section 104(7) of the Administrative Procedures Act, C.R.S. 1973, 24-4-101, et seq (1982
rept. vol. 10) until a new permit/certification is issued and effective. The renewal for this facility will be based on the application that was received
5/14/2013.
Please read the enclosed permit and certification. If you have any questions please contact Kathleen Rosow, Environmental Protection Specialist, at
(303) 692-3521.
Sincerely,
Karen Harford, Administrative Assistant II
WATER QUALITY CONTROL DIVISION
Enclosures: Certification page; General Permit; Highlight Sheet; Termination form
xc: Permit File
/keh cert
Appendix C - URSA STORMWATER INSPECTION LOG
Applicable Regulatory Agency:
Construction Manager:
RECOMMENDED ACTIONS
Ursa
OPERATING
COMPANY
BMP LOC ID
BMP Type
M
•
Work Description / Comments
P
SITE MAP
[Site Map]
Field:
Project ID:
Type Infrastructure:
Date:
Battlement Mesa
INSPECTIONS
Current Inspection Cycle:
Scheduled Inspection:
"Signif Precip Event Inspection:
Post Construction Inspection:
Winter Exclusion:
Permit #
COR03K566
SITE STATUS
Construction Start Date:
Construction Completion Date:
Acres Disturbed:
Acres Restored:
Distance to Receiving Waters:
Processing Equipment
Number of Tanks:
Number of Separators:
Free Board in 2nd contmnt:
Comment:
House Keeping:
Spills and Leaks:
Other Equipment:
Materials Handling:
Vegetation
Seed Mix:
Date Planted:
Revegetated (70%):
Comment:
WORK COMPLETION (BMP CONTRACTOR USE ONLY)
Date Work Completed:
Title: Name:
Inspector Signature:
Site complies with the CDPS General Permit COR030000 in
accordance with the permit requirements and conditions.
M (Maintainence) CA (Corrective Action)
P (Priority): (1) - Immediate Action within 1-3 days (2) - Action within 1 week (3) - Action within 2 weeks (4) - Action within 4 weeks (5) - Action is Seasonal
Appendix D
Wattles - Preferred
Description and Purpose:
A wattle (also called a fiber roll) functions as a sediment control barrier for small drainage
areas, utilized to protect slopes and small drainages from erosive forces. Wattles are generally
made of bound straw material, but can consist of bound rock, coconut, wood chips or other
materials. Wattles placed on the face of slopes help intercept runoff, reduce flow velocities,
and provide removal of sediment from the runoff. The wattles interrupt the length of a slope
and help reduce erosion. Wattles do not function to filter run-off, and will not promote flows
penetrating their material. Their function is restricted to ponding run-off and overtopping.
Wattles placed in light run-off drainages with sheet flows slow water velocities and prevent
run-off concentration. The wattles help prevent drainage scour, and capture sediment.
Installation:
• Wattles shall be installed on the drainage contour where possible.
• The rolls shall be trenched in below grade by two (2) to four (4) inches, and backfilled to
ensure run-off will not scour under the BMP.
• Wattles shall be secured every four (4) feet along the length of the roll with a stake.
The stakes shall be sunk at least six (6) inches below grade. The ends of the wattle
should also be staked.
• All wattles shall be tied at the ends, and adequately overlapped at their joints when
placed side-by-side.
• Suggested spacing of wattles for use of permanent slopes is as follows:
o Slope inclination of 4:1 (H:V) or flatter: Wattles should be placed at a maximum
interval of 20 feet.
o Slope inclination between 4:1 and 2:1: Wattles should be placed at a maximum
interval of 15 feet. (A closer spacing is more effective).
o Slope inclination of 2:1 or greater: Wattles should be placed at a maximum
interval of 10 feet. (A closer spacing is more effective).
• The ends of the wattles should be turned up slope to prevent run-off from going around
the ends of the roll.
Inspection and Maintenance:
• In the construction phase, all BMPs will be inspected every 14 days or within 24 hours of
a significant storm event. In the interim phase, BMPs will be inspected every 30 days.
• Verify the wattles remain intact and secure.
• Ensure run-off is not undermining or scouring under the BMP.
• Wattles cannot be flattened by equipment traffic, materials, or overwhelmed with
sediment accumulation.
• Sediment should be removed when sediment accumulation reaches one-half the
designated sediment storage depth.
• Damaged wattles require repairs, replacement or removal.
o Split, torn, unraveling, flattened, saturated or slumping rolls require
maintenance.
• Once a wattle is no longer necessary, it should be removed.
o All collected sediment should be disposed of, and any holes, trenches or ground
disturbances should be repaired to blend with the adjacent ground.
Sediment Trap - Preferred
.y,;'0" op,
•
�.46,
Table 1:
Acres of
Drainage
Storage Volume of Sediment Trap*
Surface Area of
Sediment Trap
Spillway
Length (feet)
Sediment Storage
Dewatering Storage
1
700 ft3/acre
1300 ft3/acre
5300 ft2
4
2
1400 ft3/acre
2600 ft3/acre
10600 ft2
6
3
2100 ft3/acre
3900 ft3/acre
15900 ft2
8
4
2800 ft3/acre
5200 ft3/acre
21200 ft2
10
5
3500 ft3/acre
6500 ft3/acre
26500 ft2
12
*Assuming minimum storage volume equals 2000 ft3 per acre of contributing drainage area
Description and Purpose:
Sediment traps can be used during site development to manage water quality as well as
quantity for drainage areas consisting of 5 acres or less. The purpose of the trap is to impound
diverted water, usually from diversion ditches, allowing heavy particles to settle out. It can also
be used as temporary storage of run-on and run-off. Ideally, sediment traps are during earth
disturbance activities and are located down gradient of activity. Sediment traps vary in shape
but consist of an impoundment area to collect stormwater and rock spillway to decant clear
water if desired.
Installation:
Greater surface area increases the trapping efficiently of a sediment trap. Sediment traps can
vary in size and shape depending on site conditions and area of disturbance. A minimum ratio
of 2L: 1W should be utilized if conditions allow. Embankment width should be 5 feet if
allowable by site conditions. Soils forming the embankments and the interior of the sediment
trap should be compacted to limit infiltration and erosion of the trap.
Sediment Traps should discharge to stable, erosion resistant areas and not create offsite
stormwater issues. A spillway will be constructed on the outflow side of the sediment trap
and armored. Spillway length depends on the amount of acres being disturbed and is
described in table 1. The spillway should utilize geotextile erosion control material over
compacted backfill with angular rock armoring.
Maintenance:
Access to perform maintenance on the sediment trap should be provided. Sediment from the
trap should be removed when the wet storage volume has been reduced by one half. A stake
could be utilized to mark the sediment height at which maintenance should be performed.
Maintenance should focus on the function of the feature. Check embankments, spillways, and
outlets for erosion, piping and settlement. Clogged or damaged spillways and/or embankments
should be restored to design specifications.
Surface Roughening - Preferred
Purpose and Description:
Surface roughening is a temporary erosion control practice often used in conjunction with
grading. Soil roughening reduces runoff velocity, increases infiltration, reduces erosion, traps
sediment, and prepares the soil for seeding or planting by providing moisture and by giving
seed an opportunity to hold and germinate. There are several types of surface roughening
methods that are described below.
Tracking / Track Walking
Tracking is a cost effective method that works best in sandy soils and can coincide with grading
or contouring activities. Tracking utilizes the equipment's tracks to form pockets which
increases surface area to promote water absorption and reduces erosion. These conditions
promote seed germination and vegetative growth and tracking is often used before seeding
takes place. Machinery should create indentations in the ground that are perpendicular to the
flow or slope, or along the contours of the grade, resulting in the machinery operating up and
down the slope and not across.
Pocking:
Pocking utilizes hand tools or a back hoe to create depressions in the ground at a minimum
depth of 4 inches. The pockets should be spaced so that each row is alternating with the one
down gradient, similar to a checkerboard pattern. The pattern should be positioned in such a
way that water leaving one pocket would collect into the pocket in the down gradient row
which reduces water velocity and erosion.
Surface Roughening:
Surface Roughening utilizes other machinery or attachment such as disks, tillers, spring
harrows, or teeth on a front-end loader to create grooves or uneven surfaces that follow along
the contours of the grade. The degree or aggressiveness of the technique implemented should
correspond to the steepness of the grade and soil type. This method is ideal for grades less
than 3:1 where the ground could be used after reclamation or mowed.
Maintenance:
Roughened areas should be inspected for rilling or erosion after significant storm or runoff
events. Surface roughening is not recommended for rocky slopes or in soils that can be
excessively compacted. Heavy storm events can wash out roughened or pocketed surfaces and
additional roughening and seeding could be necessary.
Berms - Preferred
Description and Purpose:
Earthen berms are used to intercept and divert runoff to a desired location such as a sediment
trap or a slope drain. Berms can be used in conjunction with a diversion channel to convey
runoff or run-on. Berms are commonly used along the top edges of cuts and fills to protect the
embankment. Berms also contain and divert water from disturbed areas in order to control
storm water and sediment leaving the site. Berms to intercept and divert runoff should not be
used where the drainage area exceeds 10 acres.
Installation:
Berms and diversions should be constructed of compacted soil and have uninterrupted positive
grade to a stabilized area, such as a sediment trap. Wheel rolling, tracking, and bucket tamping
are not adequate for compacting. The minimum height of a berm depends on expected water
volume, the height is typically between 6-24 inches. The diversion channel should be
constructed to allow 6 inches of freeboard and be clear of debris that would compromise the
function of the structure.
Maintenance:
Inspection and maintenance should be provided periodically and after rain or snowfall events
that cause significant runoff. Berms should be inspected for breaches, erosion, tunneling or by-
passing the structure. Sediment buildup against the berm or in the channel should be removed
if the sediment is impacting the function of the structure. Riprap or turf reinforcement can be
used to limit erosion in the diversion channels if water velocities are causing erosion.
CWPaC'i0 jARTN BERM
Temporary Slope Drains
Photo View
Description and Purpose:
A temporary slope drain is a flexible conduit or pipe that drains water down a slope, preventing
erosion and surface runoff on or below the slope face. Slope drains generally prevent rill and
gully formation, and effectively transport stormwater from a pad or other disturbance area.
Most drains consist of plastic or another heavy-duty material manufactured for the purpose.
The slope drain BMP generally remains in place until other permanent drainage structures are
installed, or the slopes are permanently stabilized.
Installation:
• Slope drains should be utilized for temporary use unless the structure is properly built to
be utilized on a permanent basis.
• The drainage conduit should be sized as needed to convey stormwater flows.
• The conduit should be securely fastened together and have water tight fittings. The
conduit should also be securely anchored to the slope face or buried as necessary.
• The slope should be three (3) percent or steeper.
• Stormwater should be directed into the conduit using an end section or a berm. The top
of the berm over the conduit should be at least six (6) inches higher than the top of the
conduit to ensure no stormwater moves onto the slope face.
• The conduit should continue beyond the toe of the slope, and drain onto an erosion
control surface, such as a riprap scour pad.
• The slope drain will be capped or plugged to allow manual draining only.
Inspection and Maintenance:
• In the construction phase, all BMPs will be inspected every 14 days or within 24 hours of
a significant storm event. In the interim phase, BMPs will be inspected every 30 days.
• Large debris, trash and leaves should be removed from the conduit inlets during
inspections.
• Inspections should determine if the conduit capacity has been exceeded or if any
blockages have occurred.
• Make certain stormwater is not undermining or scouring around the flared inlet.
• Ensure the end section or berm directing the runoff into the conduit is functioning, and
no stormwater is moving onto the slope face.
• All repairs should be made as soon as possible.
• Replace or repair any rock or erosion control material placed at the slope drain outlet.
Ensure stormwater is being directed to an intended location or drainage upon leaving
the slope drain.
• Reroute any construction equipment around the slope drain to avoid damage.
• Temporary slope drains should be removed as soon as permanent structures can be
installed, or the slope face has reached final stabilization.
Culvert Inlet and Outlet - Preferred
Purpose and Description:
Culvert pipe is typically constructed of concrete, steel, aluminum or plastic and are used to
move water under a roadway or direct stream flow under a road or construction area. Cross -
drains are utilized to transport upland runoff, which accumulates in ditches, to the down -
gradient side of the road to reduce road erosion. Pipe diameter and inlet/outlet protection
depends on the volume of water passing through the culvert and should be evaluated on a
case-by-case basis.
Installation:
If possible, culverts should be designed for a minimum 25 -year frequency storm event and be
covered by enough material as to not protrude above the access road. Cover material above
metal or plastic culverts should be at least one foot for every one inch of pipe (e.g., 18' culvert =
18" of cover). The outlet should be able to allow debris to pass through. Whenever possible,
align the center of the culvert with the center of the existing channel, following the grade of the
channel. If excavation of the channel is necessary, minimal disturbance of the channel at the
culvert outlet should be the primary consideration. Compaction of fill around the inlet and
outlet of the culvert is recommended to reduce erosion and settling. Inlet and outlets should
have armoring above the culvert and both sides to reduce erosion and sediment transport from
the road surface.
A single large pipe is preferable to multiple smaller culverts to minimize plugging, however
multiple smaller culverts can be considered to maintain the natural flow spread across the
channel. Culvert outflows should discharge at natural ground level and not cause damming or
pooling or significantly increase the velocity of the water. Spacing of culverts is dependent on
the road gradient, soil types and runoff characteristics and should be approached on a case-by-
case basis.
Culvert inlet and outlet protection can be accomplished with a base left open to aid in
maintenance with rock armoring around the base. The preferred depth is 18 inches to 36 inches
of coverage. Rock armoring should be installed to ensure that the bank does not back cut, scour
or erode. The same method can be used at the culvert inflow to reduce water velocity. The inlet
should have rock armoring placed around the culvert in a horse shoe, protecting the top and
sides. A sediment trap will be installed at the inlet and outlet to allow water to pool, slowing
water velocity and allow sediment to drop out prior to entering the culvert. The sediment trap
will not have armoring in the bottom, this will allow for easy maintenance. Riprap should be
selected based on the expected flow and extend several feet from either end of the culvert
pipe. Riprap should also be placed around the pipe at either end to limit erosion from surface
runoff.
Maintenance:
Maintenance of culverts includes ensuring good flow through the culvert, checking for signs of
corrosion or joint separation and sediment buildup. The inlet and outlet should be inspected
for signs of scour, degradation, debris, flow diversion and erosion around the culvert. Sediment
build-up around the inlet and outlet should be removed if the build-up is negatively impacting
the system (increased water velocities, pooling, back flow, etc.). Riprap should be replaced or
reused once sediment has been removed.
Diversion Ditch - Preferred
Description and Purpose:
A diversion ditch is an excavated channel or swale that can be cut to capture run-on, divert
flows around a disturbance area, and transport surface water to a desired location.
Additionally, ditches can be used to intercept and divert runoff towards a stabilized
watercourse or channel, or intercept runoff from hardened surfaces such as well pads or roads
to help intercept sheet flows, and convey concentrated flows. Ditches may be constructed in
combination with an earthen berm to increase the capacity of the ditch. Other soil stabilization
structures may also be integrated into the diversion ditch to assist in sediment control and
capture, such as check dams or erosion control blankets which also prevent scour and erosion
in newly graded swales and ditches. A diversion ditch may be utilized as a temporary or
permanent BMP structure, and can be transitioned into a roadside ditch or a drainage swale.
Installation:
• Diversion ditches should be constructed with rounded or flat bottoms to avoid flow
concentration and scouring at the bottom of the channel.
• During installation, positive drainage should be verified to ensure proper function.
• If the diversion ditch is greater than thirty (30) feet, the outlet of the ditch will be
constructed with erosion protection (riprap) to ensure outlet stability and to prevent
erosive potential from concentrated flows. Riprap aprons are best suited for temporary
use during construction.
• Diversion ditches should not include loose fill. A well constructed ditch will convey flows
within the feature without erosion.
Inspection and Maintenance:
• In the construction phase, all BMPs will be inspected every 14 days or within 24 hours of
a significant storm event. In the interim phase, BMPs will be inspected every 30 days.
• Access to perform maintenance on the diversion ditch should be provided.
• The ditch should be inspected for scouring or down cutting at the bottom of the
channel, and repairs should be completed as soon as possible to prevent further scour
and sediment loss from the BMP. Rock check dams, riprap, and erosion control
materials can be installed to reduce flow velocities, capture sediment and prevent
scour.
• If the outlet is armored with riprap, monitor the placement of the rocks to ensure they
are preventing erosion, and ensure the rock size installed is effective for the runoff
volume. If riprap has been lost, it should be replaced.
• All linings and soil stabilizers need to be inspected for damage. Periodic re -definition of
the ditch may be required to restore function and ensure effective drainage. Check
embankments, spillways, and outlets for erosion, piping and settlement. Clogged or
damaged spillways and/or embankments should be restored to design specifications.
• Temporary conveyances shall be completely removed as soon as the surrounding
drainage area has been stabilized, or at the completion of construction.
Armored Rundown
Description and Purpose:
Armored rundowns are excavated channels or swales that are lined with grass, riprap or
another protective material. Armored rundowns are intended to convey concentrated
stormwater runoff down a gradient to a stable outlet while preventing erosion and sediment
transport on or at the bottom of the slope. Riprap-lined channels also help to diffuse
stormwater flows, and help prevent scouring in the channel. An armored rundown can be used
as a temporary BMP during construction operations until final stabilization is installed, or
utilized as a permanent BMP.
Installation:
• Armored rundown channels may exhibit V-shaped, parabolic or trapezoidal cross-
sections. Rundowns will be lined with a protective material, fiber liner, or matting to
prevent stormwater runoff from scouring under the BMP.
• For grass -lined channels, a dense cover of hardy, erosion -resistant grass should be
established as soon as possible following the installation of the rundown channel.
Utilizing straw mulch, a protective liner or another tackifier will assist in the vegetation
establishment. Side slopes should not exceed 3:1 in order to facilitate vegetation
establishment and slope stabilization.
• Riprap-lined channels are generally installed on steeper slopes than grass -lined
channels. Before installing riprap, the channels require a filter fabric or protective liner
to prevent scour under the riprap. The volume of stormwater flows will determine the
best rock size for the rundown. Larger rock shall be used for larger stormwater volumes.
Generally, side slopes should not exceed 2:1, and the riprap thickness should be 1.5
times the maximum stone diameter. The riprap should be installed in a dense, uniform,
well -graded accumulation.
Inspection and Maintenance:
• In the construction phase, all BMPs will be inspected every 14 days or within 24 hours of
a significant storm event. In the interim phase, BMPs will be inspected every 30 days.
• Access to perform maintenance on the armored rundown should be provided. The
rundown should be inspected for scouring or down cutting under the protective
material, and repairs should be completed as soon as possible to prevent further scour
and sediment loss from under the BMP.
• Maintenance should focus on the function of the feature. If the rundown is lined with
riprap, monitor the placement of the rocks to ensure they are functioning, and ensure
the rock size installed is effective for the runoff volume. Any lost riprap shall be
replaced.
• Check embankments, spillways, and outlets for erosion, piping and settlement. Clogged
or damaged spillways and/or embankments should be restored to design specifications.
• Temporary conveyances shall be completely removed as soon as the surrounding
drainage area has been stabilized, or at the completion of construction.
Brush Barriers
Description and Purpose:
Brush barriers are composed of brush, tree branches, or root mats usually obtained during the
site clearing and grubbing phase. These barriers are usually used for sediment trapping,
reducing offsite sediment transport, and velocity reduction and are usually located along the
site perimeter or in areas where sheet flow occurs. Brush barriers should be used a
supplemental BMP in conjunction with a structural BMP such as a straw bale barrier, wattles
or a diversion ditch or berm.
Installation:
Barriers can be installed approximately 5 to 10 feet from the toe of the slope along the
perimeter of the site allowing enough room for the structural BMP placement. Brush barriers
should be installed along the contour or perpendicular to the flow direction. The height of the
barrier should be tall enough allow for settling of material and utilize smaller brush to limit void
spaces and conduits for water to compromise the structure.
Maintenance:
Brush barriers should be inspected regularly or after a significant rainfall event. Channels or
void spaces caused by erosion should be repaired to increase the effectiveness of the structure.
Accumulated sediment should be removed if the height of the sediment of the uphill side
reaches one half the height of the barrier. Once the site has reached final stabilization, the
barrier can be spread out or disposed of properly.
Rock Check Dams
Description and Purpose:
Rock check dams are temporary dam structures placed across drainages or channels and are
used to slow stormwater velocities and reduce erosive potentials. Check dams are constructed
using gravel, rock, sandbags, straw bales or other reusable materials. When properly installed,
check dams reduce the effective slope of a channel, and reduce the velocity of the flowing
water. Check dams can also be used to catch sediment from the channel as stormwater moves
through the structure.
One -rock check dams are temporary dam structures that are one rock tall by several rocks long
(illustrated in the photo). One -rock check dams also slow the velocities of passing stormwater,
provide suitable areas for vegetation establishment, and reduce erosion potentials. The dams
provide sediment retention, and bank stabilization for small drainages or channels.
Installation:
• Dams should be installed with careful placement of the construction material, as to not
allow material to move down the channel.
• The center of the dam should be at a lower elevation than the edges to allow water to
flow away from the banks and over the center of the dam, preventing erosion at the
edges. The typical rock size is one to six inches. The larger size is preferred.
• The dam should be keyed into the ditch for additional stability, and to prevent water
from scouring under the dam.
• Check dams should be utilized in a series and spaced as necessary to reduce flow
velocities down a channel.
• The maximum spacing between dams should be such that the toe of the upstream dam
is at the same elevation as the release point of the downstream dam.(*see illustration)
• Straw bales should be placed with the ends of adjacent bales tightly abutting one
another. Please note that straw bales are not the preferred material.
o All bales should be certified weed free.
o Straw bales should not be stacked when being utilized as check dams.
o Straw bindings should be oriented around the sides rather than the tops and
bottom of the bales.
o Straw bales should be trenched into the channel, staked and chinked, and
backfilled against the barrier.
Inspection and Maintenance:
*
• In the construction phase, all BMPs will be inspected every 14 days or within 24 hours of
a significant storm event. In the interim phase, BMPs will be inspected every 30 days.
• Large debris, trash and leaves should be removed from the dams during inspections.
• Ensure the center of the dam is always lower than the edges.
• Ensure run-off is not scouring under or around the BMP.
• If rocks or material need replaced, repairs should be made immediately.
• The dam should be cleaned of sediment if accumulated sediment has reached a height
of approximately one-half the original height of the dam.
• Check dams may or may not need to be removed depending on the material of
construction and site specific conditions. Dams shall only be removed after the
contributing drainage area has been completely stabilized.
Check Dam
DRIVE OVER BERMS
Description and Purpose:
Drive over berms should be implemented as applicable at a pad entrance to mitigate
stormwater runon and runoff. The purpose is to contain stormwater and other possible
contaminants that may be on the location and allowing as little runoff as possible from entering
and damaging the access road.
Installation:
Drive over berms should be installed such that both ends tie into the pad perimeter berm.
Berms should allow for traffic to move across the barrier easily while still keeping the
containment necessary for the location. Berm should be properly compacted. The height and
width should blend in with the pad perimeter berm.
Inspection and Maintenance:
In construction phase BMPs will be inspected every 14 days or within 24 hours of a significant
storm event. In interim phase BMPs will be inspected every 30 days. Inspect berm for washouts,
and remove excess debris and sediment as applicable.
ROAD SIDE BAR DITCH
Description and Purpose:
Road side bar ditches should be implemented in areas of road disturbances. The purpose of
road side bar ditches is to help access roads stay accessible. Road side bar ditches help create a
natural stormwater pattern that should lead to a proper drainage. Properly controlling the flow
of stormwater will help keep the road from washing out and help keep stagnant areas of water
off of the roadways.
Installation:
Road side bar ditches should be installed accordingly with the existing topography and
desirable natural surroundings to avoid extreme grade modifications. Bar ditch should be
adequately built to help contain flow of water to the discharge point. Bar ditch should be
compacted to help mitigate erosion and sediment loss. Road should be sloped to help provide
good drainage of water from the surface of the road into the bar ditch.
Inspection and Maintenance:
In construction phase BMPs will be inspected every 14 days or within 24 hours of a significant
storm event. In interim phase BMPs will be inspected every 30 days. Maintenance should focus
on the function of the feature. Road side bar ditches should be maintained and kept established
to keep water from being stagnant. Check for unincorporated drainages and fill and redefine
bar ditch accordingly. Maintain road sloping and repair any problems as soon as possible.
ROAD SIDE TURNOUT
.. l
Description and Purpose:
Road Side Turnouts are an extension of ditches that redirect water into a proper discharge
points before it can cause erosion. Turnouts return stormwater runoff as sheet flow to natural
drainage areas. Turnouts will reduce the speed of runoff, allowing soil particles to settle out
instead of being transported to a stream, river, or lake. Surrounding vegetation can absorb
water that has been filtered.
Installation:
Road Side Turnouts can be constructed on paved, gravel, or dirt roads as applicable. The
turnout can be the width of a backhoe bucket, a bulldozer blade, or a hand-held shovel
depending on the location. Outlet should be armored with rock to help settle any soil particles
and control erosion. Use 4"-6" crushed, angular stone for the outlet. Turnout should intersect
the ditch at the same depth, and slope down and away from the road. The intervals between
turnouts should be constructed as often as possible to allow smaller volumes of water to be
dispersed at a time.
Inspection and Maintenance:
In construction phase BMPs will be inspected every 14 days or within 24 hours of a significant
storm event. In interim phase BMPs will be inspected every 30 days. Maintenance is essential to
keep the turnout functional and ensure excessive sedimentation from storm events do not fill
the structure. Check turnouts during and after large storm events for erosion or accumulation
of debris. Remove accumulated sediment as applicable to keeping it functional. Check that the
water flow is evenly dispersed into the vegetation and no form of erosion channels are present.
Seeding
Description and Purpose:
Seeding is utilized to assist in the establishment of vegetative cover on disturbed areas.
Vegetative cover is considered the most effective deterrent for surface erosion. Vegetative
cover stabilizes the soil, reduces the amount of surface runoff during storm events by
promoting infiltration, and assists in filtering out sediment from stormwater runoff.
Temporary seeding should be utilized when the soil surface is disturbed and will remain inactive
for an extended period (generally 30 days or longer). Temporary seeding is utilized for areas
that will be in dormancy, or may not be ready for final stabilization. These areas include: top
soil storage piles, temporary berms, or cut and fill slopes. Interim seeding is utilized for well
pads that have completed the construction phase, and are reducing the effective disturbance
size of the location to areas needed for production operations or for subsequent drilling
operations only. Final seeding is implemented to permanently stabilize the entirety of the
disturbance area after all construction and production operations are complete.
There are a variety of methods than can be used to achieve the temporary, interim and
permanent vegetative cover required. These seeding methods include:
• Drill/Disc — preferred method;
• Broadcast;
• Hydraulic (with or without the addition of a tackifier); and
• Hand (where applicable due to terrain and accessible distance).
Hydraulic erosion control consists of applying a mixture of shredded wood, coconut and wood
fiber, or a hydraulic matrix and a stabilizing emulsion or tackifier with hydroseeding equipment.
Hydraulic erosion control temporarily protects exposed soils from erosion by raindrop impact
or wind. Hydromulch quickly bonds to the soil, and can provide slope protection and essential
seed -to -soil contact necessary for successful and rapid germination leading to desired
vegetative establishment and cover.
Installation:
• If hand broadcasting the seed — the seed should be harrowed into the soil to promote
proper seed to soil contact.
• Temporary seeding should include annual, cereal crops such as oats, barley or sterile
hybrids to establish vegetative cover and suitable grass species on areas not currently
being utilized for construction or project work. Temporary seeding should occur as soon
as possible following construction to promote soil stabilization and to reduce runoff and
erosion potentials.
• Interim/permanent seeding will utilize the seed mix designated for permanent seeding
and vegetative cover. Land on a well site that is not being used for production but has
been disturbed should be re-contoured, and applied with topsoil prior to the seeding
and re -vegetation process.
• Final/permanent seeding will be installed upon completion of all construction and
operation activities in order to reach final stabilization for the site.
• The permanent seed mix, rate, application method and supplemental materials will be
determined by appropriated personnel or the BLM/Landowner as appropriate for the
land ownership.
• Permanent seeding is most effective when the seed is applied in the early fall, when the
soil is warm, temperatures are moderate, weed competition is minimal, and growing
conditions are optimal. Re -contouring, surface roughening, and topsoil replacement
shall be completed prior to permanent seeding.
• Drill/Disc seeding shall be installed along the contour of a slope's profile to prevent rill
formation and runoff concentration.
• Mulch is often applied immediately after the seeding process to protect the seeding
area from precipitation or wind erosion. Mulch also increases infiltration and reduces
runoff. Mulching with weed -free straw, hay, shredded wood mulch or other matrices
should be evenly applied to disturbed soils, and secured by crimping, using tackifiers, or
other measures.
Inspection and Maintenance:
• In the construction phase, all BMPs will be inspected every 14 days or within 24 hours of
a significant storm event. In the interim phase, BMPs will be inspected every 30 days.
• To maintain a viable seed bed, it is important to minimize any vehicle traffic or other
forms of compaction in areas that are seeded.
• Any areas that have experienced erosive activity or surface disturbance shall be re-
contoured and seeded as soon as reasonably possible.
• Areas that have been seeded but are not experiencing reasonable vegetation
establishment after one growing season should be re -seeded, and considered for a soil
amendment such as a form of mulch, fertilizer or other soil amendment.
Straw Bale Barrier
Description and Purpose:
A straw bale barrier is a series of straw bales placed on a level contour to intercept sheet flows.
Straw bale barriers pond sheet- flow runoff, allowing sediment to settle out. A straw bale barrier
consists of a row of straw bales placed on a level contour. When appropriately placed, a straw
bale barrier intercepts and slows sheet flow runoff, causing temporary ponding. The temporary
ponding provides quiescent conditions allowing sediment to settle. Straw bale barriers also
interrupt the slope length and thereby reduce erosion by reducing the tendency of sheet flows
to concentrate into rivulets, which erode rills, and ultimately gullies, into disturbed, sloped soils.
Installation:
Bales should be placed in a single row on a level contour with ends tightly abutting one another.
All bales should be installed on their sides so that twine or binding runs around side of bale rather
than on the top and bottom. Bales should be trenched in and staked. See illustration below.
a. Hay Bales (or bundles of grass)
Tamped
soil
Leave no gaps
between bales
Staked and entrenched
straw bale. (Use two
stakes per bale.)
ttlikklet 1111 f
41.11$111104111)0
44141%14-01
i
f111
'er,
° ° 0
Bales key.
(buried )
10 cm dee
into soil.
Note: Problems can develop from water running between and under
hay bales. Install them carefully. Long-term structures must be periodi-
cally cleaned and maintained.
Materials
• Straw Bale Size: Each straw bale should be a minimum of 14 in. wide, 18 in. in height, 36
in. in length and should have a minimum mass of 50 lbs. The straw bale should be
composed entirely of vegetative matter, except for the binding material.
• Bale Bindings: Bales should be bound by steel wire, nylon or polypropylene string placed
horizontally. Jute and cotton binding should not be used. Baling wire should be a
minimum diameter of 14 -gauge. Nylon or polypropylene string should be approximately
12 -gauge in diameter with a breaking strength of 80 lbs force.
• Stakes: Wood stakes should be commercial quality lumber of the size and shape shown
on the plans. Each stake should be free from decay, splits or cracks longer than the
thickness of the stake, or other defects that would weaken the stakes and cause the
stakes to be structurally unsuitable. Steel bar reinforcement should be equal to a #4
designation or greater. End protection should be provided for any exposed bar
reinforcement.
Inspection and Maintenance
• In construction phase BMPs will be inspected every 14 days or within 24 hours of a
significant storm event. In interim phase BMPs will be inspected every 30 days.
• Inspect straw bale barriers for sediment accumulations and remove sediment when depth
reaches one-third the barrier height.
• Replace or repair damage bales and washouts as needed
• Remove straw bales when no longer needed. Remove sediment accumulation, and clean,
re -grade, and stabilized the area.
Armored Drainage
Description and Purpose:
Armored rundowns are excavated channels or swales that are lined with grass, riprap or
another protective material. Armored rundowns are intended to convey concentrated
stormwater runoff down a gradient to a stable outlet while preventing erosion and sediment
transport on or at the bottom of the slope. Riprap-lined channels also help to diffuse
stormwater flows, and help prevent scouring in the channel. An armored rundown can be used
as a temporary BMP during construction operations until final stabilization is installed, or
utilized as a permanent BMP. For the Tompkins Lateral, drainages that terminate into a cement
box culvert inlet will be armored with existing native rocks.
Installation:
• Armoring of drainages will be necessary to ensure pipeline intergrity and ROW stability.
It is advised that all drainages be lined with a protective material, fiber liner, or matting
to prevent stormwater runoff from scouring under the rocks and riprap.
• Slope surface should be free of rocks, sticks and debris prior to the installation of the
geotextile fabric. Fabric should be trenched in at the top of the slope and secured with
pins or staples. Fabric should be stretched out as flat as possible with an overlap of 12-18
inches. Overlaps should be secured with staples every 6 inches. Staple placment should
be according to manufacturers specification
• Before installing riprap, the channels require a filter fabric or protective liner to prevent
scour under the riprap. The volume of stormwater flows will determine the best rock size
for the rundown. Larger rock shall be used for larger stormwater volumes. Native rock
from the area should be used when possible. Native rock removed from the drainage
should be stockpiled and reused to armor the drainage once the pipeline installation is
complete. Side banks will be dry stacked using larger boulders at the bottom of the dry
stack to secure the side walls of the drainage.
• Upon completion of rock should slow water velocity while directing flow into culvert
inlet.
Inspection and Maintenance:
• All BMPs will be inspected every 14 days or within 24 hours of a significant storm event.
In the interim phase, BMPs will be inspected every 30 days.
• Access to perform maintenance on the armored rundown should be provided. The
rundown should be inspected for scouring or down cutting under the protective
material, and repairs should be completed as soon as possible to prevent further scour
and sediment loss from under the BMP.
• Maintenance should focus on the function of the feature. If the rundown is lined with
riprap, monitor the placement of the rocks to ensure they are functioning, and ensure
the rock size installed is effective for the runoff volume. Any lost riprap shall be
replaced.
• Check embankments, spillways, and outlets for erosion, piping and settlement. Clogged
or damaged spillways and/or embankments should be restored to design specifications.
• Temporary conveyances shall be completely removed as soon as the surrounding
drainage area has been stabilized, or at the completion of construction.
Typical Installation Detail
Berm
150 mm x 150 mm
anchor trench
Mats/blankets should
be installed vertically
downslope.
AV -
if
/\\/\
50 mm o �I II ��/\� /
75 m averlao. /� /`/�.'
%j`/%
\/\/
Filter
ISOMETRIC VIEW �\r\ \\ : \
TYP CAL SLOP- �� ��\-;\
SOIL STrABLIZATIGN TS WET SLOPE LINING
_ Non -woven
geotextile filter
fabric under
typical treatment.
NTS
NOTES:
1. Slope surface shall be free of rocks, clods, sticks
and grass. Mats/blankets shall have good soil contact.
2. Lay blankets loosely and stake or staple to maintain
direct contact with the soil. Do not stretch.
3. Install per manufacturer's recommendations
D34
Typical Installation Detail
INITIAL CHANNEL ANCHOR TRENCH
NTS
Stake at 1 m to
1.5 m intervals
4
TERMINAL SLOPE AND CHANNEL
ANCHOR TRENCH
NTS
150 mm
INTERMITTENT CHECK SLOT
NTS
mm
\tel\f\ /\r
Check slot at 8 m intervals
ISOMETRIC VIEW
NTS 100 mm x 100 mm
anchor shoe
100 mm
100 mm
LONGITUDINAL ANCHOR TRENCH
NTS
NOTES:
1. Check slots to be constructed per manufacturers specifications.
2. Staking or stapling layout per manufacturers specifications.
3. Install per manufacturer's recommendations
D33
Bonded synthetic fibers consist of a three-dimensional geomatrix nylon (or other synthetic)
matting. Typically it has more than 90% open area, which facilitates root growth. Its tough root -
reinforcing system anchors vegetation and protects against hydraulic lift and shear forces created
by high volume discharges. It can be installed over prepared soil, followed by seeding into the
mat. Once vegetated, it becomes an invisible composite system of soil, roots, and geomatrix. The
material is furnished in rolled strips that shall be secured with U-shaped staples or stakes in
accordance with manufacturers' recommendations.
Combination synthetic and biodegradable RECPs consist of biodegradable fibers, such as wood
fiber or coconut fiber, with a heavy polypropylene net stitched to the top and a high-strength
continuous filament geomatrix or net stitched to the bottom. The material is designed to enhance
revegetation. The material is furnished in rolled strips, which shall be secured with U-shaped
staples or stakes in accordance with manufacturers' recommendations.
Inspection and Maintenance
• In construction phase BMPs will be inspected every 14 days or within 24 hours of a
significant storm event. In interim phase BMPs will be inspected every 30 days.
• Repair any unnecessary gaps or holes in the blankets.
• Inspect to make sure that there is uniform contact with the soil.
D32
thickness. The coconut fiber shall be evenly distributed over the entire area of the blanket.
Coconut fiber blanket shall be furnished in rolled strips with a minimum of 2 m (6.5 ft) wide, a
minimum of 25 m (80 ft) long and a minimum of 0.27-kg/m2 (6.4 lb/ft2). Coconut fiber blankets
shall be secured in place with wire staples. The material is furnished in rolled strips, which shall
be secured to the ground with U-shaped staples or stakes in accordance with manufacturers'
recommendations.
Coconut fiber mesh is a thin permeable membrane made from coconut or corn fiber that is spun
into a yarn and woven into a biodegradable mat. It is designed to be used in conjunction with
vegetation and typically has longevity of several years. The material is supplied in rolled strips,
which shall be secured to the soil with U-shaped staples or stakes in accordance with
manufacturers' recommendations.
Straw coconut fiber blanket shall be machine -produced mats of 70%straw and 30% coconut
fiber with a biodegradable netting top layer and a biodegradable bottom net. The straw and
coconut fiber shall be attached to the netting with biodegradable thread or glue strips. The straw
coconut fiber blanket shall be of consistent thickness. The straw and coconut fiber shall be
evenly distributed over the entire area of the blanket. Straw coconut fiber blanket shall be
furnished in rolled strips a minimum of 2 m (6.5 ft) wide, a minimum of 25 m (80 ft) long and a
minimum of 0.27 kg/m2 (6.4 lb/ft2). Straw coconut fiber blankets shall be secured in place with
wire staples. The material is furnished in rolled strips, which shall be secured to the ground with
U-shaped staples or stakes in accordance with manufacturers' recommendations.
Non -biodegradable RECPs are typically composed of polypropylene, polyethylene, nylon or
other synthetic fibers. In some cases, a combination of biodegradable and synthetic fibers is used
to construct the RECP. Netting used to hold these fibers together is typically non -biodegradable
as well.
Plastic netting is a lightweight biaxially -oriented netting designed for securing loose mulches
like straw to soil surfaces to establish vegetation. The netting is photodegradable. The netting is
supplied in rolled strips, which shall be secured with U-shaped staples or stakes in accordance
with manufacturers' recommendations.
Plastic mesh is an open -weave geotextile that is composed of an extruded synthetic fiber woven
into a mesh with an opening size of less than 0.5 cm (0.2 inch). It is used with revegetation or
may be used to secure loose fiber such as straw to the ground. The material is supplied in rolled
strips, which shall be secured to the soil with U-shaped staples or stakes in accordance with
manufacturers' recommendations.
Synthetic fiber with netting is a mat that is composed of durable synthetic fibers treated to resist
chemicals and ultraviolet light. The mat is a dense, three-dimensional mesh of synthetic
(typically polyolefin) fibers stitched between two polypropylene nets. The mats are designed to
be revegetated and provide a permanent composite system of soil, roots, and geomatrix. The
material is furnished in rolled strips, which shall be secured with U-shaped staples or stakes in
accordance with manufacturers' recommendations.
D31
There are many types of erosion control blankets and mats, and selection of the appropriate type
shall be based on the specific type of application and site conditions. Selection(s) made by the
Contractor must be approved by appropriate and designated administrative personnel.
Erosion Control Blankets/Mats
Biodegradable rolled erosion control products (RECPs) are typically composed of jute fibers,
curled wood fibers, straw, coconut fiber, or a combination of these materials. For an RECP to be
considered 100% biodegradable, the netting, sewing or adhesive system that holds the
biodegradable mulch fibers together must also be biodegradable.
Jute is a natural fiber that is made into a yarn, which is loosely woven into a biodegradable
mesh. It is designed to be used in conjunction with vegetation and has longevity of
approximately one year. The material is supplied in rolled strips, which shall be secured to the
soil with U-shaped staples or stakes in accordance with manufacturers' recommendations.
Excelsior (curled wood fiber) blanket material shall consist of machine produced mats of curled
wood excelsior with 80 percent of the fiber 150 mm (6 inches) or longer. The excelsior blanket
shall be of consistent thickness. The wood fiber shall be evenly distributed over the entire area of
the blanket. The top surface of the blanket shall be covered with a photodegradable extruded
plastic mesh. The blanket shall be smolder resistant without the use of chemical additives and
shall be non-toxic and non -injurious to plant and animal life. Excelsior blanket shall be furnished
in rolled strips, a minimum of 1220 mm (48 inches) wide, and shall have an average weight of
0.5 kg/m2 (12 lb/ft2), ±10 percent, at the time of manufacture. Excelsior blankets shall be
secured in place with wire staples. The material is furnished in rolled strips, which shall be
secured to the ground with U-shaped staples or stakes in accordance with manufacturers'
recommendations.
Straw blanket shall be machine -produced mats of straw with a lightweight biodegradable
netting top layer. The straw shall be attached to the netting with biodegradable thread or glue
strips. The straw blanket shall be of consistent thickness. The straw shall be evenly distributed
over the entire area of the blanket. Straw blanket shall be furnished in rolled strips a minimum of
2 m (6.5 ft) wide, a minimum of 25 m (80 ft) long and a minimum of 0.27 kg/m2 (6.4 lb/ft2).
Straw blankets shall be secured in place with wire staples. The material is furnished in rolled
strips, which shall be secured to with U-shaped staples or stakes in accordance with
manufacturers' recommendations.
Wood fiber blanket is composed of biodegradable fiber mulch with extruded plastic netting
held together with adhesives. The material is designed to enhance revegetation. The material is
furnished in rolled strips, which shall be secured to the ground with U-shaped staples or stakes in
accordance with manufacturers' recommendations.
Coconut fiber blanket shall be machine -produced mats of 100% coconut fiber with
biodegradable netting on the top and bottom. The coconut fiber shall be attached to the netting
with biodegradable thread or glue strips. The coconut fiber blanket shall be of consistent
D30
1" opicisi
af "tyke
Erosion Control Blankets
buy upper apse m rMrki
7,227,
tip.
MUM Tiattrtt
AMA toe err
's'q"_le
a"Irnurn
Ilmltd of r F
aiuIrhegi it i r
over orgies 1
ChEiti Wen
r
r
ri
71.
1' triwim&
d pl plea
3' Id�murn
o�arlsp
Description and Purpose
Made out of environmentally friendly, biodegradable material, erosion control blankets are
installed on disturbed slopes that are requiring stability. They stabilize slopes, and provide for an
increased water holding capacity, which ultimately increased the rate and establishment of
desired vegetative cover.
Implementation
General
Erosion control blankets should installed smoothly on the surface of the soil, loose enough to
allow for vegetation establishment. The blankets are to be in complete contact with the soil to
prevent any tenting. The upslope end of the blanket should be buried in a trench with ideal
dimensions of 6"x6". Where one blanket ends and another begins, there should be 4-6 inches of
overlap. Refer to end of section for generic installation detail.
Design and Layout
Erosion control blankets are typically installed in are that have: steep slopes, generally steeper
than 1:3 (V:H); slopes where the erosion potential is high; slopes and disturbed soils where
mulch must be anchored; disturbed areas where plants are slow to develop; channels with flows
exceeding 1.0 m/s (3.3 ft/s); channels to be vegetated; stockpiles (as
the ground necessary and applicable according to use stipulations); and slopes adjacent to water
bodies of Environmentally Sensitive Areas (ESAs).
D29
liz?Ursa
Appendix E
Ursa Dry Land Pasture Mix
Species
Scientific Name
Variety
lbs/ace PLS (Pure Live Seed)
Western Wheatgrass
Pascopyrum smithii
Rosana or Arriba
5.0
Slender wheatgrass
Elymus trachycaulus ssp. Trachycaulus
Pryor or San Luis
2.5
RS hybrid wheatgrass
Elytrigia repens x Pseudoroegneria spicata
Saltlander
3.0
Pubescent wheatgrass
Thinopyrum intermedium ssp.
Luna
2.5
Tall wheatgrass
Thinopyrum ponticum
Alkar
2.0
Russian wildrye
Psathyrostachysjuncea
Bozoisky
1.5
Bunch
4.7
Total lbs/acre
16.5 lbs/acre
Mix applies' 45 seeds/sq ft. Rate will be doubled for hand broadcasting
Low Elevation Salt -Desert Scrub/Basin Big Sagebrush Seed Mix (BLM)
Common Name
Scientific Name
Variety
Form 1
PLS Ibs/acre* J
Plant Both of the Following (5% Each, 10% Total)
Fourwing Saltbush
Atrplex canescens
VNS
Shrub
2.5
Shadscale
Atriplex confer folia
VN5
Shrub
2.0
and Two of the Following (25% Each, 50% Total)
i
i
Bluebunch Wheatgrass
Agropyron spicatum
Secar
Bunch
4.7
Bottlebrush Squirreltail
Elymus elymoides
State Bridge, Little Sahara, VNS
Bunch
3.4
Thickspike Wheatgrass
Elymus lancolatus ssp. Lanceolatus
Critana, Bannok, Schwendimar
Sod -form
4.2
and One of the Following (20% Total)
Indian Ricegrass
Bunch
3.7
Achnatherum hymenoides
White River, Paloma, Rimrock
Sandberg Bluegrass
Poa sanbergii, Poa secunda
UP Colored, VNS
Bunch
0.6
and One of the Following (10% Total)
Bunch/sod-forming
1.7
Great Basin Wildrye
Leymus cinereus
Alkali Sacaton
Sporobulus airoides
VNS
Bunch
0.2
Inland Saltgrass
Distichlis spicata
VNS (Western US)
Sod -forming
0.5
Salina Wildrye
Leymus salines
VNS
Bunch
1.0
and One of the Following (10% Total)
M
2.4 May be added as hay
mulch with intact mature
seed.
Purple (Red) Three -awn
Aristida purpurea
Galleta
Pleuraphis jamesii
Viva florets
Bunch/Sod-forming
1.6
Needle -and -thread Grass
Hesperostipa comata
VNS
Bunch
2.4 May be added as hay
mulch with intact mature
seed.
Sand Dropseed
Sporobolus cryptandrus
UP Dolores, VNS
Bunch
0.1
Purple Three -awn
Aristida purpurea
VN5 (not parishii or perplexa)
Bunch
0.8
OPTIONAL: Any combination from the following species may be substituted for up to 10% of the above grasses (up to 5% per grass species)
Arrowleaf Balsamroot (forb)
Balsamorhiza sagittata
Annual Sunflower (forb)
Helianthus annuus
Scarlet Globemallow (forb)
Sphaeralcea coccinea
Gardner's Saltbush (forb)
Atriplex gardneri
Sticky -flowered Rabitbrush
Chrysothamnus viscidiflorus
Rocky Mountain Beeplant (forb)
Cleome serrulata
Winterfat (Shrub)
Krascheninnikovia Janata
*Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast o hydroseeded.
**NOTE: The menu -based mixes above meet the minimum reclamation requirements. However, use of different species may be proposed on a case-by-case basis.
If deemed appropriate for a specific site, the BLM may approve a deviation from these menu -based mixes.
Pinyon -Juniper Woodland and/or Mountain/Wyoming Big Sagebrush Shrubland
Common Name
Scientific Name
Variety
Form
PLS Ibs/acre* J
Plant Both of the Following (15% Each, 30% Total)
Bluebunch Wheatgrass
Agropyron spicatum
Secar, P-7, Anatone, Goldar
Bunch
2.8
Bottlebrush Squirreltail
Elymus elymoides
State Bridge, VNS
Bunch
2.0
and Two of the Following (20% Each, 40% Total)
Slender Wheatgrass
Agropyron trachycaulum
Revenue, Pryor
Bunch
3.3
Thickspike Wheatgrass
Elymus la nceolatus
Critana, Bannok, Schwendier
Sod -forming
3.4
Western Wheatgrass
Pascopyron smithii
UP Unnamed, Rosana
Sod -forming
4.8
and Three of the Following (10% Each, 30% Total)
Arizona Fescue
Festuca arizonica
Redondo
Bunch
0.5
Galleta
Pleuraphis jamesii
Riva florets
Bunch/sod-forming
1.7
Great Basin Wildrye
Leymus cinereus
UP Cochetopa
Bunch
2.0
Indian Ricegrass
Achnatherum hymenoides
White River, Paloma, Rimrock
Bunch
1.9
Muttongrass
Poa fenleriana
UP Ruin Canyon, VNS
Bunch
0.3
Needle -and -thread Grass
Hesperospita comata
VNS
Bunch
2.4 May be added as hay
mulch with intact mature
seed.
Purple (Red) Three -awn
Aristida purpurea
VNS (not parishii or perplexa)
Bunch
0.8
Sand Dropseed
Sporobolus cryptandrus
UP Dolores, VNS
Bunch
0.1
Sandberg Bluegrass
Poa sandergii
UP Colorado, VNS
Bunch
0.3
OPTIONAL: Any combination from the following species may be substituted for up to 10% of the above grasses (up to 5% per grass species)
Junegrass
Koeleria macrantha
Annual Sunflower (forb)
Helianthus annuus
Hairy Golden -aster
Heterotheca villosa
Arrowleaf Balsamroot (forb)
Balsamorhiza sagittata
Lobeleaf Groundsel (forb)
Packera multilobata
Dugaldia hoopesii
Dusty Beardtongue (forb)
Penstemon comarrhenus
Mountain Bee -balm
Monardella odoratissima
Fernleaf Biscuitroot (forb)
Lomatium dissectum
Mule -ears (forb)
Wyethia amplexicaulis
Rocky Mountain Penstemon (forb)
Fourwing Saltbush (shrub)
Atriplex canescens
Patterson's Milkvetch (forb)
Astragalus pattersonii
Scarlet Gilia (forb)
Rocky Mountain Beeplant (forb)
Cleome serrulata
Utah Sweetvetch (forb)
Hedysarum boreale
Showy Goldeneye (forb)
Rocky Mountain Penstemon (forb)
Penstemon strictus
Varileaf Phacelia (forb)
Phacelia heterophylla
Silverleaf Phacelia (forb)
Scarlet Gilia (forb)
Ipomopsis aggregata
Western Aster (forb)
Virgulaster ascendens
Western Aster (forb)
Scarlet Globemallow (forb)
Sphaeralcea coccina
Western Yarrow (forb)
Achillea millefolium
White Locoweed (forb)
Sticky -flowered Rabbitbrush (shrub)
Chrysothamnus viscidiflorus
White Sage (forb)
Artemisia ludoviciana
White Sage (forb)
Sulphur Flower (forb)
Eriogonum umbellatum
Winterfat (shrub)
Krascheninnikovia lanata
*Based on 60 pure live seeds (PIS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast a hydroseeded.
**NOTE: The menu -based mixes above meet the minimum reclamation requirements. However, use of different species may be proposed on a case-by-case basis.
If deemed appropriate fora specific site, the BLM may approve a deviation from these menu -based mixes.
Mixed Mountain Shrubland, ncluding Oakbrush
Common Name
Sdentific Name
Variety
Form
PLS Ibs/acre*
Plant Both of the Following (20% Each, 40% Total)
Bluebunch Wheatgrass
Agropyron spicatum
Secar, P-7, Anatone, Goldar
Bunch
3.7
Bottlebrush Squirreltail
Elymus elymoides
State Bridge, VNS
Bunch
2.7
and Two of the Following (15% Each, 30% Total)
Slender Wheatgrass
Agropyron trachycaulum
Revenue, Pryor
Bunch
3.3
Thickspike Wheatgrass
Elymus la nceolatus
Critana, Bannok, Schwendier
Sod -forming
3.4
Western Wheatgrass
Pascopyron smithii
UP Unnamed, Rosana
Sod -forming
4.8
and One of the Following (10% Total)
Big Bluegrass
Poa amnia
Sherman
Bunch
0.3
Canby Bluegrass
Poa canbyi
Canbar
Bunch
0.3
Muttongrass
Poa fendleriana
UP Ruin Canyon, VNS
Bunch
0.3
and One of the Following (10% Total)
Columbia Needlegrass
Elymus la nceolatus
Critana, Bannock, Schwendimar
Sod -forming
1.7
Achnatherum nelsonii
VNS
Bunch
1.7
Green Needlegrass
Nassella viridula
Lodorm, Cucharas
Bunch
1.4
Letterman Needlegrass
Achnatherum lettermanii
VNS
Bunch
1.7
and One of the Following (10% Total)
Great Basin Wildrye
Red Elderberry
Sambucus racemosa
Bunch
2
Leymus cinereus
UP Cochetopa
Indian Ricegrass
Achnatherum hymenoides
Nezpar, Paloma, Rimrock
Bunch
1.9
Junegrass
Koeleria macrantha
UP Sims Mesa, North American origin
Bunch
0.1
OPTIONAL: Any combination from the following species may be substituted for up to 10% of the above grasses (up to 5% per grass species)
Mountain Snowberry
Arrowleaf Balsamroot (forb)
Balsamorhiza sagittata
Orange Sneezeweed (forb)
Dugaldia hoopesii
Dusty Beardtongue (forb)
Penstemon comarrhenus
Rocky Mountain Beeplant (forb)
Cleome serrulata
Lobeleaf Groundsel (forb)
Packera multilobata
Rocky Mountain Penstemon (forb)
Penstemon strictus
Mountain Bee -balm )forb)
Monardella odoratissima
Scarlet Gilia (forb)
Ipomopsis aggregata
Mountain Snowberry (shrub)
Symphoricarpos oreophilus
Showy Goldeneye (forb)
Heliomeris multiflora
Mule -ears (forb)
Wyethia amplexicaulis
Silverleaf Phacelia (forb)
Phacelia hastata
Silvery Lupine (forb)
Lupinus argenteus
Western Aster (forb)
Virgulaster ascendens
Shunkbrush (shrub)
Rhuys aromatic
White Locoweed (forb)
Oxytropis sericea
Sulphur Flower (forb)
Eriogonum umbellatum
White Sage (forb)
Artemisia ludoviciana
Utah Serviceberry (forb)
Amelanchier utahensis
Woods' Rose (shrub)
Rosa woodsii
Utah Sweetvetch (forb)
Hedysarum boreale
Yarrow
Achillea millefolium
*Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast o hydroseeded.
**NOTE: The menu -based mixes above meet the minimum reclamation requirements. However, use of different species may be proposed on a case-by-case basis.
If deemed appropriate fora specific site, the BLM may approve a deviation from these menu -based mixes.
Spruce -Fir Forest, Including Mountain Meadows
Common Name
Scientific Name -
Variety
Form
PLS Ibs/acre*
Plant Both of the Following (20% Each, 40% Total)
Mountain Brome
Bromopsis marginates
UP Cold Springs, Garnet, Bromar
Bunch
5.8
Slender Wheatgrass
Elymus trachycaulus
San Luis
Bunch
3.3
and Two of the Following (15% Each, 30% Total)
Blue Wildrye
Elymus glaucus
WRNF sources, VNF
Bunch
3.6
Idaho Fescue
Festuca idahoensis
Joseph, Nezpurs
Bunch
0.9
Letterman Needlegrass
Achnatherum lettermanii
VNS
Bunch
2.6
and Three of the Following (10% Each, 30% Total)
Big Bluegrass
Poa ampla
Sherman
Bunch
0.3
Nodding Brome
Bromus anomalous
VNS
Bunch
1.8
Rough Bentgrass
Agrostis scabra
VNS
Bunch
0.1
Thickspike Wheatgrass
Elymus la nceolatus
Critana, Bannock, Schwendimar
Sod -forming
1.7
Wheeler Bluegrass
Poa nervosa
VNS
Sod -forming
0.3
OPTIONAL: Any combination from the following species may be substituted for up to 10% of the above grasses (up to 5% per grass species)
Aspen Sunflower
Helianthella quinquenervis
Orange Sneezeweed
Dugaldia hoopesii
Fireweed
Chamerion angustifolium
Red Elderberry
Sambucus racemosa
Golden Banner
Thermopsis montana
Richardson's Geranium
Geranium richardsonii
Heartleaf Arnica
Arnica cordifolia
Showy Daisy
Erigeron speciosus
Mountain Gooseberry
Ribes montigenum
Showy Goldeneye
Heliomeris multiflora
Mountain Snowberry
Symphoricarpos oreophilus
Western Coneflower
Rudbeckia occidentalis
*Based on 60 pure live seeds (PLS) per square foot, drill -seeded. Double this rate (120 PLS per square foot) if broadcast o hydroseeded.
**NOTE: The menu -based mixes above meet the minimum reclamation requirements. However, use of different species may be proposed on a case-by-case basis.
If deemed appropriate fora specific site, the BLM may approve a deviation from these menu -based mixes.
Appendix F - Site Specific Stormwater
Management Plan
Project Name (Site): BMC A Well Pad
Latitude: 39.433603° Longitude: -108.049754°
CDPS Permit Number: COR03K566
Phase: Pre -Construction
Name of Receiving Water: Colorado River
Estimated Distance to Receiving Water: 0.36 miles
Twp, Sec, Range: T -7-S R -96-W, Section 13
Major Erosion Control Facilities/Structures (BMPs) Utilized at Site: Diversion Ditches, v -
pan, culvert inlet/outlets, sediment trap, armored spillways, riprap armoring
Field Name: Battlement Mesa
Inspection Type: 7 Day
Estimate of Total Area of Site: TBD
Estimate of Disturbed Acres of Site: TBD
Soil Types: Arvada loam (6to 20%% slopes), Ildefonso stony loam (25 to 45% slopes)
Permeability: Moderate
Soil Erosion Potential: Moderate
Existing Vegetation Description: Wheat grass, needle and thread, and sagebrush.
Final Stabilization Date: TBD
Estimate of Percent Vegetative Ground Cover: 70% pre -disturbance
Seed Mix for Interim Final Reclamation: Ursa Dryland Pasture/landowner mix
Description of Non -SW Discharge Components (e.g., Springs, Irrigation): None
Phased BMPs
Construction:
Activities that will occur on site are:
• Earth moving activities
o Shrubs/brush will be grubbed and placed on the outer limit of the disturbance
o Topsoil will be pushed from pad location and utilized on earthen berms/fill slopes
o Diversion ditches, wattles and straw bale barriers will be installed around the
perimeter of the location as applicable prior to any dirt moving activities.
• Potential Pollutants associated with this activity are:
o Sanitary sewage associated with portable toilets;
o Trash and debris from construction activities, materials and workers;
o Fuels and lubricants from equipment;
o Sediment from earth moving activities;
o Tracking of sediment on and off site.
Temporary:
Activities that may occur on site are:
• Drilling operations
o Potential Pollutants associated with this activity are:
• Fuels and lubricants from equipment;
• Drilling chemicals;
• Sanitary sewage associated with portable toilets;
• Trash and debris from drilling activities, materials, and workers;
• Well completion fluids;
• Drill cuttings and drilling fluids;
• Produced water; and
• Condensate.
• Completions
o Potential Pollutants associated with this activity are:
• Fuels and lubricants from equipment;
• Sanitary sewage associated with portable toilets;
• Trash and debris from completion activities, construction materials, and
workers;
• Well completion fluids;
• Produced water; and
• Condensate.
• Operations
o Potential Pollutants associated with this activity are:
• Fuels and lubricants from equipment on site;
• Trash and debris from workers on site;
• Anti -freezing agents;
• Produced water; and
• Condensate.
Interim:
Not Applicable.
Final:
Not applicable
Monitoring:
• Inspections will occur every 7 days.
• Inspections will be conducted by a certified person familiar with the site specific control
measures and COAs of the pad.
• Inspections will cover the following:
• Disturbed area;
• All BMPs, temporary and permanent;
• Materials storage areas;
• Down gradient areas;
• Surface water diversions;
• Access road; and
• Pad entrance.
Maintenance Procedures:
Maintenance will include prompt repairs and/or adjustments to any erosion and sediment control
structures that are deteriorating or found to be performing inadequately. BMP conditions and
dates of BMP maintenance will be documented within the stormwater inspection checklists.
Comments:
Revised: 04.07.17
Table 1 - SWMP - REVISION SHEET
Review Date
Representative/Designee Printed
Name
Representative/Designee
Signature
Type of revision (e.g. SWMP text,
site modification, etc.)
SWMP
Amended
(Y/N)
5/7/2013
Nadia Almuti
-
Initial SWMP Drafting
N/A
5/22/2013
Tanner Ridgway
SWMP Amendments
Yes
11/8/2013
Kay Lambert
Amendments to Appedices.
Yes
1/16/2014
Kay Lambert
Amendments to Ap F, Body of
SWMP, Section 4 BMPs, added MR
Yes
7/1/2014
Finn Whiting
Amendments to Ap F,Formatting, &
ap
Yes
11/3/2014
Kay Lambert
J
Amendments to Ap F -Tompkins site
specific plan and map
Yes
12/2/2014
Tanner Ridgway
–�- — --- '
Amendments to Ap F.
Yes
4/22/2015
Kay Lambert
Sections: 1.3, 2.2, 3.0, 5.0, 6.0
Appendice: D, F
Yes
6/8/2015
Kay Lambert
Amendments to: body of text,
Appendix D, E, F and Table
Yes
8/18/2016
Kay Lambert
Amendments to: Appendix F - Site
specific plans
Yes
2/28/17
Kay Lambert
Amendments to Appendix F
Site specific plans
Yes
3/31/17
Kay Lambert
Appendix F updated
Yes