HomeMy WebLinkAbout1.1 Application Part 2Fugitive /)u.vt Control Plan
1.0 INTRODUCTION
This Fugitive Dust Control Plan (plan) describes the general control measures to be taken by
EnCana Oil & Gas (USA) Inc. (EnCana) and its contractors (Contractor) to ensure that dust
suppression techniques are implemented to control fugitive dust sources during construction
operations.
Measures identified in this plan apply to work within the project area defined as the construction
workspace, access roads, temporary use areas, and other areas used during construction of the
project. Additional mitigation measures may be required and will be listed as conditions in the
Colorado Department of Public Health and Environment (CDPHE) Air Pollution Control
Division (APCD) Construction Emission Permit.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating construction on the project.
1.1 Purpose
The purpose of this plan is to identify measures to be taken by EnCana and the Contractor to
control fugitive dust sources during construction operations. This plan will be developed as the
implementing document for relevant mitigation measures contained in the Environmental
Assessment and may be updated prior to construction to ensure that all mitigation measures have
been included.
2.0 REQUIREMENTS FOR DUST CONTROL
2.1 General Requirements
The Contractor is required to provide dust control measures for all areas disturbed by
construction. The measures listed below will be required, as necessary, to control fugitive dust.
Additional measures, if required, will be listed in the CDPHE APCD Construction Emission
Permit.
Dust control will be implemented by the Contractor in areas of active construction within 500
feet of highways, residences, and power transmission rights-of-way (unless waived by the
owner/operator). Dust control is required near major roadways any time dust stays in the air for 5
minutes or reaches 20 feet in height. Dust control is required along the construction workspace
and access roads when dust plumes exceed 20 percent visual opacity. Dust control will also be
implemented on access roads, as determined by EnCana, and as required by the Contractor for
the health and safety of employees.
Dust control will be achieved primarily through application of water or an approved dust
palliative. Application rates for the dust palliative will follow the manufacturer's
recommendations. All dust palliatives used will be biodegradable. Use of salts with water as a
suppressant is limited to magnesium chloride (MC70).
Collbran Pipeline Project
August 2007
Fugili ve Dusl Control flan
Water will not be appropriated from surface waters unless EnCana has appropriate water rights.
Water obtained from wells is permitted, but written approval from the fee -landowner is required
prior to appropriation.
2.2 Control of Unpaved Roads On -Site
During construction, operation, and maintenance of the project, the Contractor will suppress dust
with application of water or other suppressant as needed and will control vehicle speed to 15
miles per hour (mph).
The Contractor shall apply dust suppressants to the construction work area and access roads at
the request of EnCana, the BLM, and county or state representatives.
2.3 Control of Paved Roads
The Contractor will implement the following requirements on paved roads:
• Construction entrances will be installed to prevent tracking mud and soil onto paved roads.
Construction entrances will be constructed as required by county, state, and BLM permits.
• Any soil tracked onto a paved road that extends more than 50 feet from the point of origin
shall be cleaned up by the Contractor within one hour of discovery. Any soil tracked onto a
paved road that extends less than 50 feet shall be cleaned up by the end of the working day.
2.4 Control of Disturbed Areas On -Site
During construction, operation, and maintenance of the project, the Contractor will suppress dust
with application of water or other suppressant as needed, and will control vehicle speed to 15
mph. All areas disturbed by construction will be revegetated in accordance with EnCana's
Reclamation Plan.
The Contractor shall apply dust suppressants to the construction work area and access roads at
the request of EnCana, the BLM, and county or state representatives.
Colll»an Pipeline Pruj
Noxious Weed
Management Plan
Noxious Weed Management Plan
TABLE OF CONTENTS
1.0 Introduction 1
1.1 Purpose 1
2.0 Noxious Weed Management 1
2.1 Identification and Treatment of Problem Areas 1
2.2 Preventative Measures 2
2.3 Monitoring 2
LIST OF ATTACHMENTS
Attachment 1—Noxious Weed Infestations
Attachment 2—Wash Station Typical
Collbran Pipeline Project
August 2007
Noxious Weed Management Plan
1.0 INTRODUCTION
This Noxious Weed Management Plan (plan) identifies measures to be taken by EnCana Oil &
Gas (USA) Inc. (EnCana) and its contractors (Contractor) to minimize the spread and
establishment of noxious weeds and non-native invasive species.
Measures identified in this plan apply to work within the project area defined as the construction
workspace, access roads, temporary use areas, and other areas used during construction of the
project.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating construction on the project.
1.1 Purpose
EnCana is committed to preventing the introduction of noxious weeds during construction and
controlling the expansion of existing noxious weed populations over the life of the project. The
purpose of this plan is to prescribe methods to treat existing weed infestations, prevent
introduction and spread of infestations during construction, and monitor and treat infestations
after construction is complete. This plan will be developed as the implementing document for
relevant mitigation measures contained in the Environmental Assessment and may be updated
prior to construction to ensure that all mitigation measures have been included.
2.0 NOXIOUS WEED MANAGEMENT
2.1 Identification and Treatment of Problem Areas
Field surveys will be conducted prior to construction in 2008 to identify existing noxious weed
infestations along the pipeline construction workspace and temporary use areas. Infestation
locations will be provided in Attachment 1.
Noxious weed infestations will be flagged in the field to alert construction personnel to the
infestation and prevent significant ground disturbance until noxious weed preventative measures
have been implemented.
EnCana will consult with the BLM and local weed control districts to determine pre-treatment
for noxious weed infestations identified during spring surveys. Depending upon the species and
the time of construction, methods of pre-treatment may include:
• Mechanical—mowing or pulling by hand.
• Chemical—application of an approved herbicide by a licensed applicator. Herbicides will be
selected based on recommendations by each local weed control district or BLM and subject
to fee -landowner approval. All herbicides will be applied in accordance with all applicable
laws and regulations on BLM and fee -lands. Prior to the use of herbicides or pesticides on
BLM lands, a Pesticide Use Proposal (PUP) must be submitted to and approved by the BLM.
Collbran Pipeline Project
August 2007
Noxious Weed Management Plan
Potential sites for equipment and vehicle wash stations will be identified in consultation with
local weed control districts and the BLM to minimize the potential for the transport of seeds or
viable plant materials from infested areas. Signs will be posted along the construction workspace
to alert approaching construction crews to wash station locations.
A portion of the environmental training, required for construction personnel prior to
commencing work, will be devoted to a discussion of noxious weed control issues and applicable
project requirements.
2.2 Preventative Measures
The following preventative measures will be implemented to prevent the spread of noxious
weeds:
• Vehicles and equipment will be required to arrive at the work site clean, power -washed, and
free of soil and vegetative debris capable of transporting weed seeds or other propagules.
• Wash stations will be required at designated infestation areas. Equipment will be power -
washed to remove soil and propagules prior to leaving the infested area. Wash stations will
be constructed in accordance with the typical drawing in Attachment 2.
• Materials used for erosion control and reclamation (i.e. straw bales and seed mixes) will be
obtained from sources that are certified weed -free.
• Disturbed areas will be reseeded in accordance with the Reclamation Plan as soon as possible
after construction activities have been completed.
2.3 Monitoring
EnCana will continue to monitor the distribution and density of noxious weeds on the
construction workspace for the life of the pipeline. Surveys will be conducted concurrently with
reclamation monitoring and will occur as early in the year as feasible to identify and control
noxious weeds before they produce seed. Monitoring data collected will include the noxious
weed species, location, and extent of infestation. At those locations where new populations have
been identified or pre-existing populations have expanded, EnCana will take action to eradicate
the population or control their spread. The selection of control methods will be based on the
available technology and information of the weed species. Methods of control may include those
listed in Section 2.1.
Noxious weed problems identified after reclamation criteria have been met (refer to the
Reclamation Plan) will be addressed in a joint endeavor between EnCana, the fee -landowner or
BLM, and the local weed control district.
2 CnlihPIM Pipeline Project
A ugu.sl 2007
Noxious Weed Management Plan—Attachmetu /
ATTACHMENT 1 -NOXIOUS WEED INFESTATIONS
Collhran Pipeline Project
August 2007
Noxious Weed Management Plan—Attachment I
(To be inserted after Spring 2008 inventory)
Collhran Pipeline Projeer A I -
August 2007
Noxious Weed Management Plan—Attachment 2
ATTACHMENT 2 -WASH STATION TYPICAL
Collbatn Pipeline P i,jeet
August 2007
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Cornwall Pipeline Project
August 2007
A2 -I
Paleontological Resources
Protection Plan
Paleontological Resources Protection Plan
TABLE OF CONTENTS
1.0 Introduction 1
1.1 Purpose 1
2.0 Training 1
3.0 Monitoring and Reporting Requirements 1
3.1 Monitoring 1
3.2 Reporting 2
4.0 Discovery Requirements 2
LIST OF ATTACHMENTS
Attachment 1—Monitoring Locations
Collbran Pipeline Project
August 2007
Paleontological Resources Protection Plan
1.0 INTRODUCTION
This Paleontological Resources Protection Plan (plan) describes protection measures to be taken
by EnCana Oil & Gas (USA) Inc. (EnCana) and its contractors (Contractor) to avoid or minimize
adverse impacts to paleontological resources during construction and subsequent reclamation,
restoration, and maintenance activities.
Measures identified in this plan apply to work within the project area defined as the construction
workspace, temporary use areas, and other areas used during construction of the project.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating construction on the project.
1.1 Purpose
The purpose of this plan is to provide for the identification, evaluation, and treatment of
paleontological resources that may be impacted as a result of construction of the project. This
plan also defines the responsibilities and measures to preserve and protect paleontological
resources during construction of the project. This plan will be developed as the implementing
document for relevant mitigation measures contained in the Environmental Assessment and may
be updated prior to construction to ensure that all mitigation measures have been included.
2.0 TRAINING
The Contractor will inform all crews of requirements relating to paleontological resource
protection. All construction personnel who operate ground -disturbing equipment will receive
special instruction on the types of fossils that may be encountered and the procedures to be
followed if they encounter fossils. All construction and other employees present on the project
will be informed of both the Environmental Inspector and Paleontological Monitor's authority to
halt work. All personnel will be informed that they are subject to prosecution for knowingly
disturbing fossil localities, or for collecting fossils. Violation may result in removal from the
project and/or may result in civil or criminal penalties.
3.0 MONITORING AND REPORTING REQUIREMENTS
Paleontological resource monitoring will be conducted by a Paleontological Monitor to ensure
that fossils are preserved and to ascertain whether construction may continue after the
unexpected discovery of any vertebrate fossils.
3.1 Monitoring
The Paleontological Monitor will monitor project construction through Condition 1 formations
and will spot-check construction activities through Condition II formations. The Contractor is
responsible for notifying EnCana's Environmental Inspector at least 72 hours in advance of areas
requiring monitoring, so that the Paleontological Monitor can be deployed where required. The
Contractor will be responsible for all construction delays due to insufficient notification. Areas
Collbran Pipeline Project
August 2007
Paleontological Resources Protection Plan
requiring paleontological monitoring are included in Attachment 1.
Paleontological monitoring in Condition I formations will consist of monitoring trenching
activities. The Paleontological Monitor will follow the ditching equipment at a cautionary
distance, allowing time for construction dust to settle and for visible detection of fossils.
Paleontological monitoring in Condition II areas will involve periodically spot-checking the
trench prior to backfill activities.
3.2 Reporting
The Paleontological Monitor will document daily monitoring activities on daily monitoring
report forms that will be delivered to the Environmental Inspector on a daily basis.
Paleontological monitoring results will be reported on a bi-weekly basis to the BLM Authorized
Officer in a short letter report.
4.0 DISCOVERY REQUIREMENTS
If vertebrate fossils are discovered during construction, the Contractor will immediately stop all
work near the discovery. The following steps will be implemented when vertebrate fossils are
discovered:
• Cease all earth disturbing activity within 100 feet of the discovery.
• Contact the BLM Authorized Officer, Environmental Inspector, and Paleontological Monitor
immediately. At the direction of the BLM, the Paleontological Monitor will assess the nature
of the discovery and determine the necessary course of action. If necessary, the
Paleontological Monitor will mark the area and recommend procedures to be implemented to
avoid further site damage. EnCana will protect the discovery until removed.
CoI/Gran Pipeline Project
August 2007
Paleontological Resources Protection Plan—Attachment /
ATTACHMENT 1 -MONITORING LOCATIONS
Collin -an Pipeline Project
August 2007
Paleontological Resources Protection Plan—A nehmen /
(To be inserted upon completion of paleontological inventory)
CoIlbnn Pipeline Project A 1-1
August 2007
Reclamation Plan
Reclamation Plan
TABLE OF CONTENTS
1.0 Introduction 1
1.1 Purpose 1
1.2 Goals and Objectives 1
2.0 Vegetative Clearing and Topsoil Salvage 1
2.1 Clearing 1
2.2 Topsoil Conservation 2
3.0 Reclamation Process 2
3.1 Agricultural Features 3
3.1 Rock Disposal 3
3.2 Final Cleanup 3
3.3 Topsoil Restoration 4
3.4 Permanent Erosion Control 4
3.5 Rock and Vegetative Debris 4
3.6 Seedbed Preparation 4
3.7 Soil Supplements 5
3.8 Revegetation 5
3.8.1 Species Selection and Sources 5
3.8.2 Seed Application Rates and Viability 5
3.8.3 Seeding Methods and Procedures 6
3.8.3.1 Drill Seeding 6
3.8.3.2 Broadcast Seeding 6
3.9 Grazing 6
4.0 Reclamation Schedule and Documentation 7
5.0 Post -Construction Monitoring and Evaluation 7
5.1 Revegetation and Erosion Control Monitoring 7
5.1.1 Monitoring Agricultural Fields 7
5.1.2 Evaluating Reclamation Success 8
5.2 Post -Construction Reporting 8
LIST OF ATTACHMENTS
Attachment 1—Approved Seed Mixes, Rates, and Application Areas
Collbran Pipeline Project i
August 2007
Reclamation Plan
1.0 INTRODUCTION
This Reclamation Plan (plan) describes measures to be taken by EnCana Oil & Gas (USA) Inc.
(EnCana) and its contractors (Contractor) for vegetative clearing, topsoil salvage and restoration,
reseeding, and reclamation monitoring.
Measures identified in this plan apply to work within the project area defined as the construction
workspace, temporary use areas, and other areas used during construction of the project.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating construction on the project.
1.1 Purpose
The purpose of this plan is to describe prescribed methods for vegetative clearing, topsoil
salvage, topsoil replacement, reseeding, and monitoring for reclamation success. This plan will
be developed as the implementing document for relevant mitigation measures contained in the
Environmental Assessment and may be updated prior to construction to ensure that all mitigation
measures have been included.
1.2 Goals and Objectives
The short-term objectives of reclamation are to control erosion and sedimentation and to
minimize impacts to adjacent land uses. Properly executed construction practices and optimum
scheduling will mitigate short-term impacts. Long-term objectives include controlling erosion
and sedimentation, protecting water resources and soils, limiting the introduction and spread of
noxious weeds, and returning disturbed areas to pre-existing condition. Monitoring during
construction and post -construction will ensure that these goals are achieved.
2.0 VEGETATIVE CLEARING AND TOPSOIL SALVAGE
2.1 Clearing
Vegetation will be cleared and the construction workspace graded to provide for safe and
efficient operation of construction equipment and inspection vehicles, and to provide space for
the storage of subsoil and topsoil. Construction activity and ground disturbance will be limited to
approved, staked areas.
Trees will be cut with a chain saw and/or mechanical shears and brush will be generally cut with
a hydro -axe or similar equipment. Trees and brush will be cut as close to the ground as possible.
Vegetative material will typically be chipped or shredded and incorporated into the topsoil.
Stumps that are not shredded or chipped and incorporated into the topsoil will be removed and
disposed of at an approved disposal facility.
Collbran Pipeline Project
August 2007
Reclamation Plan
2.2 Topsoil Conservation
Topsoil will be salvaged where required by the BLM and fee -landowners and protected along
most of the pipeline route to facilitate revegetation of the construction workspace after
construction is complete. Topsoil will be segregated using one of the following methods: from
either the full -work area (full -construction workspace method), from the trenchline only
(trenchline only method), or from the trenchline and working side (trench and working side
method). On any lands requiring grading, the topsoil will be stripped from the entire portion of
the construction workspace that requires grading.
On BLM lands, all available topsoil up to a depth of 6 inches will be removed from the
trenchline and working side of the workspace. On any lands requiring grading, the topsoil will be
stripped from the entire portion of the workspace that requires grading.
On fee -lands, topsoil will generally be stripped up to a depth of 6 inches from the trenchline;
however, at the fee -landowner's request, more than 6 inches of topsoil may be salvaged and/or
topsoil will be salvaged across the full -width of the construction workspace or a portion thereof.
On any lands requiring grading, the topsoil will be stripped from the entire portion of the
construction workspace that requires grading. Up to 12 inches of topsoil will be stripped across
the full -width of the construction workspace in irrigated agricultural lands. Fee -landowner
requirements are listed in the Fee -Lands Line List included as Attachment 2 of the Plan of
Development.
Topsoil will be stockpiled separate from subsoil and will not be used to pad the trench or
construct trench breakers. Dry drainages or washes that cross the construction workspace will not
be blocked with topsoil or subsoil piles. Topsoil and subsoil will be placed on the banks of the
drainage. Gaps will be left periodically in the topsoil and subsoil windowed to avoid ponding and
excess diversion of natural runoff during storm events.
3.0 RECLAMATION PROCESS
After the final installation of the pipeline, all disturbed portions of the construction workspace
(including the construction workspace, travel lane, and temporary use areas) will be returned to
pre -construction grades and contours. Topsoil will then be replaced over the right-of-way from
the approximate area in which it was stripped.
Revegetation will be the primary method to stabilize soils and ensure permanent erosion control
over the long term. Every effort will be made to complete final cleanup and installation of
permanent erosion control measures within 30 days after final backfilling is completed.
The following sections outline the pre -construction planning and sequential steps for restoring
the construction workspace and temporary use areas following installation of the pipe and
backfilling of the trench.
2 Collbran Pipeline Project
August 2007
Reclamation Plan
3.1 Agricultural Features
All irrigation ditches, cattle guards, fences, and artificial and natural livestock and wildlife water
sources will be maintained and repaired to at least pre -construction conditions. Temporary
measures will be provided, as agreed with the fee -landowner or BLM, for any of these facilities
that are disrupted during the construction or reclamation process. BLM fence specifications are
included in Attachment 3 of the Plan of Development.
3.1 Rock Disposal
Excess rock is defined as all rock that cannot be returned to the existing rock profile in the trench
or graded cuts, or is not needed to restore the construction workspace to a condition comparable
to that found adjacent to the construction workspace. Excess rock will be randomly distributed
across the construction workspace, piled or windrowed to create or enhance wildlife habitat, or
arranged to block use of the reclaimed construction workspace by motor vehicles. If not
practical, the Contractor will remove other excess rock from the construction workspace and haul
it to an approved disposal site. EnCana will coordinate with fee -landowners or the BLM
regarding the methods of disposal.
On irrigated agricultural lands, rocks will be removed from at least the top 12 inches of soil and
diligent efforts will be made to remove stones greater than 4 inches in any dimension if the off -
construction workspace areas do not contain stones greater than 4 inches in any dimension.
Requirements for rock removal may vary between fee -landowners and will be listed in the Fee -
Lands Line List, included in Attachment 2 of the Plan of Development.
3.2 Final Cleanup
Within 30 days after backfilling the trench, the Contractor will make every effort to complete
final cleanup and installation of permanent erosion control structures.
The construction workspace and other project -related areas where soil has been disturbed will be
restored as close to pre -construction grades, compaction, and other conditions as possible. No
solid waste, rock, trash, or vegetative debris will be buried on the construction workspace.
Irrigated agricultural lands are of special concern and require precise re -contouring and trench
compaction to return fields to pre -construction conditions. The Contractor will work closely with
fee -landowners to ensure irrigated agricultural lands are effectively restored.
Final compaction of disturbed areas will be returned to approximate pre -construction conditions.
Any compacted areas, including but not limited to the travel lane, will be decompacted.
Compacted areas will be decompacted with a scarifier to a depth of 6 to 10 inches prior to topsoil
replacement and seeding. Compacted areas on irrigated agricultural land where topsoil was not
salvaged will be decompacted to a depth of 18 inches using a paraplow or other deep tillage
implement so as not to mix topsoil and subsoil horizons.
Collbran Pipeline Project 3
August 2007
Reclamation Plan
3.3 Topsoil Restoration
After the trench has been backfilled and the construction workspace regraded, the Contractor will
redistribute topsoil to the approximate location from which it was originally removed. Restored
topsoil will be left in a roughened condition to discourage erosion and enhance the quality of the
seedbed. Topsoil will not be handled during excessively wet or frozen conditions.
Topsoil will be redistributed as close to original salvage depths as possible. Segregation of
subsoil and topsoil will be maintained throughout final cleanup procedures. The Contractor will
be responsible for replacement of lost or degraded (mixed) topsoil with topsoil imported from an
EnCana-approved and certified weed -free source.
Additional erosion control and soil stabilization will be required in areas adjacent to or within
drainages. See the Stormwater Management Plan and the Waterbody Crossing and Wetland
Protection Plan for additional information.
3.4 Permanent Erosion Control
Permanent erosion control methods will be utilized as needed for stabilization of slopes and soils
as described in the Stormwater Management Plan. Permanent erosion control measures will be
installed within 30 days after the trench is backfilled to aid in site stabilization wherever
required.
3.5 Rock and Vegetative Debris
Vegetative mulch and excess rock may be used to reduce erosion potential by providing
additional surface relief structure. In areas with a pre-existing rocky surface material, the
Contractor will spread rock over the construction workspace to maintain a surface appearance
similar to that of adjacent undisturbed terrain. Suitable sites include naturally rocky slopes and
areas that have a natural gravel, cobble, or boulder veneer on the surface. Suitable sites will be
determined in conjunction with the BLM or the fee -landowner.
On BLM lands and where approved by the fee -landowner, the Contractor will randomly
distribute any windrowed trees, shrubs or other remaining vegetation debris over the construction
workspace.
Straw mulch or equivalent will be applied as discussed in the Soil Conservation, Sedimentation,
and Erosion Control Plan.
3.6 Seedbed Preparation
The Contractor will scarify, till, or harrow the seedbed to a depth of 3 to 4 inches prior to seeding
where needed to improve revegetation potential. Those sites where seedbed preparation is not
practical (e.g., steep slopes, rocky areas, etc.) will be left with adequate roughness following
topsoil replacement to create micro -environments for seed germination and growth, and to
reduce the potential for soil movement.
4 Collbran Pipeline Project
August 2007
Reclamation Plan
3.7 Soil Supplements
Generally, fertilizer will not be used unless requested by the fee -landowner. At this time, no
areas have been identified that require fertilizer.
3.8 Revegetation
The Contractor will be responsible for seeding the construction workspace, temporary use areas
and off -construction workspace ancillary sites using EnCana-supplied seed mixes, appropriate
seeding methods, and approved application rates. The seeding requirements and scheduling of
reclamation activities will be determined in coordination with BLM or fee -landowner.
3.8.1 Species Selection and Sources
Selection of grass and shrub species for revegetation will be based on pre -construction
community composition and soil types, as well as establishment potential, soil stabilizing
qualities, post -construction land use objectives, and BLM and fee -landowner recommendations.
Native species will be utilized on BLM lands and native species will be utilized to the extent
possible on fee -lands unless non -natives are specifically requested by a fee -landowner. Project
seed will be certified weed -free and will be purchased from and blended by qualified producers
and dealers.
Seed mixes will be purchased from commercial seed vendors and must be state -certified weed -
free mixtures. Seed bag tags will be collected and submitted to the BLM and appropriate county
to confirm that the seed was purchased from a commercial seed vendor and was tested and
certified. Seeding rate will be listed as pounds per acre of pure live seed (PLS). The Contractor
will be responsible for providing all seed tags to the Environmental Inspector at the end of each
day. The Environmental Inspector will provide seed tags and stationing seeded to the
Environmental Manager who will provide the seed tags and stationing seeded to the BLM or
county. Approved seed mixes, rates, and application areas are identified in Attachment 1.
3.8.2 Seed Application Rates and Viability
Seeding rates will be determined in PLS pounds per acre and seeds per square foot based on
drilled application rates. Broadcast seeding rates will be twice the drill rate. Seed will be used
within 12 months of testing to assure seed viability. If additional seeding is required in the year
following construction, additional viability tests will be conducted to determine any need for
adjustment of application rates.
Wetlands will not be seeded. Successful recolonization by wetland species is generally related to
effective topsoil salvage methods and sources of seed and rhizomes in adjacent areas.
Streambanks will be seeded immediately upon completion of final cleanup as described in the
Waterbody Crossing and Wetland Protection Plan.
Collbran Pipeline Project 5
August 2007
Reclamation Plan
3.8.3 Seeding Methods and Procedures
The Contractor will employ broadcast or drill seeding as determined in the field by EnCana.
Seeding activities will be contingent upon weather and soil conditions, and subject to evaluation
by the Environmental Inspector. Seeding will not be permitted if there is more than 2 inches of
snow on the ground unless approved by the Environmental Inspector and BLM Authorized
Officer or field representative.
3.8.3.1 Drill Seeding
Drill seeding is the preferred seeding method and will be employed wherever soil characteristics
and slope allow effective operation of a rangeland seed drill. Drill seeding will be performed
perpendicular to the slope. Seed will be placed in direct contact with the soil at an average depth
of 0.5 -inches, covered with soil, and firmed to eliminate air pockets around the seeds. Seed will
be applied using a rangeland seed drill with a seed release and agitation mechanism sufficient to
allow seeds of various sizes and densities to be planted at the proper seeding depth.
3.8.3.2 Broadcast Seeding
Broadcast seeding will be employed only in areas where drill seeding is unsafe or physically
impossible. Seed will be applied using manually operated cyclone -bucket spreaders, mechanical
spreaders, or blowers. Seed will be uniformly broadcast over disturbed areas. Broadcast
application rates will be twice that of drill rates. Immediately after broadcasting, the seed will be
uniformly raked, chained, dragged, or cultipacked to incorporate seed to a sufficient seeding
depth. If the area is seeded prior to a soil crust forming, harrowing or raking may not be
necessary.
3.9 Grazing
Prior to and during construction, EnCana will keep grazing allotment permittees on BLM lands
and ranchers on fee -lands informed regarding schedules to allow them ample opportunity to
move livestock away from the construction workspace. Gates and fences will be installed along
the construction workspace as required. Hard or soft plugs will be left or installed to allow
livestock to cross to either side of the construction workspace during construction. Gates, fences,
and cattle guards will be repaired or replaced after construction as agreed to with the fee -
landowner or BLM. These facilities will be left in as good as or better shape than the pre -
construction condition.
Fences crossed by the pipeline and cattle guards or gates on access roads or within the
construction workspace damaged during construction on BLM lands will be rebuilt or replaced
in accordance with BLM specifications. BLM specifications are included in Attachment 3 of the
Plan of Development. Fences will be properly braced prior to cutting and the permittee or
rancher will be provided the opportunity to be present when the fence is cut and repaired.
Riparian areas on BLM lands will be fenced until reclamation is successful. Fence will be
installed around the incised banks and channel with a sufficient gap to allow for passage of
wildlife or livestock up or down the channel.
6 Calibre?? Pipeline Project
August 2007
Reclamation Plan
4.0 RECLAMATION SCHEDULE AND DOCUMENTATION
Reclamation activities will be determined in part by construction schedules and seasonal climatic
conditions. Seeding and planting will be coordinated with other reclamation activities to occur as
soon after seedbed preparation as possible.
Upon completion of reclamation, EnCana's Construction Inspector, Environmental Inspector,
and Land Agent will perform a final inspection of the construction workspace and ancillary
facilities to verify that pre -construction commitments have been satisfied. A copy of the post -
reclamation inspection form will be transmitted to the Contractor if any deficiencies or a need for
remedial action is noted.
5.0 POST -CONSTRUCTION MONITORING AND EVALUATION
5.1 Revegetation and Erosion Control Monitoring
During the first growing season following construction and reclamation, EnCana will conduct
intensive surveys to assess revegetation success, evaluate erosion control measures, and
determine the need for further reclamation.
Revegetation monitoring will include evaluation of the following parameters as compared to
adjacent (off -construction workspace) vegetation:
• percent total herbaceous cover (seeded species plus desirable volunteers),
• new or expanded populations of noxious weeds, and
• species composition.
Areas with poor germination and/or growth will be evaluated to determine, if possible, the cause
of the problem. Reclamation techniques will be modified as necessary to address any identified
problems and appropriate remedial measures will be undertaken. The Contractor will be
responsible for remediating any problem areas identified by EnCana for the first growing season
following construction. Thereafter, EnCana will be responsible for obtaining a reclamation
contractor to perform any necessary work.
Erosion control monitoring will be performed in response to significant weather events and/or
concurrently with the revegetation monitoring during the first year following construction.
Success criteria for both are discussed in Section 5.1.2.
Both erosion control and revegetation monitoring will be conducted routinely throughout the life
of the pipeline to evaluate long-term survival of reestablished vegetation and the effectiveness of
erosion control measures with specific attention to problem sites.
5.1.1 Monitoring Agricultural Fields
EnCana will periodically monitor irrigation ditches and irrigated agricultural fields for two years
following construction to ensure that field flow characteristics have been maintained. The
Contractor will be notified if any remedial work is required.
Collbran Pipeline Project 7
August 2007
Reclamation Plan
5.1.2 Evaluating Reclamation Success
EnCana is responsible for the stability and revegetation of all areas disturbed as a result of
construction for the life of the pipeline. As discussed in Section 5.1, EnCana will conduct
intensive monitoring after the first growing season and routinely thereafter to assess soil stability
and revegetation success.
The Contractor will reseed any portion of the construction workspace that does not exhibit 50
percent total herbaceous cover (comprised of seeded species plus desirable volunteers) relative to
adjacent (off -construction workspace) vegetation after the first complete growing season.
Additional seeding will be completed during the next seeding season (fall or spring). In the event
that first year revegetation is affected by precipitation amounts significantly below the annual
average, EnCana may request deferment of additional seeding activities until the following
seeding window.
The reclaimed construction workspace will be considered stable when the surface appears similar
to adjacent undisturbed land and the following accelerated erosion indicators do not exist:
• perceptible soil movement (exceeding pre -construction conditions),
• flow pattern development resulting in rills or gullies greater than 12 inches in depth , or
• trench subsidence or slumping.
Revegetation will be considered successful when the following criteria are met:
• total herbaceous (seeded species plus desirable volunteers) cover is at least 70 percent of that
on adjacent land, and
• species composition is comprised of a mix of seeded species and desirable volunteers from
adjacent communities.
5.2 Post -Construction Reporting
EnCana will include a discussion of soil stability, vegetation success, noxious weed status and
control treatments, and identified problems as part of a post -construction activity report to be
submitted annually to the BLM until success criteria for all sites are met.
8 Collbran Pipeline Project
August 2007
Reclamation Plan—Attachment 1
ATTACHMENT 1—APPROVED SEED MIXES, RATES, and APPLICATION AREAS
Collbran Pipeline Project
August 2007
Reclamation Plan—Attachment I
(To be inserted after BLM determines seed mixes)
Collbran Pipeline Project A1-1
August 2007
Safety Plan
Safety Plan
TABLE OF CONTENTS
1.0 Introduction 1
1.1 Purpose 1
2.0 Health and Safety Requirements 1
2.1 Safety Training 1
2.2 General Requirements 1
2.3 Working Hours 2
2.4 Notification and Documentation of Spill Procedures 3
2.5 Mechanical Damage to Underground Facilities 3
LIST OF ATTACHMENTS
Attachment 1—Emergency Response Plan
Collbran Pipeline Project
August 2007
Safety Plat
1.0 INTRODUCTION
This Safety Plan (plan) identifies measures to be taken by EnCana Oil & Gas (USA) Inc.
(EnCana) and its contractors (Contractor) to minimize hazards to persons working on and
visiting the project and to comply with all applicable safety requirements and regulations.
Measures identified in this plan apply to work within the project area defined as the construction
workspace, temporary use areas, and other areas used during construction of the project.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating construction on the project.
1.1 Purpose
The purpose of this plan is to describe safety standards and practices that will be implemented to
minimize health and safety concerns related to construction of the project. This plan will be
developed as the implementing document for relevant mitigation measures contained in the
Environmental Assessment and may be updated prior to construction to ensure that all mitigation
measures have been included.
2.0 HEALTH AND SAFETY REQUIREMENTS
2.1 Safety Training
Prior to initiating construction activities, EnCana will arrange a meeting between the Contractor
and EnCana's Construction Inspection Staff to discuss safety aspects of the work, safety hazards
particular to the work site, and to outline safety responsibility and authority of EnCana and
Contractor personnel.
During construction of the project, it will be the responsibility of the Contractor to train workers
and keep them up-to-date regarding safety matters. The Contractor will provide pre -job
orientation to all workers engaged on the project and ensure all workers are competent to
perform any job requested. The Contractor will also make all of its workers available for any
required EnCana orientation or safety training.
2.2 General Requirements
The Contractor will ensure that the following measures are implemented:
• Adhere to procedures presented in the Contractor's approved safety plan and to applicable
federal, state, and local statutory requirements.
• Report all accidents and injuries to the Construction Inspector.
• Remedy any unsafe conditions or situations as requested by the Construction Inspector.
Collbran Pipeline Project
August 2007
Safety Plan
• Work safely so other employees are not placed at risk.
• Use specified and required personal safety equipment in performance of all duties.
• Maintain all construction sites in a sanitary condition.
• Cease normal pipeline construction activities, except strength testing activities, by sunset.
• Provide fugitive dust control in accordance with federal, state, or local requirements. Refer to
the Fugitive Dust Control Plan.
• Ensure that equipment is properly maintained to reduce emissions and comply with federal,
state, and local air quality emission standards and regulations.
• Prohibit firearms, hunting, alcohol, and drugs on EnCana property, the construction
workspace, temporary use areas, access roads, and ancillary project facilities.
• Ensure, when radiographic equipment is to be used, that the area is clear and that all
personnel are at a safe distance from the radiation source. Radiation warning signs will be
placed at the edges of the safe area.
• Heed all OSHA, federal, state, and local trenching regulations, and implement measures to
ensure the safety of workers working in the trench by using sheet piling, sloping, etc.
• Comply with all federal, state, county and local fire regulations pertaining to the prevention
of uncontrolled fires. Refer to the Fire Prevention and Suppression Plan for additional
information.
• Ensure that all hazardous and potentially hazardous materials are transported, stored, and
handled in accordance with all applicable legislation. Refer to the Hazardous Materials
Management and Spill Prevention, Containment and Countermeasure Plan for additional
information.
• Implement safety precautions during static testing as described in the Strength Testing Plan.
• Comply with requirements in the Transportation Management Plan where personnel or
equipment are working at or near road crossings.
2.3 Working Hours
With the exception of strength testing, working hours will generally be from sunrise to sunset
Monday through Saturday.
2 Cothran Pipeline Project
August 2007
Safety Plan
2.4 Notification and Documentation of Spill Procedures
Notification and documentation procedures for all hazardous materials or petroleum product
spills that occur during project construction, operation, or maintenance will conform to
applicable federal, state, and local laws. The Contractor will report to EnCana's Environmental
Inspector all hazardous substance releases regardless of size, any spill which threatens or enters
any waterbody, any petroleum spill larger than 25 gallons, and spills of any substance that are
over 1 gallon in size on BLM lands. Verbal reports are required immediately following a major
spill when doing so would not delay clean up or administration of urgent medical care. EnCana's
Environmental Inspector will determine if the spill meets the following criteria for immediate
agency notification:
• any release of hazardous material over the applicable reportable quantities (refer to
Attachment 3—List of Reportable Quantities)
• a spill which threatens or enters a waterbody or wetland
• a petroleum spill over 25 gallons
• any spills greater than 1 gallon on BLM lands
2.5 Mechanical Damage to Underground Facilities
The Contractor will give adequate advance notification of all work that will be performed within
existing pipeline easements, rights-of-way, or property so that site preparation and supervision
can be provided. Before commencing any excavation, the Contractor will receive authorization
to proceed from EnCana's Construction Inspector.
The Contractor will utilize the "One Call" system to locate and stake the centerline and limits of
all underground facilities in the area of proposed excavation. The Contractor will provide 48-
hour notification to the owner/operator of and foreign pipeline prior to performing any work
within 10 feet of buried or aboveground pressurized gas piping. Machine excavation will not be
performed closer than 5 feet from any existing pipeline encountered in the construction
workspace unless authorized by the pipeline owners/operators. At a minimum, the ditch will be
excavated to allow 24 inches of clearance (unless otherwise specified by the foreign pipeline
owner/operators) between EnCana pipelines and other pipelines or underground facilities.
Collbran Pipeline Project 3
August 2007
Safety Plan—Attachment l
ATTACHMENT 1 -EMERGENCY RESPONSE PLAN
Collbran Pipeline Project
August 2007
Safety Plan—Attachment I
(To be provided by the Contractor prior to construction in Spring 2008)
Collbran Pipeline Project A I -1
August 2007
Stormwater Management Plan
Storm Water Management Plan
For
EnCana Gas Gathering
Plateau Creek Area
October, 2006
Prepared for:
EnCana Gathering Services (USA) Inc.
Prepared by:
C0RDI LLERAN
Cordilleran Compliance Services, Inc
826 21 % Road
Grand Junction, Colorado 81505
Plateau Creek Area SWMP EnCana Gas Gathering
TABLE OF CONTENTS
1.0 INTRODUCTION 1
1.1 Storm Water Runoff Permitting Requirements 1
1.2 Project Description and Background 2
1.3 Project Owner and Operator 2
2.0 CONSTRUCTION SITE DESCRIPTION 3
2.1 Site Location and Construction Area Description 3
2.2 Schedule of Construction Activities 5
2.3 Runoff Characteristics 5
2.4 Existing Vegetation 5
2.5 Receiving Waters 6
2.6 Threatened and Endangered Species and Historic Places 6
3.0 POTENTIAL POLLUTION SOURCES 10
4.0 DESCRIPTION OF CONTROL MEASURES 11
4.1 Soil Erosion and Sediment Controls 11
4.1.1 Flume drainage crossings 12
4.1.2 Check dams 12
4.1.3 Hay bales 12
4.1.4 Rock protection 12
4.1.5 Rolled products 12
4.1.6 Vegetative filters 13
4.1.7 Slope drainage relief 13
4.1.8 Straw wattles 13
4.1.9 Diversion berm/channel 13
4.1.10 Catch basin 14
4.1.11 Gravel surfacing 14
4.1.12 Designated concrete wash areas 14
4.1.13 Topsoil replacement 14
4.1.14 Seeding of pipeline corridors 14
4.1.15 Seeding of other disturbed areas 15
4.1.16 Additional BMP references 15
4.2 Storm Water Management Controls 15
4.3 Other Controls 16
4.3.1 Materials management 16
4.3.2 Fuels and materials management 17
4.3.3 Construction Site Housekeeping 18
5.0 INSPECTION AND MAINTENANCE PROCEDURES 19
6.0 NON-STORMWATER DISCHARGES 21
7.0 FINAL STABILIZATION 22
7.1 Final Stabilization of Short -Term Disturbances 22
7.2 Final Stabilization of Long -Term Disturbances 22
8.0 CERTIFICATIONS 24
8.1 Owner/Applicant Certification 24
8.2 Contractor/Subcontractor Certification 25
Plateau Creek Area SWMP EnCana Gas Gathering
LIST OF FIGURES
Figure 1 Location Map 7
Figure 2a Plateau Creek Area Colbran East 8
Figure 2b Plateau Creek Area Colbran West 9
Appendix A
Appendix B
Appendix C
LIST OF APPENDICES
CPDS General Construction Storm Water Permit
Typical Storm Water BMP Details
Specifics of Administrative Operations, SWMP Supplement Form, and
SWMP Inspection and Maintenance Form
ii
Plateau Creek Area SWMP EnCana Gas Gathering
1.0 INTRODUCTION
This Storm Water Management Plan (SWMP) is written to comply with the Colorado
Department of Public Health and Environment's (CDPHE) General Permit No. COR -
03000 issued on June 30, 2002 and will expire on June 30, 2007, and related U.S.
Environmental Protection Agency (USEPA) National Pollutant Discharge Elimination
System (NPDES) storm water regulations. This SWMP is intended to address storm
water management at all pipeline and gas compression and/or treatment facility
construction sites operated by EnCana Gas Gathering (as shown on page 6) within the
Plateau Creek Area. This plan may be periodically updated as needed to address planned
developments, new disturbances, and other changes needed to manage storm water and
protect surface water quality.
This SWMP may need to be updated during the project life. Updates may include:
1. Revision of existing BMPs as needed to address sediment control, and
2. Deletion of BMPs and reduction in monitoring frequency for individual facility
locations where interim and long-term vegetation have been successfully
established.
1.1 Storm Water 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 storm water associated with construction activity for soil disturbances of
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 storm water 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 I, 2002.
Construction permits have been required since 1992 for oil and gas activities that disturb
5 or more acres during the life of the project or are part of a larger common plan of
development. In 2005, CDPHE extended the requirement for Colorado Discharge Permit
System (CPDS) permits to include oils and gas activities that disturb between 1 and 5
acres. 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.
This SWMP is specific to Gathering's activities within the Plateau Creek Area as shown
on Figure 1. Within the Plateau Creek Area, ground disturbing activities may be
undertaken by landowners and other natural gas companies within the field permit
boundary.
1
Plateau Creek Area SWMP EnCana Gas Gathering
1.2 Project Description and Background
EnCana Gathering Services (USA) Inc. (EnCana) is actively developing the natural gas
resource in Westem Colorado. EnCana's gas gathering division primarily conducts
gathering and conveyance of natural gas through pipelines which are typically buried
beneath the ground surface. Depending on the specific project, gas compression and/or
treatment may be required. All gas gathering construction projects will be covered by a
State storm water permit and this SWMP is specific to Gathering's activities within the
Plateau Creek Area.
1.3 Project Owner and Operator
The property owner and operator is EnCana. Their address is:
EnCana Oil & Gas (USA), Inc.
2717 County Road 215
Parachute, Colorado 81635
Ph (970) 285-2600
Fax (970) 285-2691
The EnCana contact person for the projects is Brenda Linster Herndon. Brenda can be
contacted by phone at (970) 285-2608. EnCana will be in charge of all aspects of the
property and this project. Contractor(s) will do the actual construction, but all work will
be supervised by EnCana and all decisions will be made by EnCana.
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Plateau Creek Area SWMP EnCana Gas Gathering
2.0 CONSTRUCTION SITE DESCRIPTION
2.1 Site Location and Construction Area Description
Gas gathering construction projects will be located within EnCana's Plateau Creek Area
(see Figure 1, page 6). Gas gathering projects are typically pipelines or gas
compression/treatment facilities. The vast majority of ground disturbance will be due to
pipeline construction. Pipeline corridors are linear features with a typical width of 50 to
60 feet, with lengths varying from less than a mile to several miles. Both the width and
length of disturbance will vary depending on gas transportation needs and other factors.
After a pipeline origin, destination, and preferred route have been identified, the
following construction sequence is generally followed:
1. Surveying: topography, vegetation, wildlife and archeology, as necessary.
2. Vegetation clearing, as necessary. If conducted, cleared vegetation will be placed
in a windrow at the edge of the work area, removed from the construction site, or
burned depending on landowner requirements.
3. Topsoil stripping. Topsoil is removed from the work area and stockpiled in a
windrow near the edge of the work area.
4. General grading. For pipeline segments that occur in relatively rough twain
general grading will be conducted to create a safe and workable ground surface.
This is generally done to form a relatively level work surface on steep cross
slopes and to reduce slopes in undulating terrain (arroyo and wash crossings).
5. Trench excavation. The trench needed for pipeline installation is generally
located near the center of the ROW and is created by track -mounted excavators.
The trench depth and width will vary based on the number of pipes to be installed
and the pipe diameter(s). Generally, a 4 -foot deep trench will be excavated.
Trench spoils are cast into a windrow.
6. Pipe welding and placement. The pipe pieces are laid beside the trench and
welded. Long segments of welded pipe are placed within the trench by sideboom
dozers.
7. Pipe bedding. Trench spoils are handled by excavators equipped with bedding
boxes. The bedding boxes remove larger rocks and the fine materia] is placed
beside and over the pipe to prevent potential damage to the pipe.
8. Trench backfill. Bulldozers move soil from the trench spoils windrow to backfill
the trench.
9. General grading. If general grading was conducted to facilitate pipeline
construction these materials will be replaced and graded to recreate the pre -
construction topography.
10. Topsoil placement. Topsoil will be moved from the windrow and redistributed
across the surface of the disturbed area.
11. Vegetative material replacement/removal. Based upon landowner requirements,
stripped vegetation may be hauled off-site or bumed in the work area. At
locations where it is required, vegetative material that was stripped and saved
prior to topsoil removal will be distributed across the disturbed area. Depending
3
Plateau Creek Area SWMP EnCana Gas Gathering
on the type of vegetation and method of seeding this may occur before or after the
disturbed area is seeded.
12. Seeding. The reclaimed disturbed area is seeded. The seed mix will vary
depending on location and surface ownership and will generally match the
surrounding vegetation.
13. Application of erosion stabilization. Depending on terrain (e.g. steep slopes and
drainage crossings), additional measures may be applied to provide for erosional
stability of the reclaimed area. Generally, rolled product will be placed on steep
slopes and rolled product and/or rock will be placed at drainage crossings.
The length of time for pipeline construction between initial ground -breaking and final
reclamation will vary, but is generally completed within 2 to 6 months. Final
stabilization is considered complete when 70 percent of the pre -construction ground
cover has been re-established.
Construction of gas compression and gas treatment facility sites involves typical clearing
and leveling operations, including:
1. Surveying: topography, vegetation, wildlife and archeology, as necessary.
2. Vegetation clearing, as necessary. If conducted, cleared vegetation will be placed
in a windrow at the edge of the work area, removed from the construction site, or
burned depending on landowner requirements.
3. Topsoil stripping. Topsoil is removed from the construction area and stockpiled.
4. General grading. The facility location will graded to provide level building sites
and may be graded to establish surface drainage patterns.
5. Facility -specific grading. Individual facilities may require additional excavation
to allow for construction of foundations. Excess soil will generally be used in
general site grading.
6. Foundation construction. To support facilities (buildings, tanks, processing
equipment, etc.) foundations will be constructed. Foundations may consist of
select backfill, concrete spread footings, or piles.
7. Facility construction. Buildings, tanks, processing equipment, etc will be
constructed.
8. Gravel surfacing. Areas used for access, parking, or materials staging will
typically be gravel surfaced.
9. Reclamation of unused areas. Areas not needed for facilities, roads, parking, or
materials staging will generally be reclaimed. Salvaged topsoil will be spread and
the vegetative seed mix will be applied.
10. Application of erosion stabilization. Depending on terrain (e.g. steep slopes and
drainage crossings), additional measures may be applied to provide for erosional
stability of reclaimed areas. Rolled product may be placed on steep slopes and
rolled product and/or rock may be placed at drainage crossings, as necessary, for
site-specific conditions.
4
Plateau Creek Area SWMP EnCana Gas Gathering
The length of time for facility construction will generally range from 6 to 12 months.
Final stabilization of reclaimed areas is considered complete when 70 percent of the pre -
construction ground cover has been re-established.
A pre -construction assessment will be conducted to determine the location and specific
types of BMPs needed at the construction site before and during construction. These
BMPs will be depicted on the site map for the location, which will be revised as needed
to reflect modifications to the BMPs as construction progresses.
2.2 Schedule of Construction Activities
Natural gas exploration, development and production activities are currently underway at
EnCana's operations (see Figure 1, page 6). Existing and future pipeline construction
corridors are included in this SWMP. For new disturbances, BMPs will be installed prior
to, during and immediately following construction, as practicable, with consideration
given to construction staging, safety, access and ground conditions (e.g. frozen ground) at
the time of construction. Development of the natural gas resource and construction of
pipelines will likely continue for the next 10 years. Production and transport of natural
gas will likely continue for the next 30 years, or more.
2.3 Runoff Characteristics
Runoff characteristics are based on site topography, soil type, and soil/vegetative cover.
Surface elevation ranges from approximately 5,000 to 9,000 feet. Surface soils range
from sands, silts and clays to exposed bedrock. Slopes range from 1 percent to over 100
percent. Pipelines are typically located on valley floors, ridges, mesas and hillsides.
Runoff coefficients for undisturbed areas are expected to range from 0.1 to 0.4. Runoff
coefficients for disturbed areas are expected to range from 0.1 to 0.6, depending on
surface materials and treatment (e.g. bare soil, gravel surface, surface roughening, etc.)
Refer to site-specific SWMP supplements for site-specific pre- and post -construction
runoff coefficients.
2.4 Existing Vegetation
The project area landscape typically includes relatively flat mesas, steep slopes, incised
drainages, areas of natural erosion and alluvial valley bottoms. The area has been
historically and predominantly used for livestock grazing. Recently, there has been an
increase in residential and natural gas development activities. Area vegetation is varied
and typically includes grass, shrub and woodland species, with the dominant vegetation
type primarily dependant upon slope and aspect. Vegetative cover in the area may range
anywhere from 0 to 100 percent and is typically in the range of 40 to 70 percent. Refer to
site-specific SWMP supplements for additional detail on vegetation type and vegetative
ground cover.
5
Plateau Creek Area SWMP EnCana Gas Gathering
2.5 Receiving Waters
The main drainage within the Plateau Creek Area is Plateau Creek. Perennial and
intermittent tributaries of Plateau Creek within the permit area include: Monument
Canyon, Sand Wash, Shire Gulch, Atwell Gulch, Jerry Gulch, Little Anderson Gulch,
West Durant Gulch, Durant Gulch, Clover Gulch, Kimball Creek, Grove Creek, Little
Gulch, Big Creek, Deacon Gulch, Cottonwood Creek, Bull Creek, Spring Creek, Coon
Creek, Mesa Creek, South Tate Creek, King Gulch, Little Wash, Big Wash and unnamed
tributaries. The Colorado River is located at the west edge of the Plateau Creek Area.
Gas gathering projects are conducted over a wide area, which includes both perennial and
intermittent drainages. Refer to site-specific SWMP supplements for additional
information on nearby drainages and outfall characteristics.
2.6 Threatened and Endangered Species and Historic Places
Analysis of environmental effects of projects proposed on Federal lands is required by
the National Environmental Policy Act (NEPA). This analysis is typically presented in
an Environmental Assessment (EA) prepared by the Agency or a third -party contractor.
Field surveys are conducted to assess the presence of threatened and endangered or
special status plant and animal species. Field surveys are also conducted to check for the
presence of archeological artifacts. The EA analyzes the environmental affects of the
proposed action with respect to plants, animals, soils, recreation and air and water
quality. As needed, measures are specified to mitigate environmental affects caused by
the project, or the project may be redesigned to avoid detrimental affects. Agencies will
also request cultural surveys for portions of projects that occur on privately -owned lands
and are connected to proposed actions on Federal land.
6
Plateau Creek Area SWMP EnCana Gas Gathering
3.0 POTENTIAL POLLUTION SOURCES
Potential pollution sources associated with construction of pipelines and facility sites
include:
• Sediment resulting from erosion of soil stockpiles and other areas cleared of
vegetation;
• Leakage of fuels and lubricants from equipment and spills from fueling;
• Trash and debris from clearing activities, construction materials and workers; and
• Fluids used for hydrostatic testing of the completed pipeline (if conducted, this is
generally water but may be nitrogen or other gas).
The most common source of pollution from construction sites is sediment, which can be
carried away from the work site with storm water runoff and impact the water quality of
receiving streams. 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 storm water pollutants. These products are used
in construction activities to power or lubricate equipment and include: fuel, gear oil,
hydraulic oil, brake fluid, and grease. These products will be stored and containers
labeled as required by regulations.
Debris from material staging 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.
Other materials on-site will include compressed gases used in welding, and chemicals
used and stored on-site for use in pipeline installation.
10
Plateau Creek Area SWMP EnCana Gas Gathering
4.0 DESCRIPTION OF CONTROL MEASURES
4.1 Soil Erosion and Sediment Controls
The objective of erosion and sediment controls is to minimize the release of sediments to
storm water runoff. This can be accomplished through the use of structural and/or
nonstructural controls. This section describes erosion and sediment controls to be used at
active construction sites to minimize possible sediment impacts to storm water runoff.
The proposed erosion control features include:
• Assessment and protection, as needed, of nearby drainages with structural BMPs;
• Placement of salvaged topsoil over disturbed surface after reclamation grading
has been completed;
• Construction of flumes at drainage crossings;
• Placement of rolled products, as needed, depending on site-specific conditions;
• Placement of silt fence, straw waddles, or hay bales, as needed, below the top of
disturbed slopes (depending on slope gradient, length and proximity to sensitive
areas);
• Placement of hay bale or rock check dams, as needed, in areas of concentrated
flow;
• Catch basins to retain runoff from gas compression and treatment construction
sites;
• Wash pits at sites where concrete will be used (facility sites); and
• Permanent seeding of reclaimed pipeline corridors and areas not needed for long-
term work access at compressor stations and other facility locations.
The types and locations of structural BMPs for each disturbed area will be determined as
development progresses and construction plans are prepared (to be done prior to
submitting the storm water permit application for a specific pipeline or compressor
station construction project). BMPs generally function to: control sediment through
diverting run-on water away from disturbed areas; to control runoff water generated from
disturbed areas; or to control erosion by stabilizing the soil surface.
• Run-on controls are those features that serve to collect and/or direct run-on water
away from disturbed areas. Run-on controls typically include diversion berms,
channels and flumes.
• Runoff controls are those features that serve to collect and/or direct runoff water
that comes from disturbed areas. These features serve to collect and/or retain
runoff water and remove sediment. Runoff controls may include hay bales, check
dams, silt fence, straw waddles, diversion berm/channels, catch basins and slope
drains.
• Erosion controls are those features that serve to retain soil in-place. Erosion
controls may include gravel surfacing, rolled products, rock protection and
vegetation.
11
Plateau Creek Area SWMP EnCana Gas Gathering
4.1.1 Flume drainage crossings
Flume drainage crossings will be used where the pipeline construction crosses drainages
of sufficient size, or irrigation ditches. At these locations, a culvert will be installed such
that the inlet and outlet will extend at least 3 feet beyond the limit of fill. Fill material
will then be placed over the culvert to create a work surface with a grade that allows
vehicle traffic and provides for safety. A typical flume layout is given in Appendix B.
4.1.2 Check dams
Check dams should be installed in areas of concentrated flow. Check dams may be
constructed of straw waddles, hay bales, or rock. Straw waddles may be used in areas
where the volume of concentrated flow is expected to be minor. Hay bale check darns
may be used in areas where the volume of concentrated flow is expected to be moderate.
Rock check dams should be used in areas where the volume of concentrated flow is
expected to be high, or in areas where maintenance of straw wattles or bales is expected
to be high. Typical check dam installation details are given in Appendix B.
4.1.3 Hay bales
Hay bale check dams, at a minimum will be installed in areas of concentrated flow. Hay
bale check dams should also be installed at suitable locations along new access roads.
Typical hay bale installation details are given in Appendix B.
4.1.4 Rock protection
Rock protection may be installed in areas of concentrated flow. Rock protection may be
necessary at the outlet of culverts or other drainage structures. Channels may be rock
lined in areas where slopes are very steep or high water velocity is expected. A detail for
typical rock protection at a culvert outlet is given in Appendix B.
4.1.5 Rolled products
Rolled products cover a broad variety of manufactured products that are supplied in
rolled packages that serve to provide a protective layer for underlying soil. Rolled
products may include straw, aspen fibers, coconut fibers, or synthetic fibers. They may
be single- or double -netted, or may have no extemal netting. Generally, the service life,
durability and quality of a product relates to its weight and cost. A single -net, straw mat
may suffice for a moderate slope where successful revegetation is expected within 6
months or less; a double -net coconut fiber mat may be needed for steep slopes where
revegetation is expected within 24 months or less; and a synthetic fiber turf reinforcement
mat (TRM) may be needed for channel linings. These products are available from a
variety of manufacturers including North American Green, American Excelsior,
Enviroscape EMC, Contech Construction Products and others.
12
Plateau Creek Area SWMP EnCana Gas Gathering
Manufacturer guidance and local experience should be considered before selecting a
rolled product to use in a specific application. Rolled products should be installed
according to the manufacturer's recommendations. Generally, the use of rolled products
should be considered for post -construction stabilization of pipeline corridor areas where
slopes are steeper than 2h:ly (horizontal:vertical). At facility sites, rolled products will
be used for post -construction stabilization of all slopes that are 2h:ly, or steeper.
4.1.6 Vegetative filters
Vegetative filters may be either standing vegetation in undisturbed areas or vegetative
material salvaged from clearing operations. When using vegetative filters, consideration
should be given to the area of disturbance that will contribute flow, distance to surface
drainage, density of vegetation and effectiveness of vegetation in slowing runoff and
removing sediment.
4.1.7 Slope drainage relief
Rolling dips or water bars may be used to provide drainage of water from the pipeline
corridor, to drain low areas, or to reduce the amount of water flowing on the pipeline
corridor. Slope drains may also be used to convey collected runoff water down a
disturbed slope. Depending on the location and type of drainage relief installed,
additional sediment control features may be needed, such as lining with rolled product or
placement of erosion protection at the outlet.
4.1.8 Straw wattles
Straw wattles (also called logs) are intended to capture and keep sediment on the slopes.
Wattles are useful to temporarily stabilize slopes by reducing soil creep and sheet and rill
erosion until permanent vegetation can be established. Wattles will last an average of one
to two years. The slope may need to be prepared before the rolls are placed. Small
trenches are created across the slope on the contour. The trench should be deep enough to
accommodate half the thickness of the roll (about 3"-5"). The trenches need to be 10 to
25 feet apart. The rolls must be installed perpendicular to water movement, parallel to the
slope contour. Start by installing rolls from the bottom of the slope. The rolls need to fit
snugly against the soil. No gaps should be between the soil and the roll. Willow or
wooden stakes need to be driven through the roll and soil. There should only be 1 to 2
inches of stake exposed above the roll. The stakes should be installed every 4 feet.
Typical straw wattle installation details are given in Appendix B.
4.1.9 Diversion berm/channel
Diversion berms, channels, or combination structures may be used to divert run-on away
from a disturbed area, to collect runoff, or to direct water toward a central BMP (catch
basin). Typical berm and benn/channel details are given in Appendix B.
13
Plateau Creek Area SWMP EnCana Gas Gathering
4.1.10 Catch basin
Catch basins may be low-lying areas or areas contained within earthen berms. Catch
basins operate by retaining a volume of water for a sufficient length of time so that
sediment will fall out of suspension and be contained within the basin. Catch basins
should be placed to collect runoff water, sized to retain an appropriate volume of water,
and should have a provision for controlled release of overtopping flows. Typical catch
basin details are given in Appendix B.
4.1.11 Gravel surfacing
Gravel surfacing may be used to cover soil in areas of high traffic such as roads and
facility areas. Gravel surfacing forms a layer that protects soil from wind and water
erosion and prevents vehicle tracking. Gravel surfacing may be lost or displaced by
vehicular traffic. Gravel surfaces should be inspected to identify the need for placement
of additional gravel.
4.1.12 Designated concrete wash areas
At facility sites where concrete will be used in construction, wash areas will be
designated. All concrete trucks will be required to use the designated wash area. The
wash area will include provision for retaining all wash water. The wash and water
retention areas will be located such that all run-on is diverted and all runoff is retained
within the wash and water retention area.
4.1.13 Topsoil replacement
Salvaged topsoil will be replaced over disturbed areas after completion of reclamation
grading (see Section 2.1). Topsoil may not be found at depths which are salvageable in
all areas; however, topsoil should be salvaged, stockpiled and used, as practicable.
Topsoil placement greatly improves the vegetative growth (relative to subsoil) and also
serves as a BMP. Salvaged topsoil contains organic matter and vegetative debris that
serves as protective mulch. Vegetative debris aids in reducing raindrop impact and
serves to buffer temperatures at the soil surface.
4.1.14 Seeding of pipeline corridors
After completion of construction within a pipeline corridor (see Section 2.1), the
disturbed area (including associated staging areas) will be reseeded. Seed mix
application will be done in the next available seeding season.
The revegetation seed mix should include annual cereal crop seeds or sterile grass species
(e.g. regreen) to help establish vegetative cover. The permanent seed mix, rate,
application method and supplemental materials will be determined by EnCana, the
landowner, or land management agency, as appropriate for the land ownership. In
14
Plateau Creek Area SWMP EnCana Gas Gathering
general, the revegetation seed mix will contain seeds of plants that are found in the
surrounding areas. Reclaimed and seeded areas will be inspected to confirm vegetative
growth and assess the need for re -seeding and/or weed control. Vegetative success is
achieved when new growth reaches 70 percent of the pre -construction vegetative cover.
4.1.15 Seeding of other disturbed areas
After completion of construction of facility sites, areas not needed for access or work
staging should be seeded. In general, this will include all areas not used for facilities,
materials storage, or access.
The seed mix, rate, application method and supplemental materials will be selected by
EnCana, the land owner, or the land management agency, as appropriate for the land
ownership. Reclaimed and seeded areas will be inspected to confirm vegetative growth
and assess the need for re -seeding and/or weed control. Vegetative success is achieved
when new growth reaches 70 percent of the pre -construction vegetative cover.
4.1.16 Additional BMP references
The structural and non-structural BMPs listed above 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 above, or project personnel may need additional
information on the use, specification and maintenance of BMPs. Additional information
resources are listed below:
• For construction BMPs: the Urban Drainage and Flood Control District, a
Colorado front range group of city and county agencies has developed a BMP
manual that is available on the internet at
http://www.udfcd.org/downloads/down_critmanual.htm#vo13
• For construction BMPs and surface stabilization methods: the Alabama Soil and
Water Conservation Committee has 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://swcc.state.al.us/pdf/ASWCC June 2003 Alabama Handbook Constructio
n E&S Control.pdf
• 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 on the intemet at
http://www.blm.gov/bmp/field%20guide.htm
4.2 Storm Water Management Controls
As development of a natural gas field progresses pipelines and facility sites will be
planned and constructed. This SWMP is intended to provide:
1. Guidance for storm water management;
15
Plateau Creek Area SWMP EnCana Gas Gathering
2. A list of suitable structural BMPs;
3. Guidance for revegetation,
4. Requirements for specification, installation, inspection and maintenance of BMPs;
and
5. Requirements for inspection, documentation, and reporting of BMPs and
revegetation.
Given the number of pipelines and facilities that will be constructed for EnCana's
operations and relatively uncertain project schedule, site-specific BMP requirements will
be developed as plans for construction are finalized. These site-specific BMP plans will
be developed and submitted to the storm water administrator. Site-specific BMP plans
(SWMP supplement, form located in Appendix C), are considered to be documents
supplemental to this SWMP (see Specifics of Administrative Operations, in Appendix C).
The storm water administrator will:
I. Maintain the SWMP, site-specific BMP plans and a list of disturbed sites that
need storm water inspections;
2. Ensure that storm water inspections are conducted, as needed; that inspection
reports are filed; and that necessary maintenance is conducted;
3. Ensure that reclamation grading and revegetation are conducted to standard and
that revegetated areas are inspected to determine if vegetative success has been
achieved or if weed controls and/or reseeding is needed; and
4. Ensure that the Gathering storm water management program is conducted in
accordance with the applicable storm water permits.
Depending on the type and location of ground disturbing activities, there may be a need
for inclusion of new and different BMPs. In general, new developments should be
planned with consideration for storm water quality (e.g. minimize disturbed area and
maximize distance from drainages, as practicable).
4.3 Other Controls
4.3.1 Materials management
Pipeline and facility site construction will generate various other wastes during the course
of construction. Other wastes may include the following:
• Trees and shrubs from clearing operations;
• Trash and debris from construction materials and workers; and
• Sanitary sewage.
Each of these wastes will be managed so as to not contribute to storm water pollution.
Trees and shrubs will be stockpiled outside of the work area or placed to provide
additional sediment control. Construction trash and debris will be collected in containers
and hauled off-site for disposal in suitable landfills. Sanitary waste will be containerized
in portable toilets or other storage tanks with waste materials regularly pumped and
transported off-site for disposal at approved facilities.
16
Plateau Creek Area SWMP EnCana Gas Gathering
4.3.2 Fuels and materials management
Petroleum Products
Petroleum products that may be present at the construction sites 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 oils, hydraulic
oils, and other miscellaneous oils and solvents will be stored in containers measuring 55 -
gallon or less.
Pollutants from petroleum products used during construction activities adhere easily to
soil particles and other surfaces. Vehicles and equipment should not be fueled or
serviced within 100 feet of any drainage. In case of a spill or leak, soils contaminated
with petroleum products will be contained and removed to a proper disposal site.
Proposed soil erosion and sediment 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. Proposed maintenance and safe storage practices will
reduce the chance of petroleum products contaminating the drilling 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 (informal and
undocumented) inspections will be conducted to identify leaks and initiate corrective
actions, if needed.
The following guidelines for storing petroleum products will be used.
• All product containers will be clearly labeled.
• Drums will be kept off the ground within secondary containment and stored under
cover, if needed.
• Fuel tanks will be stored within secondary containment.
• Lids of drummed materials will be securely fastened.
• Emergency spill response procedures will be available on-site. Persons trained in
handling spills will be on-call at all times.
• Spill clean up and containment materials (absorbents, shovels, etc.) will be easily
accessible. Spills will be cleaned in a timely manner and reported as required, in
accordance with applicable regulations (i.e., COGCC, CDPHE, EPA or other
agency requirements).
• Contaminated materials will be properly stored on site until they can be disposed
of in accordance with applicable regulations.
• Storage areas and containers will be regularly monitored for leaks and repaired or
replaced as necessary. Workers should be reminded about proper storage and
handling of materials during weekly subcontractor or safety meetings
Other Chemicals Products Management
Additional materials may be used and stored on site for use in construction and
equipment testing activities. These materials will be stored appropriately and managed to
17
Plateau Creek Area SWMP EnCana Gas Gathering
minimize spills and leaks. Storage areas will be regularly inspected and any minor spills
or leaks will be cleaned up immediately.
Laydown and Staging Areas
The pipeline contractor will maintain laydown or staging areas for equipment and
materials storage at each site. These areas will be maintained with good housekeeping
and will be inspected on a regular basis for spills, leaks and potential contamination.
4.3.3 Construction Site Housekeeping
Construction area housekeeping will consist of neat and orderly storage of materials and
containerized fluids. Wastes will be temporarily stored in sealed containers and regularly
collected and disposed of at off-site, suitable facilities. If spills occur, prompt cleanup is
required to minimize any co -mingling of waste materials with storm water runoff.
Routine maintenance will be limited to fueling and lubrication of equipment. Drip pans
will be used during routine maintenance to contain spills or leaks. Any waste product
from maintenance will be containerized and transported off site for disposal or recycling.
There will be no major equipment overhauls conducted on site. Equipment will be
transported off site for major overhauls.
Temporary and permanent roads will be installed and stabilized to minimize the transport
of sediment from the road surface by mobile equipment.
Cleanup of trash and discarded materials will be conducted at the end of each work day.
Cleanup will consist of patrolling the work areas to pickup trash, scrap steel, other
discarded materials, and any contaminated soil. These materials will be disposed of
appropriately.
18
Plateau Creek Area SWMP EnCana Gas Gathering
5.0 INSPECTION AND MAINTENANCE PROCEDURES
To meet requirements of the General Permit, inspection and maintenance of erosion and
sediment controls must occur during the project. Continued inspection and maintenance
is required after construction is completed. The inspection program will include the
following:
1. A qualified person familiar with the SWMP and control measures will conduct the
inspections.
2. Inspections will cover these areas of the construction site:
• Disturbed areas without stabilization
• Material storage areas
• BMPs
• Surface water diversions
• Down gradient areas
• New access roads, and
• Locations where vehicles enter or exit the site
3. Inspections will occur at least once every 14 calendar days and after precipitation
or snow melt events that cause surface erosion.
4. Permanently stabilized areas will be inspected once per quarter.
5. A log of inspections will be kept.
6. Water quality will be assessed for all receiving streams and discharge areas during
each inspection.
7. Disturbed areas and material storage areas that are exposed to precipitation will be
inspected for evidence of pollutants entering nearby drainages.
8. BMPs will be inspected for evidence of deterioration, under -cutting and build-up
of sediment. Sediment will be removed when it has been deposited to one-third to
one-half the height of hay bales or silt fence.
9. Roads used for vehicle access will be inspected for evidence of off-site sediment
transport.
10. Following each inspection, the SWMP will be modified, as necessary, to include
additional controls designed to correct identified problems. Revisions to the
SWMP will be made within 14 days of the inspection.
11. An inspection report summarizing the scope of the inspection, the name of the
person conducting the inspection, date of inspection and observations relating to
the implementation will be prepared. Inspection reports will be retained for at
least 3 years from the date that the site is finally stabilized.
12. Actions taken to modify any storm water control measure will be recorded and
maintained with the SWMP supplement.
13. If no deficiencies are found during the inspection, the report will contain
certification that the site is in compliance with the SWMP. Signatures will be in
accordance with the General Permit Conditions, Part E. 1 (Appendix A).
Maintenance will include prompt repairs and/or adjustments to any erosion and sediment
control structures that are deteriorating or found to be performing inadequately. Repairs
19
Plateau Creek Area SWMP EnCana Gas Gathering
should be made as soon as possible, prior to the next anticipated storm event. EnCana or
designated contractor(s) will maintain materials on-site, such as silt fence, hay bales and
stakes, to make any reasonably expected repairs.
20
Plateau Creek Area SWMP EnCana Gas Gathering
6.0 NON-STORMWATER DISCHARGES
No non -storm water discharges are anticipated from gas gathering construction projects.
Possible exceptions include fire prevention/suppression or dust control activities. If
springs or seeps are found to be in proximity of proposed projects, their location will be
noted on site-specific SWMP supplements.
21
Plateau Creek Area SWMP EnCana Gas Gathering
7.0 FINAL STABILIZATION
A disturbed area is finally stabilized when all construction activities have been completed
and all disturbed areas have been either built on, paved, or a uniform vegetative cover has
been established with a density of at least 70 percent of pre -disturbance levels, or
equivalent permanent, physical erosion reduction methods have been employed. Re-
seeding alone does not qualify. Oil and gas sites are considered finally stabilized when
the above final stabilization criteria have been met and site preparation and interim
reclamation are complete, even through the site will be disturbed again in the future for
final reclamation. However, future land disturbances that follow interim stabilization and
result in disturbance of one acre or greater would require permit coverage at that time.
7.1 Final Stabilization of Short -Term Disturbances
Short-term disturbances are those areas disturbed for a short-term, typically less than a
year, such as construction of a pipeline. These areas will be reclaimed and vegetated
following the completion of construction. Final stabilization is reached when all soil
disturbing activities at the site have been completed and uniform vegetative cover has
been established with a density of at least 70 percent of the pre -disturbance levels or
equivalent permanent, physical erosion reduction methods have been employed. For
short-term disturbances where final stabilization will be achieved almost exclusively
through vegetation establishment, permanent physical methods will be limited to rock
erosion protection. Establishment of vegetation will be conducted as described in
Sections 4.1.14 and 4.1.15.
7.2 Final Stabilization of Long -Term Disturbances
Long-term disturbances are those areas disturbed for the purpose of constructing and
operating long-term facilities, estimated to be 30 years or more for natural gas
development. These areas will reach final stabilization through both methods allowed
under the permit conditions: establishment of uniform vegetative cover with a density of
70 percent of the pre -disturbance levels and/or equivalent, permanent, physical erosion
reduction methods.
Areas developed as stabilized unpaved surfaces needed for operation of the facility after
interim reclamation, also qualify as "finally stabilized." This essentially means dirt road
surfaces and the portions of the well pad (or other facility site) surfaces that cannot be
revegetated due to operational necessity are also considered finally stabilized. This does
not include slopes, ditches and other areas where revegetation is necessary. Stabilized
unpaved surfaces must be prepared in such a way as to prevent ongoing erosion issues.
Areas at facility sites which are not used for the facilities themselves, including access
roads, materials storage yards, or other work areas, will be stabilized with vegetation as
22
Plateau Creek Area SWMP EnCana Gas Gathering
described above for short-term disturbances. As discussed in the above paragraph, dirt
surfaces can be considered as finally stabilized for roads and facility surfaces, provided
that the dirt surface does not result in ongoing erosion issues. Due to local conditions, a
dirt surface road or facility area may need additional stabilization in order to prevent
ongoing erosion issues. These areas should be stabilized with the use of permanent,
physical erosion reduction methods which include, but are not limited to:
1. Surface hardening — covering of the soil surface with hardened products such as
concrete or asphalt pavement.
2. Surface covering — covering of the surface soil with structure that inhibits contact
of precipitation with the soil surface which is generally considered to be
placement of a structure (building or tank) over the soil surface.
3. Gravel surfacing — gravel surfacing 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. Gravel surfaces
will be periodically inspected to determine the need for gravel replacement.
Gravel surfaces will be replaced or repaired (through grading) when inspection
reveals that the gravel surface is no longer effectively covering the soil surface.
23
Plateau Creek Area SWMP EnCana Gas Gathering
8.0 CERTIFICATIONS
8.1 Owner/Applicant Certification
I certify under penalty of law that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry
of the person or persons who manage the system, or those persons directly responsible for
gathering the information, that the information submitted is, to the best of my knowledge
and belief, true, accurate and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for
knowing violations.
Signatures:
Name: Brenda Linster Hemdon
Title:
Date:
Owner Name: EnCana Oil & Gas (USA), Inc.
Owner Address: 2717 County Road 215
Parachute, CO 81635
Site Name and Location:
Site Name: Plateau Creek Area
Location: see Figure 1, page 6 and Figures 2a and 2b
T10S, R95W, Sections 1 — 36
Tl OS, R96W, Sections 1— 36
TIOS, R97W, Sections 1-4, 9-16, 21-28 & 33-36
T9S, R95W, Sections 19 — 36
T9S, R96W, Sections 19 — 36
T9S, R97W, Sections 19 — 36
SWMP Prepared by: Cordilleran Compliance Services, Inc.
826 21 % Road
Grand Junction, CO 81505
24
Plateau Creek Area SWMP EnCana Gas Gathering
8.2 Contractor/Subcontractor Certification
All contractors and subcontractors that will perform construction activities that could
impact storm water will be familiar with the SWMP and will sign the following
certification.
Contractor Certification
I certify under penalty of law that I understand the terms and conditions of the EnCana
Plateau Creek Area SWMP and associated CDPS General Permit that authorizes storm
water discharges associated with industrial activity from the construction sites identified
as part of this certification.
Signature:
Name:
Title:
Date:
Representing:
Company:
Address:
Address:
Phone:
Work to be Conducted:
Activity I:
Activity 2:
Activity 3:
Activity 4:
25
APPENDIX A
CDPS General Construction Storm Water Permit
STATE F C
gitifiac,IT.,:daeornei';
49T100131.040!WErFeNe !;it0OF
Dedeatect te:pheeklit'9:aticilitOleethg diaheatel, 4.00.130!thirethe 0! the people of Calece00
4,301egbeerreektet S. '.iii5rei0V'49100PM:011
Siief,Aill)ThaNA64530i; j.810.1:0•410/61)011:
0.17011‘0002" , .,. ,
4400405,10-466 80230-6928
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terrygosnex, RegEnvCord
EXCAti: 4011: 4=00.(1:!($14)1n0,,
27t7 Comity koad115:Ste,
liaraPli* CO 81635
914k85-2687
fillAtPertnOcticitackt.-NOMOMnii *Mem — Storniwater
:Certification. A& .65k4111M91
PIatau, C*&Vevelopmexit- Field
Nieskea- unfr
.70010.0APAAPg-:$0. coml.
916/210460
Local Contact;
Dear Sir or Madam
EitcloSedwiease firittareoproffheneWpermItand certification which ro7issged tcorou
ttad.er tlietelorafit Water Qttalktii cdnfrOl Act,
YOut4t,pennit'eitpfreisMn Juno30? 2007. This is a'renewil to the permit, and replaces the old one.
See page offthe.X0Ortale (the page4Mitalics)/of a.surtimaty of the cilangps,toilia:perMit.,
btu' Ce.,te9atiell.1040th030:00*** '014t;specific actions be perforineo at designated thtes.
Yon-arelksally-Obligated to comply with all tents and conditions of the penult.
. ,
Po. d cer-tiligaticm• MY°101a)T.anY ciPesItiOla&s° visic934FS' ek:slte at z
wOwtcdplio.ttato:oms/Wa/permiuunit/storinwater or -,contact Matt Cam, 4(303') 692-31
§intertiy,,,
Kathrynlialan
StoimwaterProwarit Coordinator
PPM* PAit
Aria OUALITY CONTa01-15IVISION
ie::.:RPOPOICPOSP.000040-01
tool County ilealtlitieparirgent
Malec pkiWer, treb-bnicat;SeKt,i,oes; WQGD
'Snit File
STATE OF C PAD
totouthrinzrAxermarr OF PUBLICREALTH AND Ermaormtm
ivirrta, QUALTYY CONTROL DIVISION.
7ttrrntim(3os)-60,350w
CERTIFICATION TO DISCU/WGE
ORS GENERAL,RERMYr COR -O30000
STORIVIWATER tanIARGES,ASSOCIATED WITH:CONSTRUCTION
CertificationNumber COROSB651
Dis:ctitift000440 PiSthneJtir011i. eglbc avtbtrizt es:
.Eneatta Oil A, Gas (USA) Int
LOCAL cog -um
Terry Gosney, .Reg. Coor4
Phone II 970.85-2487
terry.gositeyWitcogtepin
LEaALcG}rrAa
Try-tomey,1* Xitv..Coont
PifflOgit itla140 Tne.-
27-170.01$014041Vk 100
Pizraohiti4ranes
Phone#17001641687
100goirgy@plefinmeont:
Dots th.P CIMSITaall APOvitY: igt. gas Produdion andlor Exploration
tO -di'scharge kordrfithar from tile,racility identified as Plateau Creek nov*100:flea
- Field
Ai& is located at
330. & C1UIS
'Oar eigbralfg.:C4
1,atitnide.39111159.4oj4iuido„148/006
Mesa Canalk
to:'1%/00 Creek Sver
AnticipatUd.AtthrOlVtinse1/014001 conthauing through 12/31/2012
01112090. acres (AO acres disturbed)
Cernteation is uffeOtive"E:. 07/0/2b07 Celli;fteation Epirs: 0:6130/2012
*Sited $05.00 00.N6T Ngliv -,AprerateciWi *ink serttshottly0
,Pispj. 0122,
Page 2 of 17
Permit No. COR -030000
CDPS GENERAL PERMIT
STORM WATER DISCHARGES ASSOCIATED WITH
CONSTRUCTION ACTIVITY
AUTHORIZATION TO DISCHARGE UNDER THE
COLORADO DISCHARGE PERMIT SYSTEM
In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et seq., CRS,
1973 as amended) and the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et seq.; the
"Act"), this permit authorizes the discharge of stormwater associated with construction activities certified
under this permit, from those locations specified throughout the State of Colorado to specified waters of
the State. Such discharges shall be in accordance with the conditions of this permit.
This permit specifically authorizes the facility listed on page 1 of this permit to discharge stormwater
associated with construction activity, as of this date, in accordance with permit requirements and
conditions set forth in Parts I and 11 hereof. All discharges authorized herein shall be consistent with the
terms and conditions of this permit.
This permit and the authorization to discharge shall expire at midnight, June 30, 2007.
Issued and Signed this day of
COLORADO DEPARTMENT OF PUBLIC HEALTH ANI) ENVIRONMENT
J. David 1-Iohn, Director
Water Quality Control Division
TABLE OF CONTENTS
PART I
A. COVERAGE UNDER THIS PERMIT 3
1. Authority to Discharge 3
a) Applicable Sections 3
2. Industries Covered Under this Permit 3
a) Definitions: 3
b) Types of Activities Covered by this Permit: 3
3. Permit Coverage Without Application 3
a) Applicable Sections 3
b) Local Agency Authority 3
c) Permit Coverage Termination 4
d) Compliance with Qualifying Local Program 4
e) Full Permit Applicability 4
4. Application, Due Dates 4
a) Application Due Dates 4
b) Summary of Application 4
5. Permit Certification Procedures 4
a) Request for Additional Information 5
b) Automatic Coverage 5
c) Individual Permit Required 5
d) Temporary Coverage 5
e) General vs. Individual Permit Coverage S
f) Local Agency Authority 5
6, Inactivation Notice 5
7. Transfer of Permit 5
8. Permit Expiration Date 6
9. Individual Permit Criteria 6
B. CONTENTS OF THE STORMWATER MANAGEMENT PLAN 6
1. Site Description 7
2. Site Map 7
3. BMPs for Stormwater Pollution Prevention 7
a) Erosion and Sediment Controls 7
b) Materials Handling and Spill Prevention. 8
4. Final Stabilization and Longterm Stormwater Management 8
5. Other Controls 8
6. Inspection and Maintenance 8
C, TERMS AND CONDITIONS 8
1. General Limitations 8
2. Prohibition of Non-stormwater Discharges 9
3. Releases in Excess of Reportable Quantities 9
4, Stormwater Management Plans 9
a) Signatory Requirements 9
b) SWMP Review/Changes 9
5. Inspections 9
a) Active Sites 9
b) Completed Sites 10
c) Winter Conditions - . 10
6. Reporting 10
7, SUMP Submittal Upon Request 10
D. ADDITIONAL DEFINITIONS 10
-2a-
TABLE OF CONTENTS (cont.)
E. GENERAL REQUIREMENTS 11
1. Signatory Requirements 11
2. Retention of Records 12
PART II
A. MANAGEMENT REQUIREMENTS 12
1. Change in Discharge 12
2. Special Notifications - Definitions 12
3. Noncompliance Notification 13
4. Submission of Incorrect or Incomplete Information 13
5. Bypass 13
6. Upsets 13
7. Removed Substances 14
8. Minimization of Adverse Impact 14
9, Reduction, Loss, or Failure of Treatment Facility 14
10. Proper Operation and Maintenance 14
B. RESPONSIBILITIES 14
1. Inspections and Right to Entry 14
2. Duty to Provide Information 15
3. Transfer of Ownership or Control 15
4. Modification, Suspension, or Revocation of Permit By Division 15
5. Permit Violations 16
6. Legal Responsibilities 16
7. Severability 16
8. Renewal Application 17
9. Confidentiality 17
10. Fees 17
11. Requiring an Individual CDPS Permit 17
-2b-
PART 1
A. COVERAGE UNDERTHIS PERMIT
1. Authority to Discharge
PART I
Page 3
Permit No. COR -030000
Under this permit, construction activities, including clearing, grading, and excavation, arc granted authorization to
discharge stormwater associated with construction activities into waters of the state of Colorado.
a. Applicable Sections: This permit is made up of several parts, not all of which apply to all permittees. The
pern»ttee will be responsible for determining and then complying with the applicable sections, depending upon
whether or not a Qualifying Local Program covers the site. For sites not covered by a Qualifying Local Program,
all Parts of the permit except Part LA.3 apply. -
2, Industries Covered Under this Permit
a) Definitions:
1) Stormwater: Stormwater is precipitation -induced surface runoff.
2) Construction activity: Construction activity includes clearing, grading and excavation activities.
Construction does not include routine maintenance performed by public agencies, or their agents to maintain
original line and grade, hydraulic capacity, or original purpose of the facility.
3) Small construction activity: Stormwater discharge associated with small construction activity means the
discharge of stormwater from construction activities that result in land disturbance of equal to or greater than
one acre and less than five acres. Small construction activity also includes the disturbance of less than one
acre of total land area that is part of a larger common plan of development or sale, if the larger common plan
will ultimately disturb equal to or greater than one and less than five acres.
4) (Nan fving_L.ocal Program: This permit includes conditions that incorporate qualifying local erosion and
sediment control program (Qualifying Local Program) requirements by reference. A Qualifying Local
Program is a municipal stormwater program for stormwater discharges associated with small construction
activity that has been formally approved by the Division.
5) Other Definitions: Definitions of additional terms can be found in Part I.D. of this permit.
b) Types of Activities Covered by this Permit: This permit may authorize all new and existing discharges of
stormwater associated with construction activity. This includes stormwater discharges from areas that are
dedicated to producing earthen materials, such as soils, sand and gravel, for use at a single construction site. This
permit also includes stormwater discharges from dedicated asphalt batch plants and dedicated concrete batch
plants. This permit does not authorize the discharge of thine water or process water from such areas.
3. Permit Coverage Without Application — for small construction activities under a Qualifying Local Program only
If a construction site is within the jurisdiction of a Qualifying Local Program, the operator of the construction activity is
authorized to discharge storrnwater associated with small construction activity under this general permit without the
submittal of an application to the Division.
a) Applicable Sections: For sites covered by a Qualifying Local Program, only Parts LA.I, 1.A.2, I.A.3, I.C.I,
LC.2, I.C.3, LD and Pan 11 of this permit, with the exception of Parts 11.A.1, I1.B.3, II.B.8, and 11.13 10, apply.
b) Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit,
restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction.
PART I
Page 4
Permit No. COR -030000
A. COVERAGE UNDER THIS PERMIT (cont.)
c) Permit Coverage Termination: When a site has been finally stabilized, coverage under this permit is
automatically terminated.
d) Compliance with Qualifying Local Program: A construction site operator that has authorization to discharge
under this permit under Part I.A.3 shall comply with the requirements of the Qualifying Local Program with
jurisdiction over the site.
e) Full Permit Applicability: The Division may require any owner or operator within the jurisdiction of a
Qualifying Local Program covered under this permit to apply for and obtain coverage under the full requirements
of this permit. The owner or operator must be notified in writing that an application for full coverage is required.
When a permit certification under this permit is issued to an owner or operator that would otherwise be covered
under Part I.A.3 of this permit, the full requirements of this permit replace the requirements as per Part 1.A.3 of
this permit, upon the effective date of the permit certification. A site brought under the full requirements of this
permit must still comply with local stormwater management requirements, policies or guidelines as required by
Part I.C.I .h of this Permit.
4. Application, Due Dates
a) Application Due Dates: At least ten days prior to the commencement of construction activities, the operator of
the construction activity shall submit an application form as provided by the Division, with a certification that the
Stormwater Management Plan (SWMP) is complete.
One original completed discharge permit application shall be submitted, by mail or hand delivery, to:
Colorado Department of Public Health and Environment
Water Quality Control Division
WQCD-P-B2
4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
b) Summary of Application: The application requires, at a minimum, the following:
I) The operator's name, address, telephone number, tax payer identification number (or employer identification
number), and the status as Federal, State, private, public or other entity;
2) Name, county and location of the construction site, including the latitude and longitude to the nearest 15
seconds of the approximate center of the construction activity;
3) A brief description of the nature of the construction activity;
4) The anticipated starting date of the project and the anticipated schedule of completion
5) Estimates of the total area of the site, the area of the site that is expected to be disturbed, and the total area of
the larger common plan of development or sale to undergo disturbance;
6) The name of the receiving water(s), or the municipal separate storm sewer system and the ultimate (i.e.,
named) receiving water(s);
7) Certification that the SWMP for the construction site is complete (see Part 1.6. below); and
8) The signature of the applicant signed in accordance with Part I.E.1 of this permit.
5. Permit Certification Procedures
If the general permit is applicable to the applicant's operation, then a certification will be developed and the applicant
will be authorized to discharge stormwater under this general permit.
PART I
Page 5
Permit No. COR -030000
A. COVERAGE UNDER THIS PERMIT (cont.)
a) Request for Additional Information: The Division shall have up to ten days after receipt of the above
information to request additional data and/or deny the authorization for any particular discharge. Upon receipt of
additional information, the Division shall have an additional ten days to issue or deny authorization for the
particular discharge. (Notification of denial shall be by letter, in cases where coverage under an alternate general
permit or an individual permit is required, instead of coverage under this permit.)
b) Automatic Coverage If the applicant does not receive a request for additional information or a notification of
denial from the Division dated within ten days of receipt of the application by the Division, authorization to
discharge in accordance with the conditions of this permit shall be deemed granted.
c) Individual Permit Required: If, after evaluation of the application (or additional information, such as the
SWMP), it is found that this general permit is not applicable to the operation, then the application will be
processed as one for an individual permit. The applicant will be notified of the Division's decision to deny
certification under this genual permit. For an individual permit, additional information may be requested, and 180
days will be required to process the application and issue the permit.
d) Temporary Coverage: Notwithstanding Parts I.A.S.a-c, above, the Division reserves the right to temporarily
cover stormwater discharge from construction activity under general permits, even though individual permit
coverage may be more appropriate.
Certification of these activities under a general permit does not in any way infringe on the Division's right to
revoke that coverage and issue an individual permit or amend an existing individual permit.
e) General vs. Individual Permit Coverage: Any owner or operator authorized by this permit may request to be
excluded from the coverage of this permit by applying for an individual CDPS permit. The owner or operator
shall submit an individual application, with reasons supporting the request, to the Division at least 180 days prior
to any discharge.
0 Local Agency Authority: This permit does not pre-empt or supersede the authority of local agencies to prohibit,
restrict, or control discharges of stormwater to storm drain systems or other water courses within their jurisdiction.
6. Inactivation Notice
When a site has been finally stabilized in accordance with the SWMP, the operator of the facility must submit an
Inactivation Notice that is signed in accordance with Part 1.E. L of this permit. The Inactivation Notice form is available
from the Division and includes:
a) Permit certification number;
b) The permittee's name, address, telephone number;
c) Name, location, and county for the construction site for which the application is being submitted.
d) Certification that the site has been finally stabilized, and a description of the final stabilization method(s).
An inactivation forst may not be required for small construction activities if application was made for coverage with a
completion date less than 12 months from the start of construction activity. In such cases, permit certification may be
authorized for a predetermined period from 3 to 12 months. The permit certification will include the automatic
expiration date for permit coverage. If permit coverage beyond that date is needed (i.e., the site has not been finally
stabilized), the permittee must submit an extension request form to the Division at least 10 days prior to the expiration
date.
7. Transfer of Permit
When responsibility for stormwater discharges at a construction site changes from one individual to another, the
permittee shall submit a completed Notice of Transfer and Acceptance of Terms of a Construction General Stormwater
Discharge Pemtit Certification that is signed in accordance with Part 1.E.1. of this permit. The Notice of Transfer form is
available from the Division and includes:
PART I
Page 6
Permit No. COR -030000
A. COVERAGE DNDER THIS PERMIT (cont.)
a) Permit certification number.
b) Name, location, and county for the construction site for which the application is being submitted.
c) The current permittee's name, address, telephone number and the status as Federal, State, private, public or other
entity.
d) The new permittee's name, address and telephone number and the status as Federal, State, private, public or other
entity.
e) Certification that the new permittee has reviewed the permit and SWMP and accepts responsibility, coverage and
liability for the permit.
1) Effective date of transfer.
If the new responsible party will not complete the transfer form, the permit may be inactivated if the permittee has no
legal responsibility, through ownership or contract, for the construction activities at the site. In this case, the new
operator would he required to obtain permit coverage separately.
8. Permit Expiration Date
Authorization to discharge under this general permit shall expire on June 30, 2007. The Division must evaluate and
reissue this general permit at least once every five years and must recertify the applicant's authority to discharge under
the general permit at such time. Any permittee desiring continued coverage under the general permit must reapply by
March 31, 2007. The Division will determine if the applicant may continue to operate under the terms of the general
permit. An individual permit will be required for any facility not reauthorized to discharge under the reissued general
permit.
9. Individual Permit Criteria
Aside from the activity type, the Division may use other criteria in evaluating whether an individual permit is required
instead of this general permit. This information may come from the application, SWMP, or additional information as
requested by the Division, and includes, but is not limited to, the following:
a) the quality of the receiving waters (i.e., the presence of downstream drinking water intakes or a high quality
fishery, or for preservation of high quality water);
b) the size of the construction site;
c) evidence of noncompliance under a previous permit for the operation;
d) the use of chemicals within the stormwater system.
In addition, an individual permit may be required when the Division has shown or has reason to suspect that the
stormwater discharge may contribute to a violation of a. water quality standard.
13. CONTENTS OF THE STORMWATER MANAGEMENT PLAN
The SWMP shall be prepared in accordance with gond engineering, hydrologic and pollution control practices. (The SWMP
need not be prepared by a registered engineer.) The main objective of the plan shall be to identify Best Management Practices
(BMPs) which when implemented will meet the terms and conditions of this permit (see Part 1.C., below).
The plan shall identify potential sources of pollution (including sediment) which may reasonably be expected to affect the
quality of stormwater discharges associated with construction activity from the facility. In addition, the plan shall describe and
ensure the implementation of BMPs which will be used to reduce the pollutants in stormwater discharges associated with
construction activity. Construction operations must implementthe provisions of the SWMP required under this part as
a condition of this permit.
The SWMP shall include the following items, at a minimum:
PART I
Page 7
Permit No. COR -030000
B. CONTENTS OP THE STORMWATER MANAGEMENT PLAN (cont.)
1. Site Description
Each plan shall provide a description of the following:
a) A description of the construction activity.
b) The proposed sequence for major activities.
c) Estimates of the total area of the site, and the area of the site that is expected to undergo clearing, excavation or
grading.
d) An estimate of the runoff coefficient of the site before and after construction activities are completed and any
existing data describing the soil, soil erosion potential or the quality of any discharge from the site.
e) A description of the existing vegetation at the site and an estimate of the percent vegetative ground cover.
t) The location and description of any other potential pollution sources, such as vehicle fueling, storage of fertilizers
or chemicals, ctc. -
g) The location and description of any anticipated non-stormwater components of the discharge, such as springs and
landscape irrigation return flow.
h) The name of the receiving water(s) and the size, type and location of any outfall or, if the discharge is to a
municipal separate storm sewer, the name of that system, the location of the storm sewer discharge, and the
ultimate receiving water(s).
2. Site Map
Each plan shall provide a generalized site map or maps which indicate:
- construction site boundaries
- all areas of soil disturbance
- areas of cut and fill
- areas used for storage of building materials, soils or wastes
- location of any dedicated asphalt or concrete batch plants
- location of major erosion control facilities or structures
- springs, streams, wetlands and other surface waters
- boundaries of 100 -year flood plains, if determined.
3, BMPs for Stormwater Pollution Prevention
The plan shall include a narrative description of appropriate controls and measures that will be implemented before and
during construction activities at the facility.
The plan shall clearly describe the relationship between the phases of construction and the implementation and
maintenance of controls and measures. For example, which controls will be implemented during each of the following
stages of construction: clearing and grubbing necessary for perimeter controls, initiation of perimeter controls, remaining
clearing and grubbing, road grading, storm drain installation, final grading, stabilization, and removal of control
measures,
The description of controls shall address the following minimum components:
a) Erosion and Sediment Controls.
1) Structural Practices. A description of structural site management practices which will minimize erosion and
sediment transport. Practices may include, but are not limited to: straw bales, silt fences, earth dikes,
drainage swales, sediment traps, subsurface drains, pipe slope drains, inlet protection, outlet protection,
gabions, and temporary or permanent sediment basins.
2) Non -Structural Practices. A description of interim and permanent stabilization practices, including site-
specific scheduling of the implementation of the practices. Site plans should ensure that existing vegetation
is preserved where possible and that disturbed areas are stabilized. Non-structural practices may include, but
are not limited to: temporary seeding, permanent seeding, mulching, geotexiiles, sod stabilization, vegetative
buffer strips, protection of trees, and preservation of mature vegetation.
PART I
Page 8
Permit No. COR -030000
B. CONTENTS OF THE STORM WATER MANAGEMENT PLAN (cont.)
b) Materials Handling and Spill Prevention.
The SWMP shall identify any procedures or significant materials (see definitions at Part 1.D.) handled at the site
that could contribute pollutants to runoff. These could include sources such as: exposed storage of building
materials, fertilizers or chemicals; waste piles; and equipment maintenance or fueling procedures. Areas or
procedures where potential spills can occur shall have spill prevention and response procedures identified.
Measures to control stormwater pollution from dedicated concrete batch plants or dedicated asphalt batch plants
covered by this certification, must be identified in the SWMP.
4. Final Stabilization and Loneterm Stormwater Management
The plan shall include a description of the measures used to achieve final stabilization and measures to control pollutants
in stormwater discharges that will occur after construction operations have been completed.
Final stabilization is reached when all soil disturbing activities at the site have been completed, and uniform vegetative
cover has been established with a density of at least 70 percent of pre -disturbance levels, or equivalent permanent,
physical erosion reduction methods have been employed.
For purposes of this permit, establishment of a vegetative cover capable of providing erosion control equivalent to pre-
existing conditions at the site can be considered final stabilization. The permittee will be responsible for providing to the
Division the documentation to make this comparison. The Division may, after consultation with the permittee and upon
good cause, amend the final stabilization criteria for specific operations.
5. Other Controls
The plan shall include a description of other measures to control pollutants in stormwater discharges, including plans for
waste disposal and limiting off-site soil tracking.
6. Inspection and Maintenance
The plan shall include a description of procedures to inspect and maintain in good and effective operating condition the
vegetation, erosion and sediment control measures and other protective measures identified in the SWMP.
C. TERMS AND CONDITIONS
1. General Limitations
The following limitations shall apply to all discharges covered by this permit:
a) Stornrwater discharges from construction activities shall not cause or threaten to cause pollution, contamination or
degradation of State waters.
b) Concrete wash water shall not be discharged to state waters or to storm sewer systems.
c) Bulk storage structures for petroleum products and other chemicals shall have adequate protection so as to contain
all spills and prevent any spilled material from entering State waters.
d) No chemicals are to be added to the discharge unless permission for the use of a specific chemical is granted by
the Division. In granting the use of such chemicals. special conditions and monitoring may be addressed by
separate letter.
e) The Division reserves the right to require sampling and testing, on a case-by-case basis, in the event that there is
reason to suspect that compliance with the SW MP is a problem, or to measure the effectiveness of the BMPs in
removing pollutants in the effluent. Such monitoring may include Whole Effluent Toxicity testing.
PART I
Page 9
Permit No. COR -030000
C. TERMS AND CONDITIONS (cont)
I) All wastes composed of building materials must be removed from the site for disposal in licensed disposal
facilities. No building material wastes or unused building materials shall be buried, dumped, or discharged at the
site.
g) Off-site vehicle tracking of sediments shall be minimized.
h) All dischargers must comply with the lawful requirements of municipalities, counties, drainage districts and other
local agencies regarding any discharges of stormwater to storm drain systems or other water courses under their
jurisdiction, including applicable requirements in municipal stormwater management programs developed to
comply with CDPS permits. Dischargers must comply with local stormwater management requirements, policies
or guidelines including erosion and sediment control.
2. Prohibition of Non-$tormwater Discharges
a) Except as provided in paragraph b, below, all discharges covered by this permit shall be composed entirely of
stormwater. Discharges of material other than stormwater must be addressed in a separate CDPS permit issued
for that discharge.
b) Discharges from the following sources that are combined with stormwater discharges associated with construction
activity may be authorized by this permit, provided that the non-stormwater component of the discharge is
identified in the SWMP MP (see Part !Big of this permit):
- fire fighting activities - landscape irrigation return flow
- springs
3. Releases in Excess of Reportable Quantities
This permit does not relieve the permittee of the reporting requirements of 40 CFR 110, 40 CFR 117 or 40 CFR 302.
Any discharge of hazardous material must be handled in accordance with the Division's Notification Requirements (see
Part 11.A.3 of the permit).
4. Stormwater Management Plans
Prior to commencement of construction, the stormwater management plan (SWMP) shall be implemented for the
construction site covered by this permiL
a) Signatory Requirements: The plan shall be signed in accordance with Part LE.1., with one retained on site.
b) SWMP Review/Changes: The permittee shall amend the plan whenever there is a significant change in design,
construction, operation, or maintenance, which has a significant effect on the potential for the discharge of
pollutants to the waters of the State, or if the SWMP proves to be ineffective in achieving the general objectives of
controlling pollutants in stormwater discharges associated with construction activity.
5. Inspections
a) Active Sites - For sites where construction has not been completed, the permittee shall make a thorough inspection
of their stormwater management system at least every 14 days and after any precipitation or snowmelt event that
causes surface erosion.
1) The construction site perimeter, disturbed areas and areas used for material storage that are exposed to
precipitation shall be inspected for evidence of, or the potential for, pollutants entering the drainage system.
Erosion and sediment control measures identified in the SWMP shall be observed to ensure that they are
operating correctly.
PART I
Page 10
Permit No. COR -030000
C. TERMS AND CONDITIONS (cont.)
2) Based on the results of the inspection, the description of potential pollutant sources, and the pollution
prevention and control measures that are identified in the SWMP shall be revised and modified as appropriate
as soon as practicable after such inspection. Modifications to control measures shall be implemented in a
timely manner, but in no case more than 7 calendar days after the inspection.
3) The operator shall keep a record of inspections. Any incidence of non-compliance, such as uncontrolled
releases of mud or muddy water or measurable quantities of sediment found off the site, shall be recorded
with a brief explanation as to the measures taken to prevent future violations, as well as any measure taken to
clean up the sediment that has left the site. After adequate measures have been taken to correct any problems,
or where a report does not identify any incidents of non-compliance, the report shall contain a signed
certification indicating the site is in compliance. This record shall be made available to the Division upon
request.
b) Completed Sites - For sites where all construction activities are completed but final stabilization has not been
achieved due to a vegetative cover that has been planted but has not become established, the permittee shall make
a thorough inspection of their stormwater management system at least once every month. When site conditions
make this schedule impractical, permittees may petition the Division to grant an alternate inspection schedule.
These inspections must be conducted in accordance with paragraphs 1), 2), and 3) of Part I.C.5.a. above,
c) Winter Conditions • Inspections, as described above in a) and b), will not be required at sites where snow cover
exists over the entire site for an extended period, and melting conditions do not exist. This exemption is applicable
only during the period where melting conditions do not exist. Regular inspections, as described above, are
required at all other times.
6. Reporting
No regular reporting requirements are included in this permit; however,. the Division reserves the right to request that a
copy of the inspection reports be submitted.
7. SWMP Submittal Upon Request
Upon request, the permittee shall submit a copy of the SWMP to the Division, EPA or any local agency in charge of
approving sediment and erosion plans, grading plans or stormwater management plans.
All SWMPs required under this permit are considered reports that shall be available to the public under Section 308(b) of
the CWA. The owner or operator of a facility with stormwater discharges covered by this permit shall make plans
available to members of the public upon request, unless the SWMP has been submitted to the Division. However, the
permittee may claim any portion of a SWMP as confidential in accordance with 40 CFR Part 2.
D. ADDITIONAL DEFINITIONS
For the purposes of this permit:
1. BAT and BCT: (Best Available Technology and Best Conventional 'technology) Technology based federal water
quality requirements covered under 40 CFR subchapter N.
2. Best management practices (BMPs): schedules of activities, prohibitions of practices, maintenance procedures, and
other management practices to prevent or reduce the pollution of waters of the State. BMPs also include treatment
requirements, operating procedures, and practices to control site runoff, spillage or leaks, waste disposal, or drainage
from material storage.
3. Dedicated asphalt plants and concrete plants: portable asphalt plants and concrete plants that are located on or
adjacent to a construction site and that provide materials only to that specific construction site.
PART I
Page 11
Permit No. COR -030000
D. ADDITIONAL DEFINITIONS (cont.)
4. Final stabilization: when all soil disturbing activities at the site have been completed, and uniform vegetative cover has
been established with a density of at least 70 percent of pre -disturbance levels, or equivalent permanent, physical erosion
reduction methods have been employed. For purposes of this permit, establishment ofa vegetative cover capable of
providing erosion control equivalent to pre-existing conditions at the site will be considered final stabilization.
5. Municipal storm sewer system: a conveyance or system of conveyances (including: roads with drainage systems,
municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains), owned or operated by a
State, city, town, county, district, or other public body (created by state law), having jurisdiction over disposal of sewage,
industrial waste, stormwater, or other wastes; designed or used for collecting or conveying stormwater.
6. Operator: the individual who has day-to-day supervision and control of activities occurring at the construction site. This
can be the owner, the developer, the general contractor or the agent of one of these parties, in some circumstances. It is
anticipated that at different phases ofa construction project, different types of parties may satisfy the definition of
'operator' and that the permit may be transferred as the roles change.
7. Outfall: a point source at the point where stormwater leaves the construction site and discharges to a receiving water or
a stormwater collection system.
g. Part ofa larger common plan of development or sale: a contiguous arca where multiple separate and distinct
construction activities may be taking place at different times on different schedules under one plan.
9. Point source: any discernible, confined and discrete conveyance from which pollutants are or may be discharged. Point
source discharges of stormwater result from structures which increase the imperviousness of the ground which acts to
collect runoff, with runoff being conveyed along the resulting drainage or grading pattern.
10. Process water: any water which during manufacturing or processing, comes into contact with or results from the
production of any mw material, intermediate product, finished product, by product or waste product. This definition
includes mine drainage.
11. Receiving Water: any water of the State of Colorado into which stormwater related to construction activities discharges.
12. Runoff coefficient: the fraction of total rainfall that will appear as runoff.
13. Significant Materials include but are not limited to: raw materials; fuels; materials such as metallic products; hazardous
substances designated under section 101(14) of CERCLA; any chemical the facility is required to report pursuant to
section 313 of title III of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that have the
potential to he released with stormwater discharge.
14. Stormwater: precipitation -induced surface runoff,
15. Waters of the state of Colorado: any and all surface waters that are contained in or flow in or through the state of
Colorado. This definition includes all water courses, even if they are usually dry.
E. GENERAL REQUIREMENTS
I. Signatory Requirements
a) All reports required for submittal shall be signed and certified for accuracy by the permittee in accordance with the
following criteria:
I) In the case of corporations, by a principal executive officer of at least the level of vice-president or his or her
duly authorized representative, if such representative is responsible for the overall operation of the facility
from which the discharge described in the form originates;
2) In the ease ofa partnership, by a general partner;
PART I
Page 12
Permit No. COR -030000
E. GENERAL REQUIREMENTS (cont.)
3) In the case of a sole proprietorship, by the proprietor;
4) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking
elected official, or other duly authorized employee.
b) Changes to authorization. Ilan authorization under paragraph a) of this section is no longer accurate because a
different individual or position has responsibility for the overall operation of the facility, a new authorization
satisfying the requirements of paragraph a) of this section must be submitted to the Division, prior to or together
with any reports, information, or applications to be signed by an authorized representative.
c) Certification. Any person signing a document under paragraph a) of this section shall make the following
certification:
"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 or persons who manage the system,
or those persons directly responsible for gathering the information, the information submitted is, to the best of
my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations."
2. Retention of Records
a) The permittee shall retain copies of the SWMP and all reports required by this permit and records of all data used
to complete the application to be covered by this permit, for a period of at least three years from the date that the
site is finally stabilized.
b) The permittee shall retain a copy of the SWMP required by this permit at the construction site from the date of
project initiation to the date of final stabilization, unless another location, specified by the permittee, is approved
by the Division.
PART Il
A. MANAGEMENT REQUIREMENTS
I. Chante in Discharge
The permittee shall inform the Division (Permits Unit) in writing of any intent to significantly change activities from
those indicated in the permit application (this does not include changes to the SWMP). Upon request, the permittee shall
furnish the Division with such plans and specifications which the Division deems reasonably necessary to evaluate the
effect on the discharge and receiving stream. The SWMP shall be updated within 30 days of the changes.
The permittee shall submit this notice to the Division within two weeks after making a determination to perform the type
of activity referred to in the preceding paragraph.
Any discharge to the waters of the State from a point source other than specifically authorized by this permit is
prohibited.
2. Special Notifications - Definitions
a) Spill: An unintentional release of solid or liquid material which may cause pollution of state waters.
b) Upset: An exceptional incident in which there is unintentional and temporary noncompliance with permit effluent
limitations because of factors beyond the reasonable control of the permittee. An upset does not include
noncompliance to the extent caused by operational cror, improperly designed treatment facilities, inadequate
treatment facilities, lack of preventative maintenance, or careless or improper operation.
PART II
Page 13
Permit No. COR -030000
A. MANAGEMENT REQUIREMENTS (cont.)
3. Noncompliance Notification
a) lf, for any reason, the permittee does not comply with or will be unable to comply with any permit limitations,
standards or permit requirements specified in this permit, the permittee shall, at a minimum, provide the Water
Quality Control Division and EPA with the following information:
I) A description of the discharge and cause of noncompliance;
2) The period of noncompliance, including exactdates and times and/or the anticipated time when the discharge
will return to compliance; and
3) Steps being taken to reduce, eliminate, and prevent recurrence of the noncomplying discharge.
b) The permittee shall report the following instances of noncompliance orally within twenty-four (24) hours from the
time the permittee becomes aware of the noncompliance, and shall mail to the Division a written report within five
(5) days after becoming aware of the noncompliance (unless otherwise specified by the Division):
I) Any instance of noncompliance which may endanger health or the environment;
2) Any spill or discharge of oil or other substance which may cause pollution of the waters of the state_
c) The permittee shall report all other instances of non-compliance to the Division within 30 days. The reports shall
contain the information listed in sub -paragraph (a) of this section.
4. Submission of Incorrect or Incomplete Information
Where the permittee failed to submit any relevant facts in a permit application, or submitted incorrect information in a
permit application or report to the Division, the pennittee shall promptly submit the relevant application information
which was not submitted or any additional information needed to correct any erroneous information previously
submitted.
5. Bypass
The bypass of treatment facilities is generally prohibited.
6. Upsets
a) Effect of an Upset
An upset constitutes an affirmative defense to an action brought for noncompliance with permit limitations and
requirements if the requirements of paragraph b of this section are met. (No determination made during
administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance,
is final administrative action subject to judicial review.)
b) Conditions Necessary for a Demonstration of Upset
A permittee who wishes to establish the affirmative defense of upset shall demonstrate through properly signed
contemporaneous operating logs, or other relevant evidence that:
1) An upset occurred and that the permittee can identify the specific cause(s) of the upset;
2) The permitted facility was at the time being properly operated;
3) The permittee submitted notice of the upset as required in Part II.A.3. of this permit (24-hour notice); and
PART II
Page 14
Permit No. COR -030000
A. MANAGEMENT REQUIREMENTS (cont)
4) The permittee complied with any remedial measures required under Section 122.7(d) of the federal
regulations.
c) Burden of Proof
In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of
proof.
7. Removed Substances
Solids, sludges, or other pollutants removed in the course of treatment or control of wastewaters shall be properly
disposed of in a manner such as to prevent any pollutant from such materials from entering waters of the State.
8. Minimization of Adverse Impact
The permittee shall take all reasonable steps to minimize any adverse impact to waters of the State resulting from
noncompliance with any effluent limitations specified in this permit, including such accelerated or additional monitoring
as necessary to determine the nature and impact of the noncomplying discharge.
9. Reduction, Loss, or Failure of Treatment Facility
The pemrittee has the duty to halt or reduce any activity if necessary to maintain compliance with the permit
requirements. Upon reduction, loss, or failure of the treatment facility, the permittee shall, to the extent necessary to
maintain compliance with its permit, control production, or all discharges, or both until the facility is restored or an
alternative method of treatment is provided.
It shall not be a defense for a permittee in an enforcement action that it would be necessary to halt or reduce the
permitted activity in order to maintain compliance with the conditions of this permit.
10. Proper Operation and Maintenance
The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and
related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this
permit. Proper operation and maintenance includes effective performance, adequate funding, adequate operator staffing
and training, and adequate laboratory and process controls, including appropriate quality assurance procedures. This
provision requires the operation of back-up or auxiliary facilities or similar systems only when necessary to achieve
compliance with the conditions of the permit.
B. RESPONSIBILITIES
1. Inspections and Right to Entry
The permittee shall allow the Director of the State Water Quality Control Division, the EPA Regional Administrator,
and/or their authorized representative, upon the presentation of credentials:
a) To enter upon the permittee's premises where a regulated facility or activity is located or in which any records are
required to he kept under the terms and conditions of this permit;
b) At reasonable times to have access to and copy any records required to be kept under the terms and conditions of
this permit and to inspect any monitoring equipment or monitoring method required in the permit; and
c) To enter upon the permittee's premises to investigate, within reason, any actual, suspected, or potential source of
water pollution, or any violation of the Colorado Water Quality Control Act. The investigation may include, but is
not limited to, the following: sampling of any discharge and/or process waters, the taking of photographs,
interviewing permittee staff on alleged violations, and access to any and all facilities or areas within the permittee's
premises that may have any effect on the discharge, permit, or alleged violation.
B. RESPONSIBILITIES (cont.)
PART II
Page 15
Permit No. COR -030000
2. Duty to Provide information
The permittee shall furnish to the Division, within a reasonable time, any information which the Division may request to
determine whether cause exists for modifying, revoking and reissuing, or inactivating coverage under this permit, or to
determine compliance with this permit. The permittee shall also furnish to the Division, upon request, copies of records
required to be kept by this permit.
3. Transfer of Ownership or Control
Certification under this permit may be transferred to a new permittee if:
a) The current permittee notifies the Division in writing when the transfer is desired; and
b) The notice includes a written agreement between the existing and new permittees containing a specific date for
transfer of permit responsibility, coverage and liability between them; and
c) The current permittee has met all fee requirements of the State Discharge Permit System Regulations, Sect ion
61.15.
4, Modification, Suspension, or Revocation of Permit By Division
All permit modification, inactivation or revocation and reissuance actions shall be subject to the requirements of the State
Discharge Permit System Regulations, Sections 61.5(2), 61.5(3), 61.7 and 61.15, 5 C.C.R.
1002-61, except for minor modifications,
a) This permit, and certification under this permit, may be modified, suspended, or revoked in whole or in part during
its term for reasons determined by the Division including, but not limited to, the following:
I) Violation of any terms or conditions of the permit;
2) Obtaining a permit by misrepresentation or failing to disclose any fact which is material to the granting or
denial of a permit or to the establishment of terms or conditions of the permit;
3) Materially false or inaccurate statements or information in the application for the permit;
4) Promulgation of toxic effluent standards or prohibitions (including any schedule of compliance specified in
such effluent standard or prohibition) which are established under Section 307 of the Clean Water Act, where
such a toxic pollutant is present in the discharge and such standard or prohibition is more stringent than any
limitation for such pollutant in this permit.
b) This permit, or certification under this permit, may be modified in whole or in part due to a change in any
condition that requires either a temporary or permanent reduction or elimination of the permitted discharge, such
as:
1) Promulgation of Water Quality Standards applicable to waters affected by the permitted discharge; or
2) Effluent limitations or other requirements applicable pursuant to the State Act or federal requirements; or
3) Control regulations promulgated; or
4) Data submitted pursuant to Part 1.B or Part LC.1 indicates a potential for violation of adopted Water Quality
Standards or stream classifications.
PART II
Page 16
Permit No_ COR -030000
B. RESPONSIBILITIES (cont.)
c) This permit, or certification under this permit, may be modified in whole or in part to include new effluent
limitations and other appropriate conditions where data submitted pursuant to Part I indicates that such effluent
limitations and conditions are necessary lo ensure compliance with applicable water quality standards and
protection of classified uses.
d) At the request of the permittee, the Division may modify or inactivate certification under this permit if the
following conditions are met:
I) In the case of inactivation, the permittee notifies the Division of its intent to inactivate the certification, and
certifies that the site has been finally stabilized;
2) In the case of inactivation, the permittee has ceased any and all discharges to state waters and demonstrates to
the Division there is no probability of further uncontrolled discharge(s) which may affect waters of the State.
3) The Division finds that the permittee has shown reasonable grounds consistent with the Federal and State
statutes and regulations for such modification, amendment or inactivation;
4) Fee requirements of Section 61.15 of State Discharge Permit System Regulations have been met; and
5) Requirements of public notice have been met.
For small construction sites covered by a Qualifying Local Program, coverage under this permit is automatically
terminated when a site has been finally stabilized.
5. Pcrmit Violations
Failure to comply with any terms and/or conditions of this permit shall be a violation of this permit.
Dischargers of stormwater associated with industrial activity, as defined in the EPA Stormwater Regulation (40 CFR
1 22.26(b)(14), which do not obtain coverage under this or other Colorado general permits, or under an individual CDPS
permit regulating industrial stormwater, will be in violation of the federal Clean Water Act and the Colorado Water
Quality Control Act, 25-8-101. Failure to comply with CDPS permit requirements will also constitute a violation. Civil
penalties for such violations may be up to $10,000 per day, and criminal pollution of state waters is punishable by fines
of up to $25,000 per day.
6. Lent Responsibilities
The issuance of this permit does not convey any property or water rights in either real or personal property, or stream
flows, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights,
nor any infringement of Federal, State or local laws or regulations.
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any
responsibilities, liabilities, or penalties to which the permittee is or may be subject to under Section 311 (Oil and
Hazardous Substance Liability) of the Clean Water Act.
7. Severability
The provisions of this permit are severable. If any provisions of this permit, or the application of any provision of this
permit to any circumstance, is held invalid, the application of such provision to other circumstances and the application
of the remainder of this permit shall not be affected.
PART II
Page 17
Permit No. COR -030000
B. RESPONSIBILITIES (cont)
8. Renewal Application
If the permittee desires to continue to discharge, a permit renewal application shall be submitted at least ninety (90) days
before this permit expires. If the permittee anticipates that there will be no discharge after the expiration date of this
permit, the Division should be promptly notified so that it can inactivate the certification in accordance with Part
11.13.4.d.
9. Confidentiality
Except for data determined to be confidential under Section 308 of the Federal Clean Water Act and Regulations for the
State Discharge Permit System 61.5(4), all reports prepared in accordance with the terms of this permit shall be
available for public inspection at the offices of the Division. The permittee must state what is confidential at the time of
submittal.
Any information relating to any secret process, method of manufacture or production, or sales or marketing data which
has been declared confidential by the permittee, and which may he acquired, ascertained, or discovered, whether in any
sampling investigation, emergency investigation, or otherwise, shall not be publicly disclosed by any member, officer, or
employee of the Commission or the Division, but shall be kept confidential. Any person seeking to invoke the protection
of this section shall bear the burden of proving its applicability. This section shall never be interpreted as preventing full
disclosure of effluent data.
10. Fees
The permittee is required to submit payment of an annual fee as set forth in the Water Quality Control Act. Failure to
submit the required fee when due and payable is a violation of the permit and will result in enforcement action pursuant
to Section 25-8-601 et. seq., C.R.S. 1973 as amended.
1 I. Rcuuirina an Individual CDPS Permit
1'he Director may require any owner or operator covered under this permit to apply for and obtain an individual CDPS
permit if:
a) The discharger is not in compliance with the conditions of this general permit;
b) Conditions or standards have changed so that the discharge no longer qualifies for a general permit; or
c) Data become available which indicate water quality standards may be violated.
The owner or operator must be notified in writing that an application for an individual CDPS permit is required. When
an individual CDPS permit is issued to an owner or operator otherwise covered under this General Permit, the
applicability of the general permit to that owner or operator is automatically inactivated upon the effective date of the
individual CDPS permit.
APPENDIX B
Typical Storm Water BMP Details
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ROCK CHECK DAM
STRAWBAB GK ki
mFtas, fram too Control, Sed mentConttol anaStormwater Ntanagetnent on Cor strvctio i Sites and
Urban AMCAlabamaS4itandWater,Conser9atonCommittee.
DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES
STRAW BALE BARRIER
Definition
A temporary sediment barrier consisting of a row of entrenched and anchored straw bales.
Purposes
1. To intercept and detain small amounts of sediment from disturbed areas of limited extent
in order to reduce sediment In runoff from leaving the site.
2. To decrease the velocity of sheet flows from hilislope areas
Wood or Steel Fence Post
(Rebar not allowed)
Binding Wire
or Twine
Staked and Entrenched
Straw Bale
Compacted Soli to
Prevent Piping
Filtered Runoff
Sediment Laden
Runoff
12" Mln.
From: Virginia Soil and Water Conservation Commission, 1985
FIGURE C-12
Staw Bale Barriers
From uDF=co, 2GL'1`f
C-42
9-1-99
Urban Drainage and Flood Control District
DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES
From: Virginia Soil and Water Conservation Commission, 1985
FIGURE C -12A
Staw Bale Barrier Installation
F{Om 0Dre'', z wit
9-1-99
Urban Drainage and Flood Control District
C-43
DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES
CHECK DAM
Definition
Small temporary dam constructed across a awale or drainage ditch.
Purposes
To reduce the velocity of stormwater flows and erosion of the swale or ditch.
L = The distance such that points
A and B are of equal elevation.
From: Virginia Soil and Water Conservation Commission, 1985
'Ewen UOFGtr2Wt
C -so
FIGURE C-21
Check Dam
9-1-99
Urban Drainage and Rood Control District
American a
Excelsior
CompanyMOP
Earth Science Division
Prov) Participant in MPEP $ Proud Member of.
CCM
xk„ataaI Erosion Control Association
CURLEX® EROSION CONTROL BLANKETS
INSTALLATION GUIDELINES
Before installing Curlex blankets, the seedbed shall be inspected by the Owner's
Representative to ensure it has been properly compacted and fine graded to remove
any existing rills. It shall be free of obstructions, such as tree roots, projections such as
stones, and other foreign objects. The contractor shall proceed when satisfactory
conditions are present. After the area has been properly shaped, seeded, fertilized, and
compacted, Curiex blanket's outside tape shall be removed. Next, locate the start of the
roll, making sure the roll is facing toward the area to be covered, and then roll out the
blanket. The blanket shall be rolled out flat, even, and smooth without stretching the
material then anchored to the subgrade.
Slopes: It is recommended the blankets be installed vertically on the slope; however, on
short slopes it may be more practical to install horizontally across the width of the
application. If more than one width is required, simply abut the edges together and
secure the blankets with a common row of staples. Overlapping of Curlex blankets is
not required. Cortex blankets shall be trenched at the head of the slope it the blanket
cannot be extended three feet over the slope crest or if overland flow is anticipated from
upslope areas.
Channels: Curlex blankets shall be centered to offset a seam in the middle of the
waterway. They shall be installed in the same direction as the water flow. The adjoining
blankets shall be installed away from the center of channel and overlapped. Curlex
blanket installation should continue up the side slopes and three feet over the crest to
the flat of the final grade. Flanks exposed to runoff, or sheet flow, must be protected by
a check slot or trenched. Curlex blankets shall be trenched at the start of the channel
and anchored using a staggered staple pattern at end of roll overlaps and end of roll
terminations.
Disclaimer: Curies is a system for erosion control and revegetation on slopes and channels. American
Excelsior Company (AEC) believes that the information contained herein to be reliable and accurate for use
in erosion control and re -vegetation applications. However, since physical conditions vary from job site to
job site and even within a given job site, AEC makes no performance guarantees and assumes no
obligation or liability for the reliability or accuracy of Information contained herein for the results, safety, or
suitability of using Curlex, or for damages occurring in connection with the installation of any erosion control
product whether or not made by AEC or its affiliates, except as separately and specifically made In writing.
These guidelines are subject to change without notice.
850 Avenue 11 East *Arlington, Texas 76011
Phone 1 -800 -777 -SOIL *Fax 817-385-3585 * www.Curlex.com
W0104R0205
(
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342
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American a
Excelsior
Company 61111..
Earth Science Division
Proud Participant in MPEP & Proud Member of:
ClaD
ha alimal Erosion Coned an
.............
6'
2'
2'
Curlex®Staple Pattern Guide
For 8' wide Curlex Erosion Control Blankets
Adjust horizontal staple spacing for 4' wide Curlex Erosion Control Blankets
Slope
5 4:1
5 3:1
5 2:1
>2:151:1
Low Flow Channel
High Flow Channel
Staple Pattern
A
8
C
D
D
E -
6'
4'
0
A
0.7 Staples 'd2
2'
2.9-3.2 Staples/yd'
t.5'
1.5'
0 =Staple Placement
15' 4'
3'
O
0
B
1.4 Stapleslyda
2'
l-1-11
3.2-4.1 Staples/ye
2.3-2S Stapies/yd'
Note:
' For Cohesive Soil use a 6"x1 "x6"
11 gauge wire staple and
for Non -Cohesive Soil use a
8"x2"x8" 11 gauge wire staple.
' Adjust staple pattern so staples
are placed in critical channel
points. (e.g. slope interface,
channel bottom)
Example of critical channel points
O
Critical Points are circled
850 Avenue H East * Arlington, Texas 76011
Phone 1. -800 -777 -SOIL * Fax 817-385-3585 '" www.Curlex.com
W0105R0305
DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES
SILT FENCE INSTALLATION
STEEL OR nor NYOOD POST
(ANCHORED TO FABRIC)
NOTE: EROSION CONTROL MEASURES
SHALL BE MAINTAINED UNTIL
LANDSCAPING IS COMPLETED,
ORAS DIRECTED BY LOCAL
JURISDICTION
FABRIC MATERIAL
! (ACHORED IN TRENCH)
4"x4" TRENCH
COMPACTED
i / BACKFILL
t..,r FLOW
SECTION
NTS-
DETAIL
S
DETAIL
SILT FENCE EROSION BARRIER
Details provided to District by the City of Broomfield. Colorado
Fro.+-. Urj, A F7ia:r..oWL. a.wt
plead Co -14,o1 17istitce
Vol. --e- 3 13eeF/tanve..,.,.•i
frrcaceSJ Consfrvcry„,OM?,
Aro 2Ct'l'r 69Dre O, ZC27Y,
C-44
FIGURE C-13
Silt Fence Erosion Barrier
9-1-99
Urban Drainage and Flood Control District
Page 1 of l
STRAK' RO.ts [JUST R.': P/..A;"/
ALONG SLOPE CONTOURS
J
N
(3-efre)
3 4'
`, (',I.2rn 1
(i' AD.4i NT ry tt5 SHALL
i/OHIL7 ABUTel
-i
i
v
SPAC L^L0 D P(Za_;S
ON SNL TYPE ,WO
syoP,r 5:1fFPALCSS
-- Di.tI NT ORLFANit' .uA/7Eh;
.<N5 N,/TtVK .SFEDS ARE
CFPTUREE, .DENIM THE ROM,£
v SF,4
1�
-- 8"-- Os OM
/? --256»m-,?
•
PLOP'_
STR4.41 ROLL INSTAL LAMA' R(X:LAT TN(
+A4TLb:NT AND SI:WIL 5'14/ iW p;` LHE -NOL_ AJ
A TA&VCLI. J`--,'.- (25- I2Sin m) OPE P, DU,' ON
COMOUR RUNOFF LIUsT NOT et ALIO WED 70 RUW
L%VE:Y OF ARQUNQ ,ROIL,
(25 x 25mm)
NOT TO SCALE
)
STRAW
ROLLS
http://www.strawwattles.com/erosiondraw/STRWROLL.GIP 9/22/2005
TYPICAL CULVERT PROFILE
NO - TOO DEEP NO - TOO HIGH
YES
Roadbed / 2
Stupe
Seed at d mulch or protect
with riprap
Do not change stream bottom elevation!
TYPICAL CULVERT OUTLET
0 e • ••
-:O°° G• O
+O°.e
• 0e e, aGo
0. 0 • 6 . °
+ O ' 9 •o
ret
e
o •rC...°0 40
'e° ,a° ° ®g a°6e
0.5 in
minimum
15-30 cin
minimum
depth
1-2 n,
Ground Line
rfightripair
••
e• . 0. 0 a 0.O %aO o
° O • 0 oo +0°09 s
0 O�e, C>p0 a O 0. ° oa :.e.o
From "low -Volume Roads Engineering, Best Management Practices Field Guide," BLM and USES.
DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES
zsziftc
TEMPORARY SEDIMENT BASIN
Definitions
A temporary basin with a controlled stormwater release structure, formed by excavation or construction
of an embankment of compacted soil. Required for all drainage areas greater than 1 area.
Purposes
To detain sediment -laden runoff from distributed areas to allow the majority of the sediment to
settle out.
Lkniting Geometry:
UW greater than 2.0
100 -Year or Larger Emergency Spillway
Required volume to crest of emergency
spillway = 1800 cubic feet per acre of
drainage area. Should be cleaned out
prior to becoming half full.
l' moo°D o oc.9 <'
Emergency :,, sx, °ooQoD00O
spillway?;fi .f ::.r. o
°��.525/Do
should not be :........'`'i i. (d ;r5 • 4�°
:3JiE:.:4:A(i:Ntv�Li�/n�pRhi_ �l I
constructed
over fill
material
From: Virginia Soil and Water Conservation Commission, 1985
r•n"' VDFGDr Zooy
9-1-99
Urban Drainage and Flood Control District
FIGURE C-15
Teporary Sediment Basin
C-47
DRAINAGE CRITERIA MANUAL (V. 3) CONSTRUCTION BEST MANAGEMENT PRACTICES
SEDIMENT CLFAMCUI LEVEL
)INVERT OF LOWEST ORRICE
AT R1% OF STORAOR VOLUME)
)- Y (OR LANCER) PVC PERFORATED
i RISER PIPE {PERFORATIONS SREO
TO CRAM W ILME BELOW EUERGE}XW
SPA !Myr W NRCIIRS)
B')OR LARGER) PVC
P7 ELBOW
10]Yrl(OR LARGER)
EMERGENCY SPILLWAY CREST 'BEYOND)
)SHALL BE PROTECTED WITH RWRAPI
BI$IN
ENSAMO.IENT
% MINGLO1 PM OUTLET HPE
OA
QS%MIN&
FIGURE C -15A
Temporary Sediment Basin Outlet Detail
Fro-, tit Fc 0 t 2v0`1
C-48
9-1-99
Urban Drainage and Flood Control District
APPENDIX C
Specifics of Administrative Operations, SWMP Supplement Form, and
SWMP Inspection and Maintenance Form
STORMWATER MANAGEMENT PROGRAM
SPECIFICS OF ADMINISTRATIVE OPERATIONS
This page of the stormwater management program is in place to give an overview of the
way EnCana Corporation is operating its administrative operations of its stormwater
management program. Because of the differences between the oil and gas industry verses
a typical construction site there are some slight differences on how EnCana Corporation
maintains its SWMP. These changes hold true to the CDPHE General Permit Stormwater
Discharge Associated with Construction Active Permit, issued by the state of Colorado.
EnCana Corporation is keeping a log book of all of its 14 day and monthly inspections in
possession of the individual stormwater inspectors separate of the SWMP. The SWMP
and the log book of stormwater inspections go hand in hand in keeping EnCana
Corporation in compliance with the state of Colorado's Stormwater Discharge Associated
with Construction Activity Permit. In the log book, you will find sitespecifics of each
individual pad location. In these specifics you will find a site drawing which indicates
the equipment on each individual location, and where this equipment is placed on the site.
It will identify all the dirt stockpiles and pits being utilized on the location. The drawing
will identify the cut and fill slopes of every pad along with the direction of water flow in
case of a precipitation event. It will also give an approximate distance to the nearest
water of the state and the direction in which it lays. The drawing will identify all BMP's
being used on the site along with a visual indication of the condition of the BMP's.
Attached to this statement is a copy of the inspection form EnCana Corporation is
employing in its log book. On the back of the inspection is where you will find the site
map for that specific location. The site maps will be adjusted anytime there is an
alteration to the pad site. These inspections will be kept in the log book until the location
has reached final stabilization. After the pad has reached final stabilization, the
inspection paperwork will be archived in EnCana's offices in stormwater management
files kept in the EHS department.
Sample Site -Specific SWMP
Site Name:
Site Location: Qtr/Qrt Section Township Range
or: Latitude Longitude
Field SWMP Name: Plateau Creek Area CPDS Permit No: COR -03
Type of Construction: 0 Well Pad 0 Access Road 0 Other
Schedule
Construction Activity
Begin Date
Completion
Date
Clearing & Grubbing
Earthwork
Drilling & Completion
Facility Installation
Interim Reclamation
Other (describe)
Other (describe)
Other (describe)
Estimated Date of Final Stabilization
Final Site Disposition (e.g., permanent or long-term constructed facility, anticipated
restoration to pre -disturbance condition within ## months/years, reduction of disturbed
area to ## acres, etc.):
Disturbance Area
Estimated Total Area of the Site (acres):
Estimated Total Area of Disturbance (acres):
Runoff Coefficients
Pre -Construction Runoff Coefficient:
Post -Construction Runoff Coefficient:
Other available information about the soil, soil erosion potential or the quality of any
discharge from the site:
Vegetation
Pre -Construction Vegetation Species:
(e.g. grass, sagebrush, oakbrush, pinyon -juniper woodlands)
Pre -Construction Vegetative Cover (percent):
Drainages
Distance (feet) and direction to nearest defined drainage:
Distance (feet) and direction to nearest intermittent drainage (as it shown on USGS quad
map or topo `B' of well pad plat package) which could receive drainage from the project:
Name of nearest perennial stream:
Description (size, type and location) of any outfalls at or adjacent to the site:
Location and Description of Other Potential Pollution Sources
(e.g., vehicle fueling, chemical storage, equipment or vehicle washing or maintenance,
waste storage, loading/unloading, off-site vehicle tracking):
Description of Any Non-Stormwater Discharge from the Site and How it Will be
Handled (e.g., creeks, springs, irrigation return flow):
BMPs, Stabilization Methods and Other Controls
Complete and attach copies of BMP Inspection and Maintenance Reports that identify
(by type, location and when used) the individual BMPs and other controls and
stabilization methods used at the site.
BMP and Construction Map
Prepare and attach copy of BMP plan on well pad location layout or other suitable
construction map. Include depiction of construction site boundaries.
SWMP Prepared by:
Date:
EnCana &WM P Euspection and Maintenance Report Site ID:
Date: Inspector: Sipnature:
inspection Type: 14 day (.Active) 0 Monthly (Completed) 0 Precipitation Event E
Distance to waters ofthe State (type):
Vegetation Observations
Vegetation Growth uniform and at least 70% of pre disturbance levels: Yes 0 No 0
Vegetation Erosion Control egyivalent to pre-exisitno conditions: Yes 0 No 0
Site Revegetated: Yes 0 No 0 I Veg. Growth: Yes 0 No 0
Area Inspected: % of pre -disturbance veg. I Comments or Required Action
_l_
Cut Slopp 1
—j
Fill Siope i I
_J_
. 1
Pad •
Noxious Weeds: Yes 0 No n
--I
j Type/Amount
i
(BMP) Check List ___J
$WMP Best Management Practice
Erosion Control: In Use Required
Required Action or Comments
Terraces
—k --
Earth Berm i 1
1
Wattles 1
i
SIo e Drain . • i
L
I
Surface Material r
I
Shale Rock
Mulches
i ---
Native mulchlbrush i
H _
Rolled Product
Diversion Channel t
Check Dam
Sediment Control: IF. In Use I Required
Silt Fence i i
Bale Dikes
Wattles
[
—Ik
Brush/Slash
T-
Sediment Basin I
1 i---
Sediment Pond 1 1 i 1
Site Observations
Observation Response I Comments/Action I
Sediment tranplaorted offsite Yes 0 No n [
, _
Offsite erosion Yes 0 No 0
S ills or leaks Yes 0 No 0 1
Secondarniontainment on storage tanks Yes 0 No 0
Pad graveled Yes 0 No ri .
Offsite soil tracking__ , Yes n No 0
--,
Access Road Observations
r
Observation I Response Comments/Required Acker.
:
Road Graveled I Yes.--.. No c. I
Culveits : Yez; ri No Li
!Net PrOteCtiOn
0.et PrOteCUOii Yil,F, i! No fl
510,2e Stabilization ; Yes 0
Comments:
[ iteDLawing:
Strength Testing Plan
TABLE OF CONTENTS
1.0 Introduction 1
1.1 Purpose 1
2.0 Strength Testing Procedures 1
2.1 Water Sampling 2
2.2 Water Sources 2
2.3 Discharge Locations 2
2.4 Pumps 2
2.5 Safety Measures 3
2.6 Test Sections and Pressures - 3
2.7 Cleaning the Pipeline 4
2.8 Filling the Pipeline 4
2.9 Testing the Pipeline 4
2.10 Depressurizing the Pipeline 5
2.11 Dewatering the Pipeline 5
2.12 Drying the Pipeline 5
3.0 Records 5
Collbran Pipeline Project
August 2007
Strength Testing Plan
1.0 INTRODUCTION
This Strength Testing Plan (plan) identifies measures to be taken by EnCana Oil & Gas (USA)
Inc. (EnCana) and its contractors (Contractor) to ensure internal cleanliness, the strength of the
pipeline and facilities and that no leaks exist. The plan will be carried out in accordance with the
following:
• United States Department of Transportation (DOT), 49 CFR Part 192, Sub -Part J—Test
Requirements
• DOT, 49 CFR Part 195, Sub -Part E—Pressure Testing
• Colorado Department of Public Health (CDPHE)—Water Quality Control Division (WQCD)
Measures identified in this plan apply to work within the project area defined as the construction
workspace, temporary use areas, and other areas used during hydrostatic and pneumatic pressure
testing of the pipeline and facilities.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating strength testing operations on the project.
1.1 Purpose
The purpose of this plan is to define the necessary measures that are to be implemented during
strength testing to ensure the safety of all pipeline construction personnel and the general public.
This plan describes safety standards and practices that will be implemented during construction
of the project to minimize health, safety, and environmental concerns related to strength testing
on the project. This plan also identifies measures relating to water quality that will be
implemented during withdrawal and disposal of hydrostatic test water.
This plan will be developed as the implementing document for relevant mitigation measures
contained in the Environmental Assessment and may be updated prior to construction to ensure
that all mitigation measures have been included.
2.0 STRENGTH TESTING PROCEDURES
The following procedures will be implemented by the Contractor during strength testing
operations. This section of the plan describes pre -testing requirements, the typical sequence of
activities associated with the pressure testing operations and notifications required by EnCana
and the Contractor.
EnCana is responsible for securing the necessary permits from the governing authorities for the
use and disposal of test water. EnCana will also comply with the rules and regulations of the
DOT and CDPHE WQCD. EnCana will provide Contractor with a copy of the
withdrawal/discharge permits and Contractor shall keep copies onsite at all times during the
testing operations.
Collbran Pipeline Project
August 2007
Strength Testing Plan
The test water withdrawn and discharged by the Contractor will be in compliance with regulatory •
notification requirements and sufficient notice will be provided to EnCana to make water
sampling arrangements, as necessary.
2.1 Water Sampling
Hydrostatic test water sampling will be performed in accordance with CDPHE WQCD Minimal
Industry Discharge permit requirements. Prior to any filling operations, EnCana's Environmental
Inspector will obtain any required water samples from each source to allow time for lab analysis.
Whenever water sampling is required, sample bottles will be obtained from a certified testing
laboratory. Analysis of the samples will be in accordance with permit requirements. Each bottle
will be marked with:
• source of water with pipeline station number,
• date taken,
• laboratory order number, and
• name of person taking sample.
EnCana's Environmental Inspector will be notified at least 72 hours prior to obtaining water
and/or discharging water and the Contractor will provide the Environmental Inspector access for
sampling.
2.2 Water Sources
All water used for the hydrostatic testing will be obtained from approved sources. A maximum
of approximately 2.8 million gallons of water will be required for hydrostatic testing. Water
would be obtained from EnCana's Colorado River water rights.
When surface water sources are used, EnCana will use screens on the intake hoses to prevent the
entrapment of fish or other aquatic species. EnCana will monitor the appropriation rate to ensure
that an adequate downstream flow is maintained to support aquatic life.
2.3 Discharge Locations
Hydrostatic test water discharge will comply with all requirements of the CDPHE WQCD
Minimal Industry Discharge Permit. Potential discharge locations include the Colorado River,
Little Anderson Gulch, Horsethief Creek, and unnamed tributaries to Plateau Creek and the
Colorado River.
2.4 Pumps
The pumps used to fill the pipeline shall have sufficient capacity to fill the line at a rate of not
less than 800 gpm. If pumps for hydrostatic testing are used within 200 feet of any waterbody or
wetland, secondary containment measures (such as bermed depressions lined with visquene
plastic, plastic troughs, or other containment structure) will be implemented to prevent any
2 Collbran Pipeline Project
August 2007
Strength Testing Plan
spilled fuels or oils from reaching the waterbody or wetland.
2.5 Safety Measures
The Contractor will provide for the safety of all pipeline construction personnel and the general
public during hydrostatic test. The Contractor will:
• Place warning signs in or near populated areas.
• Restrict access to the area involving the hydrostatic test (i.e., test shelter, manifolds, pressure
pumps; instruments, etc.) to only those personnel engaged in the testing operations.
• Prohibit major pipeline work not directly associated with the test operations around the
pipeline sections being tested. While the pipeline facilities are being pressurized and during
the test all personnel not required for direct operations (checking for leaks, tightening
gaskets, checking valve status, operating pumps, recording data, etc.) will be restricted from
the area where the pipeline is being tested.
• Provide and maintain a reliable transportation and communication system during the test
operations whereby all personnel directly involved in the test will be able to communicate
test status or problems that develop during the test.
• Check all hoses, fittings, connectors, and valves for proper pressure rating.
• Restrain and secure fill and discharge lines/hoses.
2.6 Test Sections and Pressures
Each pipeline will be strength tested to prove its integrity and substantiate the Maximum
Allowable Operating Pressure (MAOP). All pressure tests shall meet the requirements of 49
CFR 192, Subpart J or 49 CFR 195, Subpart E.
Natural gas pipelines will be strength tested to a minimum pressure of 110 percent of the MAOP
for Class 1 pipe locations and 125 percent of the MAOP for Class 2 pipe locations. For Class I
pipe, minimum test pressure is 1628 psi and MAOP is 1480 psi. For Class 2 pipe, minimum test
pressure is 1850 psi and MAOP is 1480 psi.
Due to the test water pressure gradient caused by the difference in elevation along the proposed
routes, the pipelines will be tested in sections to maintain hydrostatic tests within the established
test pressures. To ensure test integrity, leak determination, and repair capability, the maximum
allowable test pressure, of each section, will not exceed 100% of SMYS or 1.5 times the pressure
rating of the lowest ANSI rated valve or flange in the system. The hydrostatic tests will normally
be performed in sequence, transferring water from one test section to another as practical.
Col!bran Pipeline Project 3
August 2007
Strength Testing Plan
2.7 Cleaning the Pipeline
Upon completion of the pipe lowering and backfilling operations and prior to filling the pipeline
for a hydrostatic test, each section of the pipe to be tested shall be cleaned.
The Contractor shall clean the pipeline by blowing with air, a wire brush type pig(s), with
aluminum sizing plate through the interior of the line a sufficient number of times to clean any
rust, scale, slag, dirt or other debris which may be in the pipeline. Following, the pipeline shall
be cleaned using compressed air to propel a reinforced poly type pig. The cleaning pig shall be
run through each test section until each section has been cleaned before filling the pipeline with
water for testing. EnCana's Test Inspector will be present for the first and last brush pig run to
compare their respective conditions and will be present to approve the cleanliness of the line.
2.8 Filling the Pipeline
Prior to filling a test section with water, the Contractor will make a final check to verify the
following:
• valve body drain plugs have been removed, carefully cleaned, taped (Teflon) and replaced;
• all mainline valves are in open position;
• valves have been greased, stroked, and the packing tightened; valve stops are properly set; all
pipe and bolt connections are tight;
• test manifolds are properly fabricated and tested;
• pumps and compressors are in good working condition;
• instruments are ready for use (proper charts installed, clocks wound, correct calibration, etc.);
and
• pigs are properly installed.
A pipeline pig will be placed ahead of the water to separate the remaining air in the line from the
hydrostatic test water. The pipeline shall be filled at a rate of not less than 800 gpm.
After completion of the filling operation, the pipeline water temperature and turbulence will be
allowed to stabilize. The Contractor will check the pressure on each end of the test section and
compare with calculated pressures to confirm the specified test pressure for the section.
2.9 Testing the Pipeline
The duration of the test will be not less than 8 hours, with the pressure maintained at or above the
minimum test pressure at all points in the pipeline section. The test will be accepted upon proof
of no leakage.
In the event of a leak during testing, the leak will be repaired as directed by EnCana's Test
Inspector and the above test repeated until a satisfactory test is obtained on the section.
4 Collbran Pipeline Project
August 2007
Strength Testing Plan
2.10 Depressurizing the Pipeline
After the test has been presented by the Contractor as a successful test and accepted by EnCana's
Test Inspector, the pipeline will be depressurized as soon as practical.
2.11 Dewatering the Pipeline
The Contractor will be responsible for discharging the test water in accordance with CDPHE
WQCD Minimal Industry permit requirements.
The Contractor will utilize an energy -dissipating device (straw bale structure) to prevent scour,
erosion, and damage to vegetation and the rate of discharge will be monitored to prevent the
device from being ineffective. Discharge lines will be sufficient in strength and will be securely
supported and constrained at the discharge end to prevent whipping during the dewatering
operation. Water must be disposed of using good engineering judgment so that all federal, state,
and local environmental requirements are met.
If required, test water will be sampled during discharge in accordance with CDPHE WQCD
Minimal Industry Discharge permit requirements.
2.12 Drying the Pipeline
Following the dewatering of individual pipeline sections, these sections will be cleaned of
loosely adhered mill scale, rust, dirt, and other debris by the use of air propelled pigs.
To facilitate drying, several sections of pipeline may be welded together, cleaned, and dried in
one continuous section.
3.0 RECORDS
In accordance with applicable regulations, the Contractor shall maintain complete and
comprehensive records of all hydrostatic and pneumatic tests and of related activities such as
filling, pressuring, stabilizing, dewatering, etc.
All records shall be clearly identified with respect to the specific piping systems to which they
apply, and all records shall be accurately dated. In addition to the general requirements above,
such forms shall at a minimum include:
• a description of the facility tested and the test apparatus;
• logs showing dead weight pressure readings and ambient temperature readings, with the date
and time of each reading. Any other activities or events pertinent to the test shall be noted on
the log sheets, including the following:
- date and time of test,
- identification of piping system,
- test medium, pressure and duration,
automatic 24 hour pressure -time and temperature -time recording chart, including manual
Collbran Pipeline Project
August 2007
Strength Testing Plan
recording of pressure gauge readings at each additional station,
- test medium temperature at definite time intervals,
a summary of leaks and repair methods, and
the names and company affiliation of persons recording the test data;
• pressure and temperature recorder charts showing the date and time stop and start of
recording;
• weather conditions during testing;
• elevation variations, whenever significant for the particular test (over 100' for liquids line);
• calibration certificates for dead weight gauges and records of field calibrations of pressure
and temperature instruments;
• make, style number and condition of all pigs used in filling and dewatering; and
• any remarks pertinent to any phase of the test.
6 Collhran Pipeline Project
August 2007
Transportation Management Plan
Transportation Management Plan
TABLE OF CONTENTS
1.0 Introduction 1
1.1 Purpose 1
2.0 Access to the Project Right -of -Way 1
2.1 Existing Roads 1
2.1.1 Federal, State, and County 1
2.1.2 Private 1
2.2 Access Road Maintenance 1
2.2.1 Maintenance 2
2.2.2 Straightening, Widening, Cut and Fill, and Culverts 2
2.2.3 Resurfacing 2
2.3 Controlling Off -Highway Vehicle Use of the Right -of -Way 2
3.0 Transportation Management Practices 2
3.1 Notifications 2
3.2 Construction Methods 3
3.2.1 Bore 3
3.2.2 Open -Cut 3
3.3 Safety and Traffic Flow Management 3
3.4 Fugitive Dust Control 4
3.5 Erosion Control 4
Collbran Pipeline Project
August 2007
Transportation Management Plan
1.0 INTRODUCTION
This Transportation Management Plan (plan) describes measures to be taken by EnCana Oil &
Gas (USA) Inc. (EnCana) and its contractors (Contractor) to access the right-of-way and
maintain public access around construction areas. The plan also describes pipeline construction
procedures for road crossings.
Measures identified in this plan apply to work within the project area defined as the construction
workspace, access roads, temporary use areas, and other areas used during construction of the
project.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating construction on the project.
1.1 Purpose
The purpose of this plan is to provide project personnel and agencies with a description of the
access and transportation related activities associated with construction. This plan will be
developed as the implementing document for relevant mitigation measures contained in the
Environmental Assessment and may be updated prior to construction to ensure that all mitigation
measures have been included.
2.0 ACCESS TO THE PROJECT RIGHT-OF-WAY
Existing roads will be used to access the right-of-way. EnCana will not construct any new access
roads on BLM lands during construction, operation, or maintenance of the project.
2.1 Existing Roads
2.1.1 Federal, State, and County
EnCana will acquire state and county road use permits and the Contractor will be responsible for
following any maintenance or improvement requirements associated with the road use permits.
2.1.2 Private
EnCana will obtain fee -landowner agreements for any use of private roads. All conditions agreed
to with the fee -landowner must be met by the Contactor for continued use of the road.
2.2 Access Road Maintenance
Improvements to access roads may be needed in some areas to accommodate oversize and heavy
construction equipment. In general, roadway improvements will involve the least amount of site
disturbance and earthwork necessary to make the roads useable for project use. Road
improvements may include grading, straightening, widening, adding drainage controls (e.g.,
crown and ditch, waterbars, rolling dips, etc.) adding culverts, cut and fills, and resurfacing. All
maintenance will conform to landowner, county, and BLM requirements. No maintenance or
Collbran Pipeline Project
August 2007
Transportation Management Plan
improvements will be allowed on any road not approved for improvements. All maintenance and
improvements will be completed in accordance with project requirements.
EnCana will ensure that all required cultural surveys and agency authorizations are obtained
prior to any surface disturbing activities.
2.2.1 Maintenance
Grading will be the primary method of maintenance on most roads. Roads will be maintained at
pre -construction conditions or improved in accordance with permit requirements. Existing
maintained roads (gravel or dirt surfaced) can be graded as necessary, providing there is no
disturbance outside the existing roadbed. Two -tracks or unmaintained roads will require cultural
surveys prior to grading.
2.2.2 Straightening, Widening, Cut and Fill, and Culverts
Due to the size of vehicles that will use access roads, some improvements beyond grading may
be required. These improvements will only be accomplished with EnCana approval and with
BLM approval on BLM lands and landowner approval on fee -lands.
EnCana will identify areas where straightening, widening, cut and fill, and/or culverts may be
required on BLM lands. These areas will be flagged for field review by the BLM. No
improvements will occur until agency approval is received and cultural surveys are completed.
2.2.3 Resurfacing
Paved roads that are crossed with the open -cut method or otherwise damaged will be repaved
within 24 hours unless a shorter or longer time frame has been stipulated in the permit.
The Contractor will protect the road surface with used tires or suitable equivalent prior to
crossing paved roads with tracked equipment.
2.3 Controlling Off -Highway Vehicle Use of the Right -of -Way
Measures will be provided to control the use of the right-of-way and prevent unauthorized travel
along the right-of-way by off-highway (OHV) vehicles. Measures may include leaving the right-
of-way in a roughened state and scattering vegetative debris across the surface, placing dirt
berms, rock, or vegetative barriers at intersections with existing roads, and randomly placing
boulders, logs, and stumps across the right-of-way to discourage OHV use.
3.0 TRANSPORTATION MANAGEMENT PRACTICES
EnCana will acquire all necessary permits for road crossings. The Contractor will comply with
all permit stipulations, including, but not limited to, oversize and overweight restrictions.
3.1 Notifications
The Contractor will be responsible for notifications to the county and state highway departments
as needed. The Contractor will notify EnCana at least 7 days in advance of all BLM and private
Co((bran Pipeline Project 2
August 2007
Transportation Management Plan
road crossings. The Contractor will provide a second notification to EnCana 72 hours in advance
so that EnCana can notify the BLM and private landowners 24 hours in advance of planned road
crossings.
3.2 Construction Methods
3.2.1 Bore
Major roads (i.e. Mesa County V Road and Garfield County Road 301) will be crossed by boring
to avoid traffic disruptions. Boring requires the excavation of a pit on each side of the feature,
the placement of boring equipment in the pit, then boring a hole under the road at least equal to
the diameter of the pipe. Once the hole is bored, a prefabricated pipe section will be pushed
through the borehole. For long crossings, sections may be welded onto the pipe string just before
being pushed through the borehole. There will be little or no disruption to traffic at road or
highway crossings that are bored.
3.2.2 Open -Cut
The majority of the roads would be crossed by the open -cut method if approved by the county
and BLM. Where open -cut crossings are conducted, the Contractor will detour or control traffic
during construction to minimize delays at these locations. If reasonable delays are not feasible, at
least one lane of traffic will be left open. Most open -cut road crossings will be completed within
24 hours. All roads will be maintained in such a way to allow access for emergency vehicles.
3.3 Safety and Traffic Flow Management
The Contractor will begin and end construction activities after the average workday, as practical,
to minimize traffic congestion impacts to the public. The construction yards will be used as the
primary parking area for personal vehicles, and the majority of pipeline construction workers
will be transported to the construction right-of-way by buses, as practical.
Appropriate traffic control signs will be used any time there is construction within 20 feet of any
road, at all equipment crossings of improved roads (paved or gravel), and when a high volume of
traffic will be entering or existing an improved road from the right-of-way. Flag persons, signs,
barricades, guard rails, safety fence, and signals will be placed and maintained at road crossings
as required in BLM, state, or county permit stipulations. In the absence of such regulations, The
Contractor will place signs 500 feet in each direction from the crossing identifying that
construction or flagmen are ahead. Flagmen will be used on each side of the road crossing
whenever equipment is working in or crossing over any improved road. Flagmen will be
equipped with orange safety vests and stop/slow signs.
Posted speed limits will be observed on highways, county roads, BLM roads, and posted private
roads.
Collbran Pipeline Project
August 2007
Transportation Management Plat
3.4 Fugitive Dust Control
Fugitive dust will be controlled as described in the Fugitive Dust Control Plan.
Whenever vehicles or equipment will access a paved road directly from the right-of-way, a
construction entrance to the paved structure will be used. The Contractor will keep all paved
roadways free of accumulated mud and dirt. Construction entrances will be constructed in
accordance with state county road permit stipulations.
3.5 Erosion Control
Waterbars will be placed upslope of all improved roads to keep sediments from reaching the
road, as detailed in the Stormwater Management Plan.
Col(bran Pipeline Project 4
August 2007
Waterbody Crossing
and
Protection Plan
Waterbody Crossing and Protection Plan
TABLE OF CONTENTS
1.0 Introduction 1
1.1 Purpose 1
2.0 Construction Methods I
2.1 General Requirements I
2.1.1 Flagging 1
2.1.2 Hazardous Materials 1
2.2 Vehicle and Equipment Crossings 2
2.3 Clearing and Grading 2
2.4 Waterbody Installation 3
2.4.1 General Requirements 3
2.4.2 Open -Cut 3
2.4.3 Dry Drainages 4
2.4.4 Colorado River 4
3.0 Erosion Control and Restoration 4
3.1 Erosion Control 4
3.2 Restoration 5
LIST OF ATTACHMENTS
Attachment 1—Waterbody Crossings
Attachment 2— Typical Construction Details
Collbran Pipeline Project
August 2007
Waterbody Crossing and Protection Plan
1.0 INTRODUCTION
This Waterbody Crossing and Wetland Protection Plan (plan) describes measures that EnCana
Oil & Gas (USA) Inc. (EnCana) and its contractors (Contractor) will utilize during construction
activities in and around dry drainages and waterbodies. Methods and procedures in this plan will
be included in United States Army Corps of Engineers (Corps) Nationwide Permit 12 Pre -
Construction Notification.
Measures identified in this plan apply to work within the project area defined as the construction
workspace, temporary use areas, and other areas used during construction of the project.
EnCana and Contractor personnel are to be thoroughly familiar with this plan and its contents
prior to initiating construction on the project.
1.1 Purpose
This purpose of this plan is to minimize the environmental impacts to waterbodies and dry
drainage crossings. This plan will be developed as the implementing document for relevant
mitigation measures contained in the Environmental Assessment and may be updated prior to
construction to ensure that all mitigation measures have been included.
A list of waterbodies and wetlands crossed by the project is included in Attachment 1.
2.0 CONSTRUCTION METHODS
Specific construction methods will be determined by the Contractor by utilizing the requirements
of this plan as the minimum acceptable standards.
2.1 General Requirements
2.1.1 Flaeaine
EnCana will sign and/or flag the following boundaries at least 72 hours prior to any clearing or
grading, or before any construction crew is within one mile of any waterbody.
• Limits of the construction workspace in waterbodies and wetlands (survey flagging)
• Limits of 200 -foot buffers for fueling and concrete coating activities ("No Refueling" sign)
2.1.2 Hazardous Materials
The Contractor will not store hazardous materials, chemicals, fuels, lubricating oils, or perform
concrete coating activities within 200 feet of any waterbody or dry drainage. Equipment or
vehicles that are crossing or working within 200 feet of waterbodies will not be refueled unless
the Environmental Inspector gives a specific exception. If any hazardous material must be
temporarily stored or transferred within 200 feet of a waterbody (i.e. stationary pumps), then it
must be placed within a secondary containment structure that is capable of containing 110
percent of the volume of the stored material.
Collbran Pipeline Project
August 2007
Waterbody Crossing and Protection Plan
2.2 Vehicle and Equipment Crossings
Before construction, temporary bridges will be installed across flowing waterbodies to allow
construction equipment to cross. Bridges may include clean rock fill over culverts, timber mats
supported by flumes, railcar flatbeds, flexi-float apparatus, or other types of spans. Typical
drawings for equipment bridges are included in Attachment 2. Construction equipment will be
required to use the bridges, except the clearing crew who will be allowed one pass through the
waterbodies before the bridges are installed.
Equipment bridges will be one of the following types:
• portable bridges that span the channel
• clean rock riprap and flumes
• timber equipment mats
Each bridge will be designed to allow for the maximum predicted flows for the timeframes that it
will be in place, including all anticipated precipitation events. The Contractor will also maintain
bridges so that soil from equipment or the bridge abutment is prevented from entering any
waterbody. All equipment bridges will be removed as soon as possible after permanent seeding.
2.3 Clearing and Grading
Clearing adjacent to waterbodies will involve the removal of trees and brush from the
construction workspace and additional temporary use areas. Clearing and grading at waterbody
crossings will be limited to that needed to construct the crossing. During clearing, the root
systems will be left in place except over the trenchline and in areas that require grading. Root
systems may also be removed along the travel lane to allow safe passage by rubber -tire vehicles.
Sediment bathers may be installed at the top of the waterbody bank if no herbaceous strip exists.
Initial grading of the herbaceous strip will be limited to the extent needed to create a safe
approach to the waterbody and to install bridges.
During clearing, sediment barriers will be installed and maintained across the construction
workspace adjacent to waterbodies and within additional temporary use areas to minimize the
potential for sediment runoff in accordance with the Stormwater Management Plan. Silt fence
and/or straw bales located across the working side of the construction workspace will be
removed during the day when vehicle traffic is present and will be replaced each night.
Alternatively, drivable berms may be installed and maintained across the construction workspace
in lieu of silt fence and/or straw bales. The Contractor will maintain these devices in functioning
order until construction activities, including reclamation, have been completed.
2 Col'bran Pipeline Project
August 2007
Waterbody Crossing and Protection Plan
2.4 Waterbody Installation
2.4.1 General Requirements
The following requirements apply to all waterbody crossings.
• Prohibit concrete coating, refueling activities, and hazardous material, chemical, fuel, or
lubricating oil storage within 200 feet of any waterbody or riparian area.
• Fabricate pipe segments for the crossing in adjacent temporary use areas.
• Use concrete -coated pipe and/or set -on weights to provide negative buoyancy, as required.
• Install temporary equipment bridges across flowing waterbodies.
• Strip topsoil from the streambanks along the trenchline and stockpile at least 10 feet from
waters edge.
• Store subsoil at least 10 feet from the waters edge and locate behind sediment barriers or
other containment structures.
• Limit in -stream work to the construction equipment necessary to dig the trench, lower -in the
pipe, and backfill the trench.
• Cross waterbodies during periods of low flow and make every effort to complete all in -
stream work within 24 hours.
• Bury the pipeline at least 5 feet below the bottom of each jurisdictional drainage.
• When trench dewatering is necessary, locate dewatering structures in upland areas so that no
heavily silt -laden water reaches a waterbody.
• Restore streambanks as soon as possible after installation of pipe. Pre -construction bed and
bank contours will be reestablished, streambanks revegetated, and erosion control fabric will
be installed to stabilize the streambanks.
• Maintain erosion and sediment control measures until streambanks and adjacent upland areas
are stabilized.
2.4.2 Open -Cut
The open -cut crossing method will involve trenching through the waterbody while water
continues to flow through the trenchline. Trackhoes will excavate a trench in the flowing
waterbody from one or both of the waterbody banks. Equipment operating within the waterbody
will be limited to that needed to construct the crossing. EnCana will place spoil excavated from
the trench a minimum of 10 feet from the edge of the waterbody for temporary storage.
Sediment barriers will be installed where necessary to prevent sediment and excavated spoil
Col!bran Pipeline Project
August 2007
Waterbody Crossing and Protection Plan
from entering the water. Earthen trench plugs will be left in place on both banks of the
waterbody until immediately before pipe installation in order to separate the waterbody trench
from the upland trench to prevent water from being diverted into the upland portions of the
pipeline trench and to keep muddy water that accumulates in the upland trench from flowing into
the waterbody. Once the trench is excavated, the prefabricated segment of pipe will be installed
in the trench at least 5 feet under the streambed. The trench will then be backfilled with native
streambed spoil and the streambanks restored to pre -construction contours.
2.4.3 Dry Drainages
Dry drainage crossings will be constructed using the same upland, mainline construction
methods that will be used along the rest of the construction workspace, except that spoil will be
placed outside the channel. During cleanup and reclamation, the pre -construction profiles and
contours (including meanders of the drainage bed) of dry drainages will be re-established. Mulch
and erosion control matting will be installed in accordance with requirements for waterbodies as
discussed in Section 3.0.
2.4.4 Colorado River
The Colorado River will be crossed by suspending the pipeline on an existing Garfield County
span bridge. EnCana will suspend the pipeline in accordance with all applicable Garfield County
permit requirements.
3.0 EROSION CONTROL AND RESTORATION
3.1 Erosion Control
Immediately after initial ground disturbance, temporary erosion control measures will be
installed. This will include at a minimum, sediment barriers at the base of all slopes along the
construction workspace leading to waterbodies and wetlands. All temporary controls will be
maintained until permanent erosion control is in place as defined in the Stormwater Management
Plan. After pipe installation, trench breakers will also be placed at the base of slopes leading to
waterbodies and wetlands. Waterbars will be placed just below the trench breakers to carry off
any excess water into vegetated areas.
Streambanks and slopes above dry drainages, waterbodies and wetlands require additional
stabilization beyond the replacement of original contours and other normal erosion control
requirements. Stabilization of waterbody banks with on-site materials (e.g. placing felled trees
along the streambanks) will be determined on-site by the Environmental Inspector. Straw mulch,
or an equivalent protection measure, will be required for stabilization for dry drainage and
waterbody streambanks with over 30 percent slope and other areas as directed by the BLM
Authorized Officer or field representative. The mulch will extend up the banks 100 feet or until
the slope is less than 30 percent, whichever is less. Erosion control matting, or an equivalent
protection measure, will be required for stabilizing dry drainage and waterbody streambanks
with over 40 percent slope and other areas as directed by BLM Authorized Officer or field
representative. The matting will extend up the banks 100 feet or until the slope is less than 40
percent, whichever is less. Installation and stapling of erosion control matting will follow
4 Collbran Pipeline Project
August 2007
Waterbody Crossing and Protection Plan
procedures specified in the details. For streambank installations, mats will be laid parallel (upper
mat overlapping lower mat in a shingle pattern) to the waterbody to a point above the top of the
bank. As mentioned above, native materials (rocks, logs, etc.) may be used in conjunction with
the matting to aid in stabilization of berms. Refer to the Stormwater Management Plan for
additional information on mulching and erosion control matting.
3.2 Restoration
• Original meanders, profiles, and other contours of waterbodies and 100 feet up each
waterbody bank (as measured from waters edge) will be restored, final cleanup concluded,
seeding accomplished, and mulching or erosion control mats installed, within 24 hours of
installing the waterbody crossing.
Exceptions to this timeframe may include:
• Seeding and installation of erosion control matting may be deferred until final cleanup (i.e.,
the temporary bridge is removed and waterbody banks across the travel lane are restored to
pre -construction conditions) if the streambanks and all disturbed slopes above the waterbody
are stabilized with an application of mulch extending 100 feet up the slope.
• Temporary bridges or other materials (e.g. timber mats) required for access will not have to
be removed until they are no longer needed. All other areas at the crossing, not needed for
the bridge abutments, must meet the requirements above.
• Very steep or incised waterbody banks with the likelihood of further erosion will not have
the original contour restored. These waterbody banks will be restored at a 1.5 to 1 slope
(horizontal to vertical), which is equivalent to 67 percent slope. Transition from adjacent
slopes, to those reclaimed over the construction workspace, will be made to prevent erosion
between these transitions, and to minimize eddying at the toe of these slopes.
• If reclamation and seeding is deferred more than 10 days after final grade restoration near
waterbodies, all disturbed slopes above waterbodies and wetlands will be temporarily
stabilized by applying straw mulch for a minimum distance of 200 feet above the edge of the
waterbody.
Collbran Pipeline Project 5
August 2007
Waterbody Crossing and Protection Plan—Attachment 1
ATTACHMENT 1—WATERBODIES and DRY DRAINAGES
Collbran Pipeline Project
August 2007
Waterbody Crossing and Protection Plan -Attachment /
Milepost
Name
Flow Regime
Perennial
Intermittent
or Ephemeral
0.4
Unnamed tributary to Little Anderson Gulch
X
1.5
Little Anderson Gulch
X
2.8
Unnamed tributary to Jerry Gulch
X
3.2
Unnamed tributary to Jerry Gulch
X
4.2
Unnamed tributary to Atwell Gulch
X
4.7
Atwell Gulch
X
5.9
Unnamed tributary to Shire Gulch
X
6.4
Unnamed tributary to Shire Gulch
X
7.4
Unnamed tributary to Shire Gulch -
X
8.2
Unnamed tributary
X
8.4
Unnamed tributary
X
9.0
Unnamed tributary to Little Horsethief Creek
X
9.2
Little Horsethief Creek
X
9.7
Unnamed tributary to Little Horsethief Creek
X
10.3
Unnamed tributary to Little Horsethief Creek
X
11.0
Unnamed tributary to Little Horsethief Creek
X
11.7
Unnamed tributary to Horsethief Creek
X
11.8
Unnamed tributary to Horsethief Creek
X
11.9
Unnamed tributary to Horsethief Creek
X
12.2
Unnamed tributary to Horsethief Creek
X
12.4
Unnamed tributary to Horsethief Creek
X
12.5
Unnamed tributary to Horsethief Creek
X
12.7
Unnamed tributary to Horsethief Creek
X
13.0
Unnamed tributary to Horsethief Creek
X
13.7
Unnamed tributary to Horsethief Creek
X
13.8
Unnamed tributary to Horsethief Creek
X
14.0
Unnamed tributary to Horsethief Creek
X
14.2
Unnamed tributary to Smith Gulch
X
14.7
Smith Gulch
X
14.8
Unnamed tributary to Smith Gulch
X
15.6
Unnamed tributary to Smith gulch
X
15.7
Unnamed tributary to Colorado River
X
15.9
Unnamed tributary to Colorado River
X
16.1
Unnamed tributary to Colorado River
X
16.2
Unnamed tributary to Colorado River
X
18.3
Alkali Creek
18.9
Unnamed tributary to Colorado River
X
19.9
Little Alkali Creek
X
20.8
Wallace Creek
X
20.9
Colorado River
X
21.5
Unnamed tributary to Colorado River
X
Collbran Pipeline Project
August 2007
Al-!
Waterbody Crossing and Protection Plan—Attachment 2
ATTACHMENT 2- TYPICAL CONSTRUCTION DETAILS
Collbran Pipeline Project A 1-
August 2007
Waterbody Crossing and Protection Plan—Attachment 2
1111111I_
ARMOR _._�
E NEEDED
(EE NOTE 0)
IFi:SIM,L ROCK SC04FR PROTECTION
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................... .
Collbran Pipeline Project A2 -I
August 2007
Waterbodp Crossing and Protection Plan—Attachment 2
WATFReQJEN
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A2-2 Collbran Pipeline Project
August 2007
Waterbody Crossing and Protection Plan—Attachment 2
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Collbran Pipeline Project
August 2007
A2-3
Waterbody Crossing and Protection Plan—Attachment 2
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A2-4 Collbran Pipeline Project
August 2007
AFFECTED SURFACE OWNERS
Affected Surface Owners
Landowner
Contact Information
Legal Description
Steven and Sherry Keinath
0864 CR 339
Parachute, CO 81635
T7S, R96W Sec. 33
T8S, R97W, Sec. 4, 5, 7, 8, 9,
16, 17 and 18
Bureau of Land Management-
Glenwood Springs Energy
Office
2425 S. Grand Ave., Suite 101
Glenwood Springs, CO 81601
T7S, R96W, Sec. 4
Colohan Family Trust
15393 Via La Gitana,
Carmel Valley, CA 93924
T7S, R96W Sec. 33 and 34
T8S, R96W, Sec 4
Tipping et al.
PO Box 1329
Grand Junction, CO 81502
T7S, R96W, Sec. 27, 33, and
34
Specialty Restaurants
Corporation and Stockton
Restaurant Corporation
8191 E. Kaiser Blvd.
Anaheim, CA 92808
T7S, R96W, Sec. 33
T8S, R96W, Sec. 5 and 6
ADJACENT SURFACE OWNERS
Adjacent Surface Owners
Landowner
Contact Information
Colorado Department of Transportation
222 S. 6'h St., Room 100
Grand Junction, CO 81501
George Strong
PO Box 808
Silt, CO 81650
M. Carter Jolley
PO Box 284
Glenwood Springs, CO 81602
ASSESSOR MAPS
T3 +T
5TRAIGH
RANC
BL M
BLM
BOTTOM
LLLP
SMALL—
WOOD
ETAL
30 N
29
BLM
28 l
B.L.M.
SEE MAP
2409-284
FRAC
TECH
4T
6+
WMS
PROD RM
SMALL—
WOOD
ETAL
BLM
Proposed Office
& Yard Location
STRONG
WMS PROD RMT
ORCHARD
UNIT
COMP.
SITE
TIPPING
ETAL.
DEKAM T
EN YEAR
WMS
ROD RMT
1
WELLER
ETAL
34
KEINATH
6T
BOUNDARY
D &
NHOO
TRUST
COLOHA
FAMIL Y
Proposed
Collbran Pipeline
COLOHAN
FAMILY
WELLER
ETAL
4 51
E LER
etal
TRUST
t
KEINATH
KNOX, L
Proposed
Pipe Yard Location
KEINATHJ.
KEINATH
1
JOLLEY
JOLLEY
xl
SPEC!
•
•
•
•
•
••• KEINATH
•
SA TTERFI EL
& LINDA
GARFIRLD C UNTY
(/)
O
C4 1!
PREPARV) FOR:
EnCana Oil & Gas (USA) Inc.
1000
(SCALE IN FEET)
REFERENCES
GARFIELD COUNTY PARCEL MAPS
PREPARED BY:
*R
ATCH
SURYEYIN6
605 Nen ate
b*1 . wyv^t9 WA'q
1nne 00 (301.11.4.45
DATE: A(rr24, 2008
scALE: 1•. 2E2Y
Proposed Pipe Yard &
Office Site Locations
Sections 5 & 6
TES R96W, &
Section 33, T7S, R96W
Garfield County, Colorado
1 SHEET 1 OF 1
PROJECTNO.: O7.O4-24
OM RAVE
P.
e Yard & Offio- l - Exhibit
M
DUTTON
A FAMILY
1U•U
USA) Inc.
- OCCIDENTAL OIL
SHALE ETAL
T. 7
T. 8 S.
GS LLC
BLM
,t
B.L.M.
et
BLM
1
31
30
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HOLD
BOUNDARY
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BLM
150
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0
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41 31
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DAYBREAK REALTY
Y
DAYBREAK REALTY
048
ENCANA
36
BLM
41
NOCKS S.
NAUROTH
NAUROTH
f
GARFIELD COUNTY
MESA
_TY
:KTON
RANT
Q.,
SPECIALTY SPECIALTY
& STOCKTON cs/
RESTAURANT
10
a
' �� USA
s°es SPECT
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i'
COUNTY
SPECIALTY 7
& STOCKTON
RESTAURANT
RI fRFAI I OF
BUR.
OF
REC.
KEINATH
REVISIONS
BY
DATE
REFERENCES
jGARFIELD COUNTY PARCEL MAPS
BLM
DUTTON
ETAL
r /e
RAMOS
MURRAY
DUNCAN
1
WALLING
BLM 1
UP PROP
LP f�F�
M. DUTTON
LIFE ESTATE
D. DUTTO
Ay—toad Numbe
IYRUP
?UP
PROP
0L 7000 2000
(SCALE IN FEET)
DATE: Apra 24, 2008
GARFIELD COUNTY
MESA COUNTY
HYRUP
PROP
LLLP
OMWin Bevel SCALE:1'=2000
won Mania aro
oto Ha mon remus PROJECT NO.: 07-04-24
COLLBRAN PIPELINE
Sections 27, 33, & 34,
T7S R96W, &
Section 4, T8S R96W
Garfield County, Colorado
1 SHEET 1 OF 1
OWO. tame
Exhibit
KEINATH MASTER SURFACE USE AGREEMENT
May. 16. 2008 9:44AM No. 0145 P. 1
SECOND AMENDMENT TO MASTER SURFACE USE
AGREEMENT
State: Colorado
Counties: Garfield and Mesa
Surface Owner: Steven W. Keinath and Sherry L. Keinath
0864 County Road 339
Parachute, CO 81635
Operator: EnCana 011 & Gas (USA) Inc.
370 17" Street
Suite 1700
Denver, CO 80202
Effective Date: March 1, 2008
On December 2, 2004, Surface Owner executed and delivered to Operator a
Master Surface Use Agreement ("Agreement") and a Memorandum of Surface Use
Agreement that was recorded in Book 1669 at Page 356 of the Garfield County Records
and in Book 3875 at Page 153 of the Mesa County Records of the State of Colorado. The
Agreement covers the following lands (the "Property]"):
Township 7 South, Range 96 west 6th P M
Section: 33
Township 8 South, Range 96 West, 6th P. M.
Sections: 4, 5, 7, 8, 9, 16, 17 and 18
Garfield and Mesa Counties, Colorado
ft is the desire of the Surface Owner and Operator to amend the Agreement as set
forth below. Capitalized terms used, but not defined herein, shall have the meanings
given to them in the Agreement.
Por adequate consideration, Surface Owner and Operator amend the Agreement
as follows:
1. Article 111: Pipelines: is amended by adding the following paragraph after
paragraph A. 2.:
3) Operator may install one twenty-four (24) inch gas pipeline ("Collbran
Pipeline") which shall be located in the manner described on Exhibits A-1
through A-6 attached hereto and made a part hereof
Second Amendmemto Master Surface Use Agreement
1
2. Article IE. Pipelines: With regard to the Collbran Pipeline, Paragraph
A.2. and Paragraph D are amended by changing the Easement/Right-of-Way width
and route to a strip of land seventy-five feet (75') in width as depicted on the Right -
of -Way description as shown on Exhibit's A-1 through A-6 attached hereto and
made a part hereof. Furthermore, Surface Owner grants to Operator an additional
twenty-five feet (25') in width for a total of one hundred feet (100') in width as
shown between Point A and Point B on Exhibits A-1, A-2, and A-3. The Right -of -
Way shall revert to a permanent Right -of -Way fifty feet (50') in width after initial
construction, said permanent Right -of -Way being twenty-five feet (25') in width on
each side of the centerline described on Exhibit's A-1 through A-6.
3. Article VII. Payments: Paragraph 13.3. is amended by adding the
following sentence to the end of said paragraph:
Except as amended herein, the terms of the Agreement remain in full force and
effect. This Amendment shall bind and inure to the benefit of the parties and their heirs,
successors and assigns.
This Amendment is signed by Surface Owner and Operator as of the date of the
acknowledgment of their respective signatures, but is effective for all purposes as of the
Effective Date stated above.
SURFACE OWNER: OPERATOR:
By:
1 Steven . Keinath
. Keinath
2
Second Amendment to Master Surface Use Agreement
EnCana Oil R. Gas (USA) Inc.
Ricardo D. Gallegos
Attorney -in -Fact
May. 16. 2008 9:44AM No.0145 P. 3
ACKNOWLEDGMENTS
STATE OF COLORADO )
COUNTY OF GARFIELD )
The foregoing instrument was acknowledged before me an this 14 th day of
May, 2008, by Steven W. Keinath.
June 28, 2008
My Commission Expires:
STATE OF COLORADO )
COUNTY OF GARFIELD )
Notary Public
The foregoing instrument was acknowledged before me on this
May, 2008, by Sherry L. Keinath.
June 28, 2008
14th day of
1.57
My Commission Expires: Notary Public
STATE OF COLORADO )
CITY AND COUNTY OF DENVER)
The foregoing instrument was acknowledged before me on this day of
May, 2008, by Ricardo D. Gallegos, Attorney -in -Fact for EnCana Oil & Gas (USA) Inc.,
a Delaware corporation, on behalf of said corporation,
My Commission Expires: Notary Public
3
Second Amendment to Master Surface Use Agreement
Rom
aaama a wool 1
Omen N4. 'A7N 1
May. 16. 2008 9:45AM
No. 0145 P. 4
NORRI 1/4
SECIION 17
2007 ELM
ALUM. CAP
fA5T 1/18
/3/7.54',8EC? ' u7 1317.23',N681315'W, 59.60'
N64•43'30 -W, IBA RE I NSECTION 17
N8877'32"E 1 MUM. CAP N88'28'18"Ee 1�
" 'RRKAST
CORNER
P.D.E. No.
1
17
tedoRno
eB,ACNxnMIn M
o w RtMAM
IWNAL 5101E
N135'383413'314 111.11' z
9158'43'11"%, 716,37' 0
IR
A I
co 1
N3019T8'W, 12496' E47
"4 I
N36'26'14 E. 49278' i
POINT 'A• m I I
5104'49'.11'W, 223.37 Co
10
I
�eRom tomnM 1
smr. RPNAm
NI3'44'474t 214.36'
N1334'3614', 198.58'
11'37E, 180.68'
NI 4,8919$ 280.03'
an
— —.
NN115646'5214.25'"�n—r
n
E 3 m
3
m
6 1'2
fl
POR x "
�.. ^tt
1.17,.
1
Centerline of
Proposed Pipeline
SOILrs +/18
SccrNN 77
2 07 8LM
ALVMmUY am
O
Bi! N S943'55
5 � C 4045
1
1
4Es7 9/4
S007ION 18 �� /��
SOOT 6LM _ _ ((V/!,�)
V.N. CAC
NL:avw
itoroentmaReaw
Omr Bill
'.0.6 Na 2
Pm
1x
riAlip,, 1 , I
N045' 1 34.8
NONB'OB'W, 391.50'
Edge of Proposed Right—of—Way (typ)
0275'02"%, 189.46'
4io BSC 48.41'
4p9 4 385 L 90.5]'
2' 514, 5JW2. I
22'41'28 [ 4009'
8'52'.342-85 21143'
0652'30'W, 80.60'
101708'% ..
0,6 No. 1 N87'23'68'E, 2644.41
(15.65')
Scum 7/4 58723'28"W, 2645.48'
CCN/ER
2ECOLWswift
+T
RIGHT-OF-WAY LIMITS BOX
Reran:ne Points
FROM
TO
Work Spode
Left
Work Space
Right
P 0 8. Nv. 1
P.O.E, No. 1
55'
20'
P.O.B. No. 2
POINT "A"
30'
45'
POINT "A"
P.O.E. No. 2
50'
50'
50947NEA
SECTION 17
2007 950
ALUMINUM CAP
0
SOWN +/4
SECTION 16
1997 ALVM. CAP
L5 13,501
Extra Workspace Length = 1009.54 Leet
(from Point A to the P.P.E. No. 2)
LEGEND
0 PUBLIC LAW SURVEY CORNER
o ANGLE POINT
P.O.B. POINT OF BEGINNING
P.O.E. POINT OF ENDING
"DENT:
EnCana Oil and Gas (USA) Inc.
DESCRIPTION:
COLL8RAN PIPELINE— EXHIBIT ACROSS KEINATH PROPERTY
SECTIONS 16 & 17, T8S, R96W, MESA COUNTY, COLORADO
CALE. AS SHOWN711_1/M04129X08
DRAWN BY: CJT
DATE DRAWN: 2/12/08
PROJECT NUMBER: 07-04-24
**1�L
WASATCH SURVEYING ASSOOATES
M 9STREET. EVANSTON, WY 82930
�RVarINV (307) ATD6 94774
EXHJBIT A-1
SHEET
1 of 2
,May. 16. 2008 9:45AM
No, 0145 P. 5
LEGAL DESCRIPTION
A pipeline dgM•of-wayladed M the SW1/4 SW1/4 of Section /6, and 618 51/2 of
Secem 17, 783, R96W, 61h P.M., Mess County, Colorado, the centerline ofeatd
fight -of -Way being more pRrflculany described as follows:
Commencing at the Saahwest miner of said Seaioo 18 and running then
N 87'23'08" E, 15.86 feet along the south line thereof to the
POINT OF BEGINNING,
thence N 10'1708" w, 67.89 feet; bene NO6'5230'W, 80,60 feet to the
boundary Ilne common to aeld Sections 16 817;
thence continuing N 06'5230"W, 212.43 St
thence N 22'4128"E, 40.08 feet to said boundaryline;
tante continuing N 22'41'28'E, 67.16 feet thence N40'36'36' E, 131.62 feet
thence N 33'5740' E, 40.46 feet thence N 19 4355" E, 90.53 feet
thence N Q4'20'02" E, 46.41 fe0C thence N 02°25'02" W, 18946 feet
thence N 04°1608' W, 391,50 feet thence N 04°1201' E, 44,58 feet to the POINT
OF ENDING of this pad of said oergodille, said point lying on the Noah tyre ofsald
SWIM SW114 properly.
Also, Commencing at the Southeast comer ofsaid 3odfon 17 end ionnbe then
N 02°18'12" W, 1330.56 feet Meng the east be tlereofto the South one-et\teentf
comerofsaid Section 17; thence N 02'1822" W, 173.89 feet along said east lint
b the POINT OF BEGINNING;
thence 51131'1313r W, 202.59 feet thence N 73'39'16' W, 207.99 feet
thence N 79°19'00' W, 195,65feet thence Al 76"50.01"W, 184.58 feet
thence N75'46201'W, 23548 feet thence N 67410'64'W, 14&67 feet
thence N 75°10'12" W, 260.58 feet thence N 50°0800" W, 166.21 SC
thence N 77°44'00' W. 232,29 feet thence N48 3973' W. 180.02 feet
then N 18'0159" W, 18770 feet thence N 82°26'12' W, 81.76 feet
thence N 73°20'19' W, 15688 feet thence N 78"65'42' W, 98,14 feet
thence N83'3021'W,17022 feet then N 65'5126"W, 310,14 feet
thence N 11 °5678" E, 214.25 feet hence N 14°09'19'E, 260.03 feet
thence N93°41137' E, 188.68 feet thence N 13°34`38' W, 198.58 feet
thence N 13'44107" W, 214,36 feet thane* N 044931' W, 229.87 feet
thence N 382914"E, 492.76 feet thence N 300°1918"W, 124.96 feet;
then N 56'43'11' W,118,97 feat then AI 85^39.49"W 111,72 feet
thence N 84.43'30" W, 104.14 bet thence N 689315' W, 59,60 Met to the
POINT OF ENDING ofthls part of satd cenlerfine, said point atg on the
NoPor-BOUM CBntlrh'e of said Section 17.
Sold centedihe bathe 8884.18 ð length.
The base beefing for this survey being 613712.31.8' W, 204548 feet between
found monuments at the Southeast Come and the South One -Quarter Comer of
said Section 17.
RIGHT-OF-WAY LIMITS BOX
PROPERTY OWNER
Reference Points
FROM
TO
Work Space
Left
Work Spoce
Right
P.D.B. No. 1
P.O.E. No. 1
55'
20'
P. aft No. 2
POINT "A"
30'
45'
POINT "A"
P.C.E. No. 2
50'
50'
RIGHT-OF-WAY LENGTHS
PROPERTY OWNER
SECTION
FEET
TOTAL
KEINATH
Sec, 16, TMS RS6W
1140.17
1140.17
Sec. 17, T88 R96W
5644.01
5544.01
Total
6684.18
BASIS OF BEARING
The base bearing for this survey is
$ 877328" W, 2845.48 feet between found
monuments at the Southeast Comer and the
South One -Quarter Comer of Section 17, T8S,
ROW
CERTIFICATE' OF SURVEYOR
1, Ted Taggart of Frusta, Colorado hereby certify
that this map was made from notes taken
during art actual survey made by me or under
my direction for EnCana Oil & Gas (USA) Inc.
andthat the results of which are correctly
shown hereon.
Extra Workspace Length = 1009.54 feet
(cam Point A to the P.O.E. No. 2)
CLIENT!
EnCana Oil and Gas (USA) Inc.
DESCRIPTION:
CCLLBRAN PIPELINE- EXHIBIT ACROSS KEINATH PROPERTY
SECTIONS 16 & 17, T8S, R96W, MESA COUNTY, COLORADO
SCALE' AS SH 29/08
SHOWN
DRAWN BY; CJT
DALE DRAWN: 2/12/08
PROJECT NUMBER; 07-04-24
3URVEYEO 8Y:
WASATCH SURVEYING ASSOOATES
906 MAIN STREET, EVANSTON, WV 82930
(307) 7894545
EXHIBIT A-1
SHEET
2 of 2
May. 16. 2008 9:45AM
No. 0145 P. 6
o-
1-
WW
LL
2
LEGEND
PUBLIC LAND SURVEY CORNER
O ANGLE POINT
P.O.B. POINT OF BEGINNING
P.01. POINT OF ENDING
8405.3'46'1 170.47
POMt "A"
N40'5.148t 35.93'
A
N42511GT. 199.71'
N34o9'05'L, .37.86'
N2357'39'E, 114.81
N01'38'34T, 95.27'
N09.32'05'W, 56,69' 1
N3524YYW. 57.92'
N2943'58"W, J.676'
N16'4Y34'W, 84.89'
ob.
,Extra Workspace Length = 170.47 feet
(from Point A" to P.O.E.)
3w114
9EC10N8, TEORP9W
Owner: KeNATN
e:9r
scnc4r e
OLV
A,11 CEP
N0744'46114 124.34
N04'30'O131, I7&62'
N00Y0'S7'W, 149.26'
N04S2'51"W. 151.85
Centeriine of Proposed Pipeline
N617Y35'W, 145.08'
NO1x0'57.44 90.25'
14/11130'33t 13122'
N20'35'32'E, 12577
N3825'18'E, 9405
N4024'49'{ 163.38'
(2023.27')
N8T58'07 "E, 2604.32
N2,325'52'E, 166.65'
N1550167., 11286'
11+ Sectfor, Una
0062 )1CFaQ:
ME POW 4( ENDING 0.'M1
11 442966' E, 3651044r
& 5tCD 1 4 mom', Mit
NWI/4 SEI/4
BECTIONB, IBS MAW
Owner. BLM
Proper&Lhe
SW1/4BEI/4
BELTWN8, T68 MIN
Owner; KEINATH
4,.
Edge or Plwored
-ofYAP)
Se
Sect al 17
v4
4mMY CAP
CLIENT!
EnCana Oil and Gas (USA) Inc.
DESCRIPTION:
COLL6RAN PIPELINE— EXHIBIT ACROSS KENATH PROPERTY
SW1/4 SECTION 8, T8S, R96W, MESA COUNTY, COLORADO
SURVEYED BY:
E
scALE: AS SH
NSIGN' 29/08
SHOWN
Mtn WASATCH SURVEYING ASSOCIATES
iib
906 MAIN STREET, EVANSTON, WY 62930
uv@YEYINQ (307) 789-4345
DRAWN BY: CJT
DATE DRAWN: 2/1 2/08
PROJECT NUMBER: 07-04- 24
EXHIBIT A-2
SHEET
1 of 2
May. 16. 2008 9:46AM
No. 0145 P. 7
LEGAL DESCRIPTION
A pipegne tight-0I-waylcated In the E1/2 SW114 of Section & 788, R06W, 6th
P.M., Mesa County, Colorado, the centerline of said dght-of-way being more
padlculany described as Sows:
Commencing et the SouUn stoomarofeald Section 8 and running thence
N 87'68101' E, 2029.27 feet to the POINT OF eEGINNING;
thence N 15.50'M' E, 11268 feet
thence N29'25157 E, 166.55 feet
thence N 40°24'49° E 165.98 Met
thence N 38'251.9°E, 91.05 feet;
thence N 20°3587E, 125.77 feet
thence N 11°0039'E, (3512 feat
thence N01.5087° W. 00.25 feet
thence N01'1735' W, 145.00 feet
thence N04°32'51" W. 151.65 feat
thence N 00.40'57" W, 149.28 St
thence N 04°30108"E, 179.82 feet
thence N 07-44'46"W, 124,34 feet
thence N 1r°4234" W. 84.89 Met
them* N28'45'S8"W. 99.78 feet
thence N38124'17' W, 57.82 Met;
thence N 09'32175"W, 55.89 feet;
thence N 01°3854" E, 95.27 feet
thence N 09°573g"E, 114.81 feat
thence N34'O6w Q 37.08 feet
thence N 42'5126' E, 199.72 Met
thence N40'53'48' E, 53.93 reek
• thence N40°5948'E, 170.47 feet to the POINT OF ENDING, oak pont lying on
the East line ofsak SW1/4, N45°5550' E, 3502.85 Met rem the Southwest
comer tialeef.
Said centerline being 2542,95 Metro length.
The base bearing for this survey being N 57'58101' E, 2604.32 feet belwten found
mwmmenfs al the Southwest comer end the South One -Quartet comer of said
Section.
Extra Workspace Length - 170.47 feet
(from "POINT AN to P.O.E.)
RIGHT-OF-WAY LIMITS SOX
PROPERTY OWNER
Rafarence Points
FROM
TO
Work Space
Left
Work Space
Right
P.0.8.
POINT "A"
20'
55'
POINT "A"
P.O.E
20'
80'
RIGHT-OF-WAY LENGTHS
PROPERTY OWNER
SECTION
FEET
TOTAL
KEINATH
Sec. 8, TAS R86W
2542.35
2542.35
Total
2542.35
BASIS OF BEARING
The base bearing for this survey is
N 87°58101"E, 2804,32 feet between found
monuments at the Southwest Comer and the
South One -Quarter Comer of Section 8, TBS,
ROBW.
CERTIFICATE OF SURVEYOR
1, Ted Taggart of Frulta, Colorado hereby oartly
that this map was made from notes taken
during an actual survey made by me or under
my direction for EnCana 011 & Gas (USA) Inc.
and that the results of which we correctly
shown hereon.
CLIENT;
EnCana oil and Gas (USA) Inc.
DESCRIPTION:
COLLBRAN PIPELINE- EXHIBIT ACROSS KEINATH PROPERTY
SW1 /4 SECTION 8, T8S, R96W, MESA COUNTY, COLORADO
SH
OWN "2G"4/ATCII
VEYING
SCALE AS SH 29/08
SURVEYED 6Y:
DRAWN Br CJT
DATE DRAWN: 2/12/08
PROJECT NUMBER: 07-04-24
WASATCH SURVEYING ASSOCIATES
906 MAIN STREET. EVANSTON, WY 82930
(307) 789-4545
EXHIBIT A-2
SHEET
2 of 2
May. 16. 2008. 9:46AM
No. 0145 P. 8
6
CORNER WE NO1
RIE PANT or BECNryINC BEAM
S ,TOBB5" W, BSTae, FACT
FNIXI THE NCN B£.AgT CCNNEB
OF SECDON 8. TOS. RWW.
P.aa
m
Centerline of
Proposed Pipeline
Edge of Proposed
Right—of— Way NO
SEI/4 NEO/4
SECTION 8. TVS N98W
Owner. KEINATH
GARFIELD COUNTY
MESA COUNTY
Pre -
NORTHEAST'
CORNER
SL'cRN'1 8
aRTgNAL STONE
23
y
C4 ~ G
4Ni A
A4\U
fns P1 O oil, N
V
o # o N Y((A
1h [� pYJV
V, N 95 'clog &
9, 'I A 14
a
1/4 Section Line
Extra Workspace Length = 266.31 feet
(from Point 'W' to Point "819
1
ON
N
ec
A Q
M
A
b
ti
m
J
co
EASY I/4 CORNER
SECPO' 8
2007 BUT BRASS CAP
(W.C. 131.61' N. OF
ACTUAL CORNER)
0
is
m
O
P.O.E. , •
6 uoi3oas
LEGEND
PUBLIC LAND SURVEY CORNER
O ANGLE POINT
P.O.a. POINT OF BEGINNING
P.O.E. POINT OF ENDING
LIENT:
EnCana Oil and Gas (USA) Inc.
DESCRIPTION:
COLLBRAN PIPELINE— EXHIBIT ACROSS KEINATH PROPERTY
SE1/4 NE1/4 SECTION 8, TBS, R96W, MESA COUNTY, COLORADO
SCALE: AS SHOWN
RENSID4/29
/08
DRAWN BY: CJT
DATE DRAWN: 2/1 2/08
PROJECT NUMBER: 07-04-24
SURVEYED BY
Thy WASATCH SURVEYING ASSOCIATES
ATM 906 MAIN STREET, EVANSTON, WY 82930
SURVEYING (307) 789-4545
EXHIBIT 43
SHEET
1 of 2
May. 16. 2008: 9:46AM
No. 0145 P. 9
LEGAL DESCRIPTION
A pipeline right of way located In the 5E1/4 NE1/4 of Section 8, T8S, R96W, 6th
P.M., Mesa County, Colorado, the centerline of sald right-of-way being more
particularly described as follows:
Commencing at the Northeast comer of said Section 8 and running thence
S 30°3534" W, 2573.91 feet to the POINT OF BEGINNING, (the base bearing for
this survey being S 00433'15" E, 2010.36 feet between the Northeast Comer and
the East Ona'Quarter Comoro( said Section);
thence N 62°54'56"E, 20.69 feet;
thence N 85'08'19"E, 204,74 feet;
thence N 6328'04'E, 488.60 feet;
thence N 76'1741"E, 69.95 feet;
thence S 87°33'23'E, 145,55 feet,'
thence S 67°3323"E, 41.45 fest;
thence 5 55'50'16' E, 156.92 feet;
thence S 70'59158'1E, 67.84 feet;
thence N 58'57'46"E, 57.80 feet;
thence N 28.18'31"E, 144,79 feet;
thence N 54°4527"E, 144,47 feet to the POINT OF ENDING, said point lying on
the East line of sald Section, S 00°33'15" E, 1763,02 feet from the Northeast
Comer thereof.
Said centerline being 1543.68 feet In length.
Extra Workspace Length = 266,31 feet
(from Point 'A" to POINT "13")
1
RIGHT-OF-WAY LIMITS BOX
PROPERTY OWNER
Reference Points
FROM
TO
Work Space
Left
Work Space
Right
P.O.B.
POINT "A"
20'
55'
POINT "A"
POINT "B"
20'
80'
POINT "B"
P.0 E,
20'
55'
RIGHT-OF-WAY LENGTHS
PROPERTY OWNER
SECTION
FEET
TOTAL
KEINATH
Sea. 8, T85 R96W
1543,68
1543.68
Total
1543.68
BASIS OF BEARING
The base bearing for this survey is
S 00°33'15" if, 2610,36 feet between found
monuments at the Northeast Corner and the
East One -Quarter Corner of Section 8, 78s,
R96W.
CERTIFICATE OF SURVEYOR
1, Ted Taggart of Fnrlta, Colorado hereby certify
that this map was made from notes taken
during an actual survey made by me or under
my direction for EnCena Oil & Gas (USA) Inc.
and that the results of which are correctly
shown hereon.
CLIENT:
EnCana Oil and Gas (USA) Inc.
DESCRIPTION:
COLLBRAN PIPELINE— EXHIBIT ACROSS KEINATH PROPERTY
5E1/4 NE1/4 SECTION 8, TBS. R96W, MESA COUNTY, COLORADO
SCALE• AS SHOWN
SURVEYED BY:
REVISION:
4/29/08
DRAWN BY; CJT
DATE DRAWN; 2/12/08
iWASATCH SURVEYING ASSOCIATES
ATCII 906 MAIN MEET, EVANSTON, WY 82930
5IM' YINB (307) 789-4545
PROJECT NUMBER: 07-04-24
EXHIBIT A-3
SHEET
2 of 2
May. 16. 2008 9:47AM
No. 0145 P. 10
i
I
0 —
GARFIELD COUNTY
,MESA COUNTY ee,
Po
of P�,�ot
0gg't,
gl9n sed
BE1PINE1/4
SECnON a T8a RGOW
Owner. KEINA7N
iNOR HEA51 LEGAL. DESCRIPTION
CORNER TON 8 Apetal Wland locatedinthe SE1/4NEI/4of3ecliona, T68,
ORIGINAL STONE R96W, 661 PM, Orefield Cow*, Colorado, saki peroal befog more
(1) Peal:Olerp' described ea (ohms:
0
Commenting et the Northeast comer a saki SWIMS and running
G1 thence $ 00'33.16• E,1738.70 feet along the East One Mena to the
(' POINT OF BEGINNING, (the base bearing for this survey WAD
N --3 900'a9Y5'E,2610.36foot bohVaehthoNortheast Comer and the
CoCn EastOneC1uarter ComerofaaM Seaton);
Rl thence continuing 8 00'33'16' E, 19.461*
OV thence 8 88°0743"W, 29.11 feet
0 q /thenee N 6448771 E, 36,317 feat to the POINiOFBEGINNING.
Q Bald perm, oantsfreng 289 squats feet or0.01 acres, more or less.
W /
9
EAST 7/4 LORNnt
SECTION 8
2007 BLit BRASS CAP
(We. 131.8!' N. of
AGN/IL CORNER)
LEGEND
PUBLIC LAND SURVEY CORNER
O ANGLE POINT
P.D.B. PCW T OP BEGINNING
BASIS OF . BEARING
The base bearing for this sway is
5 00°33'75" 5, 2610.36 feet between found
monuments at the Northeast Comer and the
East One -Quarter Comer of Section 8, TBS,
R86W.
CERTIFICATE OF SURVEYOR
1, Ted Taggart of Fruita, Colorado hereby certify
that this map was made from notes taken
during an actual survey made by me or under
my dlrectlon for EnCana Gil & Gas (USA) Inc.
and that the results of which are correctly
shown hereon.
CLIENT;
EnCana OH and Gas (USA) Inc.
DESCRIPTION:
COLLBRAN PIPELINE- EXHIBIT ACROSS KEINATH PROPERTY
SEI/4 NEI/4 SECTION 8, T85, R96W, GARFIELD COUNTY, COLORADO
SCALE; AS SH
3URVEYFn 6Y:
OWE`AsIG 14/08
N
ilir1yy WASATCH SURWIWG ASSOCIATES
ATOR 906 MAIN STREET, EVANSTCN, WY 82930
SURVEYING (307) 789-4545
DRAPN BY: CJT
DAT DRANK: 2/12/08
PROJECT NUMBER; 07-04-24
EXHIBIT A-4
SHEET
1 of 1
May. 16. 2008 9:47AM
No. 0145 P. 11
N
Section 4
Section 9
SECca O4
=VIAL
9
CRWwAL fTOn6
RO.e.
(N80t7'43"4
727')
to
a
Owner. KEINATH
N87'26'1513E, 2661.41' P.O.E
Centerline of
Proposed Pipeline
(2200.63)
Edge of Proposed
Right—of—Way (typ)
?11111/4
COYIYF
SECTION 9
290 an
MULL LAP
N48'09'22E,
783.13'
N43'46'58'E, 538.74'
// N33'07'40"E, 142,40'
N50 48'214E, 46.85'
N6r9Y)7'45"E 13a 70'
moo.
N44.081S6"E 255.02'
7'20'54t, 283.37'
48'45'19t,, 252.17'
Property Line — v -- — — — —
N55'52'07"E, 507.96'
N51'22'36"E, 274.78'
N54'46'27"E, 247.85'
r
�r l
SECTICn 9
9007 an IMAMS CM
(N.0 131.11' N or ACTUAL
400 0 200 400
( IN FEET )
1
Section Litre
Owner. BW
Garfield County
Mesa County
1 4 Seattan Line
LEGEND
PUBIIC LAND SURVEY CORNER
O ANGLE POINT
P.0.9. POINT OF BEGINNING
P.O.E. POINT OF ENDING
CUNT:
EnCana 011 and Gas (USA) Inc.
DESCRIPTION:
COLLBRAN PIPELINE— EXHIBIT ACROSS KEINATH PROPERTY
SECTION 9, TBS, R96W, GARFIELD COUNTY, COLORADO
SCALE: AS SHOWN
nEwsa5/14/08
DRAWN BY: CJT
DATE DRAWN: 2/12/08
PROJECT NUMBER! 07-04-24
SURVEYED BY:
WASATCH SURVEYINO ASSOCIATES
906 MAIN STREET, EVANSTON, WY 82930
(307) 789-4545
EXHIBIT A-5
SHEET
1 of 2
May. 16. 2008 9:47AM
• LEGAL DESCRIPTION
A pipeline fight -Oe ay beefed In the NW1/4 of Section 9, TBS, R96W, eih P.M,
Garfield County, Colorado, the centadMe of said dghto/ aybeing more
particaledydescribed es follows'
Commencing at the NOdhwest comer of said Section 9 and running thence
$ 0033'15' E, 176616 feet along the West line thereat YAM M less, to the South
line of Gadbld County; thewwe N 88'07'43"E, 7.27 feet ebrg serf South line to
the POINT OF BEGINNING;
thence N 54.4627" 0, 24127 keV
thence N 51'2216' if, 274.78 feet
thence N 55'52er E, 607.96 feet
thence el48.4679"E, 262.17 feat
thence N 4720'54' E, 283.37 feet
Branca N44`08'S6"E, 255.02 keV
thence N e9'Or45" E, 158.70 feet
SWIM N60.4821' E, 56.85 feet
thence N 93'07'40"EE 14240 feet
thence N48°471918' E, 538.74 feet
thence N the North One Oof O 183.13
WSoden,N87°26'15" E, 2200.83 feel from the Northwest On
corner thereat.
Sold centerline being 2880.98 feet In length.
RIGHT-OF-WAY LIMITS BOX
Reference Points
FROM
P.O.6.
TO
PA.E
Work Spoce
Left
20'
Work Space
Right
55'
RIGHT-OF-WAY LENGTHS
PROPERTY OWNER
KFINATH
SECTION
Sac, 9, TBS R98W
FEET
2880.98
Total
CDENT:
EnCana Oil and Gas (USA) Inc.
SCALE' AS SHOWN EVIS10 /14/081 ORAWN 8Y: CJT
SURVEYED BY:
zrca
¢URVETIN®
TOTAL
28130.98
2880.98
No. 0145 P. 12
1
BASIS OF BEARING
The base beating for this survey Is
N 872615" E, 2661.41 feet between fbund
monuments at the Northwest Comer and the
North One -Quarter Comer of Section 9, T89,
R98W.
CERTIFICATE OF SURVEYOR
1, Ted Taggart of Fruits, Colorado hereby certify
that this map was made from notes taken
during an actual survey made by me or under
my direction for EnCana Oil & Gas (USA)
and that the results of which are correctly
shown hereon.
DESCRIPTION:
COLLBRAN PIPELINE- EXHIBIT ACROSS KEINATH PROPERTY
SECTION 9, T85, ROW, GARFIELD COUNTY, COLORADO
DATE ORAWN: 2/12 /08 I PROJECT NUMBER: 07-04-24
WASATCH SURVEYING ASSOCIATES
906 MAIN STREET, EVANSTON, WY 82930
(307) 789'-4545
EXHIBIT A-5
SHEET
2 of 2
May. 16. 2008 9:47AM
No. 0145 P. 13
I
1
NWV4 NEVN I
BEC)TONA Ta5MEMIY 1
Owner: KDNATH
I
SWIANEI/4
BECTKLN4, 1851N6W
Owner. KEWATN
P.O.E. No. 2
N84'18'18"E 72.36'
- 4 -
1
Centerline of
Proposed Pipeline
BIW/4
SEC11044, TBSItlAY
Owner KEJNATN
(2200.63)
SOUTHWEST N87'26'15"E,
• NER
S „ON 4 2667,411
ORIGINAL STONE
R,
P.O.E. No
1436'50'02T 96.05'
N45'15'29"E, 237.75'
N48'09'22'1E, 27800
P.O.B. No. 1
NW1/46E1/4
EMOPON 4.1R5TKBW
Owner KEINAII1
NEf/4 M1/4
SECRON4 T84 Pm9•'
Ovnx: COLOHAN
FAMILY TRUST
BEIANEIA
SEG NON 4. TBS WSW
OWAen COLORAN
FAMILY MUST
CORNER M WJlC:
Thr POINT 0F =NO No, 2 BOMB
6 21YB25" F 2130.11e TFEI
FROM MC ROAMEAST coo
OF SECRON 4, IAS AVM.
04170'47°W. 242,56'
0176'25"W, 206.73'
03.37'23'W, 244.95'
N4122'37"E, 114.54'
POINT
/41434'46 W, 239.80'
Edge of Proposed
1 Right -of -Way (typ)
N0235'02"W, 404.80'
O.B. No. 2rT—
NORTHEAST
CORNER
SECTION 4
yt005 ALUM. CAP
1 PLS 28595
6WWBEV4
BECMM4, TASR9VW I
Omer BW
NO3'46'27"W, 409.56'
(To P.O.E. No. 1
58577'54"W,
SOUTH 1/4 1265.96'
CORNER
SECTION 4
2007 BLM
ALUM. CAP
iV
Uf
OI
OT
Co
01
A
EAST 1/4
CORNER
SECTION 4
2007 BOA
BRASS CAP
z_
NJ Cr;
W W
W -a
RIOHT•OFWAY LIMITS BOX
Reference POITM1s
FROM
TO
Work
Left pote
WorRighk tOce
P.00, No, 1
P.O.E. No. I
20'
55'
P.O.B. No. 2
POINT 'A"
35'
40'
POINT 'A"
P.O.E. NO. 2
55'
20'
a5.28116"WEAST ,
CORNER ids 1263.8,3'
SECTION 4
2007 61N
BRASS CAP
SOUTH 7/i6
CORNER
SECTION 4
2007 BLM
BRASS CAP
z
tial
a-'
COO
SOUTHEAST
CORNER
SECT)ON 4
2007 ELM
ALUM. CAP
LEGEND
0
0
PUBLIC LANG SURVEY CORNER
ANGLE POINT
P.Q.B. POINT OF BEGINNING
P.O.E. POINT OF ENDING
QJ EN T:
EnCana Oil and Gas (USA) Inc.
OESCRIPPON:
COLLORAN PIPELINE- EXHIBIT ACROSS KEINATH PROPERTY
SECTION 4, T8S, R96W, GARFIELD COUNTY, COLORADO
SCALE: AS SHOWN
SURVEYED BY:
REV19og /12/08
DRAWN BY: CJT
DATE DRAWN: 2/12/08
PRO.ECT NUMBER: 07-04-24
WASATCH SURVEYING ASSOCIATES
908 MAIN STREET, EVANSTON, WY 52950
(707) 789-4545
EXHIBIT A-6
SHEET
1 of 2
May. 16. 2008 9:48AM
No. 0145 P. 14
LEGAL DESCRIPTION
A pipeline dghtbFwaylocated in the .5E114 SW1/4, the WW1/4 SE1/4, end the
SW1/4 NE1/4 ofSectbn 4, T$S, ROBIN, BUN P.M., Garfield County, Colorado, the
centerline &sail dghhmLway being more padladany described as Mows.
Commencing at the SODUMOsl comer of saki Section 4 end running thence
N 871615'E, 2200.83 Net along the South Nile thereof b tte
POINT OF BEGINNING;
thence N48°0927E, 278.00 feet thence N 45°1528' E, 237.15 feet
DOM N 36'S0'OY E, 9805 feet to the POINT OF ENDING of this bartofsaid
centertne, said point tying on the hest IMe of the SW1/4 of said Beckon 4,
N 03.4827 W, 400.56 Noncom the Sada one -Quarter of sold Section.
ALSO BEGINNING et a point Eying on bre South line of the NW1/4 SE1/4 018881
Section 4, seta point tying N 49°28'00" W, 1893.65 feet from me Southeast comer
ofsaldsecf oa
thence N 02•35172'W, 404.80 feet thence N 14'94'40• W, 299.80 feet
thence N419.2227"E, 114.84 teat thence N 03'3723"W, 244.VSfeet
Thence N01°1827" W, 200.73 feet thence N 04'0047" W, 242,66 feet
Woes N84°1618"E WO the POINT OF ENDING, saki point lying on
the East One Of Sold SW114 NE1/4 of said Seaton 4, from which point the
NOttheasfvanrerd'said Seaton tee N23'2825"E, 293008 feet
Bald centerline being 2136.04 feet in length.
The base besting for fhb description being N 8726'15" E, 2861.41 feet between
the SollthWeet ODmerand South one-quarter torero, sae Sedan 4.
RIGHT-OF-WAY LIMITS BOX
PROPERTYOWNER
Referencia Points
FROM
TO
Work Spate
Left
Wiwi/ Space
High
P.0.5. No. I
P.0.E. No. 1
20'
55'
P.0,8. No. 2
POINT "A"
35'
40'
POINT °A"
P.O.E. N0. 2
55'
20'
RIGHT-OF-WAY LENGTHS
PROPERTYOWNER
SECTION
FEET
TOTAL
KEINATH
P.O.B. 1 to P.O.E. 1
Sec. 4, TBS R9%W
611.20
2136.94
P.0.13. 2 to P.D.E. 2
Seo. 4, Tes R96W
1525.74
Tafel
2136.94
BASIS OF BEARING
The base bearing for this survey is
N 87"26'15 E, 2661.41 feet between found
monuments at the Southwest Comer and the
South One -Quarter Comer of Section 4, TBS,
R96W.
CERTIFICATE OF SURVEYOR
I, Ted Taggart of Fnlita, Colorado hereby certify
that this map was made from notes taken
during an actual survey made by me or under
my direction for EnCene 011 & Gas (USA) Inc.
and that the results of which are correctly
shown hereon.
EnCana 011 and Gas (USA) Inc.
DESCRIPTION:
COLLBRAN PIPELINE- EXHIBIT ACROSS KEINATH PROPERTY
SECTION 4, TBS, R96W, GARFIELD COUNTY, COLORADO
SCALE: AS SHOWN
R"9
/12 /08
DRAWN BY! OJT
DATE DRAWN: 2/12/08
PROJECT NUMBER: 07 -04 -24 -
SURVEYED BY:
WASATCH SUM/EURO ASSOCIATES
Pa:,n 906 MAIN STREET, EVANSTON. WY 82930
SURVIVING (307) 789-4545
EXHIBIT A-6
SHEET
2 of 2
COLOHAN PIPELINE EASEMENT
RIGHT-OF-WAY EASEMENT
FOR AND IN CONSIDERATION of the sum of TEN AND NO/100 DOLLARS
($10.00) and other good and valuable consideration, in hand paid to Colohan Family
Trust, William J. Colohan and Nadra B. Colohan, Trustees whose mailing address is
15393 Via La Gitana, Carmel Valley, CA 93924-9600 (hereinafter referred to as
GRANTOR), the receipt and sufficiency of which is hereby acknowledged, GRANTOR
hereby grants, sells, conveys and warrants to EnCana Oil & Gas (USA) Inc., whose
mailing address is 370 17th Street, Suite 1700, Denver, CO 80202, its successors and
assigns, (hereinafter referred to as GRANTEE) a non-exclusive and permanent easement,
fifty (50) feet in width, for the purpose at any time and from time to time to lay, locate,
construct, maintain, inspect, alter, repair, operate, protect, change the size of, replace,
relocate, mark, remove and/or abandon in place, a pipeline or pipelines and
appurtenances, equipment and facilities useful or incidental thereto, including, but not
limited to, valves, metering and corrosion control equipment, and any above -ground
appurtenances, as may be necessary or convenient, for the transportation of natural gas
and its constituents, water, petroleum, petroleum products, liquids and derivatives
thereof, upon and along a route to be selected by GRANTEE on, over, across and
through lands owned by GRANTOR, or in which GRANTOR has an interest, situated in
Garfield County, State of Colorado described as follows (the "Easement"):
Township 7 South, Range 96 West
Section 33: Portion SE/4
Section 34: Portion W/2
Township 8 South, Range 96 West
Section 4: Portion NE/4
GRANTOR further grants and conveys unto GRANTEE the right of unimpaired ingress
and egress on, over, across and through the above-described lands including other lands
owned, leased or claimed by GRANTOR which are adjacent thereto or contiguous
therewith for all purposes necessary or incidental to the exercise of the rights herein
granted, with the further right of entry to maintain the easement herein granted clear of
trees, undergrowth, brush, structures, and any other items, to the extent GRANTEE
deems necessary in the exercise of the rights granted herein. GRANTEE -shall -not -be
liable -for -damages -c..
-stnrctures; er-any-other-obsfraetions f -Yrtge
GRANTEE shall have the right to select, change, and/or alter the right-of-way easement
through the property above described or alter the route prior to or during construction
with the consent of the GRANTOR, which consent shall not be unreasonably withheld,
conditioned or delayed.
In the event GRANTEE constructs its pipeline or pipelines upon lands owned or held by
GRANTOR by virtue of prescriptive, petitioned, or presumed right of way with respect
to any Garfield County Road ("Obtained Rights"), GRANTOR agrees to grant and
convey unto GRANTEE the same Obtained Rights upon the same terms and conditions
as set forth in this Easement to the extent allowed under GRANTOR'S Obtained Rights.
GRANTOR shall have the right to use and enjoy the above-described premises;
provided, however, GRANTOR shall not exercise such use and enjoyment in a manner
that will impair or interfere with the exercise by GRANTEE of any of the rights herein
granted. GRANTOR shall not change the grade over the pipeline constructed hereunder
and shall not build, create, construct, or permit to be built, created, or constructed, any
obstruction, building, lake, engineering works, or any other type of structure over or on
said Easement without advance written consent of GRANTEE.
All equipment or appurtenances to the pipeline or pipelines, which shall be on or above
the surface of the ground, shall be installed in a manner to protect the GRANTOR'S
livestock when necessary. GRANTEE agrees that during construction of said pipeline or
pipelines, livestock crossings will be provided where necessary. Further, all fences that
must be severed or removed for installation and maintenance will be reinforced prior to
severing adjacent to where the cut is made to prevent damage to the fence line.
Temporary gates to preclude the escape of GRANTOR'S livestock shall be installed
where necessary. All fences that are cut or removed shall be restored in as good a
condition as existed prior to installation of the pipeline or pipelines.
GRANTEE agrees at the time of construction to bury said pipeline or pipelines to such
depth as will not interfere with lands under cultivation, and in accordance with applicable
federal and state regulations. Following installation of the pipeline or pipelines,
GRANTEE agrees to restore the ground as nearly as is practicable, to its condition prior
to the installation of the pipeline or pipelines and in accordance with federal regulations.
GRANTEE shall construct the pipeline and reclaim any areas disturbed during
construction in accordance with measures described in the Bureau of Land Management
(BLM) Plan of Development.
GRANTEE shall pay taxes, assessments or public charges levied or imposed upon its
Easement or upon other personal property, improvements or fixtures owned or placed by
it within the Easement subject to its right to contest same. In the event said taxes,
assessments or public charges are not separately assessed, then promptly following
written notice from Grantor, Grantee shall reimburse Grantor for any taxes, assessments
or public charges attributable to its Easement.
GRANTEE shall, at its sole expense, keep the lands subject to the Easement granted
herein free and clear of all liens and encumbrances resulting from GRANTEE'S and its
agents' activities on the said lands and shall indemnify and hold harmless GRANTOR
from and against any and all liens, claims, demands, costs, and expenses, including,
without limitation, reasonable attorneys' fees and court costs, in connection with or
arising out of any work completed, labor performed, or materials furnished with respect
to or by GRANTEE and/or GRANTEE'S agent.
GRANTEE warrants and agrees that it will comply with any and all laws, ordinances,
orders, rules, regulations, standards and licensing requirements of any state, federal,
municipal or local authority or agency having jurisdiction, now in force and effect or
which may be passed, enacted, issued, revised, required or later promulgated, incident to
or arising out of or in any way connected with Grantee's utilization of the Easement.
Grantee agrees that it will not discharge, dump, bury or store for purposes of treatment or
disposal, pollutants of any kind on the Easement including, but not limited to, pollutants
such as oil, chemicals, toxic substances or materials, hazardous wastes or hazardous
substances, including pollutants as the same may be defined, now or in the future, in any
federal, state, or municipal laws, rules, regulations or ordinances. Grantee specifically
agrees to fully indemnify and hold Grantor harmless from and against all claims,
demands, losses, costs of removal and/or clean up of pollutants, judgments, causes of
actions, fines, penalties, costs, including, but not limited to, reasonable attorney's fees
and costs of court, arising out of or connected with Grantees noncompliance with the
terms of this Easement.
It is expressly made a condition of the Easement that if GRANTEE, its successors or
assigns, shall abandon the Easement or any portion of said Easement for the stated
purposes of the Easement, then and in the event, all the rights herein granted shall cease
and terminate with respect to the Easement so abandoned; and it is further agreed that
nonuse of the Easement or any portion thereof for the purposes of said Easement for the
period of twenty-four (24) consecutive months along with an intent to abandon shall
constitute an abandonment. In the event of an abandonment of the Easement, GRANTEE
shall execute and record a re -conveyance and release and deliver to GRANTOR the
recorded instrument evidencing that the title to the Easement so abandoned is free and
clear of the burden of said Easement and free and clear of liens, encumbrances, clouds
upon or defects in the title to said Easement created or permitted to be created by
GRANTEE. Surviving any termination, it shall be Grantee's obligation to restore and
reclaim all land affected by Grantee's activities to the extent required by applicable law or
regulation or to its equivalent prior condition, whichever is greater, including, but not
limited to, the removal of facilities. At a minimum, the affected area shall be re-contoured
and re -seeded with Natural Resources Conservation Service approved seed in a manner to
prevent erosion.
Notice under this Easement may be made by one
States mails, telegram, facsimile, or be delivered
Land
Colohan Family Trust,
William J. Colohan and
Nadra B. Colohan, Trustees
15393 Via La Gitana
Carmel Valley, CA 93924-9600
party to the other in writing by United
in person to the following addresses:
EnCana Oil & Gas (USA) Inc
370 176 Street, Suite 1700
Denver, CO 80202
Attn: Team Lead, South Rockies
(303) 623-2300
This Easement shall be governed by and construed in accordance with the laws of the
State of Colorado, to the extent said laws do not conflict with any other federal statute.
TO HAVE AND TO HOLD unto GRANTEE, its successors and assigns, so long as the
right and easement herein granted, or any one of them shall be used by, or useful to
GRANTEE for the purposes herein granted and the provisions of this Easement are to be
considered a covenant that runs with the land herein described. The Easement and rights
herein granted may be transferred, leased or assigned, from time to time, in whole or in
part. It is agreed that any payment due hereunder may be made direct to said GRANTOR.
EXECUTED as of this day LXof lh�.r' ; 2008.
COLOHAN FAMILY TRUST
Inc.
// / i L.
William J. Colo
an, Trustee
dra B. Colohan, Trustee
STc
EnCana Oil & Gas (USA)
Ricardo D. Gallegos 5 r -
Attorney in Fact
STATE OF COLORADO
)
)ss:
CITY AND COUNTY OF DENVER)
This instrument was acknowledged before me on this day of _
, 2008, by Ricardo D. Gallegos as Attorney in Fact of EnCana Oil & Gas
(USA) Inc., on behalf of said corporation.
County
MY COMMISSION EXPIRES:
STATE OF C :::
COUNTY OF
)
)
Notary Public in and for said State and
Residing at :
)ss:
This instrument was acknowledged before me on this l 3i;; day of
2008,by 1 C:,
County
MY COMMISSION EXPIRES:
STATE OF
COUNTY OF f ! .,-/ r
This instrument was acknowledged before me on this giti. day of
)
)
Notary Public in and for said State and
Residing at :
)ss:
04.0‘ MICHAEL J. MENDENHALL
;- COMM. # 1793660
• MUM PUALIC•CALIFORNIA
WAR' J MON(EAEY COUNIX
n n MY COMM. EAP. APR 2
2008, by .
MICHAEL 1 MENDENHALL 1<
COMM. p 1793660
NOTARY PUBLIC• CALIFORNIA Vi
MONTEREY COUNTY
MY COMM. EXP. APR. It, 2012
Notary Public in and for said State and
County
Residing at : »I2„ ; ec,
MY COMMISSION EXPIRES:
rl of
LEGEND
PUBLIC LAND SURVEY CORNER
O ANGLE POINT
P.0..6. POINT OF BEGINNING
P.O.E. POINT OF ENDING
RIGHT-OF-WAY LIMITS BOX
Reference Points
FROM
TO
Work Spoce
Left
Work Spoce
Right
P.O.B.
POINT "A"
20'
55'
POINT "A"
POINT "B"
< 20 (Varies)
55'
POINT "B"
P.O.E.
30'
45'
Section 33
Owner KEINATH
,ITN 1/4 /
CORNER /
swoon 33
2001 eLL/
ALUM. CA
io
/
/ .
/
/ / N410'01'36"E. 258.01'
/ / J
c/
J
YL
Owner PPPING ETAL
NEST 1/4
CORNER
SEC110N 34
ORIGINAL STONE
P.O. E
N01'58'35'W, 382.88'
N68'12'00 -E, 211.87'
86'28'44"E, 302.22'
\J\
1/4 Section Line
GORIER nE SVIE
TIE PONT Of DOW EVAS
5 envie'''. 70I.54 FEET
PROW IHE IRST WC- WASTER
GORIER Or =DON N. In'. Rflw
N43'36'19.1�
NI3'05'39"W, 163.62'
N06'01'55"W, 168.14'
N18'40'351W, 192.84'
N46'59'29'E, 146.79'
/..41'37'44"E, 235.38'
POINT "B"
7N41'31'44"E, 39.23'
P.O.S.L.
N4131'44"E, 77.32'
,N3805'17'E, 130.24'
POINT "A"
NO6'02'11"W, 82.46'
N231'33'59'E, 105.10'
/
1
N36'54'50"E, 93.35'
N47'47'16"E, 362.47'
1%i
Owner: COLOHAN
FAMILY TRUST
N51'12'27 E, 237.16'
N4519'00'E, 83.32'
/ ' NO3'48'15"E, 83.71'
7'56'09"E, 289.48'
(1175.44')
18'33"E, 36.63'
S87118'35 'W, 2642.89
P.O.S.L.
N56'18'331, 56.00'
N6098'02"E, 80.31'
N67'32'344E. 27.19'
CORNER TC NOTE:
ME PONT Of &CYNWC SEMS
5 6454'49' W 171158 Pref
0500 041 640505350 CONNw
Of SEC/ICH 4. 065. 9%w
Section 4
4,
NE1/4 NEI/4
SECTION 4, 78S R96W
Owner: COLOHAN
FAMILY TRUST
Section 34
NOtmEAST Section 3 N87•16'5 °E, 2642 35 Baum V+
CORNER CORNER
SECTION 4 2004410N 34
2005 ALUM. CAPALUM. CAP
FLS 26595 P15 27613
Edge of Proposed
Right—of—Way (typ)
Centerline of
Proposed Pipeline
Section 34
Owner: COLOHAN
FAMILY TRUST
n
0
u
y
Section 3
CLIENT:
EnCana Oil and Gas (USA) Inc.
DESCRIPTION: COLLBRAN PIPELINE— EXHIBIT
ACROSS COLOHAN FAMILY TRUST PROPERTY SECTION 4, T8S, R96W,
AND SECTIONS 33 & 34, T7S, R96W, GARFIELD COUNTY, COLORADO
SCALE: AS SHOWN
REVISION:
DRAWN BY: CJT
DATE DRAWN: 2/12/08
PROJECT NUMBER: 07-04-24
SURVEYED BY:
0II�SURVEYING
ITCH
WASATCH SURVEYING ASSOCIATES
906 MAIN STREET, EVANSTON, WY 82930
(307) 789-4545
EXHIBIT A
SHEET
1 of 2
LEGAL DESCRIPTION
A pipeline right-of-way located In the NE1/4 NE1/4 of Section 4, T8S, R96W, the
SE1/4 SE1/4 of Section 33, and the W12 S W1/4 of Section 34, T7S, R96W, 6th
P.M., Garfield County, Colorado, the centerline of said right-of-way being more
particularly described as follows:
Commencing at the Northeast comer of said Section 4 and running thence
8 84.04'49" W, 1371.68 feet to the POINT OF BEGINNING (the base bearing for
this description being N 02°10'42' W, 2740.56 feet between the Southwest comer
and West one-quarter comer of said Section 34, 1178, R96W);
thence N 67°3234'E, 27.19 feet thence N 80°18'02" E 80.31 feet;
thence N 56°18'33-E, 56.00 feet to a point on the South line of said Section 33
lying S 87°18'35' W, 1175.44 feet from the Southeast comer thereof:
thence continuing N 56'1833"E, 36.63 feet thence N 47°56'09' E, 289.48 feet
thence N 03°4815'E, 83.71 feet thence N 45'19'00" E, 83.32 feet;
thence N 511227'E, 237.16 feet thence N 41°4716'E, 362.47 feet
thence N 40°0136"E 258.01 feet thence N 36°54'50'E, 93.35 feet
thence N 23'33159" E, 105.10 feet thence N 06°0211' W, 82.46 feet
thencethence N 38°05'11'E, 130.24 feet
the West line o said Section 34 ygl NN 02f 10'42"feet point on
W, 133 93 feet from the
Southwest comer thereof,
thence continuing N 41°31'44"E, 39.23 feet thence N 41'3144" E, 235.38 feet
thence N 46°5929"E, 146.79 feet; thence N 18°4035"W, 192.84 feet
thence N 06°0135' W, 168.14 feet thence N 13°05'39"W, 163.62 feet
thence N 43°3619'E, 115.10 feet; thence N 86'28'44'E, 302.22 feet
thence N 68°12'00° E, 211.87 feet; thence N 01°5835' W, 382.88 feet to the
POINT OF ENDING of said centerline, said point lying S 87°52'18'E, 791.54 feet
from the West one-quarter comer of said Section 34.
Said centerline being 3960.81 feet in length.
RIGHT-OF-WAY LIMITS BOX
Reference Points
FROM TO
Work Space
Left
Work Space
Right
P.O.B.
POINT "A"
20'
55'
POINT "A"
POINT "6"
< 20' (Varies)
55'
POINT "B"
P.O.E.
30'
�5'
RIGHT-OF-WAY LENGTHS
PROPERTY OWNER
COLOHAN FAMILY TRUST
SECTION FEET
Sec. 4, T8S R96W 1 163.50
Sec. 33, T7S R96W 1839.24
Sec. 34, T7S R96W 1958.07
Total
TOTAL
3960.81
3960.81
BASIS OF BEARING
The base bearing for this survey is
N 02°10'42" W, 2740.56 feet between found
monuments at the Southwest Comer and the
West One -Quarter Comer of Section 34, T7S,
R96W.
CERTIFICATE OF SURVEYOR
I, Ted Taggart of Fruita, Colorado hereby certify
that this map was made from notes taken
during an actual survey made by me or under
my direction for EnCana Oil & Gas (USA) Inc.
and that the results of which am correctly
shown hereon.
CLIENT:
EnCana Oil and Gas (USA) Inc.
DESCRIPTION: COLLBRAN PIPELINE— EXHIBIT
ACROSS COLOHAN FAMILY TRUST PROPERTY SECTION 4. T8S, R96W,
AND SECTIONS 33 & 34, T7S, R96W, GARFIELD COUNTY, COLORADO
SCALE:AS SHOWN I REVISION:
SURVEYED BY
DRAWN BY: CJT
DATE DRAWN:2/12/08 1 PROJECT NUMBER: 07-04-24
eURSATCH
VEYING
WASATCH SURVEYING ASSOCIATES
906 MAIN STREET, EVANSTON, WY 82930
(307) 789-4545
EXHIBIT A
SHEET
2 of 2
TIPPING ET AL. PIPELINE EASEMENT AGREEMENT
T. 7.91
T. 8 S.
GS LLC
ti
T
F--
OCCIDENTAL OIL
SHALE ETAL
,+
s
B.L.M.
2T
BLM
BLM
31
30
1
BLM
sT
BLM
29
BLM
28
B. L.M.
1
SEE MAP
2409-284
I T
5+ 6T
SK
HOLDING
SMALL -
WOOD
ETAL
6
BLM
SK HOLD! LLC
ILM
I
41 31
SK HOLDINGS LLC
6.+.
k-'
-1
O 7
SPECIALTY
& STOCKTON tic
RESTAURANT �,
D &
ANHOO
TRUST
LLEY
KEINA
eT
Meta/ Building
eT T
1
♦
••
/(
•
3
Proposed
Collbran Pipeline
6
TY
:KTON BLM
RANT -
4
e'
GARFIELD COUNTY
MESA
_TY
:KTON
RANT
1
129
10
a
B.L.M.
►
►
►
0
•
•
KEINATH ;
•
•
KEINATH
COLOHAN
FAMILY
r
►
1
1
JOLLEY
ELEV. 6.210
•
•
KEINATH
•
•
•
• B..M
•
COUNTY
SPECIALTY 7
& STOCKTON
RESTAURANT
0
RIfRFAI1 nF
BUR.
OF
REC.
BLM
KEINATH
8• �•
♦"BLM
•
••
BLM
Approx.
County Line
GARFIELD
MESA
KEINATH
BLM
B.L.M.
COUNTY
COUNTY
BLM
BY
DA TE
REFERENCES
GARFIELD COUNTY PARCEL MAPS
.... • • Proposed Pipeline (Approx. Location)
+1- 3.8 miles across Garfield County