HomeMy WebLinkAbout1.0 ApplicationI
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APPLICATION
SPECIAIJCONDMIONAL USE PERM IT
Pnlg; February 16, 1995
Applicant:
dddress of Applicanr:
Special/Condirional Us:
Legal Descriprion:
- Eggi4uing on the west side of the Roaring {,ork Ri-ver,east to the Garf i.ld Co,rn lrg1r,
exisring pSCO
230 kv east-west transmiss
Practical Descnption (rocation with respect to highways, county roads, and residenccs):
See attached maps rhaE show rhe proposed pipeline ali.gnmenc
Requircments:
I ' Plans and spccifications for proposed usc (hours of operation, numbcr of vehicleJday,location and sizc of structurcs, crc.).2' Existing or proposcd method ofscwagc, sourcc of disposal and watcr. ft6sd acce<s xsdothcr information decmed noccssary to explain proposed usc.3' A vicinity map drawn to scare depicting it " .ruj""t p-r*.ty, Iocation, and usc ofbuilding and structurca on a_djaccnt lo[s.4' An impact statcment on the proposed use where rcquired by scctions 5.03-5.03.12 ofTawng Regulations.
5' A copy of Assessocs map showing property; and a listing of all adjoining propcrtyownen ofsaid property.
6' A base fec of s 4 2 5 ' 00 shall be charged for each application and shall besubmirted with thc application, a<Jditionar ct aiges *"y L" imrrosed irl"r*, *ri"*cosls exe.d the base fee.
7 ' Attach a copy of proof of ownership for your property (deed, titte insurancc).
If public noticc is t=quiq, notice providcd by rhe Planning Department sha[ bc scnt out at teastfiftecn ( l5) days prior to hearing by return-receipt mait to utt tt
" above noted a-djoining propcrtyowners' Mailing is the applicant's responsibility and proof of mailing must bc prescntcd at thehearing' Additionally, thesarnenoticcshall be published one ( l) timc in the oflicial county nanspapcrat least rfteen (15) days prior to such heanng date. Applicanr'shai;; the cost of pubtication andbc responsible for presenting thc ,,proof of iublicatioi, ,, ,t . n*Jng.
The above information is correct to the best of my knowledge.
Public Service Companv of Colorado
Lockv Mountairl Natural Gas Comoanv
APPLICATION TO
GARFIELD COUNTY
FOR SPECIAL USE PERMIT
RIFLE-AVON NATURAL GAS PIPELINE PROJECT
PHASE II
Prepared by:
Public Service Company of Colorado
Rocky Mountain Natural Gas Company
February 1995
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TABI,E OF CONTENTS
Land Use Application Form
Introduction . .
Purpose and Need
Right-of-Way Requirements/Easements
Desigu Characteristics
Construction Procedures
Reclamation/Revegetation Plan
Section 5.03.07 - Industrial Operations - Impact Statement
LIST OF FIGTJRES
Figure 1 - General Location of the Proposed Natural Gas Pipeline . . . . . . 3
Figwe 2 - Typical Block Valve Set 10
Figure 3 - Typical Cross Section on Sloped Tenain 12
Figure 4 - Cross Section on Flu Tenain 13
FigureS -PipelineCorutructionSeE^rence.. ......14
TABLES
Table 1 - Names & Addresses of Adjacent Property Onrners
APPENDIX - Erosion Control Procedures and the Revegetation Plan for
Phase II of the Rifle to Avon Natural Gas Pipeline Project
i\{APS
Map 8 and 9 - Proposed Gas Pipeline Alignment
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Introduction
Public Service Company of Colorado (PSCo) and Rocky Mountain Natural Gas
Company (RMNGC) submit this Special Use Permit Application pursuant to Colorado
Revised Statute 3G28-110 and Section 5 of the Garfield County Zonng Resolution for the
construction, operation, and maintenance of a 12" natural gas pipeline between Rifle and
Avon. This pipeline will deliver natural gas to both companies' existing systems at
Glenwood Springs, Gypsurq Eagle, Edwards, Avoq and other points. See Figure I - General
Location of the Proposed Nuural Gas Pipeline.
The project has been divided into two construction phases. Phase I, which included
the pipetine from Rifle to Glenwood Springs, received Garfield County approval in May
1994 and was constructed in that same year. The Phase II portion of the pipeline within
Garfield County is from the Roaring Fork Valley, east to the Garfield County line in Range
87 West, Township 6 South, Section 28. The proposed pipeline will parallel the existing
PSCo 230kV east-west transmission line e:Nement located south of Glenwood Springs.
Approximately 10 miles of the Phase II portion of the project is located within Garfield
County. See Maps I and 9 - Proposed Gas Pipeline Alignmeru.
The construction of the gas pipeline within Garfield County is anticipated to begin
in June 1995 and to be completed in September 1995. The construction schedule indicates
the cross county pipeline construction from the east side of the Roaring Fork Valley east
to the Garfield County line will begin in June, with completion by the end of June.
Revegetation will occur in late June to mid-July. The construction work within the Roaring
Fork Valley is scheduled to begin in mid-August with completion by the end of August.
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Revegetation of the disturbed area will take place the first two weelcs of September. This
is a tentative schedule and is subject to change due to weather conditions and construction
activities.
An Environmental Assessment (EA) for this project has been prepared and approved
which assessed the potential impacts of the proposed and alternative pipeline routes in
terms of human, natural, and cultural resources. Other documents submitted with the EA
included: a "Specialist Report for Threatened, Badangered, or Sensitive Species", and a
"Wetlands Specialist Report". These documents were submitted to Garfield County during
the Phase I, Special Use Application approval process.
The proposed gas pipeline route crosses federal land managed under the Glenwood
Springs Resource Management Plan of the Bureau of Land Management (BLM 1988). A
Right-of-Way Grant has been issued by the BLM, Serial Number COC-54361. The U.S.
Army Corps of Engineers has also issued Nationwide General Permit Number 12 which
authorizes the discharge of dredged and fill material in water for utility line bacldll and
bedding, provided that certain standard conditions are met.
Permits have also been received from the Colorado Department of Health for an Air
Pollution Emission Notice (APEN) and a Stormwater Discharge Permit.
Additional permits thatwill be required include a Hydrotest Water Discharge Permit,
Utility Installation Permit for State Highway Crossings, County Road Crossing Permits, and
a Railroad Crossing Permit. These permits will be obtained prior to construction.
Pumose and Need
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RMNGC provides natural gas to a large portion of the western slope of Colorado,
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including the towns of Telluride, Montrose, Olathe, Glenwood Springs, and Aspen. The
RMNGC service territory has seen substantial gowth in the demand for natural gas.
Currently, some of RMNGC's pipelines do not have the capacity to move the increasing
volumes of natural gas from the traditional areas of production to the locations where
customer demand is the greatest.
RMNGC meets its service requirements through a mixrure of stored gas and
dedicated, terul and spot gas purchases. Spot purchases account for nearly one-half of the
system's peak-day deliverability, but are not a desirable long-term solution to the shortfall.
RMNGC has little or no control over such supplies, especially those connected to, and
flowing through, other companies' pipelines. Without that control, the supply could be
intemrpted.
A majority of the total gas requirements on RMNGCs system are served to
customers east of the town of Collbrarl Colorado (the East-end Subsystem). Glenwood
Springs, Aspeq Eagle, and other towns receive their natural gas from this Subsystem. The
only significant source of supply connected to this Subsystem is the Wolf Creek Storage
Field. The ability to bring gas into this area from the remainder of the system is limited by
the capacity of the pipeline from Collbran. As a result, growth in demand will soon outstrip
the abitity to deliver gas to these markets. This lack of capacity may soon prevent RMNGC
from refilling its storage field during the lower demand summer months for withdrawal
during the higher demand heating season.
RMNGC has identified trvo alternatives that address the future demand for natural
gas in the East-end Subsystem. The alternatives are: (1) Contract for additional supplies
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north or south of Collbran and expand the existing pipeline system to move the additional
gas into the East-end Subsystem; or (2) Construct a new pipeline from Rifle to Avon to
serve the growing demand.
The first alternative would require substantial upgrade to the existing pipeline system.
New facilities, as well as the construction of new pipelines that would parallel existing
pipelines, would be required between the towns of Collbran and Avon. This alternative
involves additional pipeline construction and is more costly than the second alternative,
which is building a new pipeline between Rifle and Avon.
The Rifle to Avon pipeline alternative is the preferred course of action for several
reasons. First, it would access supplies that are closer to East-end market areas. A more
diversified supply portfotio promotes price competition and lessens the likelihood of
significant disruptions of supply. Second, it would allow RMNGC to use its Wolf Creek
storage field to a greater degree by providing flexible storage injection capacities. Third,
it would loop facilities east of Glenwood Springs which would increase the system's overall
reliability. Finally, it would facilitate a high-capacity interconnection between RMNGC and
PSCo that would provide back-up capability for both systems.
PSCo serves many of the mountain communities east of RMNGCs East-end
Subsystem. These communities include tradville, Vail, Copper Mountain, Breckenridge,
Silverthorne, Dillon, Winter Parlq and Grandby. Uke RMNGC, PSCo is experiencing
substantial glowth in the demand for natural gas.
PSCo provides natural gzs to the mountain communities via a high-pressure system
originating in huiwille, Colorado. This supply system is operating at ma,ximum capacity.
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The current system cannot meet the expected demand for natural gas.
PSCo has identified trvo alternatives that could address the future demand for natural
gas in the mountain communities it serves. The alternatives are: (1) Modify the existing
system, including reinforcing the high-pressure pipeline system from l-ouisville, to provide
the needed capacity; or (2) Build a pipeline from Rifle to Avon to serve the growing
demand. The second alternative is the preferred course of action due to the higher costs
and the environmental impacts associated with modifying the existing system in alternative
one.
RMNGC and PSCo have entered into a joint project to construct the Rifle to Avon
Natural Gas Pipeline. The proposed project will resolve the capacity concerns that are
currently being experienced by both companies, as well as consolidate the construction and
operation of gas facilities on the western slope.
Right-of-Way Requirements/Easements
The gas pipeline will require a 50' easement for the construction, operation and
maintenance of the facility. The pipeline will share an established utility corridor in
Garfield County by overlapping the PSCo 230kV east-west transmission line eznement
located south of Glenwood Springs.
Easements to construct the proposed gas pipeline will be purchased from the affected
property owners. Negotiations are currently underway with property owners to obtain the
necessary easements. Every effort will be made to acquire these rights through negotiations
with each landowner; however, if necessary, eminent domain proceedings will be initiated
to obtain the necessary land rights. PSCo is a public utility authorized by the statutes of this
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State to acquire property by eminent domain (CRS 1973:38-5-105), which provides for an
impartial commission or jury of fee holders in the county or city, as appropriate, to establish
the value of the land rights being acquired and the amount of damages, if any, due to the
owner.
The pipeline alignment will be finalized once all easements have been obtained;
therefore, minor adjustments in the pipeline alignment may be necessary.
Names and addresses of adjacent property owners are shown in Table 1. This
information was obtained from the Garfield County Assessor's records.
Design Characteristics
The project consists of approximately 10 miles of buried 12" steel gas pipeline within
Garfield County. The ma:rimum desigu flow rate for the project is 90 million cubic feet per
day (MMc{d) of natural gas, based on a ma:rimum allowable operating pressure (MAOP)
of 1,200 pounds per square inch gauge (psig) for the 12" pipeline.
PSCo and RMNGC will obtain a 5Gfoot or less wide permanent right-of-way for the
maintenance and operation of the pipeline. In areas where additional right-of-way is
required for construction purposes, a temporary construction easement will be obtained from
the property owners. The design and construction standards of the Rifle - Avon gas pipeline
are in conformance with the requirements of Title 49 of the Code of Federal Regulations
(CFR), Part Lgz,"Regulations for the Transportation of Natural and Other Gas by Pipeline:
Minimum Federal Safety Standards" (U.S. Department of Transportation IDOTI
regulations). Design and construction will also meet the requirements of all other
applicable federal, state, and local laws, rules, and regulations and will be in general
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compliance with industry standards.
The minimum depth of cover for the pipeline witl be in conformance with Title 49
CFR, Part t92.327. Geterally, the minimum depth of cover will be 30' in normal soil and
18" in consolidated rock. Depth of cover at all major river and stream crossings will range
from a minimum of 24" in consolidated rock to a minimum of 60" in normal soil.
Major river and stream crossings will be engineered and constructed using normal
industry procedures, and will be performed during low flow conditions whenever possible.
River and stream crossings will be made as close to perpendicular as possible. The U.S.
Army Corps of Engineers will be notified at the time of construction of all streams and
rivers to be crossed.
A Special Use Application has been submitted separately to Garfield County for
permission to cross the floodplain of the Roaring Fork River.
Sectionalizing block valves wilt be required for the pipeline and will be installed in
accordance with the requirements of the DOT Safety Regulations (Title 49 CFR) and other
applicable codes and regulations. Several block valves are planned for Garfield County and
are spaced approximately at 8 to 20 mile intervals, depending on population density. See
Figure 2 for a typical block valve set.
Individuat sections of pipe will be welded together in conformance with Title 49 CFR,
part 192, Subpart E, and API 1104. All welds witl be visuatly inspected by a qualified
inspector and radiographically inspected. Any defects will be repaired or removed as
required by the specific regulations and standards.
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The pipeline will be protected against corrosionwith coating and cathodic protection
devices. The pipeline will have an external coating of fusion-bonded epoxy measuring
between 14 mil nsmina], arrd t211il minimum.
At the time of application, there are no plans for locating any staging areas along the
pipeline route. However, if staging areur are required, they would be located along the
right-of-way where major crossings are encountered, such as a highway or creek crossing.
The size of a staging area would be approximately 100 feet by 100 feet and would overlap
the pipeline easement.
Construction Procedures
Pipeline construction involves a sequence of activities which are all related and must
follow one another in succession. The general order involves staking the right-of-way,
clearing and grading, trench excavation, stringing the pipe, bending the pipe, welding the
pipe, Iowering the pipe into the trench, bacldlling the trench, testing the pipe, cleanup, and
lsslamation. Figures 3, 4, and 5 illustrate the typical pipeline construction activities.
The contractor wilt clearly stake the edges of the construction right-of-way prior to
clearing and grading activities. The contractor's personnel will be required to stay within
these boundaries unless otherwise authorized by the a^ffected landowner.
Preparation of the right-of-way will vary with groundcover and slope. In areas with
vegetative cover, crews will cut the vegetation as necessary for construction within the right-
of-way. In areas with uneven terraiq construction crews also will grade the rights-of-way
as necessary to ensure safe working conditions. Where this Sading is unnecessary, the root
structure witl only be removed above the trench. By leaving t.he plants' root systems intact
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over most of the right-of-way, the opportunity exists for many of the plants to recover by re-
sprouting when reclamation is complete. Also, the undamaged roots help hold the soil,
reducing the potential for erosion. All large rocls and cut vegetation will be temporarily
stockpiled along the right-of-way's edges.
After crews have prepared the right-of-way, they will excavate the trench. Trenching
would be used for all portions of the pipeline not bored. Normally, a rubber-tired backhoe
or track-mounted excavator will be used to open the trench. The trench will be deep
enough to provide a cover over the pipeline that will meet or exceed D.O.T. cover
requirements. The trench will be a minimum of.24 inches wide.
Segregation of the topsoil may be needed in some areas, such as in agricultural fields.
ln those areas, RMNGC will stockpile topsoil separately from subsoil and will place subsoil
in the bottom of the trench and topsoil on top when bacldlling the trench.
In areas where bedrock is too solid or extensive to trench, RMNGC will use
pneumatic hammers or blasting to remove the rock. After the trench is opened, the pipeline
will be placed with appropriate padding material, or rock shield in rocky terrain, and the
trench backfilled. Crews will use the same procedures to bacldll the trench as described
above.
Placement of the pipeline will begin after the trench is completed. In order to
minimize corrosion, the pipeline will be 100 percent externally coated with a suitable
coating. Piping joints of externally-coated pipe will be strung beside the trench, bent to fit
any slope in the ditch, and welded together on skids. The welded joints will be
radiographically inspected for weld defects and any rejected welds will be repaired or
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removed. The exposed weld at the joint will be externally coated and the entire pipeline
coating electronically inspected for defects prior to placing the pipeline in the trench.
Crews will begin bacHilling the trench shortly after ttre final inspection and approval.
Depending upon local conditions, crews will use either a rubber-tired backhoe, truck hoe,
motor grader, or small bulldozer to bacldill the trench. Suitable bacldll materials will be
placed under and around the pipe to provide proper support.
Over most of the route, backfill material will consist of the native material excavated
during trenching. However, some rocky areas may need to be backfilled with imported
materials to protect the pipe coating and provide proper support around the pipe. If crews
use imported materials, the materials will meet the requirements of the landowner or
controlling jurisdictions.
When boring is the agency-approved method for pipeline crossings, the normal
process is as follows. First, crews excavate a push pit to the bore's depth. The pit contains
the drilling and jacking equipment and its operators. The normal boring process involves
driving a rotating auger at the front of the drill pipe to be installed under the crossing from
the push pit. Material excavated by the auger is carried back out of the bore into the pit.
The process continues until the bore is completed into the receiving pit (an excavation of
the opposite side of the structure permitting access to the auger). In the final step, crews
extract the auger, install the carrier pipe, cleaq and connect the pipeline. Crossinp will be
uncased whenever possible to allow cathodic protection to the carrier pipe thereby
increasing the life and safety of the pipeline while avoiding corrosion-related failures due
to casing shorts.
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Once in place and backfilled, the pipeline will be internally cleaned and
hydrostatically tested per D.O.T. requirements to check for any defects. Due to the
lasglfninaus terrain, crews may test the pipeline in segments. Water for the test will come
from local sources. Although the location, or locations, of discharge are presently unknown,
all discharges will occur under the National Pollutant Discharge Elimination System
(NPDES) discharge permit.
Reclamation/Revegetation Plan
Upon completion of baclditling activities, cleanup of the right-of-way will begin. The
intent will be to restore the natural ground contour, reseed plant gfowth, and allow natural
surface drainage.
Reclamation will consist of recontouring of the disturbed areas back to their original
contour. This will be accomplished after the preliminary clean up efforts have been
completed.
All construction debris will be removed from the right-of-way and properly disposed
of. Severely rutted areas, or areas which have been densely packed due to construction
activities, will be graded to leave it in the proper condition for revegetation. The disturbed
areas will be re-contoured to the satisfaction of the affected landowner andlor governing
agency.
Reseeding is required for all disturbed portions of the right-of-way including all
bladed, recontoured, and compacted areas. Disturbed portions are expected to include the
entire 5Gfoot width of the right-of-way. These practices do not apply to croplands,
residential, or landscaped areas where landowner agreements will determine how the land
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is to be reclaimed. Pasture lands will require application of a seed mixture specified by the
Iandowner.
PSCo and RMNGC will ulilize various techniques to control erosion to ensure a
successful revegetation effort. Erosion control wi[ be utilized where necessary. Upon
successful completion of reclamation activities, erosion control should be limited to steep
slopes and sensitive areas. Waterbars will be installed on steep slopes and maintained as
a part of normal maintenance activities. Waterbars prevent soil erosion which will in turn
impact revegetation efforts. This is normally accomplished by diverting drainage away from
the disturbed area so it can begin and end in established vegetation or rock.
Waterbars are typically constructed of mounded earth and rock. On long slopes, a
series of waterbars are used. The distance between waterbars depends on the soil erosion
potential, predicted runoff, and slope.
Silt screens and hay bales will only be used where necessary to control erosiorl and
will be maintained as required until vegetative ground cover has been established. The hay
can be scattered and used as mulching material once they are ready to be removed. Silt
screens can also be used on a semi-pennanent basis in areas where prolonged erosion is
anticipated. They are made of synthetic material designed to retain sediment while allowing
water to pass through. See Appendix - Erosion Corurol Procedwes and the Revegetation Plan
for Phase II of the Nfle to Avon Natural Gas Pipelinc hoject.
Section 5.03.07 - Industrial Operations - Impact Statement
In response to Section 5.03.07 of the Garfield County 7-ontng Code, the following
addresses possible impacts of the project upon County resources.
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1(A) The construction, operatioq and maintenance of the gas pipeline will not have any
adverse impact upon existing lawful uses of water through either depletion or
pollution of surface runoff, stream flow, or groundwater. Water is not required to
operate the pipetine. Approximately one acre foot of water is required to
hydrostatically test the pipeline for any defects. All discharges will occur under the
guidelines of the National Pollutant Discharge Elimination System (NPDES).
1(B) Impacts to adjacent land will primarily occur during pipeline construction and will
be short term in duration (approximately four months). There will be no long term
impacts on adjacent land from the generation of vapor, dust, smoke, noise, glare, or
vibration. Resource protection meutsures have been identified to minimize any
impacts to adjacent properly. See Environnental Assessment ' Appendix A for fiirther
detail Detailed specifications for construction, restoration, and reclamation will be
developed for the pipeline construction and included in the Plan of Corstruction.
1(C) Impacts on wildlife and domestic animals will primarily occur during construction and
will be short term in duration. Constructionwill incorporate the seasonal constraints
outlined in the Environmental Assessment by avoiding construction during months
identified for elk production and fish spawning.
1(D) The pipeline construction will cause some short term traffic impacts. Minor delays
will occur on roads crossed by the pipeline. All traffic will be controlled in a safe
and efEcient manner, according to Colorado Department of flansportation and the
Manual of Uniform Traffic Control Devices. Permits will be obtained for County
and State road crossings. Traffic Control ptans will be developed to control traffic
19
I during construction. PSCo and RMNGC will be responsible for repairing any road
I damage that may occur as a result of the pipeline construction.
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1(E) Impacts to abutting properties will be minimal and will primarily occur during
pipeline construction. These impacts will be short term in nature.
I 1G) Please see Appendix A of the Environmental Assessment entitled "Resource
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Production Measures" which outlines the measures that will be taken to minimize
environmental impact during construction of the pipetine.
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TABLES
I irom: Jamcr L. xrohc To: Annc mrR* O P.qe 7 ot 7
T
Ote: 213il95 Tinc: 10:19:30
T,\BLE L
PEA.SE II, SEGMENT I - RIFLE/AVO}I
Garfie-ci C,;untr'
OWNEP.S ','ROSS' D .a.D.ror)taFS
l. 2395-722-00-0al 2395-a24-05-(li9
James i.ose Westbank I'iesa LEc. Partners;rip
0408 Ccunty Road 139 3235 Oak Lane
P.O. Bcx 1240 Glenwocd *qprings, CO 81501
Glenwooc Springs, CO 816C2
303-945-3364
2395-Cl3-00-003
Robert T. Trout
880 Nile SL.
F.urora, CO 30010-1166
?. 2395-014-00-106
Cheryl Lynn Tassos
0183 161 Road
Glenwooc Sprj.ngs, CO 816C1
303-928-0445
3. 2395-014-00-052
Charres G. & Patrlcia S. WarCen
Ol25 761 Road
Glenwooc Springs, CO 81601
303-945-9375
4. 2395-014-00-053 & 122 2395-014-00-051
Roy R. & Martha A. Rakich Bruce Nichclas e Eonnie
53ll 154 Road Terliamis
P. O. tscx .l .11 25'7 1.61 Roac
Glenwooi Springs, CO 81602 Glenwood Springs, CO 81601
303-945-6120
5. 2395-014-00-121 2395-014-00-058
George F., Marjorie Maelene, Arrie Mae Shaw
.James M. & Jacqueline Fields 555 Coryell Rldge Rd.
645 Buckboard Court Glenwood Springs, CO 81601
CarbonCale, CO 81623
303- 963- I 525
6. 2395-014-08-0C3 2395-014-00-112 & l:3
Wayne G. & Susan J. Rudd Delores A. Stowe
132 Park Ave. P.O. Box 1581
Basa.l-t, CO Bl62L Glenwood Spgs., CO 81602
303-921-9119
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I FEB lG 'es t.ts?ROtl Dept. - RHNG PAGE,AAZ
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Ftom: Jamca L. Krohc To: Annc t*R.. O PaEc 3 of 7
2395-014-,JC-t]93
Nlobi-e icme !lanagenent
925 ChatiieLl R,l.
Aspen, CO 81511
Attn: "i,ln Davic Sei,,-ie
( 303 ) 925-b933
2395-014-(lC-0:3
Steve L. ani Carol
6811 Highway 32
Gl-enwooc Sprlrgs,
(303) 945-1E42
l.( .
0t.: 2y13/85 Tirc: '10:2O:18
Schrei ne r
816C1
2395-014-00-139
ValIey fnvestment
Prcperties Partnershrp
201 N. MiI-, Su:-te ::,)2
Aspen, lO 8161i
(303)
10. 2395-014-00-138
Gould Constructi-on, Inc.
687 4 Highway 32
Glenwooi Springs, CO 81601
Attn: !lark GcuId
303-94 5-1 297
2393-063-00-001
Mark C. Gould
687 4 Highrvay 82
Glenwooci Springs, CO 81501
303-94 5-1 297
2393-052-00-0C7
2393-051-r)O-0CB
Lcs Amj-gcs P.anch
Attn: Greq Boeker
2929 County Road 114
Glenwooci Springs, CO 81601
303-94 5-2838
2395-C,14-00-li0
Delores A. Stowe
P.O. 3cx 1531
Glenwocd Sorings, CO 81502
2393-:r4-03-001
Pat E. & Pats.7 .-t. Dowdy
P. O. 3c:< 7253
Glenwocd Springs, CO 81602
, a O?-4, -,1 -n?-nn?
Howarc & Daniell-e Yonet
Josepn & Toma Ccrda
.Iosepi Cervantes
Aitn: josepn Corca
4220 Lcng Beach 3}vd.
Long 3each, CA 90808
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FEB I3 95 lltO?ROIJ Dept. - RNNG PRGE.ABE
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From: J.rncs L. Krohc To: Annc llaRac Dtc: 213195 Ti1rc: 10:2't:03 Pagc 4 of 7
2393-.a43-04-i-t-0
2393-353-04 -t-r09
f Cmunc 3 . & 14a rt:.: A
6590:.wy. 82
:llenwocd SDrrnqs, lC
2393-053-04-001
i:ey Ccnst. , Inc.
35 Tanager l:.
Glenwocd Springs, CO
2393-053-05-006
iavan i-. AI-Zahic
P.O. 3cx 738
F.spen, CO 8L612
2-?93-a 53-05-00?
S:anIey J. EosusE.a
P.O.3cx 1958
Aspen, CO 81512
2393-053-05-008
Nancy A. Ccleman
P.O. 3ox 1117
3asalt, CO ?1627
l{riler
e1501
I r- 601
2393-053-06-001
Daniel B. & DaviC E. Bcrk
117 AAEC, Ste. 20L
Aspen, CO 81611
2393-053-06-002
Charles Patt::ck & CrrcL Jean
McCurry
L68B5 Charti-ey Ct.
Deiray Beacn, FL 33484
2393-053-06-0i1
Dennls A. Bradley
P.O. Box 2516
Aspen, CO 81612
2393-042-00-03,1
Colorado l,lounta:-n
P.O. Box i0001
GLenwood Springs,
Attn: Mi-chae1 J.
303-945-8b91
--unior CoJ.lege District
co 81601
Sawyer
FEB 13 '95 1 l:03 ROI! Dep t .RHNG PRGE. AA4
I From: Jamcs L. Krohe ro: Annc MaRac O Pagc 5 ol 7
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Ddc: 2|/13/95 Tine: 10:21:{3
ii. 1393_,.-lJ_;,i._i,:3
.ichn F. , .lohn :. , 'nd i".t:.i,:o l'1aeca : twe:3 and ''"'nn . .
3abrci::
.L.ttn: .i,:hn P. lcwers
' ( ) * 1'1
)t f '-- '^ !_a:l
303-D:5-a.1ii
i5. :393-012-0C-,,i1
Cc.l-oraCo }4cunta.n ---rn:or Ccl-l-eqe Di;--:ici
P.O. Bcx IC0CL
GLenwooc Spri:,;s, lO t15::-
Attn: !lichaei i. S:wyer
303-945-ab9i
16. :393-032-00-032
'iames P. i i:ra:cn -. l.l ies-anrr.-^^' - -.',' :.':Jo --:. - -J 'J-)t'- _
3ienr''oc,: Srr-t:.;s, -C o16-l-
303-945-42,r3
l1. :393-01J-00-0ll
^*"---: ''ver Ranc:. C,).uiy5Lia i..t
2{ l0 Anaconi5 T:wer
555 -l'":. Stree--
ff o-.ra - :a BAZA2
Attn: Adam Poe
lrtre"-'ern I-anC Croup, inc.
7212 Vierr GuIch
Evergreen, C3 80439
303-52 6-2324
I g . :1 37 __a54 _()0_(,): L
_ I --:- I t -- - : '- . e e !.1 :' .: I-l ,l i.
8240 C::nLrr i:.oad i15
P.O. Ecx i]23
Glenwooc Sprinqs, :O B16aL
At tn : Ba rbara Ilurwi.- z
303-945-B9?3
1 9. 21 37-363-00-052
Ba r Le z\"{ , Ltd .
A[tn: Gina GcuId llicho.]-s
l1 l7 Oa k I ey A'.re .
l'IenIo Park, :A 94025
I FEB 13 'es tt'ts'ROU Dep t. - RHNG PAGE. ABs
I From: Jamcs L. Krohe To: Annc t*R."O
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Dilc: 213/95 Tine: 10:22:25
1?A. P.cr:aid D. i Ka--hleen .r... :-lucnes
P . O. Bcx i- c12
Carbcndale, lC t-] 1a2:-.1 51:
303-963-'-D02 ?
l,l . ?L?7 -364 -{10-1 I C
Geo:ge L. 3l-ocker
9205 Ccunty Rcad 1i5
Glenvooi Spri:gs,,lC 815:l
30-?-928-a907
2L. 2187 -36t-00-003
ltriIIiam & Kathleen i^,iatl:i:s
P.O. Box 28673
E1 Jebel, CO El628
303-94 5-a58i
22 . 2187 -36 1 -00-0: I
W. ?age Spra::.er
34l- Homest-ead RoaC
P.O. Box 7904
Aspen, CO 87612
303-945-4074
23 . 21 3 9-31 2-c)0-029
RusseLL Scott, Jr.Scott Capital Corp.
Attn: ll . P.ex. Martir., VP Finance
1700 Lincoin St., Suite 3950
Denver, CO 80203
24 . 2189-312-00-02 9
2181 -252 -00-1 3t
A} an J. Young
1383 Wes.more Trail
Winnetka, :L b0093
25. 21,89-304-00-951
Bureau of Land Management
Bob Elde rk:-n
P.O. Box 1009
Glenwooci Springs,,lO 81602
303- 94 5-2341,
Page 6 o{ 7
I FEB ls'es rr:e5 ROl! Dept. - RNNG PRGE.ABE
From: Jamcs L. Krohr fo: Annc I.l*^.. OI
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Ote: Zl3195 Tine: 10:23:05
.6. :139-321-',r0-(r3?
CcuLter C:eex ',rall=,, P.rnci, -'-C.
Attn: .,rrr.es D. Feterson
105 tI. leari l:.
P.O. P:x irl-..l
r cr,6h -^ i 16::/rJgerr,
303-945-r.i55 (h)
303-925-t'796 (,-rj
21 . 2189-281-;_)0-026
D-:',- . ,lJrOI.,,n i.-erDirLCer,.u.Y r !
"l 921 C:-n:v F.:aC 1-l
P.O. Bcx:8990
EI Jebel , aC aL62B
-3. :139-:31-)0-0:5
Rona-ii =cque, -:cot: -:cqrt= i i-.irk tscgue
P n arv ;'e
D-^- I -nDd5l^-, -u ilI:-1-
963-::C2
Pegc 7 of 7
R0tl Dep tFEB 13 '95 I t:45 - RI,lNG PAGE. SB7
APPENDIX
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K N ENERGY, INC.
EROSION CONTROL PROCEDURES
1 GEI\TERAL
1'l These specifications are to be used on conjunction with companys standardconstruction specifications, Exhibit c, on projeca ideatified by company. The company wi1supply a construction lvlanager (cM) who wiil u" r".po*ible for or"rr""iog the constructionwork and ensuring that all applicable regulatory requirlments are pcrformed correctly.
l'2 The Euvironmgatal Inspector (EI) wilt ensure compliance with all environmentalspecifications and will report to the cM on a daily basis.'
t'3 The EI will monitor and/or supervise and have direct responsibilitv to oversee thefollowing activities:
1.3.1 Right-of-way preparation
1.3-2 Temporary and permanent erosion control
1.3.3 Cultural resource compliance
1.3.4 Stream and river crossings
1.3.5 Wetland construction
I.3.6 Right-of-way restoration
1.3.7 Compliance with all environmental conditions of permits
2 EROSION CONTROL PROCEDURGS
2.1 ROW ACCESS, PREPARATION AND USAGE
2.1.1 AII work and equipment operation will take place only within the Company spccifiedright-of-way limits. Any rerouting of the pipeline.fi.u; approved by constructionManager.
2'l'2 only existing tgu& and private access roads specifically authorized by constructionldanager will be used for access.
2'1'3 storage of pipe, materiars and equipmeot is allowed only within the right-of-way or acompany approved storage area during the constnrction period.
2'l'4 Topsoil segregation will generally be required only on pipelines grcater than 12 inchesin diamercr in l) annually cultivited or rotated agricultural land; 2) residential a.reas; or 3)other areas at the landowners request. tn an areai"qiriog topsoil segregatiorl contractor
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the edge of the right-of-way to prevent siltation of wetlands, ponds streams, etc. within thefollowing distances from the feature:
Slooe (%)
J- /
8- 15
16-30
>30
Min Undisturbed Ground Cover (ft.)
25
50
75
100
Figures 3 and 4 show atypical design for temporary sediment barriers. The base of the barrierwill be imbedded into the ground to prevent any erosion under the barrier. contractor willinspcct and repair any deficient sediment barriers on a daily basis.
2'l'9. In steeP areas, contractor will install trench breakers to prcvent storm water fromrunning in the baclJilled trench. Trench breakers will be installed on slopes adjaccnt towaterbodies and wetland areas. The bottom of one breaker is to be at the same elevation asthe top of the next breaker down slope. sand or clay filled bags are normally used for thispurpose' If the sinration requires a breaker spacing of less tn- so feet apajalong the trench-The tse of topsoil in trench breakers is prohi-bitea." figue 5 shows a typical design for trenchbreakers.
2,2 ROW CLEANUP
2'2'l Final s[earup (including final graaing) and permanent erosion control measues willbe completed within l0 days after the trench is Uackfilled, weather and soil conditionspermitting. A travel lane may be left open to allow for access by construction traffrc. Thistravel lane will bc restored in accordarce with these specifications when access forconstruction or revegetation of the constnrction right-of-way is no longer required. If frnalcleanup carulot be completed within i0 days, all rlquired temporary erosion control strucruresshall be instalted and maintained as provided in the procedure.
2'2'2 Contractor will remove construction debris from the right-of-way and grade theright-of-way to restore the natural contours and drainages. [n cultivatedfields, the soil will bereturned to the proper condition for planting
2'2'3 contractor will constnrct permanent slope breakers in all areas, except cultivatcdareas and lawns, using the recommendations obtained from the local soil conservationauthority and the EI. Concentrations of surface flows will be diverted to stabilized outlettsing slope breakers with an outslope as detailed in Section 2.1. Figure 6 shows a design forpermanent slope breakers.
2'2'4 The contractor shall repair or replace all distubed lawns, turf, ornamental shnrbs, andother landscaping disttubed by this project as required by thc landowner and companyrepresentative.
oo
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figruro 1 - TYPrcAr. DEsrcN oF Tttr{poRARy sl.opE BRE"MERS
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nl all
flgU=E 3 . TYPICAI DESTGN OE TEMPORARY SEDIUEMT BARRIERS
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ar.Dlxclt sr{out-D 8EHc,ltzorfill.
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TOCETHET
STRAI
SfrxED
IECOxg tlooE{ sr xE s{(ruLD8E lxctED To Ptfltot:tlYuro lAlI
TEMPORARY SEDIMENT BARRIERS AT ROADS
Source: Teunessee d p,p.lt"" Cr.p.";
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IRON PIN,3'X3t8.doR
2'X2- X3,
WOOCEN STAKES
2 OR MORE STAKES REO'D
FOR EACH EALE
DOUBLED-STAKED STRAW BALES
Source: Grcat I-alies Transmissiou Company
TEMPORARY DIVERSTON BERM AND
EROSION CONTROL BERM DETAILS
', G----_-113-<..E4ff;J.*r:=
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'4 REBaR oR wooo sraKES z.,x 2.,x 5,
'u.t,yr,,li're+.r,$r!tr_ri*:_,f -i,
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uNorsrunBED suRFAce--,.IMEEO BALES IN
EAFTH APPROX. 4"
ORATN
l1
OESIGN TO SUIT FIELo APPLtcarloN
.tu'l orl lll , c t:oi;I 'lrl -l-" I
Source: CNG Tra[snissiou Corporation
INSTALLATION OF HAY BALES
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. NEED DETERMINED ON A PROJECT.SPECIFICBASIS BY A OUALIFIED PROFESSIONAL
OR
O MUST BE INSTALLED AT THE SAME SPACINGAS PERMANENT SLOPE BREAKERS
I ' $X?l-85#3'th,T'*ET*'*T5=' ADJAGENT ro
TRENCH BREAKERS
O USE OF TOPSOIL FOR TRENCH BREAKER ISPROHIBITED
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Revegetation PIan
Rifle to Avon Pipeline Project - phase 2
I pinat Reclamation
The reclamation practices ouUined ln this section will apply to allareas to be reseeded.Reseeding is required for alldlsturlred portions of the right-of-wai tnoWt lnduding all bladed,recontoured and compacted areas. Disturbed portions are expected to inaude the entire S0foot width of the R9W, These pr:actices do noi apply to croplands, residentiat, tandscaped orother areas where landowner agreements will determine how the land is to be reclaimed.Pasture lands wlll require application of a seed mix specified by the landowner.
1.1 Seedbed preparation
The ground will be prepared for seeding immediately prior to seeding to provide forproper seed placement and moisture retention. Seedbed preparation requiiements wifl varydepending on the condition of the ground.
- Fresh soil (immediately after recoutouring) requires no further preparation.
-. Crusted or mildly compacted soil must Oe scariReO if seed is to be broadcast. Thls can bedone using, for example, a 4WD Aw with an English harrow, peg side down. lf seed will bedtiFd, no further preparation is necessary.- Compacted soilshould be ripped t2 to iS lnches deep with ripperteeth set +/- 1g lnchesapart followed by scarification, if necessary to produce an even surface.
1.2 Seeding Timing
. Seeding willfollow recontouring as dosely as possible. The acceptable periods forplanting are from spring through septLmber 1 and after october 15.
1.3 Seeding Methods
All areas are expected to be seeded by broadcasting and/or drilllng, although helicopterseeding willalso be evaluated. Any of these methods require that care be taken to insure thatseed does not segregate during the seeding process due to differences in slze or denslty ofthe seeds withln the.mix being applied. This may require use of equipment with mutflplsblnsand/or bin agitato(s) and/or multlple passes. The required cover depn for all seed ls 1l4lono more than l12lnch- Seeding wilt not be done when, in the opinion of the Company, windspeed or generalweather conditions will cause seedlng to be ineffective.
Areas that are broadcast seeded will be covered lighUy by hand raklng or dragging achgin or float, as appropriate. The seed application rate iirr u. as re@mmended for the mlxbeing used; do not double the rate for broadcasting. Generally, broadcasting wilt not beallowed when the wind speed exceeds 10 mph.
Areas that are drilled with seed mix numbers 3 and 4 require that a special procedure
be used since those mixes contaln sagebrush seed which ls very small ln size. These mixesl' '
I
Prostrate summer cJT,ress
Big sagebrush
Total
Kochia prostrata
Arlemesta tridentata Hobblecreek
I
l/3
8 l/3
SEED Mlx 4 - To be used on all other areas except US Forest service lands.
t
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T
T
I
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I
I
I
t
T
I
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I
T
I
CommonName
Western urheatgrass
Slender wheat
Indian ricegrass
Bluebunch wheatgrass
Smail burnet
Prostrate su[lmer cJryress
Founring saltbush
Big sagebrush
Totai
Scientific Name
Agropyrm srrulki
Agrcpyron trachyaulum
Oryzopsis lrynenoidzs
Agroprrron spicatum
Sangur.sorba minor
Kqhia prastrata
Atiplex canescerTs
Artemesia tidentata
V
Aniba
San Luis
Nezpar
Secar
Delar
Rincon
Hobblecreek
Anount
(lbs/Ac)
I
I
I
2
1
I
2
V3
9v3
SEED MIX 5 - To be used on all US Forest Service lands.
Amount
Common Name Scientific Name Variety QbVAc)
we$ern wneatgrass Agropyron snithii Arriba I
Slender wheat
Indian ricegrass
Agropyron trachycaulum San Luis
Oryzopns lrqenoidzs Nezpar
Secar
Delar
Arlemesia tridcntata
I
I
2
I
Bluebunch wheatgrass Agroyyron spicatum
Small burnet
Founring saltbush
Big sagebn-rsh
Total
Sanguisorba minor
Atiplex canescens Rincon
Hobblecreek
2
v3
8 l/3
Rcviscd Z3l95
PTG
APPENDIX
K N ENERGY, INC.
EROSION CONTROL PROCBDURES
1 GENERAL
l'l These specifications af,e to be used on conjunction with Companys StandardConstruction specifications, Exhibit c, on projects identified by company. The company willsupply a construction Manager (cM) who wiil be responsible ior or"rr""iog the constructionwork and ensuring that all applicable regulatory requirements are performed correctly.
l'2 The Enviroo-:9tul Inspector (ED will ensure compliance with all environmentalspecifications and wilr report to the cM on a daily basis.'
1'3 The EI will monitor and/or supervise and have direct responsibility to oversee thefollowing activities:
1.3.1 Right-of-way preparation
L.3.2 Temporary and pemranent erosion control
1.3.3 Cultural resoruce compliance
1.3.4 Stream and river crossings
1.3.5 Wetland construction
1.3.6 Right-of-way restoration
1.3.7 compliance with all environmental conditions of permits
2 EROSION CONTROL PROCEDURJS
2,1 ROW ACCESS, PREPARATION AND USAGE
2'l'l AII work and equipment operation will take place only within the company specifiedright-of-way timits. Any rerouting of the prpeline shall be approved by constructionManager.
2'l'2 only existing tgu& and private :rccess roads specifically authorized by constructiooIvlanager will be used for access.
2'l'3 storage of pipe, materials and equipment is anowed only within the right-of-way or acompany approved storage area dt*ing the construction period.
2'l'4 Topsoil segregation will generally be required only on pipelines greater than l1inchesin diameter in l) annrrally cultivated or rotated agricultural land; 2) residential areas; or 3)other areas at the landowners request. In an areaiequiring topsoil segregatioq contractor
shall remove the topsoil layer along the ditch line and subsoil storage area. The contractorshall observe the following requirements:
o Stockpile the dirt inside the limirs of the right-of_way.o only the first 12" ofropsoil or less (determined by Er) must be segregated.o The topsoil segregation mtst be completed befori any land grading or contouring isstartedr Top soil shall not be used for ditch padding.
' Ary existing crops or stubble must be snreaaea prior to the start of topsoil segregation.r Segregate additional topsoil in areas of sideben&, tie-ins, bore pits, hoe areas, etc. whichwill requfue additional ground excavalion room.o lrave gaps in th! dirt stockpile to provide access across the ditch line during construction.o During wet weather, contractor shall only work in subsoil areas unless the equipment orvehicles cause -Ihg 4" or deeper or the EI judges the ground conditions unsatisfactory.o Return trench spoil to trench and compact then rlturn topsoil evenly over the stripped area.
?'l'5 company will contact landowners and local soil conservation authorities to determinefuture drain tile locations. Contractor will alter the depth of cover over the pipetine asrequired so as not to interfere with funue drain tile installations
2'l'6 Contractor will probe all drainage systems with a sewer rod or pipe suake todetermine if damage has occurred. Alliil; da-aged during construction will be flagged bythe EI and the contractor will repair the system to it's original or better condition.Filter-covered drain tiles will only be used after Compan]'s consultation with the local soilconservation authorities. Contractor shall we only qratiiea specialists to repair, probe andtest the repaired drainage systems.
2'l'7 Contractor shall construct temporary slope breakers (Figure l) in steep areas toremove or slow down water on the right-of-way Jt the following spacing;
Slope (%)
3-7
8- 15
16-30
3l -40
>40
Spacing (ft.)
150
100
75
50
35
_/
The outfall of all temporary slope breakers will be directed toward appropriate erergydissipating devices (grassy area, hay bales, etc.) and offthe construction right-of-way, ifpossible' The berm will be installe.d perpendicular to and totally across the right-of-rn ay, slighflysloped doumhill (2-r) and approximately 18'' high. The berm may be made from topsoil not*"1ftom the segregation pile. Temporary slof breakers wifl be inspected by the EI andrepaired by Contractor at the end of each working day duing .oortn "iion. A typicat design foran energy dissipation device is shown inFigrre 2.
2'l'8 Contractor will use temporary sediment barrierg such as silt fences and/or staked
bales, at the base of slopes adjacent to road crossings, at waterbody crossings and at ["
the edge of the rigbt-of-way to prevent siltation of wetlands, ponds streams, etc. rvithin thefollowing distances from the feature:
Slope (%)
3-7
8- 15
16-30
>30
Mir- Undisturbed Ground Cover (ft.)
25
50
75
100
Figures 3 and 4 show a typical design for temporary sediment barriers. The base of the barrierwill be imbedded into the ground to prevent any erosion under the barrier. Contractor willinspect and repair any deficient sediment barriers on a daily basis.
2'l'9 In steep af,eas, contractor will install trench breakers to prevent storm water fromrunning in the baclfilted trench. Trench breakers will be installed on slopes adjacent towaterbodies and wetland areas. The bottom of one breaker is to be at the same elevation asthe top of the next breaker down slope. sand or clay filled bags are normally used for thispurpose' If the situation requires a breaker spacing of less tnan so feet apaialong the trench-
]he 5e of topsoil in trench breakers is prohibitea.- rlgure 5 shows a rypical design for trenchbreakers.
2.2 ROW CIEANIJP
2'2'l Final sleaflrt (including final grading) and permanent erosion control measures willbe completed within 10 days after the trench-is baclfiUed, weather and soil conditionspermitting. A travel laue may be left oper to allow for access by construction traffrc. Thistravel lane will be restorcd in accordance with these specifications when access forconstruction or revegetation ofthe construction right-of-way is no longer required. If finalcleanup cannot be completed within l0 days, a[ rJquired temporary erosion control strucruresshall be instaued and maintained as provided in the procedure.
2'2'2 Contractor will remove construction debris from the right-of-way and grade theright-of-way to restore the natural contours and drainages. In cultivatedfields, the soil will bereturned to the proper condition for planting
2'2'3 contractor will constnrct permanent slope breakers in all areas, except cultivatedareas and lawns, using the recommeudations oUtainea from the local soil consenrationauthority and the EI. Concentrations of surface flows will be diverted to stabilized outletusing slope breakers with an outslope as detailed in Section 2.1. Figure 6 shows a design forpermanent slope breakers.
2'2'4 The contractor shall repair or replace alt disnubed lawns, hnf, ornamental shnrbs, andother landscaping disttrbed by this project as required by the landowner and companyrepresentative.
o
2,3 TEMPORARY EROSION CONTROL AND MTILCHING
2'3'1 In the event that.final cleanup is deferred more than l0 days after the trench isbaclfilled, all slopes adjacent to wetlands and waterbodies shall be mulched with 3 tons peracre of hay or straw for a minimum of 100 fe€t on each side of the wetland or waterbody.The mulch shall be anchored with a mulch ancnoriog tool.
2'3'2 Atl dry sandy sites and all slopes greater than eight percent (g%) will be mulched withtwo (2) tonVacre of straw or hay or its equivalent.
2'3'3 Mulch will be uniformly spread over the area so that 7s percent of the ground surfaceis covered' If a mulch blower is used the straods will not be shredde.d less than eight (g)inches in length to allow anchoring.
2.3.4 Mulch will be anchored immediately after placing if nee.ded to minimize loss by windand water' A mulch anchoring tool, which i. " ,"ri". oriraight notched disks specificallydesigned for the purpose' will by used to crimp the mulch to a depth of turo to three (2-3)inches. A regular farm disc shail not be used.
2'3'1 Mulch a,uv F anchgred using a liquid mulch binder, except within 100 feet of awetland or waterbody. Cutback asphalt (rapid or medium curing), or emulsified asphaltapplied at200 gallonVacre may be used. Syathetic binde;, irueo, will be used at ratesrecommended by the manufacturer. Any asphaltic or synthetic binders will be used withcaution to minipi2ed damage to shoes, .totniog, ana automobile paint.
2'3'6 Jute thatching or bonded fiber blankets (instead of straw or hay) may be used onwaterbody baoks to stabilize seeded axeas. The tbatching will be anchoied with pegs orstaples.
2'3'7 Up to I tonlaqe of wood chips may be added as mulch. If so, such areas will betopdressed with 11 lbs./acre available nitrogen or a similar quantity of 50 percentslow-release fertilizer.
2'3'8 When contractor fertilizes permanent grass and/or legume plantings, he will uerecommendations obtained from the local soilconservation iuthority. If ianue is applied,the addition of nitrogen will be reduced by half for each l0 tons of manure applied. wherepossible, lime and fertilizer will be incorporated into the top two inches of soil.
, .;.
rrolD urtDqt ull?
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ut qrflfi
Dl$rrc 1 - TYPrcAr. DEsrcN oF TB.tpoRARy sl.opE BREAKERS
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Source: Iroguois Gas Transmission System, l99O
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FENCE FA{CE EltEEDrEilT I
RONT VIEW
TYPICAI DESIOI OE ENERGY DISSIPATION DEVICE
tg' t{rx. posr EHEEDMET{T
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DI. TUTC 3 ,- TYPICAI DESIG}I OF TE{PORARY SEDIUENT BR,RRIERS
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Figrure I IYPICAI DESIGII OE TEUPORARY SEDIMENT BARRIERS
S ia ked :.:a in:::ncnec
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TO PTEIIOI.I:ILY
LUO S IJ
TEMPORARY SEDTMENT BARRTERS AT ROADS
Source: Tennessee G* ptp"t-" C.6
IUTED
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ttr ytx. rD{c€ PosTs. DRmXutx. ttr txTo cRouxo.T
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Source: Tennessee Gas pipeline Company, 1990
CONSTRUCTION OF A FTLTER FENCE
!,
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IBON PtNs'x 3/8' d oa
2' X 2' X3,
WOOEN STAXES
2 OA MORE STAKES REO'D
FOR EACH BALE
DOUBLED-STAKED STRAW BALES
Source: Great I-akes Transmissiou Company
TEMPORARY DIVERSION BERM AND
EROSION CONTROL BERM DETAILS
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-..ts
UNDISTUREED SURFACE
Source: Columbia Gas Transmission Corporatiou
n- --'
HAY OR STRAW BALES?'x 2'x 4'
IXBED BALES IN EARTH
APPROX 4.
ToP__V!ry
DETERMINED FI FIELD
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INSTALLATION OF HAY BALES
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Source: CNG Transmissioo Corporation
UNOISTUREED SUFFACE.
OESIGN TO SUIr FIELO APPLICATION
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IMEED BALSS IN
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ORAI
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Et gun 5 TYPICAI DESIGN OF TRENCH BREMERS
ro
/---.l ar.'.
TRENCH BREAKERS
NEED DETERMINED ON A PROJECT.SPECIFICBASIS BY A OUALIFIED PROFESSIONAL
OR
MUST BE INSTALLED AT THE SAME SPACINGAS PERMANENT SLOPE BREAKERS
MUST BE INSTALLED ON SLOPES ADJACENT TOWATERBODIES AND WETI.ANDS
USE OF TOPSOIL FOR TRENCH BREAKER ISPROHIBITED
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Revegetation Plan
Rifle to Avon Pipeline Project - Phase 2
1 Pinal Rectamation
The reclamation pr:actices outlined ln this section willapply to allareas to be reseeded.
Reseeding is required for alt disturbed portions of the right-of-wai tnOWt induding alt btaded,
recontoured and compacted areas. Disturbed portions are expected to indude the entire 50
foot width of the ROW: These practices do noi apply to croplands, residential, landscaped or
other areas where landowner agreements will determine how the land is to be reclaimed.
Pasture lands wlll require application of a seed mix specified by the landowner.
1.1 Seedbed preparation
The ground will be prepared for seeding immediately prior to seeding to provide forproper seed placement and moisture retention. Seedbed preparation requiiements wiltvary
depending on the condition of the ground.
- Fresh soil (immediately after recoutouring) requires no further preparation.- Crusted or mildly compacted soil must be scarified if seed is to be broadcast. This can be
done using, for example, a 4WD ATV with an English harrow, peg side down. lf seed will be
drilled, no further preparation is necessary.- Compacted soil should be ripped 12 to 18 inches deep with ripper teeth set +t- lB lnches
apart followed by scarification, if necessary to produce an even surface.
1.2 Seeding Timing
Seeding willfollow recontouring as dosely as possible. The acceptable periods for
planting are from spring through september 1 and after october 1s.
1.3 Seeding Methods
All areas are expected to be seeded by broadcasting and/or drilling, although helicopter
seeding willalso be evaluated. Any of these methods require that care be taken to insure that
seed does not segregate during the seeding process dueto differences in slze or density of
the seeds withln the mix being applied. This may require use of equipment with mutflptsbins
and/or bin agitator(s) and/or multiple passes. The required cover depth for a[ seed ls 114 to
no more than 112 inch. Seeding will not be done when, in the opinion of the Company, wind
speed or generalweather conditions willcause seedlng to be ineffective.
Areas that are broadcast seeded witl be covered lighUy by hand raking or dragging a
chain or float, as appropriate. The seed application rate *itt 6e is recommenoeo for the mix
being used; do not double the rate for broadcasting. Generally, broadcasting wilt not be
allowed when the wind speed exceeds 10 mph.
Areas that are drilled with seed mix numberc 3 and 4 require that a speciat procedure
be used since those mixes contain sagebrush seed which is very smafl ln size. These mixes
,.,. .l' 'j
without the sagebrush seed would be drilled and immediately followed by broadcasting thesagebrush seed. lf this method is used, no further raking is required.
Stockpiled cut vegetation (slash) will be redistributed evenly across the ROW afterseeding to provide @ver for emerging plants.
1.4 Fertitizing
There are no fertilizing requirements for this project.
1.5 Mutching
There are no.speffic mulching requirements for this project. Some small areas maypresent special problems which are most efficiently solved Oy mufning. These indude steepslopes greater than 2:1and other areas where eroiion cannot be othenrvise controlted asdetermined by the company. ln these areas the seeded ground will be stabilized with jute
thatching or bonded fiber blankets or mats anchored in ptice with staples or pegs.
- Trees, logs and other slash cleared from the RoW at stream crossings may be usedfor erosion control purposes on the ROW in areas other than welands. lt may be tnippeO orshredded and scattered across the disturbed area after seeding
1.6 Seed Mixtures
SEED MIX 1 - To be used north of the Colorado River
CommonName
Western wheatgrass
lndian ricegrass
Utah Sweetvetch
Winterfat
Fourwing saltbush
Total
Creeping Foxtail
Meadowbrome
Basin wildrye
Scientific Name
Agropyron smithii
Oryzapns lrymenoidzs
Hdysarum vorele
Ceratoidzs lanata
Atripler ccntescens
Ariba
Nezpar
Rincon
Amount
bs/Acre)
3
2
2
2
2
u
SEED Mlx 2 - To be used near crossings of streams and weflands
Amount
9ommon Name sclenhfic Nam, variety 0bvAcre)
Western wheatgrass a 2
Alop*urus arundinaeus Ganison
Brcmus biebersteinii Regar
2
J
3
4
Elymus cinerius Volga
Sainfoin with innoculate Onobrychis viiaefolia Eski
Total
SEED MIX 3 - To be used on all sagebrush areas
l4
Amount
CommonNarne
Western wheatgrass
Thickspike wheatgrass
Indian ricegrass
Small burnet
ScientificName
Agrogyron snithii
Hymus lanwlatus
Oryzopsts lrytenoidzs
SanguLsorba minor
Vr
Aniba
Critana
Nezpar
Delar
2
1
2
2
{ '. : )
Prostrate summer c)?ress
Big sagebrush
Total
Slender wheat
Indian ricegrass
Founving saltbush
Big sagebrush
Total
Small burnet
Founring saltbush
Big sagebnxh
Total
Kochia prostrata
Artemeia trifunlata Hobblecreek
Agropyron trachyaulum San Luis
Oryopsis hymenoides Nezpar
1
113
SEED Mlx 4 - To be used on all other areas except US Forest Service lands.
Amount
9lmmon Name Scientific Name Varietv 0byAc)
Western wheatgrass Agropyron srnithii eniua- I
8 l/3
I
I
2
I
I
2
IR
Bluebunch wheatgrass Agropyron spicatum Secar
Small burnet Sangur'sorba minor Delar
Prostrate flrnmer cypress K*hia prostrata
SEED MlX 5 - To be used on all US Forest Service lands.
Amount
Common Name ScientificName Variety (lbVAc)
western wheatgrass Agropyron $nithii Aniba I
Atiplex c€nescens
Artemesia tidentata
Sanguisorba minor
Atiplex c€nescens
Afieme,cia tridentata
Rincon
Hobblecreek
Nezpar
Secar
Delar
Rincon
Hobblecreek
9 t/3
I
I
2
I
2
1t3
Slender wheat
Indian ricegrass
Agropyron trachycaulum San Luis
Oryzopsis hymenoidzs
Bluebunch wheatgrass Agropyron spicatum
8U3
Re/is€d Z3l95
PTG