HomeMy WebLinkAbout20142165.tiff SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL
REVIEW ( USR) APPLICATION
FOR PLANNING DEPARTMENT USE DATE RECEIVED: 4/16/14
RECEIPT # /AMOUNT # 1$ 2500 CASE # ASSIGNED: USR14-0015
APPLICATION RECEIVED BY DA PLANNER ASSIGNED: Diana
Parcel Number 1 3 1 1 . 2 2 . 0 - 0 0 - 0 0 7
(12 digit number - found on Tax I.D. information, obtainable at the Weld County Assessor's Office, or www.co.weld.co.us)
Legal Description 22-T2N-R67W: SE4 , Section 22 , Township 2 North, Range 67 West
Zone District: AG , Total Acreage: 160 , Flood Plain: No , Geological Hazard: No
Airport Overlay District:
FEE OWNER(S) OF THE PROPERTY:
Name: Anadarko E&P Company LP
Work Phone # 720-929-6000 Home Phone # Email nathan.keiser@anadarko.com
Address: 1099 18th St
Address: Suite ' 800
City/State/Zip Code Denver, CO 80202
Name:
Work Phone # Home Phone # Email
Address:
Address:
City/State/Zip Code
Name:
Work Phone # Home Phone # Email
Address:
Address:
City/State/Zip Code
APPLICANT OR AUTHORIZED AGENT (See Below: Authorization must accompany applications signed by Authorized Agent)
Name: Kerr-McGee Gathering, LLC - Nathan Keiser
Work Phone # 720-929-6896 Home Phone # Email natlan. keiser@anadarko.com
Address: 1099 ' 8th St
Address: Suite 1800
City/State/Zip Code Denver, CO 80202
PROPOSED USE:
Compressor Station used to help in the transport of Natural Gas to Processing Facilities.
I (We) hereby depose and state under penalties of perjury that all statements, proposals, and/or plans submitted
with or contained within the application are true and correct to the best of my (our)knowledge. Signatures of all
fee owners of property must sign this application. If an Authorized Agent signs, a letter of authorization from all
fee owners must be included with the application. If a corporation is the fee owner, notarized evidence must be
included i icating that the signatory has to legal authority to sign for the corporation.
_ 3eirk `k
Sig re: O ner o uthorized Agent Date Signature: Owner or Authorized Agent Date
ANADARKO PETROLEUM CORPORATION
CORPORATE SECRETARY'S CERTIFICATE
I, Jeffrey R. Fiske, Assistant Secretary of ANADARKO PETROLEUM
CORPORATION, a Delaware corporation (the "Company"), do hereby certify that the
following resolutions were adopted by the Board of Directors of the Company on the 17`" day of
May 2011 , as the same appear in the minute book of this Company, and that said resolutions
remain in full force and effect as of the date hereof, and have not been amended, repealed,
rescinded, revoked or changed in any way whatsoever.
POWERS OF ATTORNEY
RESOLVED that any employee of Anadarko Petroleum Corporation (the
"Company") holding the title of Land Director or Land Manager be, and each of
them hereby is, made, constituted and appointed as a true and lawful Agent and
Attorney-in-Fact for the Company and, in its name, to perform the hereinafter
specified acts within the States of the United States of America, under state or
federal jurisdiction, to-wit:
1 . ASSIGNMENTS: To execute and deliver on behalf of the Company,
as its duly authorized Agent and Attorney-in-Fact, assignments of oil
and gas leases and geothermal leases; assignments of surface easements
and rights-of-way; and assignments of surface owner agreements.
2. RELEASES AND RELINQUISHMENTS: To execute and deliver on
behalf of the Company, releases or relinquishments of easements and/or
rights-of-way; releases of surface owner agreements; releases of leases
for oil, gas, coal-bed methane, sulfur, any other mineral or steam and
any other geothermal resources; together with the authority, if
appropriate to request approval of such releases or relinquishments.
3. LEASE DOCUMENTS: To execute and deliver on behalf of the
Company, leases or partial interests therein for oil, gas, coal-bed
methane, sulfur, and any other mineral or steam and any other
geothermal resources; Federal, Indian and State leases for oil and gas,
coal-bed methane, sulfur, and any other mineral or steam and any other
geothermal resources and authority to request approval thereof; lease
bids; lease applications; lease offers; surface leases; joint bidding
agreements; bonds; leaseout agreements; stipulations or other related
documents which may be required for issuance of any lease(s) for oil
and gas, coal-bed methane, sulfur, and any other mineral or steam and
any other geothermal resources, leases of the Company minerals or
surface property.
4. GENERAL DOCUMENTS: To execute and deliver on behalf of the
Company, deeds; joint operating agreements; gas balancing agreements;
transfer orders; letters in lieu of transfer orders; division orders;
Affidavits of Production; easements, servitudes and right-of-way
agreements; pooling agreements; communitization agreements; unit
agreements; unit reformation agreements; cooperative unit agreements;
federal and/or state unit agreements; farm in agreements; farm out
agreements; seismic option agreements; seismic permits; non-drilling
agreements; acreage contribution agreements; bottom hole contribution
agreements; production handling agreements; seismic option
agreements; exploration agreements; venture agreements; pipeline
crossing agreements; well data trade agreements; communications
agreements; radio tower agreements; federal unit agreements; federal
unit operating agreements; dry hole contribution agreements;
geothermal leases; water disposal agreements; surface use agreements;
road use agreements; surface damage settlements; surface owner
agreements; subsurface easements; contracts for the purchase and sale
of surface sites for field operations; agreements relating to seismic
operations and other similar such documents.
5. FEDERAL LEASES: To execute and deliver on behalf of the
Company simultaneous oil and gas lease applications and offers; to
execute and deliver on behalf of the Company simultaneous oil and gas
lease applications and lease offers, statements of interest and holdings
and other statements required or authorized by the Federal Mineral
Leasing Act of 1920, the Mineral Leasing Act for Acquired Lands of
1947, the Geothermal Energy Act of 1980, the Indian Mineral Act of
1982, the Federal Onshore Oil and Gas Leasing Reform Act of 1987,
any statute relating to Indian tribal or allotted lands or state lands, as
amended or supplemented, the Outer Continental Shelf Lands Act and
the Outer Continental Lands Act Amendments of 1978, as amended or
supplemented, and the regulations heretofore or hereafter issued
pursuant thereto or any other law, now or hereafter enacted, or the
regulations (Code of Federal Regulations) passed pursuant thereto.
6. GENERAL POWERS: Except as noted elsewhere in this provision, to
execute and deliver such other related documents as may be required in
order to conduct the business of the Company. This Power of Attorney
shall be construed broadly as a General Power of Attorney. The
listing of specific powers is not intended to limit or restrict the general
powers granted in this Power of Attorney in any manner. The
Company hereby limits the authority of the Attorney-in-Fact named
herein, insofar as it relates to the filing of offers to lease and instruments
2
of assignment, transfer and sublease, to make such filings for the sole
and exclusive benefit of the Company and not on behalf of any other
person in whole or in part, and hereby specifically prohibits the
Attorney-in-Fact from filing offers to lease on behalf of any other
person or entity.
7. WAIVER OF DEFENSES: As to all acts taken, or acts performed
under this Power of Attorney, the Company agrees to be bound to
representations made on its behalf by the said Agent and Attorney-in-
Fact and does hereby waive any and all defenses which may be
available to it to contest, negate or disaffirm actions of said Agent and
Attorney-in-Fact.
RESOLVED that this Power of Attorney shall be effective and shall remain
in effect until rescinded by the Company; provided, however, that the authority
granted to any Land Director or Land Manager by this Power of Attorney will expire
immediately upon the termination of employment, change of title, death or disability
of such Land Director or Land Manager.
RESOLVED that any documents consistent with the authority herein granted
may be executed with the title "Land Manager", "Land Director", or "Agent and
Attorney-in-Fact."
RESOLVED that if any of the powers granted herein shall be declared
invalid, inoperative or void, such declaration shall in no way affect the validity of the
others powers granted herein.
I do hereby further certify that the following employee of Anadarko Petroleum
Corporation holds the title set opposite his name hereunder as of this date and, pursuant to the
foregoing resolutions, is duly authorized to act for and on behalf of the Company:
NAME TITLE
Matthew T. Miller Land Manager
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the seal of the
Company this 30th day of October, 2013.
•
:sc 6Leu cfak-
effrey R. Fiske
;'�° 4 = Assistant Secretary
t SEAL ° `
0 DELAWARE
/ s
`, DELAWARE / CV/
3
STATE OF COLORADO )
CITY AND )
COUNTY OF DENVER )
BEFORE ME, the undersigned Notary Public in and for the State of Colorado, on this
day personally appeared Jeffrey R. Fiske, known to me to be the person whose name is
subscribed to the foregoing instrument, and acknowledged to me that he executed the same for
the purposes and consideration therein expressed.
Given under my hand and seal of office this 30`x' day of October, 2013 .
dikAAA_ (.731: --d-Aeryfr2-e-
LORRI L. SIMPSON
NOTARY PUBLIC Notary Public in and for the
STATE OF COLORADO
NOTARY ID # 19974006744 State of Colorado
MY COMMISSION EXPIRES APRIL 27, 2017
4
Tr — l—OWbo%(‘?. %) DEPARTMENT OF PLANNING SERVICES
"lig1555 N 17th AVE
Ituc GREELEY, CO 80631
PHONE: (970) 353-6100, Ext. 3540
COLORADO FAX: (970) 304-6498
AUTHORIZATION FORM
I k\„\AA-I/w.f.\ --e;Sec represent Ce.c c - Mc(,ee CA t; 'r 1 LLC_ for the property
(Agent/Applicant) (Owner) 3
located at 0 leers eci-ior o C c 1C3 at 3 Ct
LEGAL DESCRIPTION : SEC d TWN 21J RNG ( 1 kis.) SE LI
SUBDIVISION NAME: Parcel - 1311 2-?. 0000 0-1 LOT BLK
I can be contacted at the following phone #'s: Home 12- 0 - 'AM - 6 '16
Work
Fax #
The property owner can be contacted at the following phone #'s
Home
Work 2 0 F- 9 2 `1 - 0-R1
Fax #
Correspondence mailed to (only one) : J' Agent/Applicant
Property Owner
DATE 3 - J k - 2-oty
OWNER'S SIGNATURE v �'
Page 15
SECTION 1
1. Description of Proposed Use:
This USR application is referred to as the Tri-Town Compressor Station application and is
Submitted by Kerr-McGee Gathering, LLC, a subsidiary of Anadarko Petroleum Corporation .
Anadarko and Kerr-McGee operate nearly 5,000 oil and gas wells in the Denver-Julesberg ( DJ )
Basin with the vast majority being located in Weld County, Colorado. All of these wells produce
varying amounts of natural gas that need to be routed via a system of underground pipelines
through a number of compressor stations in Weld County.
A compressor station helps the transportation process of natural gas from one location to
another. Natural gas, while being transported through a pipeline, needs to be constantly
pressurized in certain distance intervals (from 40 up to 100 miles) . The gas in the compressor
station is pressurized by special turbines, motors and engines. The proposed site is leased by
Kerr-McGee Gathering, LLC and is approximately 18.5 acres in area and is located one half mile
west of the intersection of Weld County Road 18 and Weld County Road 21 . It is currently
zoned for Agriculture and surrounded by parcels that are also zoned for Agriculture and are in
crop production with limited/extensive residential development .
The proposed installation outlined in this application, includes various compression equipment
that will be used to compress and transport natural gas. The equipment being proposed will
include compressors, vapor recovery units, separators, dehydrators, launchers, coalescers,
storage tanks and additional supporting compression equipment. There is also a
communications tower proposed, to allow the site to be operated remotely. The
communications tower will be a 70 foot tall lattice tower and powered from the Compressor
Station UPS. No backup generator will be necessary. There will be 1-2 dishes on the tower and
it will handle all communications on site, and co-location will be possible . Please see the Site
Plan in the Appendix for a more detailed layout and description of the proposed equipment and
communications tower.
The compressors on site operate 24 hours a day, 7 days a week, 365 days a year. However, the
station will automatically adjust to run only those engine-compressors needed to adequately
handle the volume of gas flowing through the pipeline .
Facility Ownership:
Tri-Town Compressor Station
Kerr-McGee Gathering, LLC
1099 18th St., Suite 1800
Denver, CO 80202
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2. Consistency with the intent of the Weld County Code, Chapter 22 of the
Comprehensive Plan
Comprehensive Plan Consistency
The Weld County Comprehensive Plan addresses goals and policies for agriculturally zoned
properties, oil and gas deposits, as well as environmental pollutants that the compressor site
may emit. Goal 6 of the Comprehensive Plan encourages the division of land in agricultural
areas to support the continuation of agricultural production . The site is currently owned by
Kerr-McGee Gathering, LLC, and used for agricultural purposes. Finally, the Comprehensive Plan
addresses the presence of oil and gas deposits in the County and encourages the extraction of
oil and gas resources that conserve the land and minimize the impact on surrounding land and
the existing surrounding land uses. The proposed addition of a Compressor Site conserves land
by eliminating the need for an additional separate compressor site elsewhere in Weld County.
The proposed use is consistent with Chapter 22 and any other applicable code provisions or
ordinance in effect. Section 22-5-100.A. (OG .Goal 1 . ) states, " Promote the reasonable and
orderly exploration and development of oil and gas mineral resources," while Section 22-5-
100. B. (OG .Goal 2. ) strives to, "Ensure that the extraction of oil and gas resources conserves
the land and minimizes the impact on surrounding land and the existing surrounding land uses ."
Section 22-5-100. B., (OG . Policy 2.9 . ) outlines the objective to, "Impose protective measures
through available state, County and federal regulations to ensure that the mineral operator
conducts operations in a manner that will minimize current and future environmental impacts."
The request for a Site Specific Development Plan and a Special Review Permit for a Mineral
Resource Development Facility, including Oil and Gas Support and Service : specific to oil and
gas processing facilities and related equipment, including, but not limited to, eight (8)
compressors associated with gas processing, being part of a new compressor, pipeline and gas
processing network necessitated by the need to move larger volumes of gas due to the recent
increases in drilling activity and projected additional production increases anticipated by
producers.
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3. Consistency with the intent of the Weld County Code, Chapter 23 (Zoning) and the
zone district in which it is located.
Oil and gas facilities are allowed as a use by right in the A (Agricultural ) Zone District.
However, oil and gas support and service operations such as a Compressor Facility require the
approval of a Use by Special Review Permit. The proposed use is consistent with the intent of
the A (Agricultural ) Zone District. Section 23-3-40.A. 2 of the Weld County Code provides for Oil
and Gas Support and Service, and Section 23-3-40. L of the Weld County Code provides for a
communications tower greater than 70 feet in height as a Use by Special Review in the A
(Agricultural ) Zone District.
4. Surrounding Uses and Compatibility with surrounding uses.
There are currently no USR permits on the proposed site. The proposed facility does not
interfere with the existing use of the area, and remains compatible with the current zoning.
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5. Details of the Site
a. Number of people who will use this site
There are no permanent employees on this site. The site is visited by a Kerr- McGee/Anadarko
employee on a daily basis. The employee is typically not on site for longer than one to
two hours at a time. Given the short amount of time an employee is on site, Anadarko
believes that a permanent water and sewer service is not necessary. The site is monitored
24 hours a day 7 days a week by the computers at the company's gas control centers in
Brighton and Denver. Bottled water and a port-a-let will be utilized by personnel visiting the
facility
b. Number of employees proposed to be employed at this site
There will be no full time employees at the Tri-Town Compressor Station . One employee may
visit the site on a daily basis.
c. Hours of operation
The compressors on site run 24 hours a day 7 days a week based on demand . On average one
employee will visit the site once each day in a pick-up truck. Trucks will generally only come to
the site during the hours of 8 am to 5 pm unless there is an emergency.
d. Type and number of structures to be built on this site
Please see the Site Plan in the Appendix for a more detailed layout of all proposed buildings and
communication tower.
e. Type and number of animals
There are no animals on site.
f. Kind of vehicles that will access this site and how often
An Anadarko/Kerr-McGee employee will visit the site once each day in a pick-up truck. Larger
vehicles with trailers may come to the site for delivery, repair, and maintenance purposes only,
on a periodic basis.
g. Fire Protection
The Fort Lupton Fire Protection District provides fire protection to this area .
A referral packet will be sent to the District by the County.
h. Water source on the property
There are no full time employees on site. A Kerr McGee employee will visit the site
on a daily basis. Due to the lack of employees permanently on site, a water
connection is not necessary. Should the status of employees on site change, water
would be requested from Central Weld County Water District or obtained from a new
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well on site as appropriate. Bottled water will be available during construction and during
operation .
i. Sewage disposal system
There is no need for a sewer disposal system . Employees will have access to use a
port-o-let at the Tri-Town Compression Station . This facility will be serviced by Waste
Management for waste removal . A small dumpster and will also be on site .
Should a water source later be required, there appears to be ample space on the lot to provide
for an ISDS for sewage disposal .
j. Storage or warehousing
There will be a small storage building on site that will house small equipment
associated with the compressors. There will also be a laydown area located within the footprint
of the facility. This area will be fenced in and contain equipment and pipe that will be used for
the other phases of compressor station construction . Kerr-McGee will consider screening the
site if requested by Weld County, however due to security reasons it is preferred to leave this
area unscreened . If this area becomes unnecessary, it will be reclaimed in accordance with the
Reclamation Procedures outlined in this application (see #7)
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6. Proposed Landscaping
It is anticipated that the facility will be enclosed with a chain link fence approximately 6-7
feet high with a 3 foot outrigger and barbed wire to prohibit vandalism and theft not only
during the construction phase but also as a security device for the life of the facility. No
additional screening or additional landscape being proposed for this application .
7. Reclamation Procedures
Upon termination of the proposed project, all equipment would be removed . The ground
would be re-graded to accommodate agricultural uses or be re-vegetated to 80% of pre-
disturbance vegetative cover in accordance with the COGCC 1000 Series Rules. The pre-
disturbance vegetation cover shall be determined by the undisturbed surrounding area . We
would also be willing to evaluate coordinating reclamation efforts with Weld County
Extension, Public Works, and the Spoil Conservation District.
8. Storm Water Drainage
A water quality feature has been added . Please refer to the drainage narrative in the
appendix of the application for additional details.
9. Construction Period
Construction of the proposed water storage facility is expected to commence shortly after
the site plan and Use by Special Review application are approved . We expect construction
to be complete by the end of 2014.
10. Waste Handling Plan
The following materials are used on site and part of normal operation .
Replacement/Recycling of materials is expected during operation :
Product Name Quantity
AEON 4000 15 gal
Ambitrol FL 50 Coolant 500 gal
Mobil Pegasus 805 500 gal
Used Oily Water / Used Oil / Used Ambitrol 200 gal
The only other source of waste on site will be from the portable sanitation unit, which will
be emptied on a weekly basis. No additional chemicals will be stored on site, nor will
vehicles be washed . In the unlikely event of a motor vehicle oil leak ( potentially during
construction ), Kerr-McGee will take appropriate measures to mitigate the effects of the
spill/release. If a spill/release meets or exceeds any regulatory reporting criteria, Kerr-
McGee will report the spill to the appropriate regulatory agency(s) . Kerr-McGee's standard
operating procedures are to excavate the impacted soils and transport them to a licensed
disposal facility. As appropriate, confirmation soil samples will be collected from the
excavation for laboratory analysis. Laboratory analytical results will be utilized to
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demonstrate effective remediation to below the appropriate regulatory standards. The
laboratory reports will be included in any written report to a regulatory agency. Following
completion of the excavating activities, the area will be backfilled and returned to its pre-
release grade. Please see Appendix for all MSDS sheets of wastes generated .
Liquid waste materials are disposed of or recycled by Mesa Oil . The municipal waste
dumpster and roll-off are managed and disposed of by Waste Management. The dumpster
is emptied either weekly or every two weeks and the roll -off is emptied on a call-out basis.
Waste Handling/Recycling Contact Information :
Mesa Oil, Waste Management
7239 Bradburn Blvd . 2400 West Union Ave
Westminster, CO 80030 Englewood, CO 80010
(303) 426-4777 (303) 482-6406
Product tanks will have steel skid mounted containment units installed . The seams will be
sealed . Each unit will be sufficient to contain 1.5 times the product tank capacity. For large
capacity condensate tanks we will utilize membrane lined basins with earthen berms or
steel firewalls. Oil and coolant are stored within the compressor units themselves and spills
are contained by the structural steel skid of the actual compressor.
All Kerr-McGee and contractor activities will be operated in a manner that prevents spills
and releases of crude oil, natural gas, produced water and other wastes to the
environment. Non-routine waste (e.g. spills or releases) will be managed in accordance
with Kerr-McGee's Emergency Response and Oil Spill Contingency Plan . Spills, as
appropriate, will be reported to the proper regulatory agency(s) . Additionally, a site-specific
Spill Prevention Control and Countermeasure (SPCC) Plan will be developed to outline
appropriate actions to be taken in the event of a spill or release. The SPCC Plan, in
conjunction with the Emergency Response/Oil Spill Contingency Plan, will ensure that all
appropriate response actions are taken and that all waste will be handled in accordance
with applicable rules and regulations. Both documents are written in accordance with
requirements set forth by the Environmental Protection Agency. A copy of this plan will be
submitted to Weld County within six months after start of operations .
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Dust Abatement Plan
During the construction phase of the project, Kerr-McGee Gathering, LLC, will use or
contract to have water trucks utilized to maintain dust suppression and fugitive particulate
emissions. Also, the storm water management plan will be followed to mitigate soil erosion
during construction . After completion of construction, the property will be stabilized using
appropriate vegetation, usually a combination of dryland/grass mixture or crop, which will
not be allowed to grow over 12" high . Additionally Kerr-McGee will gravel any access and
driving surfaces affected, with the same material in its existing condition . If necessary, Kerr-
McGee will also use or contract to control dust after construction .
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2. Operation Standards
Noise Control
The operation of the Compressor Station shall comply with the noise standards enumerated
in Section 802 of the COGCC Amended Rules 2008.
Noise is emitted from Compressor sites, however, the daily maintenance performed by sub-
contractor or Anadarko employee will be done by pick-up truck and trailer and typically
during normal business hours. The rural setting of the project location is preferred to
mitigate the effects of noise emissions on the surrounding property owners. Please see
appendix for a copy of the Noise Abatement Plan .
Air and Water Quality
All activities will be in compliance with the permit and control provisions of the Colorado Air
Quality Control Program, Title 25, Article 7, C. R.S. as applicable. No waste water will be
discharged within the site. All water and waste is carried by vehicle off the site.
Lighting
All lighting on the site will be downcast and shielded . Lighting will be provided for security,
evening maintenance, and emergency work. Any source of lighting on the site shall be
shielded so that light will not shine directly onto adjacent properties. Nor will direct or
reflected light from any source on the project site create a traffic hazard to operators of
motor vehicles on the adjacent road access.
There will be lights at the compression pipe racks and be duplex fixtures on one pole facing
opposite directions. Each compressor will also have a door light and a wall mounted light at
the end of each cooler. In additional all office, motor control center, power distribution
center, and compressor buildings will have a wall mounted light at each door.
Please see Appendix for lighting plan and reasonable facsimile of lights selected for the site.
Weed Control
The site will be kept free of weeds, rubbish, and other waste material . The area will be
treated if necessary and as practicable to prevent invasion of undesirable species and
noxious weeks.
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3. Required Permits
Weld County
A Use by Special Review Permit is required to be approved by the Board of County
Commissioners prior to construction, including release of grading permits for this facility.
Kerr-McGee Gathering, LLC will submit any additional permits necessary for County
Approval prior to commencement of construction site .
Fort Lupton Fire Protection District
The Site Plan and Special Review Use Application will be referred to and reviewed by the
Fort Lupton Fire Protection District. Approval of the plans is expected . Any requested
MSDS sheets will also be provided to the Fort Lupton Fire Protection District.
Oversize Load Permits
If necessary, oversize load permits will be obtained through Public Works prior to
construction .
Grading Permit
A grading permit is needed for disturbing an area of 1 acre or more. A grading plan will be
submitted and approved by Public Works prior to construction .
Access Permit
The access point for the facility is located off of Weld County Road 21 . This entry point is
already existing meets all of Kerr-McGee/Anadarko's access requirements and a new access
permit has been issued (AP 14-00041) . Please see Appendix for copy of approved access
permit.
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4. Traffic
The construction process will involve site grading with equipment, including but not limited
to, motor graders, front end loaders, excavation equipment, and possibly scrapers. Heavy
hauls involving the compressor units and some of the larger process equipment will be
necessary, as will the use of large truck mounted cranes to unload and set this equipment.
The length of the heavy haul trailers will determine the required access to the site off the
county roads, although typically this has been an apron off the county road of about 75-100
feet necking down to a fenced/gated opening of around 40 feet . This would again depend
on the available turning radius off the county road . There will also be concrete trucks and
pumpers on a regular basis during construction . Anticipated staffing during the construction
of the facility is estimated at 30-40 personnel during peak construction . Estimated 3-4 office
trailers and anywhere from 5-8 tool and parts vans/conex buildings. Please see Use By
Special Review Questionnaire for traffic detail post construction .
5. Fire and Emergency Response
There is adequate provision for the protection of the health, safety, and welfare of the
inhabitants of the neighborhood and County.
All roads leading to the site and within the site will be designated and maintained to
support fire apparatus. A turnaround may be constructed as necessary to accommodate
fire apparatus. In addition to above-referenced rules and regulations, Anadarko is also
subject to COGCC Rule 6064 pertaining to Fire Prevention and Protection . Anadarko has
support personnel in the field or on call at all times to provide technical assistance in fire
prevention and elimination .
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Emergency I nformation Sheet
1 . General Information: The purpose of this document is to provide ownership information
case of emergency. It may be used by outside agencies, company employees, and contract labor
to help secure a speedy recovery from such emergency situations:
A. Name and Address:
Kerr-McGee Gathering, LLC
1099 18`h St, Suite 1800
Denver, CO 80202
B. Type of Facility:
Compressor Station
C. Location and Access:
Part of the Southeast Quarter of Section 22, Township 2 North, Range 67 West. 6th P.M.
All proper warning signs and equipment guards will be installed.
2. Emergency Contact List: The following is a list of Anadarko personnel and
organizations that may be contacted in the event an emergency occurs at the facility.
Due to the nature of this being a midstream facility, any emergency will necessitate Kerr-
McGee personnel to respond to the issue and resolve with our standard company protocol.
Kerr-McGee has trained personnel available 24/7 to respond to incidents and engage local
officials as appropriate. Kerr-McGee/Anadarko's Integrated Operations Center provides
24/7 monitoring and emergency response that number is 1-866-504-8184. In any case the
following personnel at Anadarko can be reached if necessary:
Paul Schneider - Sr. Staff EHS Representative
1099 18th St, Suite 600
Denver, CO 80202
(720) 929-6726 office
(303) 868-6665 mobile
Patrice Barnett - EHS Representative II
635 N. 7th Ave.
Brighton, CO 80601
(303) 655-5310 office
(720) 325-3429 mobile
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Jeff Jones - Sr Staff EHS Representative
4000 Burlington Avenue
Evans, CO 80620
970-506-5925 office
307-262-2899 mobile
Midstream Emergency Response Contact List
Incident Contact Phone Number Comments
Fire, Fort Lupton Fire 911 or
explosion, Protection District (303) 857-4603
serious injury
Weld County Police 911 or
Department (970) 356-4015
COGCC (303) 894-2100
Fire,
explosion, Fort Lupton Fire 911 or
associated Protection District (303) 857-4603
with loss of
well control
Weld County Police 911 or
Department (970) 356-4015
COGCC (303) 894-2100
Commercial well control
Boots & Coots (281) 931-8884 contractor.
Reporting required for spills
of crude oil, produced water,
or E&P waste exceeding 5 bbl
Spill or release COGCC (303) 894-2100 in containment or 1 bbl
outside of containment, or all
spills that impact surface or
ground water
Reporting required for spills
Fort Lupton Fire 911 or impacting surface water or
Protection District (303) 857-4603 for reportable quantity spills
of CERCLA hazardous
substances.
Colorado Department of Reporting required for spills
Public Health and (800) 886-7689 impacting surface water or
Environment for reportable quantity spills
Anadaricu2
Petroleum Corporation
Page 121
of CERCLA hazardous
substances.
Reporting required for spills
impacting surface water or
US EPA (800) 227-8917 for reportable quantity spills
of CERCLA hazardous
substances.
Reporting required for spills
(800) 424-8802 impacting surface water or
National Response Center for reportable quantity spills
of CERCLA hazardous
substances.
Clean Harbors (406) 370-6595 A commercial spill clean-up
and response contractor
KMG and Tommy Thompson, (720) 929-6724 - o Drilling and completion
Contractor General Manager, Drilling (303) 681-6011 - m operations.
Contacts
Craig Walters (720)929-7720 - o Drilling and completion
General Manager, (281) 381-5604 - m operations.
Completions
720-929-6226 - o Production and Midstream
Shane Fross
307-680-8670 - m Operations
Operations Manager -
Tim Bates 303-655-4352 -o Gathering and compression
Production Supt 303-902-4344 -m
operations
Randy Lavalleur 303-655-5376 - o
Production Supt 303-815-8247 - m Plant operations
Charles Chase, (303) 655-5342 - o Midstream operations.
Sr. EHS Re presentative (307) 399-3911 - m
Rick Morrish (303) 655-4305 - o Midstream operations.
Staff EHS Representative (303) 570-4745 - m
Anadarici
Petroleum Corporation
Page 122
Depiction of Signs at Entrance Gate
ANADARKO
(970) 339-1020 or (303) 659-5922
Authorized Personnel Only
Solo Personal Autorizado
No Smoking Beyond this Point
No Fumar Partir De Este Punto
Wear Protecitive Equipment
Use Equipo De Proteccion
TRI-TOWN COMPRESSOR STATION
Part of the NW 1/4 of Section 22 - T2N - R67W
DANGER: HIGH IN CASE OF FIRE OR
PRESSURE GAS MEDICAL EMERGENCY
CALL 911
kg
Kerr!Vt Gee
TRI-TOWN COMPRESSOR STATION
Part of the SE 1/4 of Section 22 - T2N - R67W
Anadadcu2
Petroleum Corporation
Page 123
Communications Tower Depiction
404, a •
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Anadarkp:
Petroleum Corporation
WELD COUNTY ACCESS PERMIT
o Weld County Public Works Dept. �>4101brA Phone: (970) 304-6496
1111 H Street '� After Hours: (970) 356-4000
P.O. Box 758 -o o Emergency Services: (970) 304-6500 x 2700
Greeley, CO 80632 G CCD Inspection: (970) 304-6480
y �4 /C W °
Permit Number: AP14-00041
Issuance of this permit binds applicant and its contractors to all requirements, provisions, and ordinances of Weld County, Colorado.
Project Name: Snake Pit Well Pad and Facilit Expiration date: 08/05/2014
Applicant Information: Property Owner Information:
Name: Trevor Payne Name:
Company: Kerr-McGee Oil & Gas Onshore LP Company: Anadarko E & P Company LP
Phone: 720-929-6448 Phone: 720-929-6000
Email: trevor.payne@anadarko.com Email:
Location: Proposed Use:
Access is on WCR: 21 Temporary:
Nearest Intersection WCR: 18 & WCR: 21 Single Residential:
Distance From Intersection: 670 Industrial:
Number of Existing Accesses: 3 Small Commercial:
Planning Process: Oil & Gas: 0
Large Commercial:
Road Surface Type & Construction Information: Subdivision:
Road Surface: Gravel Field (Agricultural
Culvert Size & Type: 15" Culvert Only)/Exempt:
Start Date: 03/15/2014 Finish Date: 06/14/2014
Materials to Construct Access: Expansion-Class 6 Road Base
Required Attached Documents Submitted:
Traffic Control Plan: Certificate of Insurance: Access Pictures: Yes
A copy of this permit must be on site at all times during construction hours
Daily work hours are Monday through Friday DAYLIGHT to 1/2 HOUR BEFORE DARK (applies to weekends if approved)
Approved MUTCD traffic control/warning devices are required before work begins and must remain until completion of work
Special Requirements or Comments
Parcel 131122000007. Utilize existing access points on CR 21 (2-O&G) located 670 ft. & 1915 ft. North of CR 18. Utilize
existing access point on CR 18 (1 -O&G) located 2000 ft. West of CR 21 . Note: CR 18 is a Collector roadway with a 60 ft.
setback from centerline.
Approved by: Weld County Public Works Date: 2/5/2014
Print Date -Time: 2/5/2014 2:24:06PM Report ID: PW00008v001 Page 1 of 1
TECHNICAL MEMORANDUM CH2MHILL®
0 REG/9>
PREPARED FOR: Weld County Public Works 4 ' N&f
2-25 - 1 Q
COPY TO: Nathan Keiser 3� 579 !
1� r0 I r , ,
PREPARED BY: Ronald B. Heitland, CH2M HILL Engineers, Inc. +.4*',• i
t, '� •••••n •'`a
DATE: February 25, 2014 ''' /ONAL.
RE: Site Drainage Narrative
This memorandum is intended to outline the historic drainage patterns, proposed improvements, and water
quality capture feature design for the above referenced gas support facility.
OVERVIEW
The site is located in the SW 1/4 of the SE 1/4 of Section 22, Township 2 North, Range 66 West of the 6th Principal
Meridian, Weld County, Colorado. The project entails the construction of a new gas compressor station. The site
fenced boundaries encompass approximately 19.4 acres within the parcel number 131122000007 owned by
Anadarko E & P Company LP.
The majority of the existing site generally slopes north to south from 0% to 8.5%, while the northeast corner
slopes west to east at approximately 2.8%. Existing vegetation such as native pasture grasses over the entire
parcel currently serve as filtration and reduce sheet flow. The majority of the existing site drainage flows in a
southerly direction until intercepted by County Road 18 associated roadside swales and bar ditches that would
carry runoff easterly along the road. The northeast corner of the existing site drainage flows southeasterly until
intercepted by County Road 21 associated roadside swales and bar ditches that would carry runoff south along
the road .
The site is not located within a FEMA designated floodplain, as per preliminary Flood Insurance Rate Map number
08123C2105E.
The proposed site would include skidded buildings and equipment, gravel drives, gravel work areas, and berms
covered with native grasses. The existing limited parcel drainage to the north of the site that presently drains
across the site, would be directed around the site using earthen berms that will be replanted with native grasses.
The onsite drainage would be directed to a proposed Water Quality Capture Feature located at the south end of
the site.
WATER QUALITY CAPTURE FEATURE
The water quality capture feature will consist of an onsite basin that will collect the storm water run-off from the
site.
The Water Quality Capture Volume (WQCV) of the feature is calculated based on the Urban Storm Drainage
Criteria Manual, Volume 3, Section 3.3, Equation 3-1.
WQCV = a (0.9113 - 1. 1912 + 0.781)
Where:
WQCV = Water Quality Capture Volume (watershed inches)
a = Coefficient corresponding to WQCV drain time, from Table 3-2 of the reference
PAGE 1 OF 2
= 1.0, conforms to a 40 hour drain time as required in the Weld County Engineering and Construction
Criteria, Section 5. 11.1
/ = Composite Imperviousness of Site (%/100)
The composite imperviousness of 0.42 for the site was calculated based on the following data :
LAND SURFACE CHARACTERISTICS IMPERVIOUS FACTOR TRIBUTARY
(Note 1) CATCHMENT ACREAGE
Buildings 0.90 0.9
Greenbelts, agricultural 0.02 0 (Note 2)
Gravel (packed) 0.40 18.2
TOTAL ACRES = 19. 1
Note 1: Impervious factor from the Urban Storm Drainage Criteria Manual, Volume 1, Section 2.7, Table
RO-3
Note 2: The area of grass covered berms was conservatively assumed as gravel (packed) covered.
Therefore, WQCV = 1.0[(0.91 x 0.423) - (1.19 x 0.422) + (0.78 x 0.42)]
= 0. 185 watershed inches
The required storage volume of the basin is then calculated as:
V = WQCV(A)
12
Where:
V = Required storage volume (acre-ft)
A = Tributary catchment area upstream (acres)
Therefore, V = (0.185 watershed inches) _19. 1 acres'
12
= 0.29 acre-ft
= 12,827 cubic feet
The proposed berms along the east and west sides of the site will control the site drainage and direct it to a storm
water basin at the south end of the site. Specifically, for the compressor area, storm drainage will be directed to
the four perimeter sides of the compressor area. The west and south sides will sheet flow to the storm water
basin. The north and east sides of the compressor area will be directed to a grass lined drainage trench that will
include low point inlets and underground piping that will discharge into the basin. The storm drainage for the
equipment/pipe laydown area, will sheet flow to the storm water basin. The proposed basin will extend east-
west for a width of approximately 1000 feet and will provide storage for approximately 128,000 cubic feet.
PAGE 2 OF 2
Noise Abatement Plan — Tri-Town Compressor Station
Introduction
The Tri-Town Compressor Station is a proposed Kerr-McGee facility located in Weld County. This facility
is needed to help transport the increasing amounts of natural gas to processing facilities where it is then
prepared for sale to market. Kerr-McGee has taken steps to attenuate noise originating from this site
and will continue to take the necessary actions to comply with COGCC noise regulation . The following
plan outlines how noise is mitigated at the Tri-Town Compressor Station site.
Location and Surrounding Land Use
The proposed Tri-Town Compressor Station is located one-half mile west of the intersection of WCR 18
and WCR 21 in an area zoned for agriculture with limited/extensive residential development.
Proposed Improvements
Kerr-McGee is proposing the installation eight (8) compressors. There will be six (6) CAT3606LE/Ariel
JGK-3, and two (2) 3750 HP units. There will also be one 60,000 gallon slug catcher, three (3) 30 MMscfd
coalescing filter separators, three (3) 30 MMscfd TEG dehydrator-condenser-VRU, one condensate
pump skid and associated piping and electrical infrastructure.
Noise Regulation and Goal
There is no equipment presently at the proposed site. Under the current COGCC regulations,
permissible noise levels cannot exceed 55 dBA during the day or 50 dBA at night. Kerr-McGee will
ensure the installed equipment complies with these COGCC regulations. Kerr-McGee also has the
ultimate goal of not exceeding 50 dBA at all times and will be measured at the fence line of the facility.
Efforts to Date
Kerr-McGee has already begun efforts to reduce noise on-site by designing High Specification Noise
Suppression Packages ( HSNSP) for the first three Cat3606LE/Ariel JGK-3 compressor/cooler packages.
This includes a cooler silencer, a noise attenuated building over the engine and compressor, a
combustion air intake silencer, and a hospital grade muffler on the engine exhaust. The other three
proposed CAT3606LE/Ariel and two 3750 HP will be installed with the same cooler silencers and hospital
grade mufflers on the engine exhaust or lower noise emitting coolers.
Assessment and Attenuation
Upon operation Kerr-McGee will conduct a noise survey to determine if noise levels meet COGCC
requirements. If noise exceeds levels then sound walls or insulation will be built around the identified
problem equipment. Ventilation packages may also need to be installed to ensure that the equipment is
able to operate while being completely enclosed .
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Light ing
Roadway & Security Fixtures
I Roadway and Security Fixtures ,c0.2 GE L/77-10/V/A . ____ 2
OW Lighting Solutions I� L/GNT//NG lall i
• Lamps not included, except Nbs. 18N219, SECu Fa t y Lighting
18N220, 1 FLJ3, and Contour® Area Lighting • Include cast-in external slipfitter for
Durable, lightweight, die-cast aluminum fixtures bolt easy mast arm installation
securely onto mast arm mounting. • De-cast aluminum head meets
gE Light ing SoLut ionS Roadway NENIAdimension standards
N 21 7
• Mogul-base socket is. P� and 2LBL8 h r have a small profile for use in
`
• Rug-in ignitor for easy maintenance commercial applications. No. 1FLJ3 includes lamp aid Area/Roadway
• Bolt to 112" to 2" dia. mast arm mounting photocell; mounts directly to a 4" "J" box. Nis. 21 DT
aid 44%479 feature lightweight aluminum housing,
An adjustable photocell controls HD(high intensity
discharge) light sources. F�lye�er gasket locks out prismatic refractor, and a 5" mounting arm. Nis.
dust and dirt. Gay powder-coated finish. R�atocell 21 W 6 and 2l RL5 have a powder-coated housing,
or shorting cap required sold separately on page high-impact diffuser, and protective steel cage. fib. dirlie
5YB41 induces 18" mast arm, lamp, photocontrd,
451 . Nbs. 18N219 and 18N220 include integral surge hardware. Nb. 5YB'!'1 features a coder-running
protection. ballast, 392°F wiring, and phosphor bronze contacts. Area/Roadway
Full aitoff optics, nos. 4wy41 , LL Listed.
4wy40, and 4wy45
Cont ouF
True 90° cutoff (no light above 90°) meets IESf'A Horizontt a Lighting
al porcelain mogul socket
full cutoff classification FF8-2000. Nbs. 4VW41 and • Include extruded 4" arm for square pole mounting
4WY40 have easy-to-doan, corrosion-freeALCLAS'' Pill:
reflector surface coating. Fixtures have a dark bronze corrosion-resistant
polyester finish and soft corners. Lie-cast alumi-
Frismati c Lens. nos. 4wy42 to num fixtures have soft corners and a dark bronze.
4wy44, 18n219, and 18n220 H'droformed aluminum reflector and multitap ballast.
R-oject light farther; use fewer poles on new installa- IFo5 Fated. U.. Listed for wet locations.
tions to save on operating costs. Mount ingBRaCkEtS and aO SSoRiES __-_,-e-
a REa/Roadway as brackets for pole or wall mounting have 42-lb. _
Ifi• otocontrol receptacle adjusts without tools capacity hb. 4EA34. has 87-lb. capacity. Security
• Bolt to 114"-dia. mast arm mounting Lighting k
SquaRE Mount ing FoLES r
Built-in wildlife shield adjusts to fit most arms. 1-bat- 1. ' +?k - •
resistant gasket seals the optical chanter from F�quire proper evaluation to ensure structural integrity J.
envi rani rierltal contaminants. Terminal block standard. in specific local wind conditions. 1-pc., square straight 1
Nbs. 511345 to 5YB47 are pre-wired and indude hard lighting pdes have a 4" dia. shaft and anchor ham
ware. � � with slotted holesst . . Hot-rolled, 11-ga. steel construc-
tion. Dark brorizepowder-coated finish. contour
Area Lighting
Nbte: Fa a wider seledicn of lighting poles and for assistance in
pole selection, please call your local branch.
Suggested Suggested
Lamp Light Photocell Lamp Item $
Lamp Type Voltage Watts Lens Type Distribution Item No. L W H Item No. &and Mfr. Series No. Eadi
Area/Fbadway
HPS 120 100 Drop Acrylic Type II 6F006 10" 13" 27" 2V519 Lithonia 115 5YB45 `✓ 140.30
HPS 120 150 Rat Gass Type III 5U793 53'a" 13Y4" 26Y4" 2VAD7 GE Lighting M2RC 4WY41 ✓ 307.00
HPS 120 150 Crop Acrylic Type II 5U793 103/2" 13Y4" 26Ye 2VAD7 G=Lighting M2RR 4WY43 ✓ 302.75
HPS 120 150 Crop Acrylic Type II 6P006 10" 13" 27" 2VAD7 Lithonia 115 5YB46 " ✓ 149.35
HPS 120-277 250 Rat Gass Type Ill _ 5U793 53'4" 13Y4" 26Y4" 3APT5 G-Lighting M2RC 4WY40 325.25
HPS 120-277 250 Drop Gass Type III 5U793 10Y2" 13Y4" 26Y4" 3APT5 GE Lighting M2RR 4WY42 333.25
HPS 120-277 250 Drop Gass Type III 5U792 10" 13" 27" 3APT5 Lithonia 115 5YB47 *✓ 229.25
HPS 120-277 400 Rat Gass Type I l 5U793 SW' 15Y4" 313'x" 3APT6 CE Lighting msa 4WY45 ✓ 520.50
HPS 120-277 400 Prismatic Drop Gass Type III 5U793 14Ye 15" 313'4" 3APT6 CT Lighting MSRL 4WY44 503.50
PMH-EE 120-277 400 Prismatic Gass Len M-GI II 5U793 3113'16' 15Ys" 14%16' 3APK4 G=Lighting MSCL 18N219 671.50
PMH-EE 120-277 400 Prismatic Gass Len M-Gl II 5U793 3113'16" 15Ys" 14%16" 3APK4 G=Lighting MSC_ 18N220 562.00
MH 120-277 400 Tempered Gass Type Ill — 33" 25" 8Y4" 6XV25 Lithonia MR2 3JXC9 ✓ 1,028.00
MH 120-277 400 Tempered Gass Type IV — 33" 25" 8Yi" 3APK3 Lithonia MR2 3JXD1 1,090.00
Security Lighting
MH 120 50 Acrylic Type V — 9Ye 8Y4" 10Y2" 1F398 LumaPro — 2LBL7 / 255.75
HPS 120 70 Polycarbonate Type V — 10Xe 8Y 73'4" 2V632 Lithonia G LD 1 PLJ3 1 87.05
MH 120 70 Acrylic Type V 6P006 12W 9Yi' 16W' 2F942 LumaPro — 2HER6 1 159.00
HPS 120 70 Acrylic Type V — 93'4" 814" 10Y2" 2YC6 LumaPro — 2LBL8 ✓ 163.00
HPS 120 70 Acrylic Type V 6F006 15Y2" 12" 17' 2YCF6 LumaPro — 4VM79 / 184.50
MH 120 100 Polystyrene Type V 6P006 15W 13" 17" — LumaPro — 21 PJ 6 ✓ 314.75
MH 120 100 -- Type V 6P006 15Y2" 13" 17" 2YGC6 Lithonia TDD 6J6N7 ✓ 191.50
HPS 120 150 Polystyrene Type V 6F006 15W 13" 17" 2YC 1 LumaPro — 21 R 5 ✓ 239.50
HPS 120 150 Acrylic Type V 6P006 15W 13" 17" 2V713 Lithonia TDD 6JBVI8 ✓ 155.00
Contour" Area Lighting
MH 120-277 250 Tempered Gass Type III — 17W 17W 7Ys" 3APK1 Lithonia KAD 3JXC5 1 720.00
I'S Li
401 Tempered Gass Type III 7Ya" _6X125___ Lithonia_ 2., / 800.50
400 Tempered Gass Type IV 6XV25 Lithonia_ ✓ 800.50
�curity/Area Lighting
HPS 120 100 Acrylic TypeV — 15Y2" 12" 12" 2VAD5 Lithonia 11L 5YB41 ✓ 95.90
Hr'S 120 100 Acrylic TypeV 6P006 15W 12' 17' 2V519 Lithonia 11 5YB44 110.50
L W H Mfr. Item $ Mfr. Item $
Description (in.) (in.) (in.) Brand Model No. Each L W Brand Model No. Each
Mounting Brackets and Accessories .
:J: IEs 4 2 5 Lithonia WBE04 4EA33 73.80 16 ft. 4" Lithonia SSS 16 4C DM28 5YB49 687.50
Fble Slipfitter Bracket Mount 14Y4 2%s 2%s Lithonia T20-190 4E434 125.95 PL DDB SHAFT
;se with KAD Seri e_ 4 2 5 Lithonia RPD04 U 4EA35 57.05 SSS 20 4C DM28
•
Photocell Receptacle Shorting Cap — — — CB Lighting Sal-PCCTL003 4WY49 11.53 20 ft. 4" Lithonia PL DDB SHAFT 5YB50 727.00
* Photo cel I receptacle. 25 ft. 4" Lithonia SSS 25 4C DM28 5YB51 940.50
PL DDB SHAFT
1 For Photocells, see page 451 .
712 GRAINGER® Find even MORE on Grainger.com® 1= Repair & Replacement Coverage Available
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PROPOSED EQUIPMENT IIIO€X
ITEM No I ITEM DESCRIPTION OTY CONgiRUCT1ON
PHASE
• VENT RECEIVER 1
[ HP DIAPHRAGM PUMP 1
3 IFLECTRIC COMPRESSOR 2 ? '
4 5LuG CATCHER 1
IS-
S ,LU8 E OIL TANK, COOLANT TANK . METHANOL TANK 1 EA. 1
1
IM LACT SKID 1 '
•
7 FUEL GAS CONDMONWG SYSTEM 1
a i FUEL GAS II EIER 1
0 INLET/DISCHARGE PPING (ON PPERACKS ► 1
0 :AP RECEIVER 2 1
11 TEE SUPPORTS 1
12 , E LE CTRIICAL SWITCHYARD 1 a
13 AMR COMPRESSOR SKID 1 1
14 60' MOTOR CONTROL CENTER 1 1
I
15 12. 5kV TRANSFORMER 1 1
IS INLET SEPARATOR 2 t!1ttt
1E 3
17 GAS COMP RE S sOR S p) N PHASE t
(3) N PHASE 2
18 JUNCTION PPING (ON PPE RACKS) ` 1 1
19 GENERATOR 1 * I
20 VCONTROL ROOM 1 1a a
21 T0' RA01O TOVvE R _ 1
22 CCNNECTtdG PIPE (WIDE l*ACKI) 1
' (1 ) N PHASE 1
23 GLYCOL REGEN SKID 3 (1 ) N PHASE 2.
(1) N PHASE 3
(1 ) N PHASE 1
24 STEXSKID 3 (1 ) N PHASE 2
(1 ) N PHASE 3
(1 ) N PHASE 1 .
25 VAPOR RECOVERY 5 MN PHASE 2
(3) N PHASE 3
MN PHASE 1 .
a C OA LE SC NG SKI() 3 (1) N PHASE 2:
t1? N PHASE 3
,
27 3-PHASE SEPARATOR 1 S
3e WATER STORAGE 1 3
2a GAS RECEIVER 1 1
30 CONDENSATE LAUNCHER 1 1
31 OIL LINE LAUNCHER 1 1
32 4GAS LAUNCHER as
33 OYLCOL TANK 1 '
S. POWER DISTRIBUTION CENTER 1 3
TECHNICAL MEMORANDUM CH2MHILLz
I 4/p 11
•VVV 1
BPIF/ ..t11
PREPARED FOR: Weld County Public Works l -
V I
COPY TO: Nathan Keiser, Anadarko Petroleum Corporation i 31 /
I
PREPARED BY: Ronald B. Heitland, CH2M HILL Engineers, Inc.
5;
DATE: July 1, 2014 ^ ��:� " __
RE: Anadarko Tri-Town Compressor Site - Site Drainage Narrative (Revised)
This memorandum is intended to outline the historic drainage patterns, proposed improvements,and water
quality capture feature design for the above referenced gas support facility.
OVERVIEW
The site is located in the SW 1/4 of the SE 1/4 of Section 22,Township 2 North, Range 66 West of the 6'^Principal
Meridian,Weld County,Colorado. The project entails the construction of a new gas compressor station. The
developed site encompasses approximately 19.1 acres within the parcel number 131122000007 owned by
Anadarko E&P Company LP.
The majority of the existing site generally slopes north to south from 0%to 8.5%,while the northeast corner
slopes west to east at approximately 2.8%. Existing vegetation such as native pasture grasses over the entire
parcel currently serve as filtration and reduce sheet flow. The majority of the existing site drainage flows in a
southerly direction until intercepted by County Road 18 associated roadside swales and bar ditches that would
carry runoff easterly along the road, to an existing 18 inch corrugated metal culvert, located approximately 400
feet west of County Road 21. The northeast corner of the existing site drainage flows southeasterly until
intercepted by County Road 21 associated roadside swales and bar ditches that would carry runoff south along
the road until it intercepts County Road 18. The drainage then flows west to the same 18 inch culvert. The runoff
exits the culvert at the roadside swale on the south side of County Road 18,and follows the natural topography to
a depression/wetland located in an undeveloped field that starts approximately 150 feet south of the road and
extends for approximately another 1200 feet south. The drainage infiltrates into the ground at this location.
The site is not located within a FEMA designated floodplain,as per preliminary Flood Insurance Rate Map number
08123C2105E.
The proposed site would include skidded buildings and equipment,gravel drives,gravel work areas,and berms
covered with native grasses. The existing limited parcel drainage to the north of the site that presently drains
across the site,would be directed around the site using earthen berms that will be replanted with native grasses.
The onsite runoff will be directed to perimeter grass lined drainage channels located on the west, north,and east
sides of the site. The channels will carry the drainage to a proposed Water Quality Feature at the south end of the
site. Sheet flow across the site and into the Water Quality Feature will also occur.
The overall parcel size is approximately 158.6 acres. The parcel imperviousness,after the site development and
the installation of the access roads,will be 5.8%.
The peak flow from the 10 year storm event for the developed site increases only 3.2 cubic feet per second over
the historic peak flow from the same event,while,the peak flow from the 100 year storm event for the developed
site is approximately the same as the historic peak flow from the same storm event. Therefore,there should not
be any adverse downstream impacts.
Additionally, no onsite drainage concerns have been reported.
PAGE 1 OF 3
ANADARKO TRI-TOWN COMPRESSOR SITE-SITE DRAINAGE NARRATIVE(REVISED)
It should be noted, though, that the previously referenced 18 inch culvert that discharges the runoff to the south
side of County Road 18 is presently undersized.
WATER QUALITY CAPTURE FEATURE
The water quality capture feature will consist of an onsite basin that will collect the storm water run-off from the
site.
The Water Quality Capture Volume(WQCV)of the feature is calculated based on the Urban Storm Drainage
Criteria Manual,Volume 3,Section 3.3, Equation 3-1.
WQCV= a(0.9113-1.19/2+0.78!)
Where:
WQCV =Water Quality Capture Volume (watershed inches)
a =Coefficient corresponding to WQCV drain time,from Table 3-2 of the reference
= 1.0,conforms to a 40 hour drain time as required in the Weld County Engineering and Construction
Criteria,Section 5.11.1
! =Composite Imperviousness of Site(%/100)
The composite imperviousness of 0.34 for the site was calculated based on the following data:
LAND SURFACE CHARACTERISTICS IMPERVIOUS FACTOR TRIBUTARY
(Note 1) CATCHMENT ACREAGE
Buildings 0.90 0.9
Greenbelts,agricultural 0.02 4.3
Gravel (packed) 0.40 13.9
TOTAL ACRES= 19.1
Note 1: Impervious factor from the Urban Storm Drainage Criteria Manual,Volume 1,Section 2.7,Table
RO-3
Therefore,WQCV = 1.0[(0.91 x 0.343)—(1.19 x 0.342)+(0.78 x 0.34)]
=0.163 watershed inches
The required storage volume of the basin is then calculated as:
V= WQCV(A]
12
Where:
V= Required storage volume(acre-ft)
A= Tributary catchment area upstream (acres)
Therefore,V =(0.163 watershed inches)(19.1 acres)
12
=0.26 acre-ft
PAGE 2 OF 3
ANADARKO TRI-TOWN COMPRESSOR SITE $TE DRAINAGE NARRATIVE REV, EC:
= 11,326 cubic feet
Due to the length of the channels that convey the runoff from the perimeter of the site to the WQCV pond, the
required volume was increased by 2O%u to account for sediment build-up, as recommended in the Urban Storm
Drainage Criteria Manual.
Therefore,VADJUSTED =0.31 acre-ft
= 13,591 cubic feet
The proposed WQCV basin will extend east-west for a length of approximately 1004 feet and a width of 10 feet.
The basin will include a storage volume of 0.32 acre-ft, or 14,117 cubic feet,at a maximum depth of 1 foot.
Volumes in excess of the basin capacity will be discharged from the basin and will follow the historic drainage
path to the south side of County Road 18.
PAGE 3 OF 3
STATE OF COLORADO
Bill Owens, Governor
Dennis E. Ellis, Executive Director �.oV•cotO
Dedicated to protecting and improving the health and environment of the people of Colorado (/
4300 Cherry Creek Dr. S. Laboratory Services Division
Denver,Colorado 80246-1530 8100 Lowry Blvd.
Phone(303)692-2000 Denver,Colorado 80230-6928 /e?a
TDD Line(303)691-7700 (303)692-3090 Colorado Department
Located in Glendale,Colorado
of Public Health
http://www.cdphe.state.co.us and Environment
4/4/2006
Fred Clausen, Sr. Superintendent Drilling
Kerr McGee Rocky Mountain LLC
3939 Carson Avenue
Evans, CO 80620
970/330-0614
RE: Final Permit,Colorado Discharge Permit System—Stormwater
Certification No: COR-039798,Adams County
Area 2
Local Contact: Keith Kilcrease,Area Superintendent,970/330-0614
Anticipated Activity: 03/30/2006 through 12/31/2008
On>5 acres(>5 acres disturbed)
Dear Sir or Madam:
Enclosed please find a copy of the permit certification that was issued to you under the Colorado Water Quality Control
Act.
Your certification under the permit requires that specific actions be performed at designated times. You are legally
obligated to comply with all terms and conditions of your certification.
Note that the stormwater permit for construction activities now covers construction sites disturbing down to one acre(the
previous threshold was 5 acres). Effective July 1,2002, any construction activity that disturbs at least 1 acre of land(or is
part of a larger common plan of development or sale that will disturb at least 1 acre)must apply for permit coverage.
Please read the permit and certification. If you have any questions please visit our website at
http://www.cdphe.state.co.us/wq/permitsunit/wgcdpnn.html,or contact Matt Czahor at(303) 692-3575.
Sincerely,
Kathryn Dolan
Stormwater Program Coordinator
Permits Unit
WATER QUALITY CONTROL DIVISION
Enclosure
xc: Regional Council of Governments
Adams County Health Department
District Engineer, Technical Services, WQCD
Permit File
Fee File
Permit No. COR-030000
Facility No. COR-039798
PAGE 1 of 17
CERTIFICATION
CDPS GENERAL PERMIT
STORMWATER DISCHARGES ASSOCIATED WITH
CONSTRUCTION
Construction Activity: Oil & Gas Field Development
This permit specifically authorizes: Kerr McGee Rocky Mountain LLC
to discharge stormwater from the facility identified as Area 2
which is located at: map in file
Denver, Boulder, Broomfield, Co
latitude 40.081, longitude 104.717 in Adams County
Boulder Creek to: South Platte River
effective: 04/04/2006
Annual Fee: $270.00 (DO NOT PAY NOW. You will receive a prorated bill.)
STATE OF COLORADO
John W. Hickenlooper. Governor or coZON
Christopher E. Urbino, MD, MPH a`r' `cw
Executive Director and Chief Medical Officer
0
F� o
Dedicated to protecting and improving the health and environment of the people of Colorado
4300 Cherry Creek Dr. S. Laboratory Services Division /876��
Denver. Colorado 80246-1530 8100 Lowry Blvd.
Phone(303)692-2000 Denver. Colorado 802.30-6928 Colorado Department
Located in Glendale,Colorado (303) 692-3090 of Public Health
http:Uwww.cdohe.state.co.us and Environment
June 21, 2012
RECEIVE' ,�.
_.J E
Paul D Schneider, Sr Staff EHS Rep
Kerr McGee Oil & Gas Onshore LP
1099 I8 St Ste 1800
Denver, CO 80202
RE: Renewal of Permit/Certification
Administrative Continuation
For: Area 2 Kerr
Located at: See Map in File, Denver & Boulder & Broomfield, Adams County
Permit No.: COR039798
Dear Mr. Schneider;
The Division has received an application to renew the above permit/certification. It has been determined
that there is sufficient information to make this permit/certification eligible for renewal. More information
may be requested by the Division as progress is made in developing a new permit/certification for the
above listed facility. This information must be made available to the Division when requested to complete
the permit process.
The Division is currently in the process of developing a new permit or master general permit and
associated certification for the above permitted facility. The development and review procedures required
by law have not yet been completed. When the discharge permit issued to you for your facility expired on
June 30, 2012 your permit is administratively continued and remains in effect under Section 104(7) of the
Administrative Procedures Act, C.R.S. 1973, 24-4-101, et seq (1982 repl. vol. 10) until the new
permit/certification is issued and effective.
All effluent permit terms and conditions in your current permit will remain in effect until your new
permit/certification is issued and effective.
PLEASE KEEP THIS LETTER WITH YOUR PERMIT AND SWMP TO SHOW
CONTINUATION OF PERMIT COVERAGE.
Sincerely,
Debbie Jessop
Permits Section
WATER QUALITY CONTROL DIVISION
xc: Permit File
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