2013-07-16_REVISION - C1981022

• Permit No: C1981022
• IBM Index Class Name: REVISION
• Doc Date: 7/16/2013
• Doc Name: Letter Application and Public Notice
• From: Oxbow Mining, LLC
• To: DRMS
• Type & Sequence: TR75
• Email Name: BFB
• Email Name: SB1
• Media Type: D
• Archive: No

*04,004;
OXBOW MINING, LLC
3737 Hwy 133 P.O. Box 535 Somerset, Colorado 81434 USA Tel [phone] Fax
(970)929 -5177
July 12, 2013
Mr. Brock Bowles
Environmental Protection Specialist
Colorado Division of Reclamation, Mining and Safety
1313 Sherman Street, Room 215
Denver, Co. 80203
Re: Oxbow Mining LLC, Permit No. C -1981 -022 'Wt 16 2��3
TR -75 Application for 3MW, LLC pipeline and Borehole.p,�pN
pmM NtN �� SAf�
Dear Mr. Bowles,
The purpose of this letter is to request Technical Revision No. 75 to the Oxbow Mining LLC
(OMLLC) Permit No. C -1981 -022. This TR primarily provides for the modification of the
sealed and reclaimed Sanborn Creek Mine Portal area by 3MWLLC and NorthFork Energy for a
de -gas borehole. The borehole will recover methane gas from the sealed mine and transfer the
gas to a 14 inch HDPE pipeline.
The TR also provides the Division with information regarding the location of the HDPE surface
pipeline that will direct the methane over the mountain ridge located between Sanborn Creek and
Elk Creek. The pipeline will terminate at the North Fork Energy methane to electricity project
located north of the Elk Creek Fan. The methane gas will supplement the supply of gas from the
Elk Creek Mine with the gas from the Sanborn Creek Mine. The Division should recall that due
to the MSHA required sealing of a major portion of the Elk Creek Mine, this pipeline project will
allow the methane energy project to function on Sanborn Creek Mine when gas is shut -off from
the Elk Creek Mine.
Please refer to the attached revised Map 2.05 -M1, Sheets 1, 2 and 3 of 6 for details of the
pipleline route and the borehole pad location. We have also provided revised PAP pages 2.05 -
23d and 2.05 -23e. All of the proposed project will occur on surface owned by Oxbow Mining,
LLC.
Site Construction and Operation
In order to drill the borehole, an elevated pad will first need to be constructed to facilitate the
drill rig and later, any installation of methane pumping and monitoring apparatus. The borehole
will consist of 13 5/8" casing and drilled approximately 60' deep to intersect the mine workings
located inside the permanent mine seals. The borehole may need to be connected to a pump
• Page 1