2010-08-18_REVISION - C1982056

• Permit No: C1982056
• IBM Index Class Name: REVISION
• Doc Date: 8/18/2010
• Doc Name: Letter & Appplication
• From: Twentymile Coal Company
• To: DRMS
• Type & Sequence: MR246
• Email Name: JDM
• Media Type: D
• Archive: No

Peabody
Twentymile Coal Company
Mr. Jason Musick
Environmental Protection Specialist
Colorado Division of Minerals and Geology
1313 Sherman Street, Room 215
Denver, Colorado 80203
[phone] X8134
29515 Routt County Road #27
ak Creek, CO 80467
?0 9.3800
AUG 18 2010
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RE: Twentymile Coal Company - Foidel Creek Mine (Permit No. C-82-056), Minor Revision
(MR09-246) for Fuel Storage and Fueling Station Upgrades
Dear Mr. Musick:
Twentymile Coal Company (TCC) requests CDRMS approval of a Minor Revision (MR09-246) to the
approved Permit, for upgrades to our fuel storage and fueling station installations. The proposed upgrades
address recognized limitations of the existing facilities, and are designed to provide enhanced
containment, improved control and clean-up capabilities for any minor spillage, and to effect full
compliance with recent revisions to the Spill Prevention, Control, and Countermeasures (SPCC)
requirements under the Clean Water Act.
The fuel storage and fueling installations to be upgraded are all within our Mine Facilities Area, as shown
on the Mine Facilities Map, Map 24 (Sheet 1/4), and include the following locations:
1. Gasoline Storage and Fueling Installation - Located in Storage Yard north of Mine
Office/Bathhouse Facility
2. Main Diesel Storage Tank and Fueling Installation - Located adjacent to Dry Storage Shed,
directly across and south of the Mine Shop/Warehouse Facility
3. Run-of-Mine (ROM) Stockpile Diesel Storage Tank and Fueling Installation - Located southwest
of ROM Stockpile, adjacent to the new access road for the Coal Refuse Disposal Area (CRDA)
Expansion
4. Belt-Out-Back (BOB) Area Diesel Storage Tanks and Fueling Installation - Located on the east
side of the BOB Facilities Area, adjacent to the Pond A and Explosives Storage access road
The proposed upgrades will generally involve the following activities:
? Excavation of an incised spill catchment basin at each location, segregation and shipment off-site
for treatment (land-farming) of any petroleum contaminated materials, and movement of any non-
contaminated material to either the CRDA or the permitted overburden stockpile area
? Preparation of the basin areas (will typically involve over-excavation and re-compaction of the
materials)
? Placement of either concrete (installations 1 and 2, above) or HDPE liners (installations 3 and 4,
above) for the spill catchment basins. Where HDPE is used as a liner, the liner will be protected
by a sand cover and crushed stone fill, and drain piping will be installed to carry any spillage and
water accumulations to an oil/water separator.
? Grading of the modified fuel storage and fueling installations to assure effective drainage
? Any necessary minor piping or electrical modifications
G:\Environmental\REVISIONA41NOR-RV\MR10-246 Fueling Station Upgrades\MR10-246 Fueling Station Upgrades TL.doc