REV97139

• Permit No: C1980007
• IBM Index Class Name: Revision
• Doc Date: 5/22/2006
• Doc Name: Summary of Adequacy Review
• From: DMG
• To: File
• Type & Sequence: MR334
• Media Type: D
• Archive: No

Summary of Adequacy Review for MR-334
Mine: West Elk Date review completed: 5/22/06
Permit No.: C-80-007 DMG reviewer: Tom Kaldenbach
Require-
ments
Requirements complied Comment
with ? (yes 1
no
Cultural resources Cultural resources studies for the drillpads, boreholes, and light-use road
(2.04.4) yes were previously obtained in TR-96. A USFS clearance letter for MR-334 is
in the file.
Fish/wildlife Fish and wildlife studies for the drillpads, boreholes, and light-use road
information (2.04.10, yes were previously obtained in TR-96. A USFS clearance letter for MR-334 is
2.04.1 1, 2.05.6(2) in the file

and 4.18) .
Maps and plans yes The submittal includes a PE-certified map.
(2.10)
Light-use roads
Yes
The map in the submittal shows the road alignment.
(4.03.3)
Topsoil (4.06) and The reclamation plan in the submittal calls For topsoil stockpiling and
topsoil markers YeS distribution.
4.02.7)
Water quality Runoff can be expected to be alkaline with quality similar to pre-
protection (4.05.2) Yes disturbance conditions. The runoff will be too alkaline to form leachates or
to mobilize metals.
Impoundments The safety factor demonstration for a typical MDW mudpit (from TR-i Ol)
4.05.9) yeS was included in the submittal.
Sediment control yes An SAE demonstration (SEDCAD run) was included in the submittal.
(4.05.5)
Reclamation plan
(2.05.4),backfilling/gr The reclamation plan in the submittal specifies regarding, topsoil
ading (4.14}, yeS distribution, and seeding (with aUSFS-approved seed mix).
reve etation 4.15)
Drillhoie sealing
(4.07) and DMG A mechanical packer will be placed at the lowest possible point in the/each
Guideline for yes hole, then the hole will be filled from bottom to top with cement grout
methane drainage placed with a tremmie tube.
wel Is
Bond amount (3.02.2) yes DMG's cost estimate is attached.