2008-10-07_REVISION - C1982056

• Permit No: C1982056
• IBM Index Class Name: REVISION
• Doc Date: 10/7/2008
• Doc Name: Adequacy Comments ‎(Memo)‎
• From: Kent Gorham
• To: Janet Binns
• Type & Sequence: MR230
• Email Name: KAG
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203 C O L O R A D O
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Phone: [phone] D I V1 S I ON OF
RECLAMATION
FAX: [phone] MINING

SAFETY
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Harris D. Sherman
Executive Director
To: Janet Binns Ronald W. Cattany

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? Division Director
From: Kent Gorham(!i
? Natural Resource Trustee
Date: 1011/2008
Re: Adequacy Comments, MR-230, Foidel Creek, #C-82-056
Janet, I have reviewed the permit text and Map 24, sheet 3 of 3 submitted for MR-
230 which proposes updates to the emergency mine water handling at the Foidel
Creek Mine. My questions or comments are as follows:
Permit text on new pages 2.05-50.4 and 50.5 discusses the Eastern Mining
District (10RT) - Dewatering Borehole. Included in the discussion are
treatment ponds and an 8-inch discharge line buried that diverts discharge to
Foidel Creek. As we discussed, these ponds and the discharge line were not
constructed. In some way, the new permit text should reflect an up-to-date
discussion of what will actually occur with regarding to mine water handling,
treatment, and discharge. I would recommend that you ask TCC to clearly
note what activities are previously approved but were not implemented on the
ground to avoid any confusion regarding water handling.
2. New permit text is detailed and descriptive but difficult to follow without a map
that clearly shows sump locations, discharge points, discharge volumes,
treatment locations, pipeline locations and flow directions in relation to the
stream systems. While I understand the necessity of including all these
features on Map 24, Surface Facilities, I think it would be very helpful going
forward to have a map like Map 16, Mine Water Balance, that show only the
key features regarding mine water handling and treatment without the
confusion and clutter of the other facilities. I think this issue is important
enough to warrant a map dedicated solely to the mine water system to
increase understanding and clarity.
• Page 1
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines