REV96988

• Permit No: C1980007
• IBM Index Class Name: Revision
• Doc Date: 9/22/1983
• Doc Name: TECHNICAL REVISION TO MT GUNNISON MINE C-007-80 PREP PLANT
• From: MLRD
• To: ANACONDA MINERALS CO
• Type & Sequence: HR2
• Media Type: D
• Archive: No

- Y._.
F mhard D. Lamm
Governor
• •
DEPARTMENT OF NATURAL RESOURCES
Davifl H, Getches, Executive Director
MINED LAND RECLAMATION DIVISION
DAVID C. SNEITON, Director
September 22, 1983
Ms. Paige Beville
Anaconda Minerals Company
555 Seventeenth Street
Denver, Colorado 80202
III IIIIIIIIIIIIIIII
999
RE: Technical Revision to Mt. Gunnison Mine C-OU7-80 (Prep. Plant)
Dear Ms. Beville:
I have reviewed your Septemoer 16, 1983 technical revision request to
construct a small portable preparation plant northwest of Pond F.W. #l.
Your revision was deemed complete. You should publish your proposed
public notice once in a newspaper local to the mine.
I did identify a few concerns that will need to be addressed prior to our
approval.
1. Your narrative mentions a discharge from the small preparation
plant ponds. Current rules do not allow the preparation plant wash
down system to discharge. They must be designed as a closed
system. (See F.R. 10/13/82, 45382, - EPA final Rules and F.R.
lU/22/82, 41216 - OSM Final Rules which have been adopted by the
Department of Health and MLRU.) We recognize that final designs
have not been decided upon, however, the revision should at a
minimum discuss the wash water system conceptually.
2. The revision should discuss the location and design of the access
road to be used to access the site. Designs on a road culvert at
the intersection of collection ditches should also be provided.
3. The revision should indicate the location of berms or ditches that
will be used around the perimeter of the site to route water safely
to the main access road system.
4. Please indicate the extent (if any) yrading, filling, or cuts will
be needed at the plant pad site.
423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. [phone]