1993-11-18_REVISION - M1977378

• Permit No: M1977378
• IBM Index Class Name: REVISION
• Doc Date: 11/18/1993
• Doc Name: Revision Approval
• From: DMG
• To: Sunnyside Gold Corp
• Type & Sequence: TR14
• Media Type: D
• Archive: No

999
STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources co�o�
1.313 Sherman St.,Room 215 h
Denver,CO 80203
Phone.[phone] *1876
FAX [phone]
Roy Romer
// Governor
k-1 ovember 18, 1993 Michael B.Long
Division Director
r. Larry Perino
/unnyside Gold Corporation
P.O. Box 177
Silverton, CO 81433
Re: Revision Approval, Sunnyside Mine, Permit No. M-77-378,
Revision No. TR-014
Dear Mr. Perino:
On November 18, 1993 the Colorado Mined Land Reclamation Board
conditionally approved the technical revision application submitted
to the Division on March 22, 1993, addressing design details for
installation of water impounding bulkheads within the underground
workings. The terms of the revision approved by the Board are
hereby incorporated into Permit No. M-77-378.
The conditions of Board approval are noted below. Please note that
all other provisions of Permit No. M-77-378 remain in full force
and effect.
COMMITMENT #1
THE OPERATOR UNDERSTANDS THAT ANY NEW SEEPS OR ANY CHANGES IN WATER
QUALITY OR QUANTITY ISSUING FROM KNOWN SEEPS IN THE AREA OF THE
SUNNYSIDE MINE, FOLLOWING THE INSTALLATION OF BULKHEAD SEALS IN THE
UNDERGROUND WORKINGS, ARE REGARDED BY THE WATER QUALITY CONTROL
DIVISION TO BE UNPERMITTED POINT SOURCE DISCHARGES. THE DIVISION
OF MINERALS AND GEOLOGY UNDERSTANDS THAT THE OPERATOR DOES NOT
AGREE WITH THIS INTERPRETATION BY THE WATER QUALITY CONTROL
DIVISION. THE OPERATOR FURTHER UNDERSTANDS THAT ANY MEASURABLE
CHANGE IN WATER QUALITY OR QUANTITY IN THE SEEPS OR THE DRAINAGES
SURROUNDING THE MINE, i.e. CHANGES REPORTED BY THE OPERATOR IN
CONJUNCTION WITH COMPLIANCE WITH THE APPROVED HYDROLOGIC MONITORING
PLAN OR CHANGES REVEALED THRU DIVISION INSPECTIONS OF THE MINE,
WILL BE CONSIDERED BY THE DIVISION AS POSSIBLE EVIDENCE OF THE
DEVELOPMENT OF UNPERMITTED POINT SOURCE DISCHARGES RELATED TO THE
INSTALLATION OF THE BULKHEADS. THEREFORE, SIGNIFICANT CHANGES IN
WATER QUALITY OR QUANTITY IN THE SEEPS OR IN THE DRAINAGES
SURROUNDING THE MINE, FOLLOWING THE INSTALLATION OF BULKHEAD SEALS
IN THE UNDERGROUND WORKINGS, WILL BE CITED AS A POTENTIAL
COMPLIANCE PROBLEM BY THE DIVISION AND THE OPERATOR WILL BE
REQUIRED BY THE DIVISION TO CONTACT THE WATER QUALITY CONTROL
DIVISION TO DETERMINE IF A NEW DISCHARGE PERMIT FOR THE MINE OR A
MODIFICATION OF THE EXISTING DISCHARGE PERMIT FOR THE MINE IS