ENFORCE21578

• Permit No: C1981041
• IBM Index Class Name: Enforcement
• Doc Date: 6/3/1997
• Doc Name: NOV C-97-001 EXTENSION BEYOND 90 DAYS 2ND EXTENSION ROADSIDE MINE C-81-041
• From: DMG
• To: MIKE LONG
• Violation No.: CV1997001
• Media Type: D
• Archive: No

III IIIIIIIIIIIIIIII
STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
131 J Sherman SL, Room 215
Denver, Colorado 80207
Phone: U03) 866-3567
FA\:1303) 832-8106
DATE: June 3, 1997
TO: Mike Long ~)
FROM: Dan Mathews ~~ ~~
RE: NOV extension b and 90th Day (2nd extension)
Roadside Mine NOV No. C-97-001 (Permit C-81-041)
I~~~
DEPARTMENT OF
NATURAL
RESOURCES
Roy Rome.
Governor
lames 5. lochhead
Executive Direcbr
Michael B. Long
Division Direuor
Enclosed is a letter received May 29, 1997, from Larry Reschke of
Powderhorn requesting an additional extended abatement for NOV C-
97-001. You previously extended the final abatement deadline from
April 23, which was the 90th day after issuance of the NOV, to May
30. Due to the time associated with scheduling an engineering firm
to perform stability analyses associated with pond construction,
the May 30 abatement deadline will not be met. The stability
analyses have now been completed, and the stability report along
with other adequacy responses was submitted to the Division on May
29.
The NOV was issued for a TSS exceedance at the minewater discharge
point. Initial abatement involved some changes in water routing
within the mine. Discharge TSS levels were reduced from 520 mg/1
on January 14, to 36 mg/1 on January 15 (TSS standard is 70 mg/1).
TSS discharge has been in compliance since that time.
Abatement Step 2 required submittal of a technical revision to
include plans for surface treatment of 004 discharge. This was
deemed necessary due to a history of TSS exceedances at the site
over the past two years. The TR application was submitted in a
timely manner, within the NOV specified timeframe. The final
abatement will involve modification of an existing sediment pond
for use as a minewater treatment pond.
I believe the operator has been diligent in pursuing abatement of
the violation, and that the request for additional time to allow
the Division to review the adequacy responses and issue a proposed
decision is reasonable. I recommend extension of the final
abatement deadline to August 28, 1997, or two weeks following final
approval of Technical Revision No. 22, if such date is sooner than
August 28. The full 90 day time frame will allow adequate time for