ENFORCE33648

• Permit No: C1981041
• IBM Index Class Name: Enforcement
• Doc Date: 2/13/1997
• Doc Name: NOV C-97-001 PENALTY ASSESSMENT ROADSIDE MINE PN C-81-041
• From: DMG
• To: DAVE BERRY
• Violation No.: CV1997001
• Media Type: D
• Archive: No

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STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
Deparimem n( Nahiral Resources
1313 Sherman SL, Room 215
Denver, Colorado 80203
Phone. [phone]
FAX: 130;1 83?8106
DATE: February 13, 1997
TO: Dave Berry /~
FROM: Dan Mathews
RE: NOV C-97-001 Penalty Assessment
Roadside Mine (Permit No. C-81-041)
I~~'v
I
DEPARTMENT OF m
NATURAL
RESOURCES
Rny Rome.
Wvernor
lames 5 Lochhead
FKUlire Director
Michael B Lang
Division Director
Thank you for offering your penalty assessment services. Attached
are relevant sections of the inspection report, the NOV, and the
GJ Labs TSS analysis.
There have been two previous NOV's in the past 12 months. NOV C-
96-010 Was issued May 1, 1996, for "Failure to operate and maintain
facilities to treat underground mine water discharges to meet
effluent limits in the mine's CPDS permit", and applied to
Discharge Point 004.
NOV C-96-020 was issued December 3, 1996, for improper drainage
control on Refuse Area CRDA #2.
The immediate cause of the exceedant discharge was apparently due
to overflow of a sump within the mine. The overflow water flowed
to another sump, picking up fines along the way. Water was pumped
to the surface from the second sump, without adequate detention
time. It would appear that more vigilance by the operator could
have identified the problem and shut the pump off, or taken other
appropriate measures before I happened upon the scene.
The pump was shut down and the discharge ceased shortly after I
observed the discharge. I verified compliance with Abatement Step
#1 of the NOV on an inspection of February 4, 1997. On that date,
Discharge Point 004 was discharging water which was very clear.
The operator provided results of a sample he collected on January
16 (two days after the exceedant discharge was observed), which
indicated a TSS level of 36 mg/1. The operator indicated that the
pump had again been shut down after the sample was collected on
January 16 to allow for additional settling time, and that
subsequent discharges had been quite clear.
Due date for the proposed penalty assessment is February 21.
Thanks.