ENFORCE21565

• Permit No: C1982056
• IBM Index Class Name: Enforcement
• Doc Date: 9/12/2006
• Doc Name: E-mail with DRMS Spill Response Memo
• From: DRMS
• To: Twentymile Coal Company
• Violation No.: CV2006006
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman S[., Room 215
Denver, Colorado 80203 C O L O R A D O
Phone: [phone] DIVISION o E
RECLAMATION
FAX: [phone] MIN [ N G
- &-
SAFETY
September 12, 2006
Bill Owens
Mr. Jerry Nettleton cnvernor
Twentymile Coal Company Russell George
29515 Routt County Road No. 27 Executive Director
Oak Creek, CO 80467 Ronald w.lattany
Division Director
Natural Resource Trustee
Re: Response to September 12, 2006 Notification of Coal Fines Discharge
Twentymile Coal Company, The Foidel Creek Mine
CDRMS Permit No. C-1982-056
Dear Mr. Nettleton:
We are in receipt of your e-mail of September 12, 2006 reporting an unanticipated discharge of coal
fines from the Foidel Creek Mine to Foidel Creek. According to this a-mail, the discharge occurred as a
result of a broken thickener underflow discharge line that allowed coal fines to flow into Twentymile
Coal Company's Sedimentation Pond E, then out of the pond's primary spillway and into the creek.
In response to your report, we are hereby directing Twentymile Coal Company to immediately take the
following measures:
Assess and contain all potential toxicity impacts to Foidel Creek and Trout Creek. This includes
sampling Sedimentation Pond E, Foidel Creek, and Trout Creek for the presence of any potential
toxic thickener constituents, and includes immediately repairing the thickener line. Provide us
with documentation of the chemical constituency of the discharge material.
2. Notify all downstream water owners and users, from the point where the discharge entered
Foidel Creek to the confluence of Trout Creek with the Yampa River, of this event.
3. Continue sampling Sedimentation Pond E and Foidel Creek to verify compliance with CPDS
effluent limitations and WQCC receiving stream standards.
4. Notify the Colorado Division of Wildlife of this event. Implement directions from CDOW
necessary to address any potential impacts to aquatic life in Foidel Creek and Trout Creek.
5. Re-establish all DRMS-approved sediment control systems.
Once these immediate impact abatement measures are achieved, please submit plans for abatement of
any potential long-term impacts that may be necessary.
Office of Office of
Mined Land Reclamation AQive and Inactive Mines