_ENFORCEMENT - C1981017 ‎(17)‎

• Permit No: C1981017
• IBM Index Class Name: Enforcement
• Doc Name: Bid Documents ‎(IMP)‎ CV-90-052
• Violation No.: C-90-052
• Media Type: D
• Archive: No

STATE OF COLORADO
MINED LAND RECLAMATION DIVISION aF Coro
Department of Natural Resources
1313 Sherman St., Room 215 N 0
Denver,CO 80203 `* 7'*
303 866-3567 ,1876.
FAX [phone]
October 30 Goverrnornor
1991 ov
G
Fred R Banta,
Ms . Diane Delaney Division Director
Mid-Continent Resources , Inc.
P.O. Box 1298
Glenwood Springs , Colorado 81602
RE: Technical Revision No. 20, (Small Area Exemptions) , File No. C-81-017
Dear Ms . Delaney:
The Division is proposing to approve Technical Revision No. 20 based on the
reasons set forth below.
The technical revision application includes a demonstration that the disturbed
surface areas are small , a provision for sediment control measures including
berms, strawbale checks , and seeding and mulching, and a commitment to monitor
discharge, when it occurs in measurable volume, from six identified small area
exemption sites which were included in Notice of Violation C-90-052.
Small area exemption designation was not requested as a part of the
Technical Revision No. 20 application for two sites included in Notice of
Violation C-90-052. First, lumber was stored adjacent to the South Fork of
Dutch Creek at the base of Road C. The lumber has been removed. The site was
not otherwise disturbed by mining activity and no further disturbance is
proposed. Second, sediment control berms and catchment basins at the Sutey
topsoil stockpiles had breached. The basins have since been cleaned out and
the berms repaired. The berm/basin system was approved via Minor Revision
No. 17 on June 28, 1989.
Pursuant to Rule 4.05.2(3)(a) and (b) , the Division grants the requested small
area exemptions based on the applicant' s demonstration that sediment ponds are
not necessary for the drainage to meet the effluent limitations of Rule 4.05.2
and applicable state and federal water quality requirements . The disturbed
surface drainage area is small (cumulative total of less than 1 .5 acres for
the six areas and there is no mixture of surface runoff with underground mine
discharge. The operator has committed to a monitoring plan to document the
effectiveness of proposed sediment controls relative to applicable effluent
standards .
Please contact me if you have any questions .
Sincerely, ,a
Dan T. Mathews
Reclamation Specialist
DTM/eke/9070F