INSPEC28667

• Permit No: C1981023
• IBM Index Class Name: Inspection
• Doc Name: INSPECTION REPORT
• Inspection Date: 4/29/1997
• Media Type: D
• Archive: No

III. COMMENTS -COMPLIANCE
Below are comments on the inspection. The comments include discussion of observations made during
the inspection. Comments also describe any enforcement actions taken during the inspection and the
facts or evidence supporting the enforcement action.
This partial inspection of the Chimney Rock Coal Mine was conducted by Wally Erickson
from the DMG Durango office, 484 Turner Drive, Building F, Suite 101, Durango, CO
81301, phone [phone]. No activities were observed, no mine personnel were
encountered during the time of this inspection.
Permit area is divided into three areas titled, Revision 1 Area, Barren Ridge Area, and
East Pit Area, as depicted on Map 8, Drainage Control, revised 3/20/95. East Pit Area is
separated from the other two areas by Stollsteimer Creek. Access from East Pit Area to
Barren Ridge and Revision 1 Areas is provided by low water crossing. Due to high
water in Stollsteimer Creek, only East Pit Area was inspected.
Mine identification sign and safety signs were posted at mine entrance. Public access is
controlled by locked gate. Mine access road was well maintained. Perimeter markers
and safety signs were posted along permit boundary. Topsoil sign was posted on
topsoil stockpile located at north end of East Pit Area.
Hydrologic Balance - Sediment Trap A, located in the SW corner of East Pit Area and
adjacent to mine entrance, was dry. Embankment was well vegetated and appeared
stable. Spillway structures were not evident.
Sediment containment ditch 1, conveying drainage to Sediment Trap A, was not
inspected.
Sediment Pond 002, located in the SW corner of East Pit Area, was dry. Pond inlet was
lined with rock and appeared stable, no evidence of excessive erosion. Pond
embankment was well vegetated and stable. Primary spillway was 18" CMP, inlet and
outlet of CMP were clear of sediment and debris. Evidence of excessive erosion was
not located at discharge point of primary spillway CMP. Secondary spillway was open
channel, riprap lined and stable.
Sediment containment ditches 5 and 6, conveying disturbed area drainage to Sediment
Pond 002, were well maintained. Ditches appeared stable, culverts were clear of
sediment and debris.
Three groundwater monitoring wells were located along the west side of East Pit Area.
Well casings were 4" PVC or 2" PVC pipe. Well casing and cap were intact and well
maintained.
South bank of Stollsteimer Creek, along location of low water crossing, was well
protected from erosion by large irregular sandstone riprap. Riprap appeared competent
and stable, no evidence of channel bank erosion located along ripraped section. Tracks
and droppings of elk and deer were abundant along Stollsteimer Creek.