2008-11-20_HYDROLOGY - C1981012

• Permit No: C1981012
• IBM Index Class Name: HYDROLOGY
• Doc Date: 11/20/2008
• Doc Name: 3rd Quarter 2008 Quarterly Sediment Pond
• From: Peak Project Management, LLC
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: KAG
• Media Type: D
• Archive: No

QUARTERLY SEDIMENTATION POND INSPECTION REPORT
CDMR Rule 4.05.9(17)
Mine: New Elk Pond 6
NPDES ID. No.: None
Inspection Period: Third Quarter 2008
Inspection Date: 09/26108
General Description or Reference to Site Plan:
Pond 6 is a non-discharging facility designed to contain plant processing water. The plant has
been idle since 1996 and the pond is now used to dewater other ponds prior to clean-out.
EMBANKMENT
1). Adequacy of the vegetative cover.
2). Erosion forming Gullies:
3). Is wave action causing erosion:
On the Upstream embankment?
Excellent Moderat Few Poor
Extensive Some ew None
Yes No 4-'
4). Erosion of the downstream toe of the embankment? Yes No 4---
Cause of erosion can be attributed to:
5). Is seepage occurring through the dam? Yes No r/
Could this seepage cause potential instability?
SEDIMENT STORAGE CAPACITY
1). Has the design storage capacity of the reservoir been surpassed?
Yes No
Explain:
OTHER OBSERVATIONS:
_10 MSHA Qualified Impoundment In pector
! Z
Date
W