2011-05-24_HYDROLOGY - C1981012

• Permit No: C1981012
• IBM Index Class Name: HYDROLOGY
• Doc Date: 5/24/2011
• Doc Name: 1st Quarter 2011 Sediment Pond Inspection Report
• From: New Elk Coal Company, 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.:
Inspection Period:
Inspection Date:
None
First Quarter 2011
03/10/11
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: Excellent Moderate Few Poor
2). Erosion forming Gullies: Extensive Some Few None
3). Is wave action causing erosion:
On the Upstream embankment? Yes No
4). Erosion of the downstream toe of the embankment? Yes No
Cause of erosion can be attributed to:
5). Is seepage occurring through the dam? Yes
Could this seepage cause potential instability?
No G/
SEDIMENT STORAGE CAPACITY
1). Has the design storage capacity of the reservoir been surpassed?
Yes
Explain:
OTHER OBSERVATIONS:
No C/'
Date