2010-11-09_HYDROLOGY - C1981012

• Permit No: C1981012
• IBM Index Class Name: HYDROLOGY
• Doc Date: 11/9/2010
• Doc Name: 3rd Quarter 2010 Sediment Pond 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 RDA Containment SE
NPDES ID. No.:
Inspection Period:
Inspection Date:
None
Third Quarter 2010
08/15/10
General Description or Reference to Site Plan:
This partially incised containment basin is a non-discharging facility designed to contain run-off
from the area east of the RDA belt conveyor and south of highway 12.
EMBANKMENT
1). Adequacy of the vegetative cover:
2). Erosion forming Gullies:
3). Is wave action causing erosion:
On the Upstream embankment?
Yes
No L---
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 (-.-
SEDIMENT STORAGE CAPACITY
i
1). Has the design storage capacity of the reservoir been surpassed?
Yes No
Explain:
OTHER OBSERVATIONS:
Excellent Moderate ew Poor
Extensive Some Few None
MSHA Qualified Impoundmen Inspector
;g - /5- r l o
Date I/