2010-05-11_HYDROLOGY - C1981012

• Permit No: C1981012
• IBM Index Class Name: HYDROLOGY
• Doc Date: 5/11/2010
• Doc Name: 1st Quarter 2010 Sediment Pond Inspection Reports
• From: New Elk Coal Company
• 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
NPDES ID. No.:
Inspection Period:
Inspection Date:
None
First Quarter 2010
03/10/10
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 west 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?
Excellent Moderate ew Poor
Extensive Some None
Yes
4). Erosion of the downstream toe of the embankment? Yes
Cause of erosion can be attributed to:
No !/
No 4-1--
RDA Containment SW
5). is seepage occurring through the dam? Yes No
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: ,
C .? 1 Gt.l n ?? ? irGL
SHA Qualified Impoundme t Inspector
Date