2011-10-11_HYDROLOGY - C1981041 ‎(4)‎

• Permit No: C1981041
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/11/2011
• Doc Name: 3rd Quarter 2011 Quarterly Pond Inspection Report
• From: J.E. Stover & Associates, Inc
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: MPB
• Email Name: SB1
• Media Type: D
• Archive: No

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QUARTERLY POND INSPECTION REPORT
Operator.
Permit:
Snowcap Coal Company
Quarter:
Inspection Date:
Third 2011
C- 1981 -041
14- Sep -11
Pond Identification
Type of Pond
9 RSRDA
10 CRDA -2
11 -CBA -2
13 -North Portal
SAE N Decl
CBA -1
Sediment
Sediment
Sediment
Sediment
EM' Sumps
Sump
Status During Inspection:
Design and Actual Depth from Spillway Invert
Design Depth
Design Max Water Depth
Design Max Sed. Depth
Sediment Level
Water Level
Outflow
9.0
9.0
8.0
6.0
n/a
4.4
n/a
n/a
n/a
n/a
n/a
n/a
4.3
5.3
n/a
2.0
n/a
4.0
6.4
5.6/6.1
3.4/3.5
5.8
n/a
3.8
Dry
Dry
Dry
Dry
Dry
Dry
0
0
0
0
0
0
Features
Problem
Problem
Problem
Problem
Problem
Problem
Yes/No
Yes /No
Yes /No
Yes /No
Yes/No
Yes /No
Erosional
Rills & Gulleys
Inadequate Vegetation
Outlet Channel Erosion
Burrows
Other
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Structural
Differential Settling
Cracks or Slides
Seepage
Other
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Appurtenant Structures
Defective Spillways
No
No
No
No
N/A
N/A
Dewatering Devices Clogged
No
No
No
No
N/A
N/A
Faulty Gates, Etc.
No
No
No
No
N/A
N/A
Other
No
No
No
No
No
No
Additional Comments Sediment level in pond 11 is about 3.5 feet below the top of the sediment
Pond 11 has adequate capacity within the 3.5 feet to contain 25 -year event.
Maintenance Required: None ® ,,, v �S
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