2010-04-05_HYDROLOGY - C1981041 ‎(2)‎

• Permit No: C1981041
• IBM Index Class Name: HYDROLOGY
• Doc Date: 4/5/2010
• Doc Name: 1st Quarter 2010 Pond Inspection Report
• From: J.E. Stover & Associates, Inc
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: MPB
• Email Name: SB1
• Media Type: D
• Archive: No

Permit:
Pond Identification
Type of Pond
Status During Inspection:
Design Depth
Design Max Water Depth
Design Max Sed. Depth
Sediment Level
Water Level
res
Rills & Gulleys
Inadequate Vegetation
Outlet Channel Erosion
Burrows
Other
Structural
Differential Settling
Cracks or Slides
Seepage
Other
Appurtenant Structures
QUARTERLY POND INSPECTION REPORT
Snowcap Coal Company Quarter:
C-1981-041 Inspection Date:
Page 2/3 11
First 2010
23-Mar-10
9 RSRDA 10 CRDA-2 11-CBA-2 13-North Portal SAE N Decl CBA-1
Sediment Sediment Sediment Sediment E/W Sums Sum
Desi n and Actual
9.0 9.0 8.0
n/a n/a n/a
4.3 5.3 n/a
6.4 5.6/6.1 3.5
D D D
0 0 0

Problem Problem _ Problem
Yes/No Yes/No Yes/No

No No No
No No No
No No No
No No No
No No No
6.0 n/a 4.4
n/a n/a n/a
2.0 n/a 4.0
5.8 n/a 3.8
Dry I D

0
0 E::T

Problem Problem Problem
Yes/No Yes/No Yes/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 No No No No
No No No No No No
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 poles.
Pond 11 has adequate capacity within the 3.5 feet to contain 25-year event.
(Maintenance Required: None
of Inspector: Jim Stover
?easr
? EGf
?? Sjdl A,
..w I 00