2011-07-11_HYDROLOGY - C1981041 ‎(2)‎

• Permit No: C1981041
• IBM Index Class Name: HYDROLOGY
• Doc Date: 7/11/2011
• Doc Name: 2nd 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

Operator:
Permit:
Pond Identification
Type of Pond
Status During Inspection:
Design Depth
Design Max Water Depth
Design Max Sed. Depth
Sediment Level
Water Level
Outflow
QUARTERLY POND INSPECTION
REPORT
Quarter:
Inspection Date:
Page 2/2
Snowcap Coal Company
Second 2011
C -1981 -041
29- Jun -11
9 RSRDA
10 CRDA -2
11 -CBA -2
13 -North Portal
SAE N Decl
CBA -1
Sediment
Sediment
Sediment
Sediment
E/W Sumps
Sump
Design and Actual Depth from Spillway Invert
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
Dewatering Devices Clogged
Faulty Gates, Etc.
Other
No
No
No
No
N/A
N/A
No
No
No
No
N/A
N/A
No
No
No
No
N/A
N/A
No
No
No
No
No
No
Additional Comments Sediment level in pond 11 is about 3.5 feet below the top of the
Pond 11 has adequate capacity within the 3.5 feet to contain
Maintenance Required: None 0 �'
a
s
4
Name of Inspector: Jim Stover � p� t"
sediment poles.
25 -year event.
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Colorado P. E. 19230 Date