HYDRO22350

• Permit No: C1981041
• IBM Index Class Name: Hydrology
• Doc Date: 12/4/2000
• Doc Name: QUARTERLY POND INSPECTION REPORT
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

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QUARTERLY POND INSPECTION REPORT
Operator: Powderhorn Coal Com an Quarter Fourth 2000
Permit: C-81-041 Inspection Date: 04-Dec-0O
Pond Identification 9 RSRDA 10 CRDA-2 11-CBA-2 12-Mine Dis SAE N Decl CBA-1
Type of Pond Sediment Sediment Sediment Settlin real E/W Sum s Sum
Status During Inspection: Desl nand Actual De th from S lllwa Invert
Design Depth 9.0 9.0 6.8 5.0 Na 4.4
Design Max Water Depth Na Na Na Na Na 2.B
Design Max Sed. Depth 4.7 3.1 4.4 Na Na 4.4
Sediment Level 6.8 6.1/6.3 7.5/7.8 Na Na 4.3
Water Level D Dam D PuddleslD D D
Outflow 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 No Nc No No Na No
Inadequate Vegetation No No No No No No
Outlet Channel Erosion No No No No No No
Burrows No No No No No No
Other No No No No No No
Structural
Differential Settling No No No No No No
Cracks or Slides No No No No No No
Seepage No No No No No No
Other 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 Monitoring point inaccessible d ue to standing water.
Pond 10 prima ry spillway is clear . A berm was constructed to protect It from sediment
from Coal Canyon flow. • ~ ~ C ~R E C / ~•
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Maintenance Required:
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Name of Inspector: Jim Stover ~ ..
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••~~~'Cglorado P~. ~E. 19230 Date
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