HYDRO27554

• Permit No: C1981038
• IBM Index Class Name: Hydrology
• Doc Date: 7/23/1990
• Doc Name: SEDIMENTATION PONDS QUARTERLY STRUCTURAL INSPECTION
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

' ~ COLORADO WESTMORELAND INC •
ORCHARD VALLEY MINE
Sedimentation Ponds
Ouarterl
Structura pection
POND N0,
~~ ~: _
"~-:.~ Inspection Date: ~/•~ ~//.
i ,
- ' OPERATIONAL STATUS AT TIME OF INSPECTION
~•„ -
Overflow Elevation: //~'~~ C% Clean Out Elevation: ~~i %~
Approximate Water Elevation at Time of Inspection: ,'~ ~ ~.
~, ~_
Approximate Sediment Elevation at Time of Inspection: ~~ -l-~
Outflows (C.F,S.) at Time of Inspection: /~-Li'{'•~
FEATURES:
AREA
YES NO
COMMENTS
EROSIONAL:
Rills and Gullies on Embankment
Inadequate Vegetation _~ ~'
Outlet Channel Erosion _~ '<
Burrows _J !
Other _J }
STRUCTURAL:
Differential Settling _.___~ __ ,
Cracks or Slides _~ _`
Seepage ~ X
Other _~ ~
APPURTENANT STRUCTURES:
Defective Spillways _J
.-
_,
Dewatering Device Clogged
~
_
• Faulty Gates, Baffles, Pumps _J ,~~
Other _~ ~
ADDITIONAL COMrENTS:
MAINTENANCE REOU RED:
~~ / - .
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