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 Inspection
~'-~
POND N0. /
~.~~..~h, ~~ _- ~. .;
J s-~-~ ,_~~~ Inspection Date: /;'i~:' ~~
j..
/%~ RATIONAL STATUS AT TIME OF INSPECTION / /_
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Overflow Elevation: /G•C/, T,~ Clean Out Elevation: ~~•~.
Approximate Water Elevation at Time of Inspection: !2 j'
Approximate Sediment Elevation at Time of Inspection: ,( J~~~
Outflows (C.F.S.) at Time of Inspection: i'~;G'if~
FEATURES:
AREA
YES NO
COMMENTS
EROSIONAL:

Rills and Gullies on Embankment _
~ i~
Inadequate Vegetation _~ >°
Outlet Channel Erosion _~ ;<
Burrows _~ ,r-
Other _~ u
STRUCTURAL:
Differential Settling _~ _;
Cracks or Slides _~ _ ~=
Seepage ,_f ?~'
_ Other _~ ~"
APPURTENANT STRUCTURES:
Defective Spillways _J
~~
_
Dewatering Device Clogged _~ :±
Faulty•Gates, Baffles, Pumps _~ '~~
Other _J ;~"
f
ADDITIOf~AI COMMENTS:
I MAINTENANCE NEOUIRED:
f
i,
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