HYDRO24043

• Permit No: C1981038
• IBM Index Class Name: Hydrology
• Doc Date: 12/1/1987
• Doc Name: SEDIMENTATION PONDS QUARTERLY STRUCTURAL INSPECTION POND #1
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

COLORADO WESTMORELAND INC.
ORCHARD VALLEY MINE
Sedimentation Ponds
Qua rterl
Structura nspection
POND NO. Q ~/ 1N l~ ~
Quarter: t} t~, Inspection Date: ) 212 ~ 8 7
OPERATIONAL STATUS AT TIME OF INSPECTION
Overflow Elevation: 7 / ro R ~ Clean Out Elevation:
Approximate Water Elevation at Time of Inspection: 7 / 6 Z . ~
Approximate Sediment Elevation at Time of Inspection: //o n e
Outflows (C.F.S.) at Time of Inspection: /I~o „ e
FEATURES:
AREA
VFS NO
f.OMMFNTS
EROSIONAL:
Rills and Gullies on Embankment ~ ~

Inadequate Vegetation _
.
_J __~._
Outlet Channel Erosion J _~_
Burrows _
J ~_
Other _
_~ ~_
STRUCTURAL:
Differential Settling J ~_
Cracks or Slides _
~
J
Seepage _
_
_~ ~_
Other _~ ~_
APPURTENANT STRUCTURES:
Defective Spillways J ~_
Dewatering Oevice Clogged _
_~ X
Faulty Gates, Baffles, Pumps _~ ~_
Other _~ _~
ADDITI NAL COMM NT
NohC
MAIN EN NCE EQUIR O:
Mont'
NAME OF INSPECTOR: ~ ~~/~~ LL