HYDRO21498

• Permit No: C1984062
• IBM Index Class Name: Hydrology
• Doc Date: 8/14/1986
• From: YAMPA VALLEY COAL CORP
• To: MLRD
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

~~ ~~
- - OPERATOR: fnlnrario YampA Canl Cnmr~~y
MINE: Mi ~ S3
DATE OF INSPECTION: A~gnst 99,.•~98F
ii Mine 3 detention basin (South)
POND IDENTIFICATION
i Incised detention basin
' TYPE OF POND
I
• OPERATIONAL STATUS AT TIME OF INSPECTION
Approximate Water level: 6672
Sediment level (Z total storage):
outflow (cfs): No Flow
FEATURES PROBLEM COMMENTS
EROSIONAL:
YES NO
Rills 5 Gullies on Embankment X
Inadequate Vegetation X
Outlet Channel Erosion X
Burrows _~
Other
STRUCTURAL:
YES NO
Differential Settling X
Cracks or Slides ~,
Seepage ~_
Other
APPURTENANT STRUCTURES:
YES NO
Defective Spillways ~_
Dewatering Device Clogged N!A
Faulty Gates, Baffles, Pumps N/A
Other
ADDITIONAL CONI~tENTS: Spillway elevation 6674
MAINTENANCE REQUIRED:
NOTE Inspection made in conjunction with CDILRD inspection.