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: Colorado Yampa Coal Company
MINE• hiine 113
DATE OF INSPECTION: AUgUSt 29, 1985
Middle Creek detention basin (NoCth L
POND IDENTIFICATION
TYPE OF POND
Incised detention basin
t
~. OPERATIONAL STATUS AT TIME OF INSPECTION
Approximate water level: fi668
t
Sediment level (S total storage):
Outflow (cfs):
FEATURES PROBLEM COMMENTS
EROSIONAL:
YES NO
Rills b Gullies on Embankment X
Inadequate Vegetation ~_
Outlet Channel Erosion ~_
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 COACfENTS: Spillway elevation 6670.7
MAINTENANCE REQUIRED:
NOTE: Inspection made in conjunction with Ct•1LRC) inspection.

NAME OF TNCPFl:T(1R f ~ /