HYDRO24698

• Permit No: C1981025
• IBM Index Class Name: Hydrology
• Doc Date: 6/17/1996
• Doc Name: 2nd QUARTER 1996 POND INSPECTION REPORT
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

III IIIIIIIIIIIII II!
QUARTERLY POND INSPECTION REPORT
PAGE 1 OF 1
OPERATOR: MINREC, INC. QUARTER: SECOND QUARTER 1996
INES: NORTH THOMPSON CREEK DATE OF INSPECTION: JUNE 17, 1996
POND IDENTIFICATION P-9 REFUSE LONG POND T-1 T-2
YPE OF POND SEDIMENT SEDIEMNT TREATMENT TREATMENT TREATMENT
STATUS DURING INSPECTION:
PPROXIMATE WATER LEVEL 24" DRY FULL FULL FULL
SED ($ total storage) 0% OK N/A N/A N/A
UTFLOW (gpm) NONE NONE TO T-1 TO T-2 54.3
FEATURES PROBLEM PROBLEM PROBLEM PROBLEM PROBLEM
EROSIONAL: YES NO YES NO YES NO YES NO YES NO

Rills & Gulleys X X X X X
Inadequate Vegetation x x X X X
Outlet Channel Erosion x X X X X
Burrows x X X X x
Other X X X X X
TRUCTURAL:
Differential Settling X X X X X
Cracks or Slides X x x X X
Seepage X X x* x X
Other X X X X X
PPURTENANT STRUCTURES:
Defective Spillways X X X X X
Dewater Device Clogged X X X X x
Faulty Gates, Etc. X X X x X
Other X x X x X
DDITIONAL COMMENTS: The water leve l in P-9 was about 2 4" below its outlet
The long pond embankment seepage (o utlet end) is consid ered insignificant.
Drawing D-2-5 shows the location of the long pond & pon ds T-1, T-2 & P-9.
Drawing D-4-8 shows the location of the refus e pond.
INTENANCE REQUIRED: None
SWMP CONTROLS: The stormwater manag
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outsloppes the mine portal area and
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found to
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erosion caused by the 8/24/95 signi ficant pre cipitation evec}t,~~:~:no I, `„ ~~;
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evidence of erosion was noted.
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AME OF INSPECTOR: Jim Stover, P.E . 19230 ~•
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