2014-12-29_HYDROLOGY - C1981025

• Permit No: C1981025
• IBM Index Class Name: Hydrology
• Doc Date: 12/29/2014
• Doc Name: 4th Quarter 2014 Quarterly Pond Inspection Report
• From: J.E. Stover & Associates, Inc.
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: DIH
• Media Type: D
• Archive: No

QUARTERLY POND INSPECTION REPORT
Operator: Minrec, Inc. C- 1981 -025 Quarter: I Fourth
Mine: North Thompson Creek Mines Inspection Date: 1 30- Nov -14
Pond Identification
Tvoe of Pond
Status During Inspection:
Approximate Water Level
Sediment (% total storage)
Outflow (gpm)
!Features
Erosional
Rills & Gulleys
Inadequate Vegetation
Outlet Channel Erosion
Burrows
Other
Structural
Differential Settling
Cracks or Slides
Seepage
Other
Appurtenant Structures
Defective Spillways
Dewatering Devices Clogged
Faulty Gates, Etc.
Other
itional Comments
Maintenance Required
Name of Inspector: Stan Muhr
Lon
T -1
T -2
P -9
Refuse Pond
Treatment
Treatment
Treatment
Sediment
Sediment
Full
Full
Full
Full
Dry/Snow Cover
N/A
N/A
N/A
10%
0%
To T -1
To T -2
--20 gpm
<5 gpm
0
To Refuse Pond
Problem
Problem
Problem
Problem
Problem
Yes /No
Yes /No
Yes /No
Yes /No
Yes /No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Drawing D -2 -5 shows the location of the long pond & ponds T -1, T -2 and P -9.
Discharge from T -2 is being directed to Pond 9.
Pond 9 Emenercy spillway has be redirected to the ditch to the refuse pond.
Pond 9, Bottom Elev 7496. Invert of emergency spillway elev 7503.
e:•
Refuse Pond, Bottom Elev 7418. Invert of emergency spill,# o v 7425.7j'?,*., None ,# 00`�'
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J. E. Stover
Colorad'6gP41iot?230` ate
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