2014-03-31_HYDROLOGY - C1981025 ‎(2)‎

• Permit No: C1981025
• IBM Index Class Name: Hydrology
• Doc Date: 3/31/2014
• Doc Name: 1st Quarter 2014 Quarterly Pond Inspection Report
• From: J.E. Stover & Associates, Inc
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: BFB
• Email Name: SB1
• Media Type: D
• Archive: No

QUARTERLY POND INSPECTION REPORT
Operator:
Minrec, Inc. C- 1981 -025
Quarter: First 2014
Mine:
North Thompson Creek Mines
Inspection Date: 25- Mar -14
Pond Identification
Lon T -1
T -2
P -9
Type of Pond
Treatment Treatment
Treatment
Sediment
Status During Inspection:
Approximate Water Level
Full Full
Full
Full
Sediment (% total storage)
N/A N/A
N/A
10%
Outflow (gpm)
To T -1 To T -2 30 gpm To P -9
0 qpm To Refuse Pond
Features
Problem
Problem
Problem
Problem
Yes /No
Yes /No
Yes /No
Yes /No
Erosional
No
No
No
No
Rills & Gulleys
No
No
No
No
Inadequate Vegetation
No
No
No
No
Outlet Channel Erosion
No
No
No
No
Burrows
No
No
No
No
Other
Structural
Differential Settling
No No
No
No
Cracks or Slides
No No
No
No
Seepage
No No
No
No
Other
No No
No
No
Appurtenant Structures
Defective Spillways
No No
No
No
Dewatering Devices Clogged
No No
No
No
Faulty Gates, Etc.
No No
No
No
Other
No No
No
No
Additional Comments
Drawing D -2 -5 shows the location of the long pond & ponds T -1, T -2 and P -9.
Refuse Pond is no longer monitored.
Discharge from T -2 is being directed
to Pond 9
Pond 9 Emenercy spillway has be redirected to the ditch to the refuse pond.
Flow from T -2 to Pond 9, Flow 30 gpm,
pH 7.5, conductivity
1750, temp 5.1.
Maintenance Required:
None
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SWMP Controls:
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Name of Inspector: Stan Muhr
•
J. E. Stover
Colorado P. E. 19230 Date