2012-12-31_HYDROLOGY - C1981025

• Permit No: C1981025
• IBM Index Class Name: HYDROLOGY
• Doc Date: 12/31/2012
• Doc Name: 4th Quarter 2012 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
Operator:
Mine:
Pond Identification
Type of Pond
Status During Inspection:
Approximate Water Level
Sediment (% total storage)
Outflow (gpm)
POND INSPECTION
REPORT
Quarter:
Inspection Date:
Minrec, Inc. C -1981 -025
Fourth 2012
North Thompson Creek Mines
01- Dec -12
P -9
Long
T -1
T -2
Sediment
Treatment
Treatment
Treatment
Nearly Full
Full
Full
Full
10%
N/A
N/A
N/A
0
To T -1
To T -2
—10
Features
Problem
Problem
Problem
Problem
Yes /No
Yes /No
Yes /No
Yes /No
Erosional
Rills & Gulleys
Inadequate Vegetation
Outlet Channel Erosion
Burrows
Other
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Structural
Differential Settling
Cracks or Slides
Seepage
Other
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Appurtenant Structures
Defective Spillways
Dewatering Devices Clogged
Faulty Gates, Etc.
Other
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Additional Comments Drawing D -2 -5 shows the location of the long pond
Refuse Pond is not longer monitored.
Discharge from T -2 is being directed to Refuse Pond
Maintenance Required: None
SWMP Controls:
Name of Inspector: Stan Muhr
& ponds T -1, T -2 and P -9.
o c'' `' I r ' ''' 45
t OW/
s s:S; '
J. E. Stov
Colorado P. E. 19230 Date