2017-08-02_HYDROLOGY - C1981025

• Permit No: C1981025
• IBM Index Class Name: Hydrology
• Doc Date: 8/2/2017
• Doc Name: Quarterly Sediment Pond/Impoundment Report
• From: J.E. Stover & Associates, Inc
• To: DRMS
• Annual Report Year: 2017
• Report Quarter_Month: 2
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: CCW
• Email Name: JRS
• Media Type: D
• Archive: No

QUARTERLY POND INSPECTION REPORT
rator: Minrec, Inc. C-1981-025 Quarter: Second 2017
North Thompson Creek Mines Inspection Date: 15 -Jun -17
Pond Identification
Type of Pond
Status During Inspection:
,Approximate Water Level
Sediment (% total storage)
Outflow (gpm)
Features
Rills & Gulleys
Inadequate Vegetation
Outlet Channel Erosion
Burrows
Other
Long
T-1 I T-2
I P-9
Refuse Pond
Treatment
Treatment I Treatment
I Sediment
Sediment
Full
Full
Full
7503
7419
N/A
N/A
N/A
10%
0%
To T-1
To T-2
5 to 10 g m
< 5 g m
0
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
Differential Settling No No No No No
Cracks or Slides No No No No No
Seepage No No No No No
Other No No No No No
Appurtenant Structures
Defective Spillways No No No No No
Dewatering Devices Clogged No No No No No
Faulty Gates, Etc. No No No No No
Other No 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.
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.
Refuse Pond, Bottom Elev 7418. Invert of emergency spillway elev 7425.7.
Maintenance Required: As noted in DRMS' May 2017 inspection report, ditch ahce' is'rd below
pond 9. ��,�•°` Kcy
Name of Inspector: Stan Muhr a • i •
r�Stover
) to
(`OUV ay\q
1
&AWS