2016-03-29_HYDROLOGY - C1981010

• Permit No: C1981010
• IBM Index Class Name: Hydrology
• Doc Date: 3/29/2016
• From: Trapper Mining Inc
• To: DRMS
• Annual Report Year: 2016
• Report Quarter_Month: 1
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: TNL
• Email Name: DIH
• Media Type: D
• Archive: No

FILE: 118.7
INSPECTOR: eLS
DRAINAGE: NO NAME
1 st QUARTER 2016
TRAPPER MINING INC.
QUARTERLY SEDIMENT POND INSPECTION REPORT
SIGNATURE: Zz- 51
DATE OF INSPECTION: ! — c2c - le
POND IDENTIFICATION
No Name #2
No Name #4
No Name #5
Approximate water level:
c%
Sediment level (% total storage):
a
Outflow (cfs):
,
Sediment marker (install or replace)
Identification sign (install or replace)
EROSIONAL:
Rills and/or gullies on downstream face.
Rills and/or gullies on upstream face.
Inadequate vegetation.
✓
(/
Outlet channel erosion.
Ll
Burrows.Ll
Erosion of toe.
Water impounded against downstream toe.
L/
Other.
STRUCTURAL:
Differential settling.
i/
Cracks, slides, or scarps.
it
(/
Seepage (specify location, color, value).
Ll
Defective spillways.
Other.
APPURTENANT STRUCTURES:
Defective spillways.
Dewatering device clogged.
(,J
Cracking or crushing of pipes.
Other.
COMMENTS:
#2: use riser/siphon tube as sediment marker; siphon top = 66%, bottom = 50%.
#4: use riser/siphon tube as sediment marker; siphon top = 75%, bottom = 60%.
#5: 60% level = top of post - 4.5'.
ML