2008-06-13_HYDROLOGY - C1981008

• Permit No: C1981008
• IBM Index Class Name: HYDROLOGY
• Doc Date: 6/13/2008
• Doc Name: 2nd Quarter 2008 Pond Inspections
• From: Western Fuels-Colorado
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: MLT
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
WATER, SEDIMENT, OR SLURRY IMPOUNDMENTS
Inspectors Name : Galy Date • ?,Ao..XA- ?O , Sao ea
NPDES ID. No.:CO-0000213 Date Last Inspected: t "e o&
Facility Configuration:Incised Pond
Site Name: Impoundment #012 Location:47N16W Sec 36
Mine Name: New Horizon Mine Location:2 mi.NW of Nucla, CO.
Mine ID No.: CDMG Permit #0008-81
Owners Rep.: R. L. Wade, Mine Manager
CIRCLE OR WRITE IN APPROPRIATE RESPONSE
1. Foundation Preparation (removal of vegetation,.stumps., topsoil) 6P No N/A
2. Lift thickness (inches)
3. Compaction according to approved plan e No N/A
4. Burning (specify extend and location) Yes N/A
5. Angle of slope: 3:1 upstream, 3:1 downstream
6. Seepage (specify location, color, and approx. volume)
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a.) From underdrain pipes: Yes No
b.) At isolated points on embankment slopes: Yes o
c) At natural hillside: Yes
d) Over widespread areas Yes
e) From downsteam foundation area Yes o
f) "Boils" beneath stram or ponded water Yes VD.
Cracks or scarps on crest Yes No
Cracks or scraps on slope Yes No
Sloughing or bulging on slope Yes
Major erosion problems Yes o
Surface movements in valley bottom or on hillside Yes
Erosion of toe Yes
Water impounded against toe Yes o
Existing embankment freeboard (feet)

i
Cracks, bul9ng, or erosion on upsteam face Yes no
visible sumps or sinkholes in slurry surface Yes o
Clogging
a) Spillway channels and pipes Yes
b) Decant system Yes o
c) Diversion Ditches Yes 'air 1
t
/
Cracking or crushing of pipes om'
a) Spillway pipes Yes o
b) Decant system Yes o
Trash racks clear and in place es No

N/A
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Feet
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
J 1 ? ?- ?v
F:\Eng\DATA\WP\pond-banks\DAMFORM.wpd