2008-03-17_HYDROLOGY - C1981008

• Permit No: C1981008
• IBM Index Class Name: HYDROLOGY
• Doc Date: 3/17/2008
• Doc Name: 1st Quarter 2008 Pond Inspections
• From: Western Fuels-Colorado
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: SB1
• Media Type: D
• Archive: No

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PERIODIC INSPECTION FORM
WATER, SEDIMENT, OR SLURRY IMPOUNDMENTS
Inspectors Name : ~,SS G~.b Y~,o~ Date : ~'~ 'S`tia,.~~ d $
NPDES ID. No.:CO-0000213 Date Last Inspected: Zc~1~~~ O ~
Facility Configuration: Total Incised Pond
Site Name: Impoundment #009 Location:47N16W SEC 36
Mine Name: TTew Horizon Mine LoCation:l mi.NW of Nucla, CO.
Mine ID No.: CDMG Permit #0008-81
Owners Rep.: R. L. Wade, Mine ManacLr
CIRCLE OR WRITE IN APPROPRIATE RESPONSE
1. Foundation Preparation (removal of vegetation, stumps., topsoil) Ye No N/A
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Lift thickness (inches)
Compaction according to approved plan yP No
Burning (specify extend and location) Yes
Angle of slope: 3:1 upstream, 3:1 downstream
Seepage (specify location, color, and approx. volume)
a.) From underdrain pipes: Yes No
b.) At isolated points on embankment slopes: Yes ~1
c) At natural hillside: Yes
d) Over widespread areas Yes Q
e) From downsteam foundation area Yes
f) "Boils" beneath stram or ponded water Yes ®o
Cracks or scarps on crest Yes
Cracks or scraps on slope Yes
Sloughing or bulging on slope Yes
Major erosion problems Yes
Surface movements in valley bottom or on hillside Yes C,~
Erosion of toe Yes
water impounded against toe Yes
Existing embankment freeboard (feet)
Cracks, bulging, or erosion on upsteam face Yes ®o
Visible sumps or sinkholes in slurry surface Yes ®°
Clogging
a) Spillway channels and pipes Yes
b) Decant system Yes
c) Diversion Ditches Yes
Cracking o:r crushing of pipes
a) Spillway pipes Yes
b) Decant system Yes
Trash racks clear and in
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Feet
N/A
N/A
N/A
N/A
N/A
N/A
N/A
f /A
F:\Eng\DATA\WP\pond-banks\DAMFORA