2013-03-22_HYDROLOGY - C2010089

• Permit No: C2010089
• IBM Index Class Name: HYDROLOGY
• Doc Date: 3/22/2013
• Doc Name: 1st Quarter 2013 Sediment Pond Inspection Report
• From: Western Fuels Colorado, LLC
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: MLT
• Email Name: SB1
• Media Type: D
• Archive: No

Inspectors Name: 7 !'e-f
9.
10.
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13.
14.
15.
16.
17.
a.)
b.)
c)
d)
19. Trash racks clear and in place
PERIODIC INSPECTION FORM
WATER, SEDIMENT, OR SLURRY IMPOUNDMENTS
NPDES ID. No.: COG- 850062 Date Last Inspected: ) 0 :/V,2-01 2 -
Facility Configuration: Partial Incised Pond
Site Name: NHN Impoundment #001A Location:SEC 25, 47N 16W
Mine Name: New Horizon North Mine Location:2.4 mi.NW of Nucla,
CO. Mine ID No.: CDMG Permit: C- 2010 -089
Owners Rep.: Rick Wolney, Mine Manager
CIRCLE OR WRITE IN APPROPRIATE RESPONSE
1. Foundation Preparation (removal of vegetation, stumps., topsoil) No No N/A
2. Lift thickness (inches) (0, 7
3. Compaction according to approved plan
4. Burning (specify extend and location)
5. Angle of slope: 3:1 upstream, 3:1 downstream
6. Seepage (specify location, color, and approx. volume)
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas
e) From downsteam foundation area
f) "Boils" beneath stream or ponded water
7. Cracks or scarps on crest
8. Cracks or scraps on slope
Sloughing or bulging on slope
Major erosion problems
Surface movements in valley bottom or on hillside
Erosion of toe
Water impounded against toe
Existing embankment freeboard (feet)
F : \ENG\ DATA \WORD \POND- BANKS \DAMFORM.DOCDOC
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Cracks, bulging, or erosion on upsteam face
Visible sumps or sinkholes in slurry surface
Clogging
Date: i /41 2.0
Ye No N/A
Yes No N/A
Yes Nd N/A
Yes 0 N/A
Yes � 1� / N/A
Yes (j116 N/A
Yes 6 N/A
Yes 0 N/A
Yes 0 N/A
Yes
6.2
Yes N/A
Yes &. N/A
Yes 6 N/A
Yes 0 N/A
Yes G I) N/A
I. 5 J 1 3. 9 Feet
Yes No N/A
Yes No N/A
a) Spillway channels and pipes Yes N) N/A
b) Decant system Yes / No m N/A
6v
c) Diversion Ditches Yes ) N/A
18. Cracking or crushing of pipes
a) Spillway pipes
b) Decant system
Yes (NQ) N/A
Yes
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