2009-06-08_HYDROLOGY - C1981008

• Permit No: C1981008
• IBM Index Class Name: HYDROLOGY
• Doc Date: 6/8/2009
• Doc Name: 2nd Quarter 2009 Sediment Pond Inspection
• 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 : ,S Date:
NPDES ID. No.:CO-0000213 Date Last Inspected: 63rn.??c?,o°?
Faci lity Configuration: Parcel Incised Pond
Site Name: Impoundment #0013 Location:47N16W SEC 36
Mine Name: New Horizon Mine Location:1 mi.NW of Nucla CO
Mine ID No.: CDMG Permit #0008-81
Owne rs Rep.: R. L. Wade Mine Manager
CIRCLE OR WRITE IN APPROPRIATE RESPONSE
1. Foundation Preparation (removal of vegetation, stumps., topsoil) Ye No N/A
2. Lift thickness (inches)
3. Compaction according to approved plan Ye No N/A
4. Burning (specify extend and location) Yes No N/A
5. Angle of slope: 3:1 upstream, 3:1 downstream
6. Seepage (specify location, color, and approx. volume)
a.) From underdrain pipes: Yes N/A
b.) At isolated points on embankment slopes: Yes TI) N/A
c) At natural hillside: Yes N/A
d) Over widespread areas Yes N/A
e) From downsteam foundation area Yes (ID N/A
f) "Boils" beneath stram or ponded water

7.
Cracks or scarps on crest Yes (ED N/A

8.
Cracks or scraps on slope Yes (1P N/A

9.
Sloughing or bulging on slope Yes (0> N/A

10.
Major erosion problems Yes N/A

11.
Surface movements in valley bottom or on hillside Yes ® N/A

12.
Erosion of toe Yes n?gq N/A

13.
Water impounded against toe Yes Q> N/A

14.
Existing embankment freeboard (feet) Yes
13 QD
5 N/A
Feet
is. Cracks, bulging, or erosion on upsteam face
Yes .
N/A
16. visible sumps or sinkholes in slurry surface Yes N/A
17. Clogging
a) Spillway channels and pipes

b) Decant system Yes
Y
? N/A

c) Diversion Ditches es i N/A

18.
Cracking or crushing of pipes Yes N/A
a) Spillway pipes Yes N/A
b) Decant system
Yes
N/A
19. Trash racks clear and in place ?
9 No No N/A
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