HYDRO22308

• Permit No: C1981008
• IBM Index Class Name: Hydrology
• Doc Date: 3/24/2003
• Doc Name: 1st Quarter 2003 Sediment Pond Inspection Report
• From: New Horizon Mine
• To: DMG
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
WATER, SEDIMENT, OR SLURRY IMPOUNDMENTS
Inspectors Name: ~ ,,~-,k,o~ Date: 3- 1~ - 0 3
NPDES ID. No.:CO-0000213 008 Date Last Inspected: jZ -~o-oz._
Faci lity Configuration:TOtal Encised Pond
Site Name: Impoundment #008 Location:46N15W6
Mine Name: New Horizon Mine Location:2 mi.NW of Nucla, CO.

Mine ZD No.: CMLRD Permit #0008-81
Owners Rep,: R. L. Wade, Mine Manager
CIRCLE OR WRITE IN APPROPRIATE R ESPONSE
1. Foundation Preparation (removal of vegetation, stumps., tops oil) Yes No N/A
2. Lift thickness (inches)
3. Compaction according to approved plan Ye No N/A
4. Burning (specify extend and location) Yes io N/A
5. Angle of elope: 3:1 upstream, 3:1 downstream
6. Seepage (specify location, color, and approx. volume)
a.) From underdrain pipes: Yes (~7 N/A
b.) At isolated points on embankment slopes: Yes Nvo N/A
c) At natural hillside: Ye9 ~ N/A
d) Over widespread areas Yes ~ N/A
e) Fiom downsteam foundation area Yes J~ N/A
f) "Boils" beneath stram or ponded water Yes ~ N/A
7. Cracks or scarps on crest Yes ® N/A
8. Cracks or scraps on slope Yes ~ N/A
9. Sloughing OY bulging on slope Yes (1Sg~ N/A
10. Major erosion problems Yes ~ N/A
11. Surface movements in valley bottom or on hillside Yee ® N/A
12. Erosion of toe Yee ~ N/A
13. Water impounded against toe Yea N® N(A

14.
Existing embankment freeboard (feet) t.
~]~
Feet
15. Cracks, bulging, or erosion on upsteam face Yes ~ N/A
16. Visible sumps or sinkholes in slurry surface Yea ~ N/A
17. Clogging
a) Spillway channels and pipes Yea CJ[Sa N/A
b) Decant system Yes ® NjA
C) Diversion Ditches Xes I~ N/A
19. Cracking or crushing of pipes
a) Spillway pipes Yes ~ N/A
b) Decant system Yes Vy N/A
19. Trash racks clear and in place Ye No N/A
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