HYDRO23289

• Permit No: C1981008
• IBM Index Class Name: Hydrology
• Doc Date: 1/6/2003
• Doc Name: 4th Quarter 2002 Sediment Pond Inspection Report
• From: New Horizon Mine
• To: DMG
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

PERIODIC INSPfi`CTION FORM
WATER, SEDIMENT, OR SLURRY IMPOUNDMENTS
a ~,~oyCq Date: -Z - 30 - OTC.
Inspectors Name: 1~
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NPDES ID. No.:CO-0000213 007 Date Last Inspected : q- Z• ^ ot..
Facility Configuration:Cross Vallev Pond
Site Name: Impoundment #007 Location:4 6N15W6
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Mi Name: New Horizon Mine Location:2 mi.NW of Nucla. CO.
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Mine ID 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) Y~ No N/A
2. Lift thickness (inches)
3. COIIIpaCtlOR aCCOYding to approved plan Yg No N/A
4. Burning (specify extend and location) ~ Yes ~ 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 N/A
b.) At isolated points on embankment slopes: Yes ~
o N/A
c) AC natural hillside: Yes N/A
d) Over widespread areas Yes ® N/A
e) From downateam foundation area Yes ® N/A
£) "Boils" beneath stram or ponded water Yes ® N/A
7. Cracks or scarps on Crest Yes ~ N/A
e. Cracks or scrape on elope Yes ~ N/A
9. Sloughing or bulging on slope Yea ~ N/A
10. Major~ero9ion problems Yes ® N/A
11. Surface movements in valley bottom or on hillside ~ Yes ® N/A
12. Erosion o£ toe Yee ~ N(A
13. Water impounded against toe Yes ~ ~~ N/A
la. Eziet ing embankment freeboard (feet) _,~ Feet
15. Cracks, bulging,. .or erosion on upsteam face Yee o N/A
16. Visible sumps or sinkholes in slurry surface Yes N/A
17. Clogging
a) Spillway channels and pipes Yes ~ N/A
b) Decant system ~ Yea ® NjA
c) Diversion Ditches Yes ® N/A
18. Cracking or crushing of pipes
a) Spillway pipes Yes ® N/A
~b) Decant system Ye9 ~ N/A
- N/A
19. '!'rash racks clear and in
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~Z 30 .. e~ ;