2008-09-11_HYDROLOGY - C1981008

• Permit No: C1981008
• IBM Index Class Name: HYDROLOGY
• Doc Date: 9/11/2008
• Doc Name: 3rd Quarter 2008 Pond Inspection Report
• 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 Date: Oct S, ON 0%
NPDES ID. No.:CO-0000213 Date Last Inspected: p 08
Facility Configuration: Total Incised Pond
Site Name: Impoundment #009 Location:47N16W SEC 36
Mine Name: New Horizon Mine Location:l mi.NW of Nucla CO.
Mine ID No.: CDMG Permit #0008-81
Owners Rep.: R. L. Wade Mine Manager
CIRCLE OR WRITE IN APPROPRIATE RESPONSE
1. Foundation Preparation (removal of vegetation, stumps., topsoil) Z No N/A
2. Lift thickness (inches)
3. Compaction according to approved plan

4.
Burning (specify extend and location)
Yes No N/A
N/A
S. Angle of slope: 3:1 upstream, 3:1 downstream ?S+
6. Seepage (specify location, color, and approx. volume)
a.) From underdrain pipes: Yes ® N/A
b.) At isolated points on embankment slopes: Yes Q N/A
c) At natural hillside:

d) Over widespread areas Yes
Yes ®
QD N/A
N/A
e) From downsteam foundation area

f) "Boils" beneath stram or ponded water Yes N/A

7.
Cracks or scarps on crest Yes
Yes
1 N/A
N/A
8. Cracks or scraps on slope Yes N? N/A
9. Sloughing or bulging on slope Yes ® N/A
10. Major erosion problems

11.

Surface movements in valley bottom or on hillside Yes

Yes

®
N/A

N/A
12. Erosion of toe

13.
Water impounded against toe Yes Q N/A

14.
Existing embankment freeboard (feet) Yes ?+ N/A

is.
Cracks, bulging, or erosion on upsteam face
Yes Feet
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 Yes N/A
c) Diversion Ditches ?

18.
Cracking or crushing of pipes Yes N/A
a) Spillway pipes Yes N/A
b) Decant system Yes ® N/A
19. Trash racks cleat and in place
Ye No N/A
p ?5 ?r
p0 REG/s
0???,?W iS G'G
pp;
F:\Eng\DATA\WP\pond-banks\DAMFORM.wpd v i