2013-02-01_HYDROLOGY - C2009087

• Permit No: C2009087
• IBM Index Class Name: HYDROLOGY
• Doc Date: 2/1/2013
• Doc Name: 4th Quarter 2012 Sedimentation Pond Inspection
• From: Peabody Sage Creek Mining, LLC
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: JDM
• Email Name: DIH
• Media Type: D
• Archive: No

INSPECTOR'S NAME: Dennis Jones
FACILITY CONFIGURATION: Diked Pond
SITE NAME: Lower Sump
MINE NAME: Peabody Sage Creek Mine
MINE I.D. NO.: CDRMS Permit No. C- 2009 -087
1.
2.
3.
4.
5.
6.
Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of slope: upstream, downstream Total =
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas:
PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
DATE: /0 ^` Z
DATE LAST INSPECTION: `-(0 - t
LOCATION: SE %, Sec. 34, T6N, R87W
LOCATION: 7.1 mi. SE of Hayden, CO
OWNER'S REP.: Ed Brady
Circle or write in appropriate response
Yes
in.
Yes
No
N/A
Yes No
From downstream foundation area:
"Boils" beneath stream or ponded water:
7. Cracks or scarps on crest:
8. Cracks or scarps on slope:
9. Sloughing or bulging on slope:
10. *Major erosion problems:
11. Surface movements in valley bottom or on hillside:
12. *Erosion of toe:
13. *Water impounded against toe:
14. Existing embankment freeboard: £ c.-i-Qjr 1ev.=( 6.1S feirt 640,4 3.Sr.I(k 4�.1 feet
15. Increase ti Decrease in water level: f U feet
16. Cracks, bulging, or erosion on upstream face: Yes N/A
17. Visible sumps or sinkholes in slurry surface: N/A
18. *Clogging
Spillway channels and pipes: Yes ® N/A
Decant system: N/A
Diversion ditches: Yes 0 N/A
19. *Cracking or crushing of pipes
Spillway pipes: Yes No (N /A)
Decant system: N/A
20. Trash racks clear and in place: Yes No N/A
21. Discharge rate (gpm) v
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
*Major adverse changes in these items could cause instability and should be reported to the
Engineering Manager and Mine Superintendent for further evaluation. Adverse conditions noted in
these items should normally be described (extent, location, volume, etc.) in the space on the
back of this sheet.