HYDRO22881

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 10/5/2007
• Doc Name: 3rd Quarter 2007 Sedimentation Inspection Report
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry I
mpoundments
' m
~ID ~ o ~
INSPECTOR S NAME: Dennis Jones DATE: I

D / I ~7
FACILITY CONFIGURATION: Topsoil Pile Sump DATE LAST INSPECTION: G_ !~, 0 1
SITE NAME : Topsoil Pile CCC Sumo LOCATION: SW~/, NE'/.. Sec. 34, TSN. R88W
MINE NAME : Seneca II-W Mine (Seneca Coal Co ) LOCATION: 8 mi. S of Ha yden. CO
MINE I.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.: Grego Kitchen, Gen Mar
Circle or write in appropriate response
1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes
2. Lift thickness: in.
3. Compaction according to approved plan:
4. Burning (specify extent and location): No
5. Angle of slope: upstream, downstream Total =
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment slopes: Yes No N/A
At natural hillside: Yes No N/A
Over widespread areas: Yes No N/A
From downstream foundation area: Yes No N/A
"Boils" beneath stream or ponded water: Yes No N/A
7. Cracks or scarps on crest: Yes No N/A
8. Cracks or scarps on slope: Yes N N/A
9. Sloughing or bulging on slope: Yes N N/A
10. 'Major erosion problems: Yes No N/A
11. Surface movements in valley bottom or on hillside: Yes No N/A
12. *Erosion of toe: Yes No N/A
13. *Water impounded against toe: Yes N/A
14. Existing embankment freeboard: (normal = 6.0') ~ feet
15. Increase Decrease in water level: feet
16. Cracks, bulging, or erosion on upstream face: Yes Igo N/A
17. Visible sumps or sinkholes in slurry surface: NL
18. *Clogging
Spillway channels and pipes:
Decant system: N A
Ditches: Yes No N/A
19. *Cracking or crushing of pipes
Spillway pipes:
Decant system:
20. Trash racks clear and in lace:
21. Discharge rate (gpm) ~V'~
*Maj o r adverse changes in these items could cause instability and should be reported to the
Engin eering Manager and Mine Superintendent for further evaluation. Adverse conditions n oted in
these items should normally be described (extent, location, volume, etc.) in the space on the
back of this sheet.