HYDRO29429

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 7/2/2003
• Doc Name: 2nd Quarter 2003 Sedimentation Pond Inspections
• From: Seneca Coal Company
• To: DMG
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments

INSPECTOR'
S NAME: Dennis Jones '2
DATE: ~7 ' aS ' ~ 3
NPDES I.D. NO.: CO-0000221 D.P. 002 ~7 ~7 G "7
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FACILITY C ONFIGURATION: Incised Pond DATE LAST INSPECTION: ~7
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SITE NAME: Wadge Impoundment #002 LOCATION: NWi/4 NEB/a, Sec. 34, T6N, R87W
MINE NAME: Seneca II Mine (Seneca Coal Co) LOCATION: 7.1 mi. SE of Hayden, CO
MINE I.D. NO.: CMLRD Permit No. C -80-005 OWNER'S REP.: Gregg Kitchen, Gen Mgr
Circle or write in appropriate response
1. Foundation preparation (removal of vegetation, stumps, topsoil: ~ N/A
2. Lift thickness: N/A
3. Compaction according to approved plan: N/A
4. Burning (specify extent and location): N/A
5. Angle of slope: upstream, downstream Total = N/A
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes: N/A
At isolated points on embankment slopes: N/A
At natural hillside: N/A
Over widespread areas: N/A
From dOWI]Stream fOllridatlOn area: N/A
"Boils" beneath stream or ponded water: Yes No N/A
7. Cracks or scarps on crest: N/A
6. Cracks or scarps on slope: N/A
9. Sloughing or bulging on slope: N/A
10. *Maj or erosion problems; YeS No N/A
11. Surface movements in valley bottom or on hillside: Yes No N/A
12. *Erosion of toe: N/A
13. *Water impounded against toe: N/A
14. Existing embankment freeboard: N/A feet
15. Increase Decrease in water level: 11.p C.1. a1.yO feet
16. Cracks, bulging, or erosion on upstream face: 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 No N/A
19. *Cracking or crushing of pipes
Spillway pipes: N/A
Decant system: N/A
20. Trash racks clear and in place: N/A
*Maj or 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.