HYDRO22194

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 7/15/2002
• Doc Name: 2nd Quarter 2002 Sedimentation Pond Inspection
• 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
' ~ ~-~~~~ 0 Z
INSPECTOR S NAME: Dennis Jones DATE:
NPDES I.D . NO.: CO-0000221 D.P. 002
'7
~-~ 6' O Z
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION:
SITE NAME : Wadae Impoundment #002 LOCATION: NNP/a NE'/a, Sec. 34, T6N, R87W
MINE NAME : Seneca II Mine (Seneca Coal Co) LOCATION: 7.1 mi. SE of Havden, CO
MINE I.D. NO.: CMLRD Permit No. C- 80-005 OWNER'S REP.: Grea4 Kitchen, Gen Mar
Circle or Write in aAAropriate response
1. Foundation preparation (removal of vegetation, stumps, topsoil:
2. Lift thickness:
3. Compaction according to approved plan: NLA
4. Burning (specify extent and location):
5. Angle of slope: upstream, downstream Total =
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas: N/A
From downstream foundation area: N A

"Boils" beneath stream or ponded water: Yes No N/A
7. Cracks or scarps on crest:
8. Cracks or scarps on slope:
9. Sloughing or bulging on slope:
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:
13. *Water impounded against toe:
14. Existing embankment freeboard: N/A feet
15. Increase Decrease in water level: IAO G~n la~ feet
16. Cracks, bulging, or erosion on upstream face: NL
17. Visible sumps or sinkholes in slurry surface: N A
18. *Clogging

Spillway channels and pipes: Yes No N/A
Decant system:

Diversion ditches: Yes No N/A
19. *Cracking or crushing of pipes
Spillway pipes: NL
Decant system: N/A
20. Trash racks clear and in place: 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.