HYDRO24511

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/20/1998
• Doc Name: 3rd Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PBRIODIC INSPECTION FORM
Water, Sediment, or Slurry Impouadmeats
INSPECTOR'S NAME: Micha 1 Al avilla DATE: _ X9/18/98
NPDES I.D. NO.: N/A
FACILITY CONFIGURATION: _Incieed Pond DATE LAST INSPECTION: 06/29/98
SITE NAME: Truck Waeh settl;nq Pond LOCATION: NW's NElI Sec_ 34 T6N R87W
MINE NAME: Seneca ii Mine (_seneca Ceal Col LOCATION: 7.1 m;_ SE of Hayden ,~
MINE I.D. NO.: CDMC- Perm;t No_ C-80-ODS OWNER'S REP.: Brad Brown, C-en Mqr
1. Foundation preparation (removal of vegetation, stumps, topsoil: ee No N/A
2. Lift thickness: ~A inches
3. Compaction according to approved plan: Yee No
4. Burning (specify extent and location): Yee No
5. Angle of elope: upstream, downstream Total = T/A
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes: Yes No
At isolated points on embankment elopes: Yee No
At natural hillside: Yee No
Over widespread areas: Yee N/A
From downstream foundation area: Yee ~
o N/A
"Boils" beneath stream or ponded water: Yes o N/A
7. Cracks or scarps on crest: Yes No /A
8. Cracks or scarps on elope: Yes No
9. Sloughing or bulging on elope: Yes No ®A
10. *Major erosion problems: Yes No N/A
11. Surface movements in valley bottom or on hillside: Yee No
12. *Eroeion of toe: Yes No
13. *water impounded against toe: Yes No
14. Existing embankment freeboard: see comments 5_D feet
15. Increase Decrease in water level: No change feet
16. Cracks, bulging, or erosion on upstream face: Yes ~° N A
17. visible sumps or sinkholes in Blurry surface: Yes No N
18. *Clogging
Spillway channels and pipes: Yee ~ N/A
Decant system: Yes No
Diversion ditches: Yee No
19. *Cracking or crushing of pipes
Spillway pipes: Yea No N A
Decant system: ~ Yee No N A
20. Trash racks clear and in place: ee No 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.