HYDRO30358

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 4/23/1998
• Doc Name: 1sst Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION PORN
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: M; ha 1 Al av'71a DATE: _ 03/]8/98
NPDES I.D. NO.: N/A
FACILITY CONFIGURATION: 7n ;4 d Pond DATE LAST INSPECTION: ~/~/Q7
SITE NAME: T + >< Waah c t linq_pond LOCATION: NWk NE~_, .s~C,~4,_T6N, R87W
MINE NAME: c n a TT Min (c n -a oal 01 LOCATION: 7.t mi. ¢R of Hayden ,_SO
MINE I.D. NO.: CDMG Perm it No. C-80-005 OWNER'S REP.: Brad Brown Gen Mq~_
1. Foundation preparation (removal of vegetation, stumps, topsoil: es No N/A
2. Lift thickness: N/A inches
3. Compaction according to approved plan: Yes No
4. Burning (specify extent and location): Yes No
5. Angle of slope: upstream, downstream Total = T/A
6. *Seepage (specify location, color, and approximate volume) //~,r~~~
From underdrain pipes: Yes No
At isolated points on embankment slopes: Yee No
At natural hillside: Yes No
Over widespread areas: Yee ®° N/A
From downstream foundation area: Yee ~ N/A
"Boils" beneath stream or ponded water: Yes o N/A
7. Cracks or scarps on crest: Yee No
8. Cracks or scarps on slope: Yes No /A
9. Sloughing or bulging on slope: Yea No /A
10. *Major erosion problems: Yes No N/A
11. Surface movements in valley bottom or on hillside: Yes No
12. *Eroaion of toe: Yea No
13. *Water impounded against toe: Yes No
14. Existing embankment freeboard: see comments S.0 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 slurry surface: Yes No /A
18. *Clogging
Spillway channels and pipes: Yes ®o N/A
Decant system: Yea No
Diversion ditches: Yea No
19. *Cracking or crushing of pipes
Spillway pipes: Yes ~lo~ N A
Decant system: Yea o
20. Trash racks clear and in place: ~ 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.