HYDRO30386

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 3/9/2000
• Doc Name: 4th Qtr 1999 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PBRIODIC INBPBCTION FORM
Water, sediment, or Blurry Impoundments
INSPECTOR'S NAME: Michael Altavilla DATE: -12/31/99
NPDES I.D. NO.: ~i/A
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: 09/~2/ga
SITE NAME: Truck Wash Supply Pond LOCATION: NW'k NE3i c~aq T6N R97W
MINE NAME: s n _aP ar Mine II (c n a oat _01 LOCATION: 7.1 mi. cF of Hayden,SO
MINE I.D. NO.: CDMG Permit No. C-80-005 OWNER'S REP.: Brad Brown, C-en Mq~

1. Foundation preparation (removal of vegetation, stumps, topsoil: ~ No N/A
2. Lift thickness: inch es
3. Compaction according to approved plan: ~
Yee No N/A
4. Burning (specify extent and location): Yes No ®A
5. Angle of elope: 2:t upstream, 2:1 downstream Total = 4 :1
6. •Seepage (specify location, color, and approximate volume)

Prom underdrain pipes: Yee No N A
At isolated points on embankment elopes: Yes N~o N/A
At natural hillside: Yes ~
~~
~voJ N/A
Over widespread areas: Yes o N/A
From downstream foundation area: Yes o N/A
"Boils" beneath stream or ponded water: Yes o N/A
7. Cracks or scarps on treat: Yee N N/A
8. Cracks Or scarps On elope: Yes No N/A
9. Sloughing or bulging on elope: Yee No N/A
10. *Major erosion problems: Yee o N/A
11. Surface movements in valley bottom or on hillside: Yee No N/A
12. *Eroeion of toe: Yes No N/A
13. {Water impounded against toe: Yea N/A
14. Existing embankment freeboard: see enmmente ~,~ feet
15. Increase ~_ Decrease in water level: 2.o feet
16. Cracks, bulging, or erosion on upstream face: Yee ©o N/A
17. Visible sumps or sinkholes in slurry surface: Yee No
18. *Clogging
Spillway channels and pipes: Yes No N A
Decant system: Yes No /
Diversion ditches: Yes ~ N A
19. *Cracking or crushing of pipes
Spillway pipes: Yes ~ N A
Decant system: Yes No
20. Trash racks clear and in place: Yes No N
*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.