HYDRO24832

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 7/17/1995
• Doc Name: 2nd Qtr 1995 Inspections
• From: SENECA COAL CO
• 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: Michael Altavilla DATE: 06/28/95
NPDES I.D. NO.: CO-0000221 D.P. 008
FACILITY C ONFIGUR ATION: Cross-Valley Pond DATE LAST INSPECTION: 03/ 27/95
SITE NAME: Pond # 008 LOCATION: SWS: NWS:. Sec. 7. TSN. R86W
MINE NAME: Seneca II Mine (Seneca Coal Co) LOCATION: 7.1 mi. S of Hay den. CO
MINE I.D. NO.: CM LRD Permit No. C-80-005 OWNER'S REP.: Scott Williams. Gen Mar
Circle or write in anoronriate reenonse
1. Foundation preparation (removal of vegetation, stumps, topsoil: es No N/A
2. Lift thickness: 12 in. N/A
3. Compaction according to approved plan: es No N/A
4. Burning (specify extent and location): Yes No
5. Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1 N/A
6. *Seepage (specify location, color, and approximate volume)

From underdrain pipes:
Yes
No ,~
uvin
At isolated points on embankment slopes: Yes N/A
At natural hillside: Yes ~ N/A
Over widespread areas: Yes N/A
From downstream foundation area: Yes ~ N/A
"Boils" beneath stream or ponded water: Yes N/A
7. Cracks or scarps on crest: Yes ® N/A
8. Cracks or scarps on slope: Yes N/A
9. Sloughing or bulging on slope: Yes o N/A
10. *Major erosion problems: Yes o N/A
11. Surface movements in valley bottom or on hillside: Yes ~ N/A
12. +Erosion of toe: Yes N/A
13. *Water impounded against toe: Yes o N/A
14. Existing embankment freeboard: See comments 7 feet
15. Increase Decrease in water level: No chance feet
16. Cracks, bulging, or erosion on upstream face: Yes ~ N A
17. Visible sumps or sinkholes in slurry surface: Yes No
18. *Clogging
Spillway channels and pipes: Yes fl o~
Decant system: Yes o
Diversion ditches: Yes No
19. *Cracking or crushing of pipes
Spillway pipes: Yes /ll~o~
Decant system: Yes o ~j_(~
20. Trash racks clear and in place: © No N/A
•Ma jor adverse changes in these items could cause instability and should be reporte d to the
Eng ineering Manager and Mine Superintendent for further evaluation. Ad verse conditio ns noted
in these items should normally be described (extent, location, volume, etc.) in the space on
the back of this sheet.