HYDRO21026

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/6/1992
• Doc Name: 3rd Qtr 1992 Inspections
• From: PEABODY WESTERN
• To: MLRD
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: ~ Tom y DATE:Og/22/92
NPDES I.D. NO.: ~0-U0 D.P. 004
FACILITY CONFIGU Crass-Valley Pond DATE LAST INSPECTION: 05/27/93
SITE NAME: South Section 12 Pond #004 LOCATION:SW'bSE'/,, Sec.~N;~287A
MINE NAME: eneca ine ea o y oa o LOCATION: mi. o ay en,
MINE I.D. N .: ermit , _. _ - _- OWNER'S R .~-Williams. Supt
Circle or write in appropriate response
1. Foundation preparation (removal of vegetation, stumps, topsoil): © 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 N A
5. Angle of slope: 5:1 upstream, 2:1 downstream Total = 7:1 N/A
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes: Yes No N/
At isolated points on em an men s opes: es No N A
At natural hillside: es o N/A
Over widespread areas: Yes o N/A
From downstream foundation area: es No N/A
"Boils" beneath stream or ponded wa er: Yes ®o N/A
7. Cracks or scarps on crest: Yes ®o N/A
8. Cracks or scarps on slope: Yes Qo N/A
9. Sloughing or bulging on slope: Yes ~ N/A
10. *Major erosion problems: Yes ©o N/A
11. Surface movements in valley bottom or on hillside: Yes ©o N/A
12. *Erosion of toe: Yes ®o N/A
13. *Water impounded against toe: Yes ©o N/A
14. Existing embankment freeboard: 4.5 feet
15. Increase Decrease in water level: Same feet
16. Cracks, bulging, or erosion on upstream face: Yes F~1'o N/A
17. Visible sumps or sinkholes in slurry surface: Yes No r~
18. *Clogging
Spillway channels and pipes: Yes ® N
Decant system: Yes No /A
Diversion ditches: Yes ® A
19. *Cracking or crushing of pipes
Spillway pipes: Yes ©o N
Decant system: Yes No /A
20. Trash racks clear and in place: Yes 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 condi-
tions noted in these items should normally be described (extent, location, volume, etc.)
in the space on the back of this sheet.