HYDRO28738

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 9/16/1991
• Doc Name: 3rd Qtr 1991 Inspections
• From: PEABODY COAL CO
• To: MLRD
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORN
Yater, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Ron Gehrke
NPDES I.D. NO.:
FACILITY CONFIGURATION: Fina Pit mooun ment
SITE NAME: PeCoCo Reservoir
MINE NAME: Seneca Mine (Pea o v oa omoanv)_
MINE I.D. NO.: CMLRD Permit No. C-82-057
DATE: 08/01/91
DATE LAST ~~S~F~TI~ 05 9 .
LOCATION:
LOCATION: mi S o Hav en. CO
OWNER'S REP.: Scott Williams, Supt.
Circle or write in appropriate response
1. Foundation preparation (removal of vegetation, stumps, topsoil7) te~ No
2. Lift thickness (inches) 12 inches
3. Compaction according to approved plan Yes No
4. Burning (specify extent and location) ~ No
5. Angle of slope (degrees) 18 -3degrees

6. *
Seepage (specify location, color, and approximate volume)
From underdrain pipes Yes
At isolated points on em an ment s opes Yes
At natural hillside Yes N
Over widespread areas Yes o
From downstream foundation area Yes
"Boils" beneath stream or ponded water Yes o
7. Cracks or scarps on crest Yes No
8. Cracks or scarps on slope Yes
9. Sloughing or bulging on slope Yes ©o
10. *Major erosion problems Yes NO
11. Surface movements in valley bottom or on hillside Yes !o
12. *Erasion of toe Yes Jg
13. *Water impounded against toe Yes
14. Existing embankment freeboard (feet) 6 feet
15. Increase Decrease in water level (feet) feet
16. Cracks, bulging, or erosion on upstream face Yes ©o
17. Visible sumps or sinkholes in slurry surface Yes No

18. *
Clogging
Spillway channels and pipes Yes ~
Decant system Yes
Diversion ditc es Yes
I9 *Cracking or crushing o pipes
Spillway pipes Yes Q
Decant system Yes
20. Trash racks clear and in place l~e No
*Ma jor adverse changes in these items could cause instability and should be repo rted to the
Eng ineering Manager and Mine Superintendent for further evaluation. Adverse con ditions note
in these items should normally be described (extent, location, volume, etc.) in the space on
the back of this sheet.