HYDRO20302

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 12/31/1992
• Doc Name: 4th Qtr 1991 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: Dennis Jone
NPDES I.D. NO.: t - D,P. OD~1
FACILITY CONFIGU ~ Gross-Vallev Pond
SITE NAME: South Section 12 Pond X004
MINE NAME: eneca ~•tne eaoo y oa ~o
MINE I,D, N ,. ~~• ermtt - -
DATE: 12/08/92
DATE LAST INS?ECTION: 09/22/92
LOCA'iION:SW94Ei:, Sec.l ~r ,
LOCATION: i. mt. r or ay en,
OWNER'S R .EP . Scott ;J;lliams, Suot
Circle or write in appropriate response
1. Foundation preparation (removal of vegetation, stumps, topsoil): _ (Y~ 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 anKment s opes: es No N A
At natural hillside: es .JO N/A
Over widespread areas: Yes No N/A
From downstream foundation area: Yes No N/A
"Boils" beneath stream or ponded water: Yes No N/A
7. Cracks or scarps on crest:' Yes No N/A ~
8. Cracks or scarps. on slope: Yes No 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 No N/A
12. *Erosion of toe: Yes ~o N/A
13. *Water impounded against toe: Yes No N!A
14. Existing embankment freeboard: 5,7 feet
15. Increase Decrease in water level: Same feet
16. Cracks, bulging, or erosion on upstream face: Yes No N/A
17. Visible sumps or sinkholes in slurry surface: Yes No ~~
18. *Clogging
Spillway channels and pipes: Yes No N/.4
Decant system: Yes No N/A
Diversion ditches: Yes Jo ~~/A
19, *Cracking or crushing of pipes
Spillway pipes: Yes "JO N/A
Decant system: Yes No N/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 hlanager and 'line 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.