HYDRO20395

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/5/1990
• Doc Name: 3rd Qtr 1990 Inspections
• From: PEABODY COAL CO
• To: MLRD
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

' PERIODIC INSPECTION FORM i
Water, Sediment, or Slurry Impoundments
INS PECTOR'S NAME: Dennis Jones DATE: 7/23/90
NPDES I.D, NO.: - D.P. 004
FAC ILITY CONFIGU ~ ~: Cross-Valley Pond DATE LAST INSPECTION: 5/7/90
SIT E NAME: South Section 12 Pond #004 LOCATION:SW'bSE;'~, Sec. ,-RS T~
MIN E NAME: eneca pine ea o y oa o LOCATION: mi. o ay en,
MIN E I.D. N .: ermit - - OWNER'S R on u ion, upt.
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: e No i~A;
At isolated points on em an men s opes: es ® N A
At natural hillside: Yes N~~qq N/A
Over widespread areas: Yes Lq N/A
From downstream foundation area: 5e~ No N/A
"Boils" beneath stream or ponded wa er: es N~ N/A
7. Cracks or scarps on crest: Yes NCy N/A
8. Cracks or scarps on slope: Yes (y N/A
9. Sloughing or bulging on slope: Yes ~ N/A
10. *Major erosion problems: Yes cN~c N/A
11. Surface movements in valley bottom or on hillside: Yes N~ N/A
12. *Erosion of toe: Yes 1~ N/A
13. *Water impounded against toe: Yes ~ N/A
14. Existing embankment freeboard: 4.9 feet
15. Increase Decrease in water level: ~Q feet
16. Cracks, bulging, or erosion on upstream face: Yes ~N
y N/A
17. Visible sumps or sinkholes in slurry surface: Yes _
No 1/ '
18. *Clogging
Spillway channels and pipes: Yes N/A
Decant system: Yes ~ N/A
Diversion ditches: Yes ~Jg N/A
19. *Cracking or crushing of pipes
Spillway pipes: Yes ~ N/A
Decant system: Yes ~q N/A

20.
Trash racks c]ear and in place: . ~.
't'rees
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.