HYDRO22713

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 1/10/1994
• Doc Name: 4th Qtr 1993 Inspections
• From: PEABODY WESTERN
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impouadments
INSPECTOR'S NAME: Dennis Jones DATE: 12/7/93
NPDES I.D. NO.: CO-0000221 D. P. 004
FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 9/21/93
SITE NAME: South Section 12 Pond X004 LOCATION: SW's SE's, Sec. 12, TSN, R87W
MINE NAME: Seneca II Mine !Peabody Coal Co.1 LOCATION: 7.1 mi. S of Hayden, CO
MINE I.D. NO.: CMLRD Permit No. C-005-60 OWNER'S REP.: Scott Williams, Supt.
C1rCle Or Write 1D aDp rppZlBte reSpODSe
1. Foundation preparation (removal of vegetation, stumps, topsoil: •Yes ~ No N/A
2. Lift thickness: 12 in. N/A
3. COmpaCtlOn according t0 approved plan: Yes No N/A
d. Burning (specify extent and location): Yes No ,N/A
5. Angle of elope: 5.1 upstream, 2.1 downstream Total = 7.1 N/A
6. "Seepage (specify location, color, and approximate volume)
From underdrain pipes: Yea .No N/A
At isolated points on embankment slopes: Yes ~NO~ N/A
At natural hillside: Yee C.Nq- N/A
Over widespread dred9: Yes `NO_ N/A
From downstream foundation area: Yea Flo' N/A
"Boils" beneath stream or ponded water: Yea C~ N/A
7. Cracks or scarps on crest: Yes LNo N/A
8. Cracks or scarps on elope: Yes v N/A
9. Sloughing or bulging on slope: Yea x'12' N/A
10. •Major erosion problems: Yes tL•]o,' N/A
11. Surface movements in valley bottom or on hillside: Yes >~ N/A
12. "Erosion of toe: Yes wry' N/A
13. "Water impounded against toe: Yes ~ N/A
14. Existing embankment freeboard: 5.6 feet
15. Increase Decrease in water level: No chance feet
16. Cracks, bulging, or erosion on upstream face: Yes ~Ng N/A
17. Visible sumps or sinkholes in slurry surface: Yes No ~
18. "Clogging
Spillway channels and pipes: Yes cNo: N/A
Decant system: Yes LN2~ N/A
Diversion ditches: Yes LN~~ N/A
19. "Cracking or crushing of pipes
Spillway pipes: Yes .LNO N/A
Decant system: Yes ,L12- N/A
20. Trash racks clear and in place: ~Ye s; 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 conditions noted
in these items should normally be described (extent, location, volume, etc.) in the space on
the back of this sheet.