HYDRO30127

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 7/21/1998
• Doc Name: 2nd Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: M+-heel A7 av'1 a DATE: 0(y/29/98
NPDES I.D. NO.: co-0000221 n_P_ 004
FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 03/24/98
SITE NAME: South _c action 12 Pond 8`004 LOCATION: ~W1j SF~ Sec. 72 Tom} R87W
MINE NAME: Seneca II Mine (San -a -oat -ot LOCATION: 7.7 m+_ SR of Hayden,_~
MINE I.D. NO.: QMT.Rn p m+ No. -80-OOS OWNER'S REP.: Brad Rrown Cen NyY
1. Foundation preparation (removal of vegetation, stumps, topsoil: es No N/A
2. Lift thickness: 12 in. N/A
3. Compaction according to approved plan: Ye No N/A
4. Burning (specify extent and location): Yee No
5. Angle of elope: 5:1 upstream, ~ downstream Total = 7:1 N/A
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes: Yes N/A
At isolated points on embankment elopes: Yes N/A
At natural hills ids: Yes /Nd) N/A
Over widespread areas: Yea C~i`S{+' N/A
From downstream foundation area: Yes o N/A
"Boils" beneath stream or ponded water: Yes o N/A
7. Cracks or scarps on treat: Yes N N/A
B. Cracks or scarps on elope: Yee No N/A
9. Sloughing or bulging on elope: Yee o N/A
10. *Major erosion problems: Yee No N/A
11. Surface movements in valley bottom or on hillside: Yee ~ N/A
12. *Erosion of toe: Yee ~ N/A
13. *Water impounded against toe: Yee No N/A
14. Existing embankment freeboard: c o m n s 5.3 feet
15. Increa6e Decrea6e in water level: No change feet
16. Cracks, bulging, or erosion on upet ream face: Yee ® N/A
17. Visible sumps or sinkholes in Blurry surface: Yee No /A
18. *clogging
Spillway channels and pipes: Yes G~'o~ N/A
Decant system: Yes o N A
Diversion ditches: Yee No
19. *Cracking or crushing of pipes

Spillway pipes:
Yee G~
p'+o~
N/A
Decant system: Yee ~ N/A
20. Trash racks clear and in place: ee 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 apace on
the back of this sheet.