HYDRO24511

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/20/1998
• Doc Name: 3rd Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Watsr, Sediment, or Slurry Impoundments
INSPECTOR'S NRME: Michael Altavi 7la DATE: 0918/98
NPDES I.D. NO.: N/A
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: 06/29/98
SITE NAME: Truck Waeh Supply Pond LOCATION: NW'~~3~ Sec. 34, T6N, R87W
MINE NAME: R n a M'n 7 (Senena Coal Col LOCATION: 7.1 m+_ c. o Hayd~n~
MINE I.D. NO.: CDMG Permit No. C-80-OOS OWNER'S REP.: Brad Brown, Gen Mqr
1. Foundation preparation (removal of vegetation, stumps, topsoil:
2. Lift thickness:
3. Compaction according to approved plan:
4. Burning (specify extent and location):
5. Angle of elope: 2e1 upstream, 2:1 downstream
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
over widespread areas:
From downstream foundation area:
"Soils" beneath et ream or ponded water:
7. Cracks or scarps on crest:
B. Cracks or scarps on elope:
9. Sloughing or bulging on elope:
10. *Major erosion problems:
11. Surface movements in valley bottom or on hillside:
12. *Eroeion of toe:
13. *Water impounded against toe:
14. Existing embankment freeboard: see comments
15. Increase ~ Decrease in water level:
16. Cracks, bulging, or erosion on upstream face:
17. Visible sumps or sinkholes in slurry surface:
18. *Clogging
Spillway channels and pipes:
Decant system:
Diversion ditches:
19. *Cracking or crushing of pipes
Spillway pipes:
Decant system:
20. Trash racks clear and in place:
es No N/A
~Z inches
No N/A
Yee No
Total = 4:1
Yee No ~-
Yee o N/A
Yes No N/A
Yes o N/A
Yes o N/A
Yes o N/A
Yes ~ N/A
Yee No N/A
Yea No N/A
Yea No N/A
Yes ~ N/A
Yee o N/A
Yee o N/A
2.7s feet
0.25 feet

Yee ~ N/A
Yes No N®
Yea ®° N A
Yee No A
Yee ~ N A
Yes ® N A
Yee No A
Yee 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.