HYDRO28084

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 12/6/1999
• Doc Name: 3rd Qtr 1999 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sadimeat, or Slurry Impoundments
INSPECTOR'S NAME: Michael Altavilla DATE: 09/22/99
NPDES I.D. NO.: N/A
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: 06/30/99
SITE NAME: Truck Waeh Supnl;l Pond LOCATION: NWT NF.k cPy r~~4 T6N R87W
MINE NAME: tenets Mine TT (ten a -Oal .01 LOCATION: 7_~ mi. SF of Hayden,-(=0
MINE I.D. NO.: eDM- P rm' Nn_ --SO-OOS OWNER'S REP.: Brad Brown Gen Mqr
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of elope: 2:1 upstream, 2:1 downstream
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Boils" beneath stream or ponded water:
*Seepage (specify location, color, and approximate volume)
Cracks or scarps on treat:
Cracks or scarps on elope:
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
*Erosion 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:
_ ee No N/A
~2 inches
Yee
Yes No N/A
No
Total = 4:7
Yes No /
Yes A
Yee o N/A
Yes N/A
Yee N/A
Yes o N/A
Yes No N/A
Yee No N/A
Yes o N/A
Yea ®o N/A
Yee ® N/A
Yes .. N/A
Yes ~
o N/A
2.5 feet
1.0 feet
Yee ~ N/A

Yee No
Yee ~ N A
Yes o
Yee ~ A
Yee ® N A
Yes No
Yee NO
*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 deecribed (extent, location, volume, etc.) in the space on
the back of this sheet.