HYDRO30358

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 4/23/1998
• Doc Name: 1sst 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: n nnis Ton s DATE: 03/24/98
NPDES I.D. NO.: CO-0000221 D_P. 004
FACILITY CONFIGURATION: - oes-Nall y Pond DATE LAST INSPECTION: 12/04/97
SITE NAME: south _cection 12 Pond 5004 LOCATION: cwi~~g3~ ser- 122 TSN R87w
MINE NAME: s n a TT Min (c n a oa7 -ol LOCATION: 7.1 mi. SF of Hayden,~_
MINE I.D. NO.: CMT.Rn Permit No. C-80-005 OWNER'S REP.: Brad Brown ~ Ge^ Mg~_
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Foundation preparation (removal of vegetation, stumps, topsoil: es No
Lift thickness: ~Z in
Compaction according to approved plan: es No
Burning (specify extent and location): Yes No
Angle of elope: 5:1 upstream, 2e1 downstream Total = 7:1
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment elopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Boils" beneath stream or ponded water:
Cracks or scarps on crest:
Cracks or scarps on slope:
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
*Eroeion of toe:
*Water impounded against toe:
Existing embankment freeboard: see comments
_~ Increase Decrease in water level:
Cracks, bulging, or erosion on upstream face:
Visible sumps or sinkholes in Blurry surface:
*clogging
Spillway channels and pipes:
Decant system:
Diversion ditches:
*Cracking or crushing of pipes
Spillway pipes:
Decant system:
Trash racks clear and in place:
Yes No
Yes
Yee N
Yee o
Yee o
Ye9 O
Yes o
Yea No
Yee o
Yee N
Yes ,,,N~~~
Yea
Yes o
5.3 feet
0.5 feet
Yee ®o
Yee No
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Yes ~ N/A
Yee o N A
Yes No /A
Yes (~ N/A
Yes ~ N/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 space on
the back of this sheet.