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, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Michael Altavilla DATE: 09/22/99
NPDES I.D. NO.: CO-0000 221 D.P_ 008
FACILITY CONFIGURATION: C ross-Valley Pond DATE LAST INSPECTION: 06/30/99
SITE NAME: Pond A'008 LOCATION: SW~+ NW's. Sec_ 7 TSN. RR6W
MINE NAME: c n a r Min ~(Seneca Cnal Col LOCATION: 7.1 m;. SF of Hayden SO
MINE I.D. NO.: eMi.Rn Perm it No_ C-80-005 OWNER'S REP.: Brad Brown, Gen Mar
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Foundation preparation (removal of vegetation, stumps, topsoil: es No
Lift thickness: 1Z in
Compaction according to approved plan: Yes No
Burning (specify extent and location): Yes No
Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:t
*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:
"BOile" beneath stream or ponded water:
Cracks or scarps on crest:
Cracks or scarps on elope:
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: ~ c men =
increase Decrease in water level: No change
Cracks, bulging, or erosion on upstream face:
Visible Bumps or sinkholes in slurry 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:
Yea No
Yes
Yee
Yee
Yee o
Yee
Yee
Yes
Yea o
Yee N
Yes 10
Yes
Yee L7ry,9ry '
S_S feet
feet
Yee ®o
Yes No
N/A
N/A
N A
N/A
N/
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
Yea No
Yes No
Yes ~ N A
Yee No
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.