HYDRO21815

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 1/14/1999
• Doc Name: 4th Qtr 1999 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PBAIODIC INSPECTION FORM
taster, sediment, or 9lurrp Impoundments
INSPECTOR'S NAME: Minhael Altav;lla DATE: _12/.10/98
NPDES I.D. NO.: w/A
FACILITY CONFIGURATION: Incised Pand DATE LAST INSPECTION: OQ,/18/98
SITE NAME: Spill Control Pcnd No. 2 LOCATION: NW3l Ngil Sec. 34 T6N RB7w
MINE NAME: ~ neca M;ne i (Seneca Coal Col LOCATION: 7.1 mi. SE of Havden, CO
MINE I.D. NO.: CDMG Permit No_ C-BO-005 OWNER'S REP.: Brad Brown. Cen Mgr_
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Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of elope: upstream, downstream
*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 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: sea comments
increase Decrease in water level: No chance
Cracks, bulging, or erosion on upstream face:
Visible sumps 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:
es No N/A
in.
Yee No /A
Yea No A
Total = _
Yee
Yee No
o /A
N A
Yes o N/A
Yee o N/A
Yea N/A
Yea ®o N/A
Yee ~ N/A
Yes ~ N/A
Yea ®o N/A
Yea ~ N/A
Yes ~ N/A
Yea ~ N/A
Yee o N/A
6.0 feet
feet
Yes No N/A
Yes No
Yea No
Yes No
Yea ~ N/A
Yee No
Yes No
Yes No N
*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.