HYDRO26863

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 7/11/2005
• Doc Name: 2nd Quarter 2005 Inspection Report
• From: Seneca Coal Company
• To: DMG
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

PBRIODIC INSPECTION FORM
Water, Sediment, or Slurry Impouadments
INSPECTOR'S NAME: Dennis Jones DATE: ($ -~
NPDES I.D, NO.: N/A G r~~
FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: ~- O" "`-'
SITE NAME; Pond #016A LOCATION: NE',( SE?b, Sec. 27, TSN, R98W
MINE NAME: Seneca II-W Mine (Seneca Coal Co) LOCATION: 8 mi. S of Hayden, CO
MINE I.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.; Gregg Kitchen, Gen Mgr
C1rC18 OI write is dpprOpriatB r98pOII8@
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Foundation preparation (removal of vegetation, stumps, topsoil: Yes
Lift thickness: in.
Compaction according to approved plan:
Burning (specify extent and location): No
Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1
*Seepage (specify location, color, and approximate volume)
From underdrain pipes: N/A
At isolated points on embankment slopes: Yes

At natural hillside:
Yes
No
o
Over widespread areas: Yes No
From downstream foundation area: es No
"Boils" beneath stream or ponded water: Yes No
Cracks or scarps on crest: Yes No
Cracks or scarps on slope: Yes No
Sloughing or bulging on slope: Yes No
*Major erosion problems: Yes No
Surface movements in valley bottom or on hillside: Yes No
*Erosion of toe: Yes No
*Water impounded against toe: Yes No
Existing embankment freeboard: (normal = 5.0') rj feet
_~ Increase Decrease in water level: ~ feet
Cracks, bulging, or erosion on upstream face: Yes ~DIo
Visible sumps or sinkholes in slurry surface: N/A
*Clogging
Spillway channels and pipes: Yes
Decant system: N/A
Diversion ditches: N/A
*Cracking or crushing of pipes
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
No N/A
Spillway pipes: Yes `g! N/A
Decant system: N/A
20. Trash racks clear and in place: Yes 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.