HYDRO25714

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 4/2/2007
• Doc Name: 1st Quarter 2007 Stockpond Inspections
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockponds or Sumps
INSPECTOR'S NAME: Roy Karo
FACILITY CONFIGURATION: Stockpond
SITE NAME: T-3
MINE NAME: Seneca II-W
MINE I.D. NO.: C-82-057
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DATE: ~ f ~ ~~/
DATE LAST IN PECTION:
LOCATION: NW'.SE',, Sec 22, TSN, R68W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP.: Roy Karo, Manager
Circle or write in appropriate response
Angle of slope: 4.3:1 upstream, 2.9:1 downstream
*Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes:
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:
Total = 7.2/~1
Yes /D]o
Yes INo
Yes No
Yes No
Yes No
Yes No
Yes I No
5. Sloughing or bulging on slope: Yes No
6. *Major erosion problems: Yes No
7. Surface movements in valley bottom or on hillside: Yes No
8, *Erosion of toe: Yes No
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*Water impounded against downstream toe:
Existing embankment freeboard:
Increase Decrease in water level:
Cracks, bulging, or erosion on upstream face:
Spillway erosion:
*Clogging
Spillway channels:
Diversion ditches:
Yes LNS/
3 feet
.Z feet
Yes
Yes / i~)
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
Yes o 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.
Comments' c.IJ~S Cf~'~{'ie-~r A~~ ~ ,S OY}~ S~Ais"'i PJ/~
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