2009-04-21_HYDROLOGY - C1980005

• Permit No: C1980005
• IBM Index Class Name: HYDROLOGY
• Doc Date: 4/21/2009
• Doc Name: 1st Quarter 2009 Sedimentation Pond Inspection
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: DTM
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Dennis Jones DATE: 3- 3_ 0 l
NPDES I.D. NO.: CO-0000221 D.P. 002
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION:
SITE NAME: Wadae Impoundment #002 LOCATION: NW1/4 NE1/, Sec. 34, T6N R87W
MINE NAME: Seneca II Mine (Seneca Coal Co) LOCATION: 7.1 mi. SE of Hayden CO
MINE I.D. NO.: CMLRD Permit No. C-80-005 OWNER'S REP.: Roy Karo, Gen Mar
Circle or write in appropriate response
1.
2.
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6.
Foundation preparation (removal of vegetation, stumps, topsoil
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of slope: upstream, downstream
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Boils" beneath stream or ponded water:
7. Cracks or scarps on crest:
8. Cracks or scarps on slope:
9. Sloughing or bulging on slope:
10. *Major erosion problems:
11. Surface movements in valley bottom or on hillside:
12. *Erosion of toe:
13. *Water impounded against toe:
14. Existing embankment freeboard:
15. Increase Decrease in water level: b&0 Ct?cr?n
16. Cracks, bulging, or erosion on upstream face:
17. Visible sumps or sinkholes in slurry surface:
18. *Clogging
Spillway channels and pipes:
Decant system:
Diversion ditches:
19. *Cracking or crushing of pipes
Spillway pipes:
Decant system:
20. Trash racks clear and in place:
21. Discharge rate (gpm)
*Major adverse changes in these items could cause instability and
Engineering Manager and Mine Superintendent for further evaluation.
these items should normally be described (extent, location, volume,
back of this sheet.

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feet
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136
should be reported to the
Adverse conditions noted in
etc.) in the space on the
(:D ? L- c) cA- I^- cQ .