HYDRO29260

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 7/30/2007
• Doc Name: 2nd 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 CONFIGDRATION: Stockpond
SITE NAME: T-1
MINE NAME: Seneca II-W
MINE I.D. NO.: C-82-057
DATE: %'~~/~~
DATE LAST INSPECTION:
LOCATION: SW'aSE,, Sec 16, TSN, R88W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP_: Roy Karo
Circle or write in appropriate response
1
2
3
Angle of slope: 3:1 upstream, 3:1 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:
Total = 6:1
1
Yes o
Yes N
Yes N
Yes N
Yes N
Yes 1 No
N/A
N/A
N/A
N/A
N/A
N/A
N/A
4. Cracks or scarps on slope: Yes No N/A
5. Sloughing or bulging on slope: Yes No N/A
6. *Major erosion problems: Yes No N/A
7. Surface movements in valley bottom or on hillside: Yes No N/A
8. *Erosion of toe: Yes No N/A
9. *Water impounded against downstream toe: Yes N/A
10. Existing embankment freeboard: feet
11. Increase Decrease in water level: feet
12. Cracks, bulging, or erosion on upstream face: Yes , N/A
13. Spillway erosion: Yes ~+ N/A
14. *Clogging ~~
Spillway channels: Yes N/A
Diversion ditches: Yes ,7,(
Fv~
V 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:
~+7./