2007-11-30_HYDROLOGY - C1982057 ‎(2)‎

• Permit No: C1982057
• IBM Index Class Name: HYDROLOGY
• Doc Date: 11/30/2007
• Doc Name: 4th Quarter 2007 Stockpond Inspections
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• 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
DATE : `~ ~ ~/0
DATE LAST NSPECTION:
LOCATION: NW'~SE'~, Sec 22, T5N, R88W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP.: Roy Karo, Manager
Circle or carite in appropriate response
1. Angle of slope: 4.3:1 upstream, 2.9:1 downstream Total = 7.2:1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yes No N/A
At natural hillside: Yes No N/A
Yes No N/A
Over widespread areas:
From downstream foundation area: Yes No N/A
"Boils" beneath stream or ponded water: Yes No N/A
3. Cracks or scarps on crest: Yes No 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
Yes o N/A
8. *Erosion of toe:
9. *Water impounded against downstream toe: Yes o N/A
10. Existing embankment freeboard: ~ feet
11. Increase Decrease in water level: feet
12. Cracks, bulging, or erosion on upstream face: Yes o N/R
Yes No N/A
13. Spillway erosion:
14. *Clogging
Spillway channels: Yes
Y No N/A
N/A
Diversion ditches: es o
*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 • ~ ~ ~ /~~ v
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