HYDRO26487

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 4/14/1995
• Doc Name: 1st Qtr 1995 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC IN9PECTION FORM
9tockponda or Sumps
INSPECTOR'S NAME: Michael G. Altav>>>a
FACILITY CONFIGURATION: Stockoond
SITE NAME: T-4
MINE NAME: Seneca II
MINE I.D. NO.: C-80-005
DATE: 03/3
DATE LAST INSPECTION: 12/13/94
LOCATION: SWS:NES:. Sec il. TSN. R87W
LOCATION: 7.1 mi SE of Hayden. CO
OWNER'S REP.: Scott Williams. Gen Mar
Circle or write in ancrovriate reaoonsa
1. Angle of slope: 3:1 upstream, 2.5:1 downstream Total = 5.5 :1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yes ~ N/A
At natural hillside: Yes ©o N/A
Over widespread areas: Yes ©o N/A
From downstream foundation area: Yes ©o N/A
"Boils" beneath stream or ponded water: Yes o 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 ®o N/A
7. Surface movements in valley bottom or on hillside: Yes No N/A
8. *Erosion of toe: Yes ©o N/A
9. *Water impounded against downstream toe: Yes ~ N/A
10. Existing embankment freeboard: See comments feet
11. Increase Decrease in water level: feet
12. Cracks, bulging, or erosion on upstream face: Yes No N/A
13. Spillway erosion: Yes ~ N/A
14. *Clogging
Spillway channels: Yes do N/A
Diversion ditches: 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.