HYDRO21829

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/23/1998
• Doc Name: 3rd Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockposds or Sumps
INSPECTOR'S NAME: Roy Karo
FACILITY CONFIGURATION: Stocknond
SITE NAME: T-4
MINE NAME: Seneca ii
MINE I.D. NO.: C-BO-005
DATE: 09/28/98
DATE LAST INSPECTION: 05/12/98
LOCATION: cW'YNF3~ c~7 TSN a87w
LOCATION: 7.t mi cF of Hayden CO
OWNER'S REP.: Rrad Brown Gen Mq~_
1. Angle of slope: 3c1 upstream, 2.5:1 downstream Total = 5.5 :7 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yee IJO N/A
At natural hillside: Yes No N/A
Over widespread areas: Yee ~ N/A
From downstream foundation area: Yee 1o N/A
"Boils" beneath stream or ponded water: Yee ~ N/A
3. Cracks or scarps on treat: Yes No N/A

4. Cracks or scarps on elope: Yee 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: Yee ~ N/A
8. *Eroeion of toe: Yes N/A
9. *Water impounded against downstream toe: Yea o N/A
10. Existing embankment freeboard: Annroximate),y _9_ feet
11. Increase ~ Decrease in water level: ~_ feet
12. Cracks, bulging, or erosion on upstream face: Yes ~ N/A
13. Spillway erosion: Yee ~ N/A
14. *CLogging
Spillway channels: Yes 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 apace on the back of this sheet.