HYDRO25693

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/16/1997
• Doc Name: 2nd Qtr 1997 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockponds or Sumps
INSPECTOR'S NAME: Roy Karo
FACILITY CONFIGURATION: Stocknond
SITE NAME: _ T-8
MINE NAME: Seneca II
MINE I.D. NO.: C-80-005
DATE: 09/24/97
DATE LAST INSPECTION: 06/24/97
LOCATION: NE SW~ Sec 12 TSN, R67W
LOCATION: 7.1 mi _CE of Hyvden, CO
OWNER'S REP.: Brad Browp, Gen Mar
1. Angle of elope: 3:1 upstream, 3.5:1 downstream Total = 6.5:1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes: Yes ~ N/A
At natural hillside: Yee N® N/A
Over widespread areas: Yee ~ N/A
From downet ream foundation area: Yee ~ N/A
"Boils" beneath stream or ponded water: Yea ~ N/A
3. Cracks or scarps on crest: Yes ~ N/A
4. Cracks or scarps on slope: Yes ® N/A
5. Sloughing or bulging on slope: Yee ~ N/A
6. *Major erosion problems: Yes ® N/A
7. Surface movements in valley bottom or on hillside: Yee ® N/A
B. *Erosion of toe: Yes ~ N/A
9. *Water impounded against downstream toe: Yee ~ N/A
10. Existing embankment freeboard: Annroximately ~ feet
11. Increase Decrease in water level: No chance feet
12. Cracks, bulging, or erosion on upstream face: _ Yee ~ N/A
13. Spillway erosion: Yes ,,
i~NO/
~~ N/A
14. *Clogging
Spillway channels: Yee ~ N/A
Diversion ditches: Yee 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.