HYDRO23762

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 7/21/1998
• Doc Name: SENECA II-W MINE C-82-057 QUARTERLY STOCKPOND 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: R~~ Karo
FACILITY CONFIGURATION: Stoc pond
SITE NAME: ':'-3
MINE NAME: Seneca 27-W
MINE I.D. NO.: C-82-057
DATE: 03/1 x/98
DATE LAST INSPECTION: ~/72~97
LOCATION: n7W'~aF.il Sec 22 msN a88W
LOCATION: 8 m, S o£ Hayden CO
OWNER'S REP.: Hrad Brown can Myr
1. Angle of elope: 4.3:1 upstream, 2-9:1 downstream Total = Z .2~1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yee ~ N/A
At natural hillside: Yee ~ N/A
Over widespread areas: Yes ® N/A
From downstream foundation area: Yee ~ N/A
"Boils" beneath stream or ponded water: Yes ® N/A
3. Cracks or scarps on crest: Yea ~ N/A
4. Cracks or scarps on elope: Yes ~ N/A
5. Sloughing or bulging on slope: Yea ~ N/A
6. *Major erosion problems: Yea Q~ N/A
7. Surface movements in valley bottom or on hillside: Yes ® N/A
8. *Eroeion of toe: Yee ~ N/A
9. *Water impounded against downstream toe: Yee /~ N/A
10. Existing embankment freeboard: approximately 3.7 feet
11. Increase Decrease in water level: No change feet
12. Cracks, bulging, or erosion on upstream face: Yee ,® N/A
13. Spillway erosion: Yea ,® N/A
14. *Clogging
Spillway channels: Yes ~ N/A
Diversion ditches: Yea ~ 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.