HYDRO24416

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 1/14/1999
• Doc Name: 4th Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PBRIODIC INSPECTION FORM
Stockpoade or Sumps
INSPECTOR'S NAME: 84Y Rare
FACILITY CONFIGURATION: etockpond
SITE NAME: T-12
MINE NAME: Seneca I7
MINE I.D. NO.: C-BD-005
DATE: 12/15/98
DATE LAST INSPECTION: OQ,/28/98
LOCATION: NW'gcF.lt c~ i 2 TSN RS7w
LOCATION: 7.1 mi c of Hayden CO
OWNER'S REP.: Brad Brawn C-en MQ~
1. Angle of elope: 3:1 upstream, 3:1 downstream Total = 6.1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes: Yee No N/A
At natural hillside: Yee No N/A
Over widespread areas: Yes No N/A
From downstream foundation area: Yee 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 elope: Yee No N/A
5. Sloughing or bulging on elope: Yee No N/A
6. *Major erosion problems: Yee No N/A
7. Surface movements in valley bottom or on hillside: Yee No N/A
8. *Eroeion of toe: Yee No N/A
9. *water impounded against downstream toe: Yes No N/A
10. Existing embankment freeboard: Approximately -Z feet
11. Increase Decrease in water level: No change feet
12. Cracks, bulging, or erosion on upstream face: Yee No N/A
13. Spillway erosion: Yee No N/A
14. *Clogging
Spillway channels: Yes No N/A
Diversion ditches: Yee No 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.