HYDRO27481

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 4/27/1999
• Doc Name: SENECA II MINE C-80-005 QUARTERLY STOCKPOND INSPECTIONS
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORN
Stockpoads or Sumps
INSPECTOR'S NAME: Roy Kare
FACILITY CONFIGURATION: Stoc Pend
SITE NAME: T-13
MINE NAME: Seneca II
MINE I.D. NO.: C-80-005
DATE: 03/24/99
DATE LAST INSPECTION: 12/15/98
LOCATION: NW3~cF.5~ sec 12 TSN R87W
LOCATION: 7.1 mi SE of Hayden, CO
OWNER'S REP.: Btad Brown Gen MQr
1. Angle of elope: 3:1 upstream, 3e1 downstream Total = 6e1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes: Yee I~ N/A
At natural hillside: Yee ~ N/A
Over widespread areas: Yes 1'~ N/A
From downstream foundation area: Yes ~ N/A
"Boils" beneath stream or ponded water: Yee 1~ N/A
3. Cracks or scarps on creel: Yee ~I N/A
4. Cracks or scarps on elope: Yee ® N/A
5. Sloughing or bulging on elope: Yee ~ N/A
6. *Major erosion problems: Yee Q N/A
7. Surface movements in valley bottom or on hillside: Yes ® N/A
8. *Eroeion of toe: Yes Q N/A
9. *Water impounded against downstream toe: Yee ® N/A
10. Existing embankment freeboard: A~nreximately _~ feet
11. Increase Decrease in water level: No change feet
12. Cracks, bulging, or erosion on upstream face: Yee ~ N/A
13. Spillway erosion: Yee iQb N/A
14. *Clogging
Spillway channels: Yee ~ N/A
Diversion ditches: Yee N 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.