HYDRO21619

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 10/23/1998
• Doc Name: SENECA II-W MINE C-82-057 QTR STOCKPOND INSEPECTIONS
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockpo¢ds or Sumps
INSPECTOR'S NAME: R~ Raro
FACILITY CONFIGURATION: Stoc Hood
SITE NAME: T-3
MINE NAME: Seneca II-W
MINE I.D. NO.: C-B2-057
DATE: 09/30/98
DATE LAST INSPECTION: 05/12/98
LOCATION: NWlrSF.i~ Sec 22 TSN RBBW
LOCATION: 8 mi S of Hayden, cO
OWNER'S REP.: Brad Brown C-en Myr
1. Angle of slope: a.3:1 upstream, 2.9:1 downstream Total = L 2t1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yes ~ N/A
At natural hillside: Yes ~ N/A
Over widespread areas: Yea ® N/A
From downstream foundation area: Yee No N/A
"Boils" beneath stream or ponded water: Yee ~ N/A
3. Cracks or ecarpe on treat: Yee ~ N/A
4. Cracks or ecarpe on elope: Yee ® N/A
5. Sloughing or bulging on elope: Yes I~ N/A
6. "Major erosion problems: Yes ~ N/A
7. Surface movements in valley bottom or on hillside: Yea ~ N/A
8. *Erosion of toe: Yes ~ N/A
9. *Water impounded against downstream toe: Yee ~ N/A
10. Existing embankment freeboard: Anoroximately 3.7 feet
11. Increase Decrease in water level: Ho change feet
12. Cracks, bulging, or erosion on upstream face: Yee ~ N/A
13. Spillway erosion: Yee ~ N/A
14. *Clogging
Spillway channels: Yes N/A
Diversion ditches: Yee ~
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.