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: Roy Karo
FACILITY CONFIGURATION: Stoc Bond
SITE NAME: T-3
MINE NAME: Seneca iI-W
MINE I.D. NO.: C-82-057
1
2
3.
4.
5.
6.
7.
DATE: 05/12f98
DATE LAST INSPECTION: 03f13f98
LOCATION: NW'~cF.S~ ¢ec 22 TSN R88W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP.: Brad Brown can Mg;_
Angle of elope: a.3:1 upstream, 2.9:1 downstream
*Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Roils" beneath stream or ponded water:
Cracks or ecarpe on crest:
Cracks or ecarpe on elope:
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
8. *Eroeion of toe:
9. *Water impounded against downstream toe:
10. Existing embankment freeboard: A~nroximately
11. Increase Decrease in water level: No change
12. Cracks, bulging, or erosion on upstream face:
13. Spillway erosion: _
14. *Clogging
Spillway channels:
Diversion ditches:
Total = 7.2:1 N/A
Yea ~ N/A
Yee NfA
Yee No N/A
Yee No N/A
Yea ©o N/A
Yes ©o N/A
Yee ~ NfA
Yee ~ N/A
Yee No NfA
Yee o N/A
Yee N/A
Yee No N/A
Yee No N/A
Yee ®o N/A
3.7 feet
feet
Yea N/A
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.