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

PfiRIODIC INSPECTION PORN
Stockpouds or Sumps
INSPECTOR'S NAME: BCly Raro
FACILITY CONFIGURATION: ~ o. nand
SITE NAME: T-24
MINE NAME: cPneca 7t-W
MINE I.D. NO.: C-82-057
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DATE: 03/13/98
DATE LAST INSPECTION: ~~~7/Q7
LOCATION: aWi,NFSL, cec 9 T5N R68W
LOCATION: 8 mi S of Hayden CO
OWNER'S REP.: Brad Brown -an Mq~
Angle of elope: 3.9:1 upstream, 4.6:1 downstream
*Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Boils" beneath stream or ponded water:
Cracks or scarps on crest:
Cracks or scarps on elope:
Sloughing or bulging on slope:
*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: Annrox imately
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:
Yee ~ N/A
Yes No N/A
Yee ~ N/A
Yes ~ N/A
Yes ~ N/A
Yes N® NjA
Yee ® N/A
Yee ~ N/A
Yes ~ NJA
Yee ©o N/A
Yes ~ N/A
Yee ~ NJA
6.2 feet
feet
Yee ~ N/A
Yea ~ N/A
Yee N/A
Yes 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,
Total = 8.5:1 N/A
etc.) in the apace on the back of this sheet.