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 FORK
Stockponds or Sumps
INSPECTOR'S NAME: Aoy Karo
FACILITY CONFIGURATION: Stoc pond
SITE NAME: T-24
MINE NAME: S n a 77-W
MINE I.D. NO.: C-82-057
1
2
3
DATE: 05J12J98
DATE LAST INSPECTION: 03/13/98
LOCATION: SW'rNE~r See 9 TSN. R88W
LOCATION: 8 m; S of Hayden,_{`O
OWNER'S REP.: Brad Brown. GPn Mar
Angle of elope: 3.9:1 upstream, a.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 treat:
Total = 8.5:1 N/A
4. Cracks or scarps on elope:
5.
6.
7.
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
8. *Eroeion of toe:
9.
10.
11.
12.
13.
14.
*Water impounded against downstream toe:
Existing embankment freeboard: Approximately
Increase Decrease in water level: No change
Cracks, bulging, or erosion on upstream face:
Spillway erosion:
*Clogging
Spillway channels:
Diversion ditches:
Yea No NJA
Yes No NJA
Yes 0° N f A
Yee V NJA
Yes ~ NJA
Yee No NJA
Yee ~ NJA
Yee No NJA
Yee ©o NJA
Yea ® NJA
Yes ~ NJA
Yes ~ NJA
6.2 feet
feet
Yes ~ N/A
Yes ~ NJA
Yee o N/A
Yes o NJA
*Major adveree changee 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 space on the back of this sheet.