HYDRO21829

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/23/1998
• Doc Name: 3rd Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PBRIODIC IN6PECTION PORN
Stockponds or Sumps
INSPECTOR'S NAME: Roy xaro DATE: 09 /28 /9A
FACILITY CONFIGURATION: Stoc ctnnd DATE LAST INSPECTION: 05~12f96
SITE NAME: T-16 LOCATION: s$3~NWlt Sec t2. 'r5N_ R67W
MINE NAME: Seneca I7 LOCATION: 7.t m; SR of Hayden CO
MINE I.D. NO.: C-BO-DO5 OWNER'S REP.: Brad Brown. Gen Mar
1. Angle of elope: 3c1 upstream, 3:] downstream Total = 6c] N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
3
4
5
6
7
"Boils" beneath stream or ponded water:
Cracks or scarps on treat:
Cracks or scarps on slope:
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: nonroximate],y
11. Increase ~ Decrease in water level:
12. Cracks, bulging, or erosion on upstream face:
13
14
Spillway erosion: _
*Clogging
Spillway channels:
Diversion ditches:
Yee
Yee No
Yea
Yes No
Yes
Yee N®
Yee
Yes ®o
Yes
Yee No
Yee
Yes N
8.5 feet
N/A
N/A
N~A
N~A
N~A
N~A
N~A
N~A
N~A
N~A
N~A
N~A
3.5 feet
Yes ® N/A
Yee No N~A
Yee N/A
~
Yee No N/A
*Major adveree changes in these items could cause instability and should be reported to
the Engineering Manaqer 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.