HYDRO28422

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 1/30/1998
• Doc Name: 4th Qtr 1997 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 Hood
SITE NAME: T-25
MINE NAME: c n ca r
MINE I.D. I4O.: C-80-005
1
2
DATE: t~j 297
DATE LAST INSPECTION: 09 ~/24~97
LOCATION: ~~'~~'~ ~ TSN R87W
LOCATION: 7.1 mi CF. of Hayden, CO
OWNER'S REP.: Rrad Rrown Gen Mq~-
Angle of slope: 3:1 upstream, a:l downstream
*Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Boils" beneath stream or ponded water:
3. Cracks or scarps on crest:
4. Cracks or scarps on slope:
5
6.
7
Sloughing or bulging on slope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
8. *Erosion of toe:
9. *Water impounded against downstream toe:
10. Existing embankment freeboard: Ann ox'ma sty
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:
Yes No N/A
Yee No N~A
Yea ~ N/A
Yes No N/A
Yea ~ N~A
Yee ~ N~A
Yea ~ N/A
Yes ~ N/A
Yes ® N/A
Yes
~ N/A
~~
Yes ~ N/A
Yee N N~A
~- feet
feet
Yes ® N/A
Yea ~ N/A
Yee ~~ NSA
Yee `may,{ NSA
*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 = 7:1 N/A
etc.) in the apace on the back of this sheet.