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

PERIODIC INSPECTION PORN
Stockponds or Sumps
INSPECTOR'S NAME: Aw Karo DATE: 09/28/98
FACILITY CONFIGURATION: Stoc pond DATE LAST INSPECTION: 0512/98
SITE NAME: T-13 LOCATION: Nw3I; )<~ Sec 12 TSN R87W
MINE NAME: c n ca ii LOCATION: 7.1 m+ cF of Hayden, cO
MINE I.D. NO.: C-80-005 OWNER'S REP.: Brad Brown. Gen Mar
1. Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1 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:
"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 elope:
*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: Approximately
11. Increase ~ Decrease in water level:
12. Cracks, bulging, or erosion on upstream face:
13. Spillway erosion: _
14. *Clogging
Spillway channels:
Diversion ditches:
Yee ~ N/A
Yea N N/A
Yee No N/A
Yee ~ N/A
Yee No N/A
Yes ~ N/A
Yee ® N/A
Yes No N/A
Yee o N/A
Yes N/A
Yea o N/A
Yes N N/A
~- feet
~_ f
e
e
t
Yee ~p
~.
~~ N/A
Yes ~
o N/A
Yes N/A
Yee No 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 thin sheet.