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 FORM
Stockpoads or Sumps
INSPECTOR'S NAME: Rw Raro
FACILITY CONFIGURATION: c o Hood
SITE NAME: m-2
MINE NAME: Seneca ti-W
MINE I.D. NO.: C-87-057
1.
2
3.
4.
5.
6.
7.
DATE: 03/]3/98
DATE LAST INSPECTION: ~/~2~97
LOCATION: NW$cW3i c_ 7 mcN R88w
LOCATION: 8 mi 5 of Hayden~CO
OWNER'S REP.: Brad Brown Gen Mg~_
Angle of elope: 3.3:1 upstream, 2.3:1 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:
Cracks or scarps on crest:
cracks or scarps on slope:
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: Aznnroximately
11. Increase Decrease in water level: No change
12. Cracks, bulging, or erosion on upstream face:
13
14
Spillway erosion: _
*Clogging
Spillway channels:
Diversion ditches:
Yea
Yea
Yea
Yea
Yes
Yes
Yes
Yee
Yes
Yee
Yes 1~
Yee Io
6.9 feet
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
NJA
N/A
N/A
N/A
feet
Yes ® N/A
Yes ~ N/A
Yee N/A
~
Yes o 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 = 5.6:1
etc.) in the apace on the back of this sheet.