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 FORM
Stockponds or Sumps
INSPECTOR'S NAME: RL7,y Karo
FACILITY CONFIGURATION: Stockpond
SITE NAME: T-10
MINE NAME: Seneca II
MINE I.D. NO.: C-80-005
DATE: 09/28/98
DATE LAST INSPECTION: 05/12/98
LOCATION: NR3~cW3~~ TSN_ R87W
LOCATION: 7.7 mi SE of Hayden CO
OWNER'S REP.: Brad Brown C-en My~
1. Angle of elope: 2e1 upstream, 3:1 downstream
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes:
At natural hillside:
over widespread areas:
From downstream foundation area:
"BOile" beneath stream or ponded water:
3. Cracks or scarps on crest:
4. Cracks or scarps on elope:
5. Sloughing or bulging on elope:
6. *Major erosion problems:
7. Surface movements in valley bottom or on hillside:
B. *Erosion of toe:
9. *Water impounded against downstream to
10. Existing embankment freeboard:
11. Increase Decrease in wa er level:
12. Cracks, bulging, or erosion on upstream
13. Spillway erosion:
14. *Clogging
Spillway channels:
Diversion ditches:
Yes No N/A
Yes No N/A
Yes No N/A
Yee No N/A
Yee No N/A
Yes No N/A
Yes No N/A
Yes No N/A
Yea No N/A
Yes No N/A
Yee No N/A
Yee No N/A
feet
feet
Yea No N/A
Yee No N/A
Yee No 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 this sheet.
Total = 5:1 N/A