HYDRO25693

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/16/1997
• Doc Name: 2nd Qtr 1997 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
9tookponds or Sumps
INSPECTOR'S NAME: Roy Karo
FACILITY CONFIGURATION: Stockpond
SITE NAME: T-1
MINE NAME: Seneca rr
MINE I.D. NO.: c-80-ODS
DATE: 09/24/Q7
DATE LAST INSPECTION: OE/24/97
LOCATION: yF_k~W'~ Sec 7,_j'SN R87W
LOCATION: 7.1 mi SE of Hayden cO
OWNER'S REP.: Brad Rrown - n Mqr
1. Angle of elope: 3:1 upstream, 4:1 downstream Total = 7:1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes: Yea ~ N/A
At natural hillside: Yea No N/A
Over widespread areas: Yes ~ N/A
From downstream foundation area: Yes ~ N/A
"Boils" beneath stream or ponded water: Yee ~ N/A
3. Cracks or scarps on treat: Yes ~ N/A
4. Cracks or scarps on elope: Yes ® N/A
5. Sloughing or bulging on elope: Yes ~ N/A
6. *Major erosion problems: Yes ~ N/A
7. Surface movements in valley bottom or on hillside: Yee ~ N/A
8. *Eroeion of toe: Yes N/A
9. *Water impounded against downstream toe: Yea ~
o N/A
10. Existing embankment freeboard: A_ nnroximately _L feet
11. ~ Increase Decrease in water level: ~ feet
12. Cracks, bulging, or erosion on upstream face: Yes ® N/A
13. Spillway erosion: Yes ® N/A
14. *Clogging
Spillway channels: Yea ~ N/A
Diversion ditches: Yes 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.