HYDRO23132

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 4/6/1998
• Doc Name: 1st Qtr 1998 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORK
Stockponda or Snmpe
INSPECTOR'S NAME: Rov Raro
FACILITY CONFIGURATION: stocknond
SITE NAME: T-7
MINE NAME: Seneca II
MINE I.D. NO.: c-80-005
1
2
DATE: 03/1 x(98
DATE LAST INSPECTION: 12/22,/97
LOCATION: NE3.SW3~ ~ TSN R87W
LOCATION: 7.1 m+ SF. of Hayden, CO
OWNER'S REP.: Brad Hrown [:pn Mq~
Angle of elope: 2.5:1 upstream, 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:
3. Cracks or scarps on crest:
4. Cracks or scarps on elope:
5
6
7
Sloughing or bulging on slope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
8. *Eroaion of toe:
9. *Water impounded against downstream toe:
10. Existing embankment freeboard: Annroximately
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:
Yea ~ N/A
Yea ~ N/A
Yes ~ N/A
Yes ~ N/A
Yee ® N/A
Yes ~ N/A
Yee ~ N/A
Yee ~ N/A
Yes ® N/A
Yes ® N/A
Yes ® N/A
Yes ~ N/A
~ feet
feet
Yee ]o N/A
Yes ® N/A
Yes N/A
~
Yes 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 = 5.5:1 N/A
etc.) in the apace on the back of this sheet.