HYDRO28422

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 1/30/1998
• Doc Name: 4th Qtr 1997 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORN
Stockpoade or Sumps
INSPECTOR'S NAME: Roy Karo
FACILITY CONFIGURATION: Stock_~ and
SITE NAME: T-30
MINE NAME: Seneca II
MINE I.D. NO.: c-80-005
DATE: 12/22/97
DATE LAST INSPECTION: 09/24/97
LOCATION: cW NW'q car t TSN~ R87W
LOCATION: 7.1 m~ c o Hayden, CO
OWNER'S REP.: Brad Brown Gen Mq~
1. Angle of slope: 4:1 upstream, a:1 downstream Total = g:~ N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yes No N/A
At natural hillside: Yea ~ N/A
Over widespread areas: Yea ~o N/A
From downet ream foundation area: Yea ® N/A
"Boils" beneath stream or ponded water: Yea ~o N/A
3. Cracks or scarps on crest: Yes 1~ N/A
4. Cracks or scarps on slope: Yea ~ N/A
5. Sloughing or bulging on slope: Yes ~ N/A
6. *Major erosion problems: Yes ~ N/A
7. Surface movements in valley bottom or on hillside: Yes ~ N/A
8. *Erosion of toe: Yes ® N/A
9. *Water impounded against downet ream toe: Yes ~ N/A
10. Existing embankment freeboard: App ox+ma ~y ~_ feet
11. Increase Decrease in water level: nio change feet
12. Cracks, bulging, or erosion on upstream face: Yes !~ N/A
13. Spillway erosion: Yee ~ N/A
14. *Clogging
Spillway channels: Yee N/A
Diversion ditches: Yee ~
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,
etc.) in the space on the back of this sheet.