HYDRO31638

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 11/12/1993
• Doc Name: 2nd Qtr 1993 Inspections
• From: PEABODY WESTERN
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockponds or Sumps
INSPECTOR'S NAME: Tom Wainwright DATE: June 10. 1993
FACILITY CONFIGURATION: Stockoond DATE LAST INSPECTION:
SITE NAME: T-11 SITE LOCATION: NW's SE4, Sec 12,TSN,R87W
MINE NAME: Seneca II LOCATION: 7.1 mi SE of Havden, Colorado
MINE I.D. NO.: C-80-005 OWNER'S REP.: Scott Williams, Supt.
Circle or write in aooropriate response
1. Angle of slope: 3:1 upstream, 2:1 downstream Total = 5:1 N/A
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yes ENO, N/A
At natural hills ids: Yes ~No~ N/A
Over widespread areas: Yes ENO N/A
From downstream foundation area: Yes LNp- N/A
"Boils" beneath stream or ponded water: Yes mT~ N/A
3. Cracks or scarps on crest: Yes ~NO~ N/A
4. Cracks or scarps on elope: Yee cam; N/A
5. Sloughing or bulging on slope: Yes LNO~, N/A
6. *Major erosion problems: Yes ~No N/A
7. Surface movements in valley bottom or on hillside: Yes ~; N/A
8. *Erosion of toe: Yes ~No~ N/A
9. *water impounded against downstream toe: Yea ENO. N/A
10. Existing embankment freeboard: feet
11. Increase Decrease in water level: feet
12. Cracks, bulging, or erosion on upstream face: Yes t39• N/A
13. Spillway erosion: ~e s, No N/A
14. *Clogging
Spillway channels: Yes <Ng:- N/A
Diversion ditches: Yes <N~ 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.