2008-08-04_HYDROLOGY - C1982057

• Permit No: C1982057
• IBM Index Class Name: HYDROLOGY
• Doc Date: 8/4/2008
• Doc Name: 2nd Quarter 2008 Stockpond Inspection Reports
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: DTM
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockponds or Sumps
b /-? ? o?
INSPECTOR'S NAME: Roy Karo DATE:
FACILITY CONFIGURATION: Stockpond DATE LAST INSP CTION:
SITE NAME: T-18 LOCATION: NW4NE:4, Sec 15, T5N, R88W
MINE NAME: Seneca II-W LOCATION: 8 mi S of Hayden, CO
MINE I.D. NO.: C-82-057 OWNER'S REP.: Gregg Kitchen Gen.Mgr.
Circle or write in appropriate response
1 An le of slo e• 3.1 upstream 3:1 downstream Total = 6:1 N/A
g p .
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yes No N/A
At natural hillside: Yes No N/A
Over widespread areas: Yes No N/A
From downstream foundation area: Yes No N/A
"Boils" beneath stream or ponded water: Yes No N/A
3. Cracks or scarps on crest: Yes No N/A
4. Cracks or scarps on slope: Yes No N/A
5. Sloughing or bulging on slope: Yes No N/A
6. *Major erosion problems: Yes No N/A
7. Surface movements in valley bottom or on hillside: Yes No N/A
8. *Erosion of toe: Yes No N/A
9. *Water impounded against downstream toe: Yes No N/A
3
10. Existing embankment freeboard: feet
11. Increase Decrease in water level: feet

12. Cracks, bulging, or erosion on upstream face: Yes N/A
13. Spillway erosion: Yes N N/A
14. *Clogging
Spillway channels: Yes N/A
Diversion ditches: Yes 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.
T?%. L
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