2012-01-13_HYDROLOGY - C1982057 ‎(3)‎

• Permit No: C1982057
• IBM Index Class Name: HYDROLOGY
• Doc Date: 1/13/2012
• Doc Name: 4th Quarter 2011 Quarterly Stockpond Inspection
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: SLB
• Email Name: SB1
• Media Type: D
• Archive: No

INSPECTOR'S NAME: Dennis Jones
FACILITY CONFIGURATION: Stockpond
SITE NAME: T -20
MINE NAME: Seneca II -W
MINE I.D. NO.: C -82 -057
1. Angle of slope: 3.9:1 upstream, 4.6:1 downstream Total = 8.5:1
2. *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 slope:
5. Sloughing or bulging on slope:
6. *Major erosion problems:
7. Surface movements in valley bottom or on hillside:
8. *Erosion of toe:
9. *Water impounded against downstream toe:
10. Existing embankment freeboard: 5 p_,e_ b. (per
11. Increase Decrease in water level:
12. Cracks, bulging, or erosion on upstream face:
13. Spillway erosion:
14. *Clogging
Spillway channels:
Diversion ditches:
*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.
Comments:
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PERIODIC INSPECTION FORM
Stockponds or Sumps
Circle or write in appropriate response
DATE: /' H - 11 ---)
DATE LAST INSPECTION: ' °► " I I
LOCATION: NWUNE' %, Sec 15, T5N, R88W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP.: Dennis Jones, Manager
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