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 -1
MINE NAME: Seneca II -W
MINE I.D. NO.: C -82 -057
Comments:
PERIODIC INSPECTION FORM
Stockponds or Sumps
Circle or write in appropriate response
12. Cracks, bulging, or erosion on upstream face:
13. Spillway erosion:
14. *Clogging
Spillway channels:
Diversion ditches:
DATE: / 10 --ll
DATE LAST INSPECTION: - 2. 4
LOCATION: SWl /SE'/,, Sec 16, T5N, R88W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP.: Dennis Jones
1. Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1
2. *Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes: Yes
At natural hillside: Yes
Over widespread areas: Yes
From downstream foundation area: Yes
"Boils" beneath stream or ponded water: Yes
3. Cracks or scarps on crest: Yes
4. Cracks or scarps on slope: Yes
5. Sloughing or bulging on slope: Yes
6. *Major erosion problems: Yes
7. Surface movements in valley bottom or on hillside: Yes
8. *Erosion of toe: Yes
9. *Water impounded against downstream toe: Yes
10. Existing embankment freeboard: Sea- 64za IN) LA
11. Increase Decrease in water level:
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
feet
feet
No
No
Yes No N/A
Yes No 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.
� �-e 'a s� lo SP:
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A