2012-08-30_HYDROLOGY - C1982057

• Permit No: C1982057
• IBM Index Class Name: HYDROLOGY
• Doc Date: 8/30/2012
• Doc Name: 2nd Quarter 2012 Stockpond Inspection Report
• 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
*Major adverse changes in
the Engineering Manager
conditions noted in these
etc.) in the space on the
Comments:
PERIODIC INSPECTION FORM
Stockponds or Sumps
DATE: /* 5' lL 1.
DATE LAST INSPECTION:
Circle or write in appropriate response
these items could cause instability and should be reported to
and Mine Superintendent for further evaluation. Adverse
items should normally be described (extent, location, volume,
back of this sheet.
DAM REMOVED SPRING 2012, ROCK IN CHANNEL NOW
-3v -(2
LOCATION: SW' %SE'4, 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 N/A
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
10. Existing embankment freeboard: feet
11. Increase Decrease in water level: feet
12. Cracks, bulging, or erosion on upstream face: Yes No N/A
13. Spillway erosion: Yes No N/A
14. *Clogging
Spillway channels: Yes No N/A
Diversion ditches: Yes No N/A