HYDRO26863

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 7/11/2005
• Doc Name: 2nd Quarter 2005 Inspection Report
• From: Seneca Coal Company
• To: DMG
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry impoundmeate
INSPECTOR'S NAME: Dennis Jones
NPDES I.D. NO.: CO-0000221 D.P. 016
FACILITY CONFIGURATION: Cross-Valley Pond
SITE NAME: Pond #016
MINE NAME: Seneca II-W Mine (Seneca Coal Co)
MINE I.D. NO.: CMLRD Permit No. C-62-057
DATE: G' IS'OS
DATE LAST INSPECTION: J ' ` ~S
LOCATION: NEB SEA, Sec. 27, TSN, R88W
LOCATION: 8 mi. S of Hayden, CO
OWNER'S REP.: Gregg Kitchen, Gen Mgr
Circle Or Write iII 8DDLODr18te reBpOIISe
1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes
2. Lift thickness: in.
3. Compaction according to approved plan: Yes
4. Burning (specify extent and location): No
5. Angle of slope: 3:1 upstream, 3:1 downstream Total 6:1
6. *Seepage (specify location, color, and approximate volume)
From underdrain pipes: N/A
At isolated points on embankment slopes: Yes N® N/A
At natural hillside: Ye No N/A
Over widespread areas: Yes N/A
From downstream foundation area: Yes ~ N/A
"Boils" beneath stream or ponded water: Yes N/A
7. Cracks Or Scarps On Crest: Yes o N/A
8. Cracks or scarps on slope: Yes No N/A
9. Sloughing or bulging on slope: Yes No N/A
10. *Major erosion problems: Yes No N/A
11. Surface movements in valley bottom or on hillside: No N/A
12. *Erosion of toe; Yes N/A
13. *Water impounded against toe: Yes ~
o N/A
14. Existing embankment freeboard: (normal = 9--b'-) G.$ (_~ feet
15. Increase Decrease in water level: -~ ~ La,,~Q feet
16. Cracks, bulging, or erosion on upstream face: Yes No N/A
17. Visible sumps or sinkholes in slurry surface: N/A
18. *Clogging
Spillway channels and pipes: Yes No N/A
Decant system: N/A
Diversion ditches: N/A
19. *Cracking or crushing of pipes
Spillway pipes: Yes No N/A
Decant system: N/A
20. Trash racks clear and in place: 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 spate on the
back of this sheet.