2013-10-31_HYDROLOGY - C2009087 ‎(3)‎

• Permit No: C2009087
• IBM Index Class Name: Hydrology
• Doc Date: 10/31/2013
• Doc Name: 2nd Quarter 2013 Pond Inspection ‎(Emailed)‎
• From: Scott Cowman
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: JDM
• Email Name: DIH
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments

06/10/13
INSPECTOR'S NAME: Chris Miller DATE:
NPDES I.D. NO.: CO-0048275 D.P. 004
03/05/13
FACILITY CONFIGURATION: Cross Valley Pond DATE LAST INSPECTION:
SITE NAME: South Section 12 Pond #004 LOCATION: SW¼ SE¼, Sec. 12, T5N, R87W
MINE NAME: Peabody Sage Creek Mine LOCATION: 7.1 mi. SE of Hayden, CO
MINE I.D. NO.: CMLRD Permit No. C-2009-087 OWNER'S REP.: Ed Brady

Circle or write in appropriate response

1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes

2. Lift thickness: 12 inches
3. Compaction according to approved plan: Yes
4. Burning (specify extent and location): No
5. Angle of slope: 5:1 upstream, 2:1 downstream Total = 7:1
6. *Seepage (specify location, color, and approximate volume)
N/A
From underdrain pipes: _____________________________________ Yes No
No
At isolated points on embankment slopes:___________________ Yes N/A
No
At natural hillside: _______________________________________ Yes N/A
No
Over widespread areas: _____________________________________ Yes N/A
No
From downstream foundation area: ___________________________ Yes N/A
No
"Boils" beneath stream or ponded water: ____________________ Yes N/A
No
7. Cracks or scarps on crest: _______________________________________ Yes N/A
No
8. Cracks or scarps on slope: _______________________________________ Yes N/A
No
9. Sloughing or bulging on slope: ___________________________________ Yes N/A
No
10. *Major erosion problems: _________________________________________ Yes N/A
No
11. Surface movements in valley bottom or on hillside: ______________ Yes N/A
No
12. *Erosion of toe: _________________________________________________ Yes N/A
Yes
No
13. *Water impounded against toe: ____________________________________ N/A
14. Existing embankment freeboard: Normal = 4.8 ft _______________ 4.8 feet
15. Increase Decrease in water level: ___________________ feet
No
16. Cracks, bulging, or erosion on upstream face: ___________________ Yes N/A
N/A
17. Visible sumps or sinkholes in slurry surface: Yes No
18. *Clogging
No
Yes N/
Spillway channels and pipes: _______________________________ A
N/A
Decant system: Inoperable _____________________ Yes No
No
Yes N/
Diversion ditches: _________________________________________ A
19. *Cracking or crushing of pipes
No
Yes N/
Spillway pipes: (See Below) _____________________ A
N/A
Decant system: : Inoperable ______________________ Yes No
Yes
N/A
20. Trash racks clear and in place: __________________________________ No
21. Discharge rate (gpm) _____________________________________________ 23

*Major adverse changes in these items could cause instability an
Engineering Manager and Mine Superintendent for further evaluati
noted in these items should normally be described (extent, location, volume, etc.) in the
space on the back of this sheet.