2013-02-01_HYDROLOGY - C2009087

• Permit No: C2009087
• IBM Index Class Name: HYDROLOGY
• Doc Date: 2/1/2013
• Doc Name: 4th Quarter 2012 Sedimentation Pond Inspection
• From: Peabody Sage Creek Mining, LLC
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: JDM
• Email Name: DIH
• Media Type: D
• Archive: No

INSPECTOR'S NAME: Dennis Jones
NPDES I.D. NO.: CO- 0048275 D.P. 004
FACILITY CONFIGURATION: Cross - Valley Pond
SITE NAME: South Section 12 Pond #004
MINE NAME: Peabody Sage Creek Mine
MINE I.D. NO.: CDRMS Permit No. C- 2009 -087
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PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
DATE: /0' (
DATE LAST INSPECTION:
Circle or write in appropriate response
Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of slope: 5:1 upstream, 2:1 downstream
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment slopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Boils" beneath stream or ponded water:
Cracks or scarps on crest:
Cracks or scarps on slope:
Sloughing or bulging on slope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
*Erosion of toe:
*Water impounded against toe: See bQ !O 1/4.7
Existing embankment freeboard: (normal = 4.8')
Increase Decrease in water level: k
Cracks, bulging, or erosion on upstream face: (/
Visible sumps or sinkholes in slurry surface:
LOCATION: SW'% SE %, Sec.
LOCATION: 7.1 mi. SE of
OWNER'S REP.: Ed Brady
12, T5N, R87W
Hayden, CO
Yes
12
Yes
No
Total = 7:1
�To N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
N/A
'{.g feet
feet
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
N/A
N/A
*Clogging
Spillway channels and pipes: Yes No N/A
Decant system: Inoperable Yes No N/A
Diversion ditches: Yes Q N/A
19. *Cracking or crushing of pipes l I
Spillway pipes: 5< e IPQ `�G.) Yes N/A
Decant system: Inoperable Ycs No N/A
20. Trash racks clear and in place: r No N/A
21. Discharge rate (gpm) a3
*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. ��II (
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