2013-05-14_HYDROLOGY - C2009087 ‎(3)‎

• Permit No: C2009087
• IBM Index Class Name: HYDROLOGY
• Doc Date: 5/14/2013
• Doc Name: 1st Quarter 2013 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

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Dennis Jones DATE: --
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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DATE LAST INSPECTION: le) Z2 \ l Z-
LOCATION: SWV4 SEV44, Sec. 12, TSN, R87W
LOCATION: 7.1 mi. SE of Hayden, CO
OWNER'S REP.: Ed Brady
Circle or write in appropriate response
Foundation preparation (removal of vegetation, stumps, topsoil: Yes
Lift thickness: 12
Compaction according to approved plan: Yes
Burning (specify extent and location): No
Angle of slope: 5:1 upstream, 2:1 downstream Total =
*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:
Existing embankment freeboard: (normal = 4.81)
Increase Decrease in water level: txj cI�L,
Cracks, bulging, or erosion on upstream face:
Visible sumps or sinkholes in slurry surface:
*Clogging
Spillway channels and pipes:
Decant system: Inoperable
Diversion ditches:
*Cracking or crushing of pipes
Spillway pipes:
Decant system: Inoperable
Trash racks clear and in place:
Discharge rate (gpm)
N/A
7:1
Yes
No
N/A
Yes
No
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Yes
No
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Yes
No
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Yes
No
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Yes
No
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Yes
No
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Yes
No
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Yes
No
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Yes
No
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Yes
No
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Yes
No
N/A
6
feet
ff eae t
Yes
c, No )
N/A
N/A
Yes �1 N/A
VeR Neon
Yes No N/A
Yes (No) N/A
Yes No N/A
[5
*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. _
C,
LA-