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
NPDES I.D. NO.: N/A
FACILITY CONFIGURATION: Final Pit Impoundment
SITE NAME: PeCoCo Reservoir
MINE NAME: Peabody Sage Creek Mine
MINE I.D. NO.: CDRMS Permit No. C- 2009 -087
DATE: 3- (1ir1�
DATE LAST INSPECTION: tO 2 Z -17-
LOCATION: SWV44 NWl /,, Sec. 2, TSN, R87W
LOCATION: 7.1 mi. SE of Hayden, CO
OWNER'S REP.: Ed Brady
Circle or write in appropriate response
1.
Foundation preparation (removal of vegetation, stumps, topsoil:
Yes
2.
Lift thickness:
3.
Compaction according to approved plan:
Yes
4.
Burning (specify extent and location):
No
5.
Angle of slope (degrees)
6.
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
N/A
At isolated points on embankment slopes:
Yes
At natural hillside:
Yes
Over widespread areas:
Yes
From downstream foundation area:
Yes
"Boils" beneath stream or ponded water:
Yes
7.
Cracks or scarps on crest:
Yes
8.
Cracks or scarps on slope:
Yes
9.
Sloughing or bulging on slope:
Yes
10.
*Major erosion problems:
Yes
11.
Surface movements in valley bottom or on hillside:
Yes
12.
*Erosion of toe:
Yes
13.
*Water impounded against toe:
Yes
14.
Existing embankment freeboard: (normal = 6.11)
15.
Increase Decrease in water level: h
16.
Cracks, bulging, or erosion on upstream face:
Yes
17.
Visible sumps or sinkholes in slurry surface:
N/A
18.
*Clogging
Spillway channels and pipes:
Yes
Decant system:
N/A
Diversion ditches:
N/A
19.
*Cracking or crushing of pipes
Spillway pipes:
Yes
Decant system:
N/A
20.
Trash racks clear and in,place:
N/A
21.
Discharge rate (gpm) LC <g-X A
*Major adverse changes in these items could cause instability and should
Engineering Manager and Mine Superintendent for further evaluation. Adverse
these items should normally be described (extent, location, volume, etc.)
back of this sheet.
inches
degrees
No
No
No
No
No
No
No
No
No
No
No
feet
feet_,...
N9
No\�
ONO
be reported to the
conditions noted in
in the space on the