2011-05-18_HYDROLOGY - C2009087 ‎(2)‎

• Permit No: C2009087
• IBM Index Class Name: HYDROLOGY
• Doc Date: 5/18/2011
• Doc Name: 1st Quarter 2011 Sedimentation Pond Inspection
• From: Sage Creek Coal Company, LLC
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspect
• Email Name: JDM
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Dennis Jones DATE: ?-? 3 -? 1
NPDES I.D. NO.: CO-0048275 D.P. 004
FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 0- L!' to
SITE NAME: South Section 12 Pond #004 LOCATION: SW1/a SE1/,, Sec. 12, T5N, R87W
MINE NAME: Peabody Sage Creek Mine LOCATION: 7.1 mi. SE of Hayden, CO
MINE I.D. NO.: CDRMS Permit No. C-2009-087 OWNER'S REP.: Mike Ludlow
Circle or write in appropriate response
1.
2.
3.
4.
5.
6.
7.
8.
9.
10
11
12
13
14
15
16
17
18
19
20.
21.
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
e?
?• v
Yes
N/A
7:1
NO
No
No
No
No
No
No
No
No
No
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
feet
feet
No N/A
Yes O N/A
YeR NQ N/A
Yes No N/A
Yes (D N/A
Yes Pie-"N; A
es No N/A
13-1
*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.
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:
Existing embankment freeboard: (normal = 4.81)
Increase Decrease in water level :
Cracks, bulging, or erosion on upstream face:
Visible sumps or sinkholes in slurry surface:
*Clogging
Spillway channels and pipes:
Decant system:
Diversion ditches:
*Cracking or crushing of pipes
Spillway pipes:
Decant system:
Trash racks clear and in place:
Discharge rate (gpm)
Inoperable
Total
Yes
12
Yes
No
Inoperable