2016-04-28_HYDROLOGY - C2009087

• Permit No: C2009087
• IBM Index Class Name: Hydrology
• Doc Date: 4/28/2016
• Doc Name: Impoundment Report
• From: Peabody Sage Creek Mining, LLC
• To: DRMS
• Annual Report Year: 2016
• Report Quarter_Month: 1
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: JLE
• Email Name: DIH
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM: Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Jason Herden DATE: 03/04/16
NPDES I.D. NO.: CO-0048275 D.P. 002
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: 11/02/15
SITE NAME: Wadge Impoundment #002 LOCATION: NWY4 NEY4, Sec. 2, 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.: Brian Watterson
CIRCLE OR WRITE IN APPROPRIATE RESPONSE: YES r NO N/A
1
Foundation preparation (removal of vegetation, stumps, topsoil: x
2
Lift thickness: x
3
Compaction according to approved plan: x
4
Burning (specify extent and location): x
5
Angle of slope: upstream, downstream Total= N/A
6
*Seepage (specify location, color, and approximate volume)
From underdrain pipes x
At isolated points on embanckement slopes x
At natural hillside: x
Over widespread areas: x
From downstream foundation area: x
"Boils" beneath stream or ponded water. x
7
Cracks or scarps on crest: x
8
Cracks or scarps on slope: x
9
Sloughing or bulging on slope: x
10
*Major erosion problems: x
11
Surface movements in valley bottom or on hillside: x
12
j *Erosion of toe: x
13
*Water impounded against toe: x
14
Existing embankment freeboard = NA
15
Increase Decrease in water level: NO CHANGE
16
Cracks, bulging, or erosion on upstream face: x
17
IVisible sumps or sinkholes in slurry surface: x
18
*Clogging
Spillway channels and pipes: x
Decant system: x
Diversion ditches: x
19
*Cracking or crushing of pipes
Spillway pipes: x
Decant system: x
20
Trash racks clear and in place: x
21
Discharge rate (gpm) = 111
*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 (extextent, location, volume, etc.) here: None