2013-10-31_HYDROLOGY - C2009087 ‎(2)‎

• Permit No: C2009087
• IBM Index Class Name: Hydrology
• Doc Date: 10/31/2013
• Doc Name: 3rd Quarter2013 Sediment Pond Inspection ‎(Emailed)‎
• From: Scott Cowman
• 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: Chris Miller
DATE: 09/03/13
NPDES I.D. NO.: CO- 0048275 D.P. 003
FACILITY CONFIGURATION: Diked Pond
DATE LAST INSPECTION: 06/03/13
SITE NAME: Wadge Impoundment #003
LOCATION: SE% SW %, Sec. 27, T6N, 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.: Ed Brady
CIRCLE OR WRITE IN APPROPRIATE RESPONSE:
YES
NO
N/A
1
Foundation preparation (removal of vegetation, stumps, topsoil:
x
2
Lift thickness = 12 inches
3
Compaction according to approved plan:
x
4
Burning (specify extent and location):
x
5
Angle of slope: 2:1 upstream, 3:1 downstream
Total= 5:1
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
*Erosion of toe:
x
13
*Water impounded against toe:
x
14
Existing embankment freeboard (4.9' is normal) = 5.0'
15
Increase Decrease in water level: Same
16
Cracks, bulging, or erosion on upstream face:
EF'l
17
Visible 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) = 4
*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: 1) Item 15 - water level 0.1' below discharge level