HYDRO29021

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 6/21/1993
• Doc Name: 2nd Qtr 1993 Inspections
• From: PEABODY WESTERN
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Blurry Impouadments
INSPECTOR'S NAME: Tom Wainwricht DATE: 06/10/93
NPDES I.D. NO.: CO-0000221 D.P. 008
FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 03/18/93
SITE NAME: Pond X008 LOCATION: SWk NW4, Sec. 7, T5N, R86W
MINE NAME: Seneca II Mine (Peabody Coal Co.) LOCATION: 7.1 mi. S of Hayden, CO
MINE I.D. NO.: CMLRD Permit No. C-005-80 OWNER'S REP.: Scott Williams. Surat.
Circle or write in appropriate response
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Foundation preparation (removal of vegetation, stumps, topsoil: ee No N/A
Lift thickness: 12 in. N/A
Compaction according to approved plan: ~ No N/A
Burning (specify extent and location): Yee No ~~
Angle of elope: 3.1 upstream, 3.1 downstream Total = 6.1 N/A
*Seepage (specify location, color, and approximate volume)
From underdrain pipes: Yes No ,I~/B~
At isolated points on embankment elopes: Yes LNg7 N/A
At natural hillside: cyge~ No N/A
Over widespread areas: Yes ~ N/A
From downstream foundation area: Yee YI N/A
"Boils" beneath stream or ponded water: Yee No N/A
Cracks or ecarpe on treat:
Cracks or ecarpe on elope:
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
*Eroeion of toe:
*Water impounded against toe:
Existing embankment freeboard:
Increase X 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:
Yee ENO/ N/A
Yee ~ N/A
Yee No N/A
Yes ~No~ N/A
Yee ~ N/A
Yee ~tiy% N/A
Yee ~~ N/A
7.0 feet
0.1 feet
Yee Rio N/A
Yee No ~~
Yee ~~ N/A
Yee No ~
Yee No ~/~1
Yee ~ N/A
Yee No ~N~
Cee No N/A
*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 apace on
the back of this sheet.