HYDRO23207

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/21/1994
• Doc Name: 3rd Qtr 1994 Inspections
• From: PEABODY WESTERN
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR' S NAME: Michael G. Altavilla DATE: 09/22 /94
NPDES I.D. NO.: CO-0000221 D.P. 004
FACILITY CONFIGURATION: C_roes-Valley Pond DATE LAST INSPECTION: 06/07/94
SITE NAME: South Section 12 Pond #`004 LOCATION: SW~i SE's, Sec. 12, TSN, R87W
MINE NAME: Seneca II Mine (Peabody Coal Co.l LOCATION: 7.1 mi. S of Hayden, CO
MINE I.D. NO.: CMLRD Permit No. C-005-80 OWNER'S REP.: Scott Williams, Supt.
Circle or write in aoorooriate resooase
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Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Anqle of elope: 5.1 upstream, 2.1 downstream
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
At isolated points on embankment elopes:
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:
Increase Decrease in water level: No chance
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:
Yes,' No
12 in
_ ~Ye~ No
Yes No
Total = 7.1
Yes 70~
Yes LNO•
Yes LNo,
Yes ~,
Yes LNo,
Yes LNoJ
Yes ~o~
Yes ~1
Yes LNo~
Yes too
Yea ~'
Yes
Yea
5.7 feet
feet
Yes f~fo
Yes No
Yes ~No,
Yes ~~
Yes Vii
Yes
Yes
~Y~si No
N/A
N/A
N/A
~,A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
~~
N/A
N/A
N/A
N/A
N/A
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 space on
the back of this sheet.