HYDRO25950

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/4/1993
• Doc Name: 3rd Qtr 1993 Inspections
• From: PEABODY WESTERN
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Tom Wainwright DATE: 09/21/93
NPDES I.D. NO.: CO-0000221 D.P. 008
FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: 06/10/93
SITE NAME: Pond X008 LOCATION: SW's NW1r, Sec. 7. T6N, 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, Supt.
Circle Or Write in appropriate re6pOIIee
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Foundation preparation (removal of vegetation, stumps, topsoil: ~ 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:
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 treat:
Cracks or scarps on elope:
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
*Erosion 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 No tf/7
Yee o pip
o N/A
ee QQ~~ N/A
Yee Q9p7 N/A
Yes Q p~ N/A
Yee ~ N/A
Yee ~ N/A
Yee ~ N/A
Yee ~ N/A
Yee ~ N/A
Yee ~ N/A
Yee ® N/A
7.1 feet
0.1 feet
Yee ~ N/A
Yee No ~1/A~
Yee ® N/A
Yee No
Yee No
Yee ® N/A
Yee No
es 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.