HYDRO26415

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 1/13/1994
• Doc Name: 4th Qtr 1993 Inspections
• From: PEABODY WESTERN
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockponds or Sumps
INSPECTOR'S NAME: Dennis Jones DATE: 11/11/93
FACILITY CONFIGURATION: Stockoond DATE LAST INSPECTION: 6/10/93
SITE NAME: T-8 SITE LOCATION: NE'~SW'~, Sec 12,TSN, R87W
MINE NAME: Seneca II LOCATION: 7.1 mi SE of Hayden, Colorado
MINE I.D. NO.: C-80-005 OWNER'S REP.: Scott Williams, Suot.
Circle or write is aoorooriate resooase
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Angle of elope: 3:1 upstream, 3.5:1 downstream
*Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes:
At natural hillside: _ _
Total = 6.5:1 N/A
Yes ENO, N/A
Yes ~No~ N/A
Over widespread areas: Yes ~No~ N/A
From downstream foundation area: Yes f~1o; N/A
"Boils" beneath stream or ponded water: Yes LNG N/A
Cracks or scarps on crest: Yes ~a N/A
Cracks or scarps on slope: Yes LNc' N/A
sloughing or bulging on elope: Yes Nom' N/A
*Major erosion problems: Yes TRIO. N/A
Surface movements in valley bottom or on hillside: Yes LNy N/A
*Erosion of toe: Yes ~~ N/A
*water impounded against downstream toe: Yes ~ N/A
Existing embankment freeboard: from crest = 5 feet
Increase Decrease in water level: feet
Cracks, bulging, or erosion on upstream face: Yes [~JO- N/A
Spillway erosion: Yee ~TIO% N/A
*Clogging
Spillway channels: Yes ~Noi N/A
Diversion ditches: Yes 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.