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PERIODIC INSPECTION FORM <br />Stockponda or Sumps <br />INSPECTOR'S NAME: Roy Karo <br />FACILITY CON FIGDRATION: Stockpond <br />SITE NAME: T-20 <br />MINE NAME: Seneca II-W <br />MINE I.D. NO.: C-82-057 <br />1 <br />2 <br />DATE: `~ ~/~~ <br />DATE LAST INSPECTION: <br />LOCATION: NW ,NE'., Sec 15, TSN, R88W <br />LOCATION: 8 mi S of Hayden, CO <br />OWNER'S REP.: Greqg Kitchen Gen.Mgr. <br />Circle or write in appropriate reaponae <br />Angle of slope: 3.9:1 upstream, 9.6:1 downstream <br />*Seepage (specify location, color, and approximate volume) <br />At isolated points on embankment slopes: <br />At natural hillside: <br />3 <br />4 <br />5 <br />6 <br />7 <br />8. <br />9. <br />10 <br />11 <br />12 <br />13 <br />14 <br />feet <br />feet <br />Yes o <br />Yes o <br />Yes No <br />Yes N <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />*Major adverse changes in these items could cause instability and should be reported to <br />the Engineering Manager and Mine Superintendent for Further evaluation. Adverse <br />conditions Noted in these items should Normally be described (extent, location, volume, <br />etc.) in the space on the back of this sheet. <br />Comments• ~Q Cf~ANIiE <br />Over widespread areas: <br />From downstream foundation area: <br />"Boils" beneath stream or ponded water: <br />Cracks or scarps on crest: <br />Cracks or scarps on slope: <br />Sloughing or bulging on slope: <br />*Major erosion problems: <br />Surface movements in valley bottom or on hillside: <br />*Erosion of toe: <br />Total = 8.5:1 <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes No <br />Yes o <br />Yes o~ <br />*Water impounded against downstream toe: <br />Existing embankment freeboard: <br />Increase Decrease in water level: <br />Cracks, bulging, or erosion on upstream face: <br />Spillway erosion: <br />*Clogging <br />Spillway channels: <br />Diversion ditches: <br />51 <br />