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PERIODIC INSPECTION FORM <br />Stockponds or Sumpa <br />INSPECTOR'S NAME: Rov Karo <br />FACILITY CONFIGURATION: Stockoond <br />SITE NAME: T-16 <br />MINE NAME: Seneca II <br />MINE I.D. NO.: C-SO-005 <br />DATE: 12/16/96 <br />DATE LAST INSPECTION: 09/28/96 <br />LOCATION: SE'/.NWS:. Sec 12. TSN, R87W <br />LOCATION: _7.1 mi SE of Hayden. CO <br />OWNER'S REP.: Brad Brown. Gen Mar <br />Circle or write in appropriate response <br />1. Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1 N/A <br />2. *Seepage (specify location, color, and approximate volume) <br /> At isolated points on embankment slopes: Yes N/A <br /> At natural hillside: Yes ~ <br />o N/A <br /> Over widespread areas: Yes ~ N/A <br /> From downstream foundation area: Yes N/A <br /> "Boils" beneath stream or ponded water: Yes ~ N/A <br />3. Cracks or scarps on crest: Yes ~ N/A <br />4. Cracks or scarps on slope: Yes loo N/A <br />5. Sloughing or bulging on slope: Yes ~ N/A <br />6. 'Major erosion problems: Yes ~ N/A <br />7. Surface movements in valley bottom or on hillside: Yes ® N/A <br />8. •Erosion of toe: Yes /Np N/A <br />9. •water impounded against downstream toe: Yes o N/A <br />10. Existing embankment freeboard: A~oroximately 10 feet <br />11. Increase Decrease in water level: No chance feet <br />12. Cracks, bulging, or erosion on upstream face: Yes ® N/A <br />13. Spillway erosion: Yes ® N/A <br />14. *Clogging <br /> Spillway channels: Yes ~ N/A <br /> Diversion ditches: Yes o 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 />