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PERIODIC INSPECTION FORM <br />Stockponds or Sumps <br />INSPECTOR'S NAME: Roy Karo <br />FACILITY CONFIGURATION: Stockpond <br />SITE NAME: T-12 <br />MINE NAME: Seneca II <br />MINE I.D. NO.: C-80-005 <br />DATE: 12/20/2001 <br />DATE LAST INSPECTION: 8/17/2001 <br />LOCATION: NW'/.SE`,6, Sec 12, TSN, R87W <br />LOCATION: 7.1 mi SE of Hayden, CO <br />OWNER'S REP.: Gregg Kitchen Gen. Mgr. <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 ~N~ N/A <br />L <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 N/A <br />4. Cracks or scarps on slope: Yes N/A <br />5. Sloughing or bulging on slope: Yes N/A <br />6. *Maj or erosion problems: Yes ~ N/A <br />7. Surface movements in valley bottom or on hillside: Yes ® N/A <br />8. *Erosion of toe: Yes rr{{ <br />~Iq <br />J <br />- <br />( N/A <br />9. *Water impounded against downstream toe: Yes 1,1 <br />`, <br />Yd N/A <br />10. Existing embankment freeboard: Approximately 7 feet <br />11. Increase Decrease in water level: No chaNO nqe feet <br />12. Cracks, bulging, or erosion on upstream face: Yes I@ N/A <br />13. Spillway erosion: Yes ~ N/A <br />14. *Clogging <br /> <br /> Spillway channels: Yes N/A <br /> Diversion ditches: Yes 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 />15 <br />