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PERIODIC INSPECTION FORM <br />9tockponda or Sumps <br />INSPECTOR'S NAME: Michael G. Altavilla <br />FACILITY CONFIGURATION: Stockpond <br />SITE NAME: T-15 <br />MINE NAME: Seneca IS <br />MINE I.D. NO.: C-80-005 <br />DATE: 03/31/95 <br />DATE LAST INSPECTION: 12/13/99 <br />LOCATION: SEYNWY, Sec 12, TSN, R87W <br />LOCATION: 7.1 mi SE of Hayden. CO <br />OWNER'S REP.: Scott Williams, Gen Mar <br />Circle or write in appropriate response <br />1. Angle of slope: upstream, downstream Total = 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 o N/A <br /> Over widespread areas: Yes ® N/A <br /> From downstream foundation area: Yes f4o N/A <br /> "Boils" beneath stream or ponded water: Yes ©o N/A <br />3. Cracks or scarps on crest: Yes 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: es No N/A <br />7. Surface movements in valley bottom or on hillside: Yes ® N/A <br />8. *Erosion of toe: Yes N/A <br />9. *Water impounded against downstream toe: Yes ~ <br />N N/A <br />10. Existing embankment freeboard: Approximately 6 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 No N/A <br />14. *Clogginq <br /> Spillway channels: Yes N/A <br /> Diversion ditches: Yes ~ <br />o N/A <br />*Maj or 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.l in the space on the back of this sheet. <br />