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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-2 <br />MINE NAME: Seneca II-W <br />MINE I.D. NO.: C-82-057 <br />DATE: 12/20/2001 <br />DATE LAST INSPECTION: 08/17/2001 <br />LOCATION: NW~/.SW'b, Sec 22, TSN, R88W <br />LOCATION: 8 mi S of Hayden, CO <br />OWNER'S REP.: Gregg Kitchen Gen.Mgr. <br />Circle or write in appropriate response <br />1. Angle of slope: 3.3:1 upstream, 2.3:1 downstream Total = 5 .6:1 N/A <br />2. *Seepage (specify location, color, and approximate volume) <br /> At isolated points on embankment slopes: Yes ~I N/A <br /> vv <br /> At natural hillside: Y e s ~I N/A <br /> /~ <br /> Over widespread areas: Yes Q~16 <br />X N/A <br /> From downstream foundation area: Yes ~V <br />•`,1' 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 ~ 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 cE~ <br />~vq <br />~ <br />( N/A <br />9. *Water impounded against downstream toe: Yes `$[ <br />y- N/A <br />10. Existing embankment freeboard: Approximately 6.9 feet <br />11. x Increase Decrease in water level: 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 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 />45 <br />