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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Michael A7tavi77a DATE: __ D6~29~98 <br />NPDES I.D. NO.: N/A <br />FACILITY CONFIGURATION: F'nal Pi rmno ~n ~n n DATE LAST INSPECTION: 03~18~98 <br />SITE NAME: peCOCO Reservoir LOCATION: cW} NG13~ gec_ 2 TcN R87W <br />MINE NAME: s n a TT Min (c ^ a oal o) LOCATION: 7.1 mi. 8E of Hayden ,~ <br />MINE I.D. NO.: c r.Rn p m+ No. -8 -Dc7 OWNER'S REP.: Brad Hrown, Can Mqr <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: ee No <br />2. Lift thickness: inches <br />3. Compaction according to approved plan: es No <br />4. Burning (specify extent and location): Yee Q <br />5. Angle of elope (degrees) degrees <br />6. *seepage (specify location, color, and approximate volume) <br />From underdrain pipes: Yes <br />At isolated points on embankment elopes: Yes <br />At natural hillside: Yee o <br />Over widespread areas: Yes o <br />From downstream foundation area: Yee o <br />"Boils" beneath stream or ponded water: Yee o <br />7. Cracks or scarps on treat: Yee <br />8. Cracks or scarps on elope: Yea <br />9. Sloughing or bulging on elope: Yes <br />10. *Major erosion problems: Yee <br />11. Surface movements in valley bottom or on hillside: Yee <br />12. *Eroeion of toe: Yes <br />13. *Water impounded against toe: Yee <br />14. Existing embankment freeboard: see comments 6.1 feet <br />15. Increase Decrease in water level: No change feet <br />16. Cracks, bulging, or erosion on upstream face: Yes No <br />17. Visible sumps or sinkholes in slurry surface: Yee <br />18. *Clogging <br />Spillway channels and pipes: Yee <br />Decant system: Yee <br />Diversion ditches: Yee No <br />19. *Cracking or crushing of pipes <br />Spillway pipes: Yee No <br />Decant system: Yee No <br />20. Trash racks clear and in place: es No <br />*Major adverse changes in these items could cause instability and should be reported to the <br />Engineering Manager and Mine Superintendent for further evaluation. Adverse conditions noted <br />in these items should normally be described (extent, location, volume, etc.) in the apace on <br />the back of this sheet. <br />