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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Michael Altavilla DATE: 12~31~99 <br />NPDES I.D. NO.: ,~A <br />FACILITY CONFIGURATION: F+nal Pi Imeoundm n DATE LAST INSPECTION: 09f22~Q9 <br />SITE NAME: PeCeCO Reaerveir LOCATION: sW's NW} sec. 2 TSN. A87W <br />MINE NAME: Seneca IL Mine 4seneca -sal ~) LOCATION: 7.1 mi. sF. of Haydenso <br />MINE I.D. NO.: cMT.Rn Permit No_ C-87-057 OWNER'S REP.: Brad Rrown, Can Mqr <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: es No <br />2. Lift thickness: inches <br />3. Compaction according to approved plan: ee No <br />4. Burning (specify extent and location): Yee No <br />5. Angle of elope (degrees) degrees <br />6. *Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: Yee N <br />At isolated points on embankment elopes: Yee <br />At natural hillside: Yee o <br />Over widespread areas: Yee o <br />From downstream foundation area: Yee o <br />"Boils" beneath stream or ponded water: Yes o <br />7. Cracks or scarps on treat: YeeL`J <br />8. cracks or scarps on elope: Yes No <br />9. Sloughing or bulging on elope: Yes No <br />10. *Najor erosion problems: Yes o <br />11. Surface movements in valley bottom or on hillside: Yee o <br />12. *Eroeion of toe: Yee o <br />13. *water impounded against toe: Yee o <br />14. Existing embankment freeboard: see cemments 6.1 feet <br />15. Increase Decrease in water level: No change feet <br />16. Cracks, bulging, or erosion on upstream face: Yee <br />17. Visible sumps or sinkholes in slurry surface: Yee <br />18. *Clogging <br />Spillway channels and pipes: Yee o <br />Decant system: Yee o <br />Diversion ditches: Yee o <br />19. *Cracking or crushing of pipes <br />Spillway pipes: Yes No <br />Decant system: Yee <br />20. Trash racks clear and in place: Yee 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 space on <br />the back of this sheet. <br />