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PERIODIC INBPECTION FORK <br />Water, Sediment, or Slurry Impouadmeats <br />INSPECTOR'S NAME: Michael Altavilla DATE: 12/31/99 <br />NPDES I.D. NO.: c0-0000 t ^.P. 00~ <br />FACILITY CONFIGURATION: Diked Pond DATE LAST INSPECTION: OQ/22/99 <br />SITE NAME: Northwest Impoundment #003 LOCATION: S%k sWir~ T6N RB7W <br />MINE NAME: s ne a 1' Min (c n a oa7 01 LOCATION: ?-1 mi. cc of Hayden, <br />MINE I.D. NO.: CMT.RD Permit No_ C-SO-OOc OWNER'S REP.: Brad Brown Gen MTr <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: es No N/A <br />2. Lift thickness: 1Z in. N/A <br />3. Compaction according to approved plan: es No N/A <br />4. Burning (specify extent and location): Yee No <br />5. Angle of elope: 2e1 upstream, 3,1 downstream Total = S.1 N/A <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yee No ®A <br /> At isolated points on embankment elopes: Yee o N/A <br /> At natural hillsides Yee N N/A <br /> Over widespread areas: Yee o N/A <br /> From downstream foundation area: Yes N N/A <br /> "Boils" beneath stream or ponded water: Yee N N/A <br />7. Cracks or scarps on treat: Yee No N/A <br />8. Cracks or scarps on elope: Yes N/A <br />9. Sloughing or bulging on elope: Yee ~ N/A <br />10. *Major erosion problems: Yee ® N/A <br />11. Surface movements in valley bottom or on hillside: Yee ® N/A <br />12. *Eroeion of toe: Yee N/A <br />13. *Water impounded against toe: Yes N/A <br />14. Existing embankment freeboard: see comments a.a feet <br />15. Increase Decrease in water level: No change feet <br />16. Cracks, bulging, or erosion on upstream face: Yee No N/A <br />17. Visible sumps or sinkholes in slurry surface: Yee No N/ <br />18. *Clogging <br /> Spillway channels and pipes: Yea ~ N/A <br /> Decant System: Yes <br /> Diversion ditches: Yee ~ N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yee No N A <br /> Decant System: Yes No <br />20. Trash racks clear and in place: Yes No N/A <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 />