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S <br />PERIODIC INSPECTION FORN <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Mi ha 7 A7 av;77a DATE: 06/29/98 <br />NPDES I.D. NO.: N/A <br />FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: O'i/18/98 <br />SITE NAME: Truck Wash SuPp~ Pond LOCATION: NW~~3t, c~4 T6N R87W <br />MINE NAME: c n a M'n rr (c n a cal 01 LOCATION: 7.1 mi. cc of Hayden sO <br />MINE I.D. NO.: oDM- P mi No. -BO-OOC OWNER'S REP.: Brad Brown, Gen Mar <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: ea No N/A <br />2. Lift thickness: .1Z inches <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: 2:1 upstream, 2:1 downstream Total = 4:1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yee No <br /> At isolated points on embankment elopes: Yee N/A <br /> At natural hillside: Yee ~ <br />N N/A <br /> Over widespread areas: Yee N/A <br /> From downstream foundation area: Yes ~ <br />o N/A <br /> "Boils" beneath stream or ponded water: Yes o N/A <br />7. Cracks or scarps on treat: Yee o N/A <br />B. Cracks or scarps on elope: Yes Q N/A <br />9. Sloughing or bulging on elope: Yea ® N/A <br />10. *Major erosion problems: Yes ~ N/A <br />11. Surface movements in valley bottom or on hillside: Yee ®o N/A <br />12. *Eroeion of toe: Yes ~ N/A <br />13. *Water impounded against toe: Yee ~ N/A <br />14. Existing embankment freeboard: c o m n e 2.5 feet <br />15. ~_ Increase Decrease in water level: 0.5 feet <br />16. Cracks, bulging, or erosion on upstream face: Yes No N/A <br />17. Visible sumps or sinkholes in slurry surface: Yee No N® <br />18. *Clogging <br /> Spillway channels and pipes: Yee ® N A <br /> Decant eyetem: Yee No <br /> Diversion ditches: Yee ~ N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ~ N A <br /> Decant eyetem: Yea No A <br />20. Trash racks clear and in place: Yee 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 apace on <br />the back of this sheet. <br />