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PERIODIC INSPECTION FORN <br /> Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Michae l Altavilla DATE: ~6/29/9B <br />NPDES I.D. NO.: N/A <br />FACILITY CONFIGURATION: _ Eacieed Pond DATE LAST INSPECTION: 03/23/98 <br />SITE NAME: sp; 7 -on o~ Pond No. LOCATION: NWT NF.'s _c ec. 34 T6N R87W <br />MINE NAME: c ne~a~ Min rT (_ceneca Cca7 Col LOCATION: 7.1 mi. SE of Hayden, CO <br />MINE I.D. NO.: ODMG Permi t No. C-80-005 OWNER'S REP.: Brad Hrown, Cen Mq~ <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: ea No N/A <br />2. Lift thickness: in. <br />3. Compaction according to approved plan: Yes No <br />4. Burning (specify extent and location): Yee No N <br />5. Angle of elope: upstream, downstream Total = <br />6. *seepage (specify location, color, and approximate volume) <br />From underdrain pipes: Yee No N/A <br />At isolated points on embankment elopes: Yea (lo N A <br />At natural hillside: Yes ~ N/A <br />Over widespread areas: Yea o N/A <br />From downstream foundation area: Yee N/A <br />"Boils" beneath stream or ponded water: Yea o N/A <br />7. Cracks or ecarpe on crest: Yee N/A <br />8. Cracks or ecarpe on elope: Yes N/A <br />9. Sloughing or bulging on elope: Yee ~ N/A <br />10. *Major erosion problems: Yee o N/A <br />11. Surface movements in valley bottom or on hillside: Yee ~ N/A <br />12. *Eroeion of toe: Yee No N/A <br />13. *Water impounded against toe: Yee No N/A <br />14. Existing embankment freeboard: see comments 6.0 feet <br />15. ~ Increase Decrease in water level: 1.0 feet <br />16. Cracks, bulging, or erosion on upstream face: Yes ~ N A <br />17. Visible sumps or sinkholes in slurry surface: Yee No N <br />18. *Clogging <br />spillway channels and pipes: Yee No <br />Decant system: Yee No A <br />Diversion ditches: Yee ~ N/A <br />19. *Cracking or crushing of pipes ~l~r/~~l~~jp_(~~) <br />Spillway pipes: Yee No `~~ <br />Decant system: Yes No <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 apace on <br />the back of this sheet. <br />