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PERIODIC INSPECTION FORK <br />Water, Badiaeat, or Slurry Impouadmantc <br />INSPECTOR'S NAME: Michael Altavilla DATH: 12/10/98 <br />NPDES I.D. NO.: co-0000221 O.P. 002 <br />FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: _DQ,/18/98 <br />SITE NAME: WadQe Impoundmwnt #002 LOCATION: NW3. NR'Ar Cec_ 34 m6N RA7W <br />MINE NAME: a n a it M n (ceeeca Coal Cow LOCATION: 7.1 m;. SR of Hayden CO <br />MINE I.D. NO.: .Rn P rm; No. --80-005 OWNER'S REP.: Brad Rre~, Cen MQr <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yee No /A <br />2. Lift thickness: in. <br />3. Compaction according to approved plan: Yee No <br />4. Burning (specify extent and location): Yes No <br />5. Angle of elope: upstream, downstream Total = <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yee No <br /> At isolated points on embankment elopes: Yes No A <br /> At natural hillside: Yee ~ N/A <br /> Over widespread areas: Yee o N A <br /> From downstream foundation area: Yee No N/A <br /> "Boils" beneath stream or ponded water: Yes No N/A <br />7. Cracks or ecarpe on treat: Yee No <br />8. Cracks or ecarpe on elope: Yee No <br />9. Sloughing or bulging on elope: Yes No <br />10. *Major erosion problems: Yee ® N/A <br />11. Surface movements in valley bottom or on hillside: Yee ©o N/A <br />12. *Eroeion of toe: Yee No <br />13. *Water impounded against toe: Yes No N <br />14. Existing embankment freeboard: see comments ~A feet <br />15. Increase Decrease in water level: No change feet <br />16. cracks, bulging, or erosion on upstream face: Yee No <br />17. Visible sumps or sinkholes in slurry surface: Yes No <br />18. *Clogging <br /> Spillway channels and pipes: Yes ® N A <br /> Decant system: Yee No /A <br /> Diversion ditches: Yes ©o N A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ~ Nf~1 <br /> Decant system: Yea No ~~ <br />20. Trash racks clear and in place: ee 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 />