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PSRIODIC INSPSCTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Michael Altavilla DATE: 03~~99 <br />NPDES I.D. NO.: CO-0000221 D.P. O t0 <br />FACILITY CONFIGURATION: Croea-Vat_le y Pend DATE LAST INSPECTION: 12/10/98 <br />SITE NAMB: Pend l010 LOCATION: NWT NF.tj Sec. 8 TSN Ii87W <br />MINE NAME: Yoaet Mtne(cen a -ea o ~ LOCATION: 8.5 mi_ cF. of Hayden CO <br />MINE I.D. NO.: ~+t•R~ Permit No. c-o q-082 OWNER'S AEP.: Brad Brown, Gen Mgr <br />1. <br />2. <br />3. <br />4. <br />5. <br />6. <br />7. <br />8. <br />9. <br />10. <br />11. <br />12. <br />13. <br />14. <br />15. <br />16. <br />17. <br />18. <br />19. <br />20 <br />Foundation preparation (removal of vegetation, <br />Lift thickness: <br />Compaction according to approved plan: <br />Burning (specify extent and location): <br />Angle of elope: 3.7S:t upstream, 3.75.1 downstream <br />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: <br />At isolated points on embankment elopes: <br />At natural hillside: <br />Over widespread areas: <br />From downstream foundation area: <br />"BOile" beneath stream or ponded water: <br />Cracks or scarps on treat: <br />Cracks or scarps on elope: <br />Sloughing or bulging on elope: <br />*Major erosion problems: <br />Surface movements in valley bottom or on hillside: <br />*Eroeion of toe: <br />*Water impounded against toe: <br />Yes <br />Yee <br />Yee <br />Yee <br />Yea <br />Yea <br />Yee <br />Yee <br />Yee <br />Yee <br />Yee <br />Yee <br />Yee <br />N/A <br />N/A <br />N A <br />A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />N/A <br />Existing embankment freeboard: annrexim ately 10.O feet <br />Increaae Decrease in water level: Ne chan ge feet <br />Cracks, bulging, or erosion on upstream face: Yee No N/A <br />Visible sumps or sinkholes in slurry surface: Yee No <br />^Clogging <br />Spillway channels and pipes: Yee ~ N/A <br />Decant system: Yee No <br />Diversion ditches: Yee No <br />*Cracking or crushing of pipes <br />Spillway pipes: Yee No N A <br />Decant system: Yes No <br />Trash racks clear and in place: Yes No /A <br />*Major adverse changes in these items could cause instability and should be reported to <br />the Engineering Manager and Mine Superintendent for further evaluation. Adverse <br />conditions noted in these items should normally be described (extent, location, volume, <br />etc.) in the apace on the back of this sheet. <br />stumps, topsoil: _ <br />es No <br />~ in. <br />es No <br />Yee No <br />Total 7.5:7 <br />