Laserfiche WebLink
> ' <br />PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Mi ha 7 Al avi77a DATE: 09~22~99 <br />NPDES I.D. NO.: 0-0000 7 D O l <br />FACILITY CONFIGURATION: Cross-Valle y Pond DATE LAST INSPECTION: N,/A <br />SITE NAME: Pond £012 LOCATION: NRIr NWT _c ec. 19 TSN A87W <br />MINE NAME: yeast Mine(Seneca Coal C o) LOCATION: 8.5 mi. _cE of Hayden. CO <br />MINE I.D. NO.: CMT.RD Permit No. C-9 4-087 OWNER'S REP.: Brad Rrown, Gen Mac <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7. <br />e. <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, stumps, topsoil: es No <br />Lift thickness: ~Z in. <br />Compaction according to approved plan: Ye No <br />Burning (specify extent and location): Yee No <br />Angle of elope: 3.0:1 upstream, 3.0:1 downstream Total = 6.0:1 <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 crest: <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 />Ex iet ing embankment freeboard: Approximately <br />-7C- Increase Decrease in water level: <br />Cracks, bulging, or erosion on upstream face: <br />Visible sumps or sinkholes in slurry surface: <br />*Clogging <br />spillway channels and pipes: <br />Decant system: <br />Diversion ditches: <br />*Cracking or crushing of pipes <br />spillway pipes: <br />Decant system: <br />Trash racks clear and in place: <br />Yes No <br />Yee <br />Yes o <br />Yee o <br />Yes <br />Yea S~ <br />Yes <br />Yes <br />Yes .~ <br />Yea <br />Yee <br />Yee <br />Yee o <br />33.0 feet <br />2.o feet <br />Yes <br />Yes No <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 />N~A <br />N~A <br />N~A <br />Yes No~ N A <br />Yes o <br />Yes No <br />Yes ~ N A <br />Yes No ~A <br /> No N~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 space on the back of this sheet. <br />