Laserfiche WebLink
PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: 1-11-0 Q <br />O <br />NPDES I.D. NO.: CO-0000221 D.P. 014 6 <br />FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: <br />SITE NAME: Pond #014 LOCATION: NE?/a SW/a,Sec. 19, T5N, R87W <br />MINE NAME: Yoast Mine(Seneca Coal Cc) LOCATION: 8.5 mi. SE of Hayden, CO <br />MINE I.D. NO.: CMLRD Permit No. C-94-082 OWNER'S REP.: Gregg Kitchen, Gen Mar <br />Circle or write in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: _ Yes <br />2. Lift thickness: in. <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3.0:1 upstream, 3.5:1 downstream Total = 6.5:1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: N/A <br /> At isolated points on embankment slopes: Yes o N/A <br /> At natural hillside: Yes No N/A <br /> Over widespread areas: Yes No N/A <br /> From downstream foundation area: Yes No N/A <br /> "Boils" beneath stream or ponded water: Yes No N/A <br />7. Cracks or scarps on crest: Yes No N/A <br />8. Cracks or scarps on slope: Yes No N/A <br />9. Sloughing or bulging on slope: Yes No N/A <br />10. *Major erosion problems: Yes No N/A <br />11. Surface movements in valley bottom or on hillside: Yes No N/A <br />12. *Erosion of toe: Yes N N/A <br />13. *Water impounded against toe: Yes N/A <br />14. Existing embankment freeboard: (normal = 5.01) <br />T feet <br />15. Increase _ I Decrease in water level: feet <br />16. Cracks, bulging, or erosion on upstream face: Yes No N/A <br />17. Visible sumps or sinkholes in slurry surface: N/A <br />18. *Clogging <br /> Spillway channels and pipes: Yes N/A <br /> Decant system: NA <br /> Diversion ditches: N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes N/A <br /> Decant system: N/A <br />20. Trash racks clear and in Place: es No N/A <br />21. Discharge rate (gpm) LU a ?s QNy ? <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. t ( ?,( <br />vie ?? ??