Laserfiche WebLink
INSPECTOR'S NAME: Dennis Jones <br />NPDES I.D. NO.: CO- 0000221 D.P. 011 <br />FACILITY CONFIGURATION: Cross - Valley Pond <br />SITE NAME: Pond #011 <br />MINE NAME: Yoast Mine(Seneca Coal Co) <br />MINE I.D. NO.: CMLRD Permit No. C -94 -082 <br />1. <br />2. <br />3. <br />4. <br />5. <br />6. <br />PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />DATE: 9 I - it <br />DATE LAST INSPECTION: <br />Circle or write in appropriate response <br />LOCATION: NE'% SWl /,,Sec. 16, T5N, R87W <br />LOCATION: 8.5 mi. SE of Hayden, CO <br />OWNER'S REP.: Roy Karo, Gen Mgr <br />Foundation preparation (removal of vegetation, stumps, topsoil: <br />Lift thickness: <br />Compaction according to approved plan: <br />Burning (specify extent and location): <br />Angle of slope: 3.0:1 upstream, 2.8:1 downstream <br />*Seepage (specify location, color, and approximate volume) <br />From underdrain pipes: <br />At isolated points on embankment slopes: <br />At natural hillside: <br />Over widespread areas: <br />From downstream foundation area: <br />"Boils" beneath stream or ponded water: <br />Yes <br />8 in. <br />Yes <br />No <br />Total = 5.8:1 <br />7. Cracks or scarps on crest: <br />8. Cracks or scarps on slope: <br />9. Sloughing or bulging on slope: <br />10. *Major erosion problems: <br />11. Surface movements in valley bottom or on hillside: <br />12. *Erosion of toe: <br />13. *Water impounded against toe: <br />14. Existing embankment freeboard: (normal = 5.1') <br />15. Increase ✓ Decrease in water level: <br />16. Cracks, bulging, or erosion on upstream face: <br />17. Visible sumps or sinkholes in slurry surface: <br />18. *Clogging <br />Spillway channels and pipes: Yes N/A <br />Decant system: N/A <br />Diversion ditches: N/A <br />19. *Cracking or crushing of pipes <br />Spillway pipes: Yes Too N/A <br />Decant system: N/A <br />20. Trash racks clear and in place: No N/A <br />21. Discharge rate (gpm) O <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes o N/A <br />Yes o N/A <br />Yes o N/A <br />Yes o N/A <br />Yes No N/A <br />Yes '1• N/A <br />- 7 feet <br />'..Z feet <br />Yes ® N/A <br />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 />toc,i2A, s.Q.0.D4 <br />�P <br />