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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones DATE: 3 -A - 00l <br />NPDES I.D. NO.: CO-0000221 D.P. <br />FACILITY CONFIGURATION: Cross-Val <br />SITE NAME: Pond #010 <br />MINE NAME: Yoast Mine(Seneca Coal <br />MINE I.D. NO.: CMLRD Permit No. C <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 />21. <br />010 G <br />Lev Pond DATE LAST INSPECTION: <br />LOCATION: NWIA NE'/a, Sec. 8, T5N, R87W <br />Co) LOCATION: 8.5 mi. SE of Hayden, CO <br />-94-082 OWNER'S REP.: Roy Karo, Gen Mar <br />Circle or write in appropriate response <br />Foundation preparation (removal of vegetation, stumps, topsoil: _ Yes <br />Lift thickness: 8 <br />Compaction according to approved plan: Yes <br />Burning (specify extent and location): No <br />Angle of slope: 3.75:1 upstream, 3.75:1 downstream Total = <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 />Cracks or scarps on crest: <br />Cracks or scarps on slope: <br />Sloughing or bulging on slope: <br />*Major erosion problems: <br />Surface movements in valley bottom or on hillside: <br />*Erosion of toe: <br />*Water impounded against toe: <br />Existing embankment freeboard: normal = 10.0' <br />Increase Decrease in water level: Irv C ca.(.add <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 />Discharge rate (gpm) <br />in. <br />7.5:1 <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 No N/A <br />Yes No N/A <br />Yes No N/A <br />Yes N/A <br />Yes U N/A <br />Yes N N/A <br />0 feet <br /> feet <br />Yes O N/A <br />N/A <br />Yes No N/A <br />N/A <br />N/A <br />Yes N> <br />N/A <br />es No <br />?3 <br />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 />,cam o L-,- PO'"-x_ <br /> <br />S1,,dw OL%- <br />y ve