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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones <br />NPDES I.D. NO.: N/A <br />FACILITY CONFIGURATION: Cross-Valley Pond <br />SITE NAME: Pond #012A <br />MINE NAME: Yoast Mine(Seneca Coal Co) <br />MINE I.D. NO.: CMLRD Permit No. C-94-082 <br />DATE : ®^' - _0 <br />1-7 DATE LAST INSPECTION: " <br />LOCATION: NEl/4 NEV44,Sec. 19, T5N, R87W <br />LOCATION: 8.5 mi. SE of Hayden, CO <br />OWNER'S REP.: Roy Karo, Gen Mgr <br />Circle or write in appropriate response <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 />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: upstream, downstream <br />*Seepage (specify location, color, and approximate volume) <br />Yes <br />in. <br />Yes <br />No <br />Total FNo <br /> <br />From underdrain pipes: Yes <br />At isolated points on embankment slopes: Yes <br />At natural hillside: Yes <br />over widespread areas: Yes <br />From downstream foundation area: eo Q W Ye <br />"Boils" beneath stream or ponded water: Yes <br />Cracks or scarps on crest: Yes <br />Cracks or scarps on slope: Yes <br />Sloughing or bulging on slope: Yes <br />*Major erosion problems: Yes <br />Surface movements in valley bottom or on hillside: Yes <br />*Erosion of toe: Yes <br />*W t r a e iounded a ainst toe: <br />m Yes <br />p g <br />Existing embankment freeboard: (4.6' when full) <br />Increase Decrease in water level: <br />Cracks, bulging, or erosion on upstream face: <br />Visible sumps or sinkholes in slurry surface: <br />No <br />oNo <br />feet <br />feet <br />Yes <br />N/A <br /> <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 />*Clogging <br />Spillway channels and pipes: Yes I3o N/A <br />Decant system: N/A <br />Diversion ditches: N/A <br />*Cracking or crushing of pipes <br />Spillway pipes: Yes &o> N/A <br />Decant system: N/A <br />Trash racks clear and in place: Ye No N/A <br />Discharge rate (gpm) 0 <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. p <br />® 42 l . V, i %.k- (acv a w c? 5 -cc l? <br />, A --J,? ", V VA- 0 V,