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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments G <br />INSPECTOR'S NAME: Dennis Jones DATE: 'g-q- 0 O <br />NPDES I.D. NO.: CO-0000221 D.P. 010 <br />FACILITY CONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: <br />SITE NAME: Pond #010 LOCATION: NW1/ NEV/, Sec. 8, T5N, R87W <br />MINE NAME: Yoast Mine(Seneca Coal Co) LOCATION: 8.5 mi. SE of Havden, 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: 8 in. <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3.75:1 upstream, 3.75:1 downstream Total = 7.5:1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yes o N/A <br /> At isolated points on embankment slopes: Yes o N/A <br /> At natural hillside: Yes o N/A <br /> Over widespread areas: Yes o N/A <br /> From downstream foundation area: Yes o N/A <br /> "Boils" beneath stream or ponded water: Yes o N/A <br />7. Cracks or scarps on crest: 4Mv--LII &. v?t Solt CV`Cw S '0" es No N/A <br />8. Cracks or scarps on slope: " '+ es No N/A <br />9. Sloughing or bulging on slope: Yes N/A <br />10. *Major erosion problems: Yes N/A <br />11. Surface movements in valley bottom or on hillside: Yes Q N/A <br />12. *Erosion of toe: Yes N/A <br />13. *Water impounded against toe: Yes No N/A <br />14. Exis ting embankment freeboard: normal = 10.0' et <br />15. Increase Decrease in water level: t-,a G b.ci.SL feet <br />16. Cracks, bulging, or erosion on upstream face: Yes 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 No N/A <br /> Decant system: N/A <br />20. n <br />Trash racks clear and in place: D %. o V`J CC a No N/A <br />21. Discharge rate (gpm) 13 <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.