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PERIODIC INSPECTION FOAM <br />Water, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: IJ e~.h.5 ~ 0~°u-S DATE: I ' I3 '~ <br />NPDES I.D. NO.: CO- 0000221 D.P. 011 ~ ~ O f <br />FACILITY CONFIGURATIO N: Cross-Valley Pond DATE LAST INSP ECTI ON: <br />SITE NAME: Pond #011 LOCATION: NEY SW'Ia Sec. 16 TSN R87W <br />MINE NAME: Yoast Mine (Seneca Coal Co) LOCATION: 8 5 mi. SE of Hayden CO <br />MINE I.D. NO.: CMLRD Permit No. C-94-082 OWNER'S REP.: Greo o Kitchen Gen Mar <br />Circle or write in aoorooriate rasoonse <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes No N/A <br />2. Lift thickness: 8 in. N/A <br />3. Compaction according to approved plan: Yes No N/A <br />4. Burning (specify extent and location): Yes No N/A <br />5. Angle of slope: 3.0:1 upstream, 2.8:1 downstream Total = 55 8:1 N/A <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 No 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 No N/A <br />13. *Water impounded against toe: Yes No N/A <br />14. Existing embankment freeboard: (normal = 5 1') 5, 6 feet <br />15. w Increase X Decrease in water level: ~• r feet <br />16. Cracks, bulging, or erosion on upstream face: Yes No N/A <br />17. Visible sumps or sinkholes in slurry surface: Yes No NL <br />18. *Clogging <br /> Spillway channels and pipes: Yes No N/A <br /> Decant system: Yes No NL <br /> Diversion ditches: Yes No <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes No N/A <br /> Decant system: Yes No <br />20. Trash racks clear and in place: Yes No NL <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 />