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PERIODIC INS <br />water, Sediment, or <br />INSPECTOR'S NAME: Dennis Jones <br />NPDES I.D. NO.: CO-0000221 D. P. 009 ^~os <br />FACILITY CONFIGURATION: Cross-Valley Pond <br />SITE NAME: Pond 4009 <br />MINE NAME: Seneca II-W Mine (Peabody Coal Co.l <br />MINE I.D. NO.: CMLRD Permit No. C-62-057 <br />PECTION FORM <br />Slurry Impoundments <br />DATE: 03/10/94 <br />DATE LAST INSPECTION: 11/16/93 <br />LOCATION: SEA SW ;, Sec. 11, T6N, R88w <br />LOCATION: 8 mi. S of Hayden, CO <br />OWNER'S REP.: Scott Williams, Supt. <br />Circle or write in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: es No N/A <br />2. Lift thickness: 12 in. N/A <br />3. Compaction according to approved plan: ~~ No N/A <br />4. Burning (specify extent and location): Yes No 67 7 <br />5. Angle of slope: 3.1 upstream, 3.1 downstream Total = 6.1 N/A <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yes No ~i <br /> At isolated points on embankment slopes: Yes N/A <br /> At natural hillside: Yes N/A <br /> Over widespread areas: Yes (Fp NJA <br /> From downstream foundation area: Yes ~ N/A <br /> "Boils" beneath stream or ponded water: Yes Q~p N/A <br />7. Cracks or scarps on crest: Yes lL`Q N/A <br />8. Cracks or scarps on slope: Yes G~ NJA <br />9. Sloughing or bulging on slope: Yes ~ N/A <br />10. *Major erosion problems: Yes ~ NJA <br />11. Surface movements in valley bottom or on hillside: Yes ® N/A <br />12. *Erosion of toe: Yes ~ NJA <br />13. ~*Water impounded against toe: Yes. _~_ N/A <br />14. Existing embankment freeboard: Approx. 11.0 feet <br />15. X Increase Decrease in water level: 3 feet <br />16. Cracks, bulging, or erosion on upstream face: Yes ~ N/A <br />17. Visible sumps or sinkholes in slurry surface: Yes No tl% <br />18. *CLogging <br /> Spillway channels and pipes: Yes ~d N/A <br /> Decant system: Yes No <br /> Diversion ditches: Yes No <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ~Ny~ NLA_ <br /> Decant system: Yes No ~N~J <br />20. Trash racks clear and in place: Y`e~ No N/A <br />•Major adverse changes in these items could cause instability and should be reported to the <br />Engineering Manager and Mine Superintendent for further evaluation. Adverse conditions noted <br />in these items should normally be described (extent, location, volume, etc.) in the space on <br />the back of this sheet. <br />