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<br /> PERIODIC INSPECTION FORM <br /> Water, Sediment, or Slurry Impoundments <br />INSPECTOR' S NAME: Dennis Jones DATE: ~Q ^Z~'~3 <br />NPDES I.D. NO.: CO-0000221 D.P. 016 G <br />~IG <br />~~~ <br />FACILITY C ONFIGURATION: Cross-Valley Pond DATE LAST INSPECTION: ( <br />SITE NAME: Pond #016 LOCATION: NEB/, SE'/,, Sec. 27, TSN, R88W <br />MINE NAME: Seneca II-W Mine (Seneca Coa1~CO) LOCATION: 8 mi. S of Hayden, CO <br />MINE I,D. NO.: CMLRD Permit No. C-62-057 OWNER'S REP.: Gregg Kitchen, Gen Mgr <br />Circle or write in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />2. Lift thickness: in. <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent and location}: No <br />5. Angle of slope: 3:1 upstream, ~3:1 downstream Total = 6:1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: N/A <br /> At isolated points on embankment slopes: Yes No N/A <br /> At natural hillside: Yes N/A ~a <br /> Over widespread areas: Yes No N/A I <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 /> <br />11. <br />Surface movements in valley bottom or on hillside: <br />Ye ~ n <br />N/A i.~L/ <br />` <br />12. *Erosion of toe: Yes No N/A <br />~ <br />13. *Water impounded against toe: Yes No N/A <br />14. Existing embankment freeboard: (normal = 7.0') ~ feet <br />15. Increase Decrease in water level: feet <br />16. Cracks, bulging, or erosion on upstream face: Yes ©o N/A <br />17. Visible sumps or sinkholes in slurry surface: N/A <br />18. *Clogging <br /> <br />Spillway channels and pipes: <br />Yes /~ <br />1U <br />N/A <br /> Decant system: N/A <br /> Diversion ditches: N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ~ N/A <br /> Decant system: N/A <br />20. Trash racks clear and in place: Yes 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 in <br />these items should normally be described (extent, location, volume, etc.) in the space on the <br />back of this sheet. <br />