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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry Impoundments <br /> <br />INSPECTOR'S NAME: Tom Wainwright DATE <br />03/18/92 <br />NPDES I.D. NO.: - D.P. 003 11/21/91 <br />FACILITY CONFIGU Diked Pond DATE LAST INSPECTION: <br />SITE NAME: Northwest Im oundment #003 LOCATION: SE'/~SW'/.,Sec. ,.T N, <br />MINE NAME: eneca the ea o y oa o LOCATION: mi. o ay en, <br />MINE I.D. N .. ermi - - OWNER'S R .: Scntt 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 N/A <br />5, Angle of slope: 2:1 upstream, 3:1 downstream Total = 5:1 N/A <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yes o ~t~ <br /> At isolated points on em an men s opes: 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 wa er: Yes o 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: 4.9 feet <br />15. Increase Decrease in water level: 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 N/A <br />18. *Clogging <br /> Spillway channels and pipes: Yes !~0 1~ <br /> Decant system: Yes No QJ~ <br /> Diversion ditches: Yes ~ N/A <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes ~ N/A <br /> Decant system: Yes No <br />20. Trash racks clear and in place: es No N/A <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 condi- <br />tions noted in these items should normally be described (extent, location, volume, etc,) <br />in the space on the back of this sheet. <br />