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PERIODIC INSPECTION FORM <br />Pater, Sedi>.ait, or Slurry Impoundments <br />INSPECTOR'S NAME: Dennis Jones <br />N.P,D.E.S. I.D. ND.: cn-nnnn~~i n.P_ nns <br />FACILITY CONFI6l1RATI0N: nikPrl Pond <br />SITE NAME: Nnrthwact Tmnm mriment !ln03 <br />MINE NAME: Senora TT Mine (Paahn v Coal Comnanvl <br />MINE I.D. NO.: rM~Rn permit Nn_ f.-005-RO <br />DATE: May 23, 1988 <br />DATE LAST INSPECTION: March 22, 1988 <br />LOCATION: $EaSW~, Sec. 27, T6N. R87W <br />LOCATION: 7,1 mi. SE of Hayden, CO <br />OWNER'S REP.: Don Zulian. Suot. <br />Circle or write in appropriate response <br />1. foundation preparation (removal of vegetation, stumps, topsoil)) Yes No <br />2. Lift thickness (inches) ~Z inches <br />3. Canpaction according to approved plan Yes No <br />4. Burning (specify extent and location} NIA X1~kXXS)R <br />5. Angle of Slope {•de~~) 7•i unctream_ 3c1 dnwnstream_ total = ~•1 ~9yMaeb <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes XR~XX <br /> At isolated points on embankment s opes Yes o <br /> At natural hillside Yes o <br />- -- Over widespread areas Yes o <br /> From downstream foundation area Yes <br /> __ _"Boils" beneath stream or ponde water Yes _ <br />7. Cracks or scarps on crest Yes <br />8. Cracks or scarps on slope Yes <br />9. Sloughing or bulging on slope Yes <br />10. *Major erosion problems Yes N~ <br />11. Surface movements in valley bottom or on hillside Yes <br />12. *Erosion of toe Yes <br />13. *Water impounded against toe Yes <br />14. Existing embankment freeboard (feet) 5 feet <br />15. Increase Decrease in water level (feet) 0 feet <br />16. Cracks, bulging, or erosion on upstrezm face Yes <br />17. Visible sumps or sinkholes in slurry surface N/A XI4XXXNOf <br />1B. *Clogging <br /> Spillway channels and pipes Yes <br /> Decant system `• ~ X~i(XXNtl <br /> Diversion ditc es Yes N~ <br />19. *Cracking or crushing of pipes <br /> Spillway pipes See comments) a~ <br />~ <br />_ Decant system XX <br />20:. Trash~acks clear and in place N/A- - Xg~XXNM - -- <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 />