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PERIODIC INSPECTION FORM <br />Pater, Sedi~ent, or Slurry I~poundments <br />INSPECTOR'S NAME: ~ek~.,; s ~0~.05 DATE: 6 - /d ~ FS.S <br />N.P .D.E.S. I.D. NO.: CO-0037656 D.P. 001 <br />FAC ILITY CONFIGU2ATION: Cross Valley Pond DATE LAST INSPECTION: off' 6 • $ S <br />SIT E NAME: Mesa Gravel Pit Im oundment LOCATION: NE;SE;, Sec .18 T6N, R87W <br />MINE NAME: Mesa Gravel Pit (Peabody Coal Company LOCATION: 3.8 mi. ESE of Hayden, C <br />MIN E I.D. NO.: CMLRB Permit No. 82-36 OWNER'S REP.: Don Zulian, Supt. <br /> Circle or trite in appro priate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil?) es No <br />2. Lift thickness (inches) 12 inches <br />3. Compaction according to approved plan es No <br />4. Burning (specify extent and location) N/A Y(6!9(XkYd( <br />5. Angle of slope ice`--2:1 upstream, 2.4:1 downstream, total = 4.4:1 _ d&(c,~Y@~A(~( <br />6. *Seepage (specify location, color, and approxi mate volume) <br /> From underdrain pipes © No <br /> At isolated points on embankment s open Yes No <br /> At natural hillside Yes <br /> Over widespread areas Yes No <br /> From downstream founds ion area Yes o <br /> "Boils" beneath stream or ponde water Yes No <br />7. Cracks or scarps on crest Yes No <br />8. Cracks or scarps on slope Yes <br />9. Sloughing or bulging on slope Yes <br />10. *Major erosion problems Yes No <br />11. Surface movements in valley bottom or on hillside Yes <br />12. *Erosion of toe Yes No <br />13. *Water impounded against toe Yes ®o <br />14. Existing embankment freeboard (feet) cx1Q.~. ru.~~ U- ko-~u~o.~.n ~ feet <br />15. / Increase Decrease in water ley 1 (feet) _G^1 feet <br />16. Cracks, bulging, or erosion on upstream face Yes No <br />17. Visible sumps or sinkholes in slurry surface N/A Y~'sXX~., <br /> ~ <br />18. *Clogging .' <br /> Spillway channels and pipes ~ No <br /> Decant system Yes Cl1[nN <br /> Diversion ditc es Yes ®o <br />19. *Cracking or crushing of pipes <br />Spi 11 way pipes N ~/) i'es---Ne <br />Decant system Yes (~o <br />20. Trash racks clear and in place N/A (XkWX <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 />