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'lister-tvtovntain La6oratorips, Ins <br />Client Colowyo Coal Company L. P. <br />roject Colowyo Mine <br />Sample ID: 007 <br />Lab ID: 0198W02862 <br />Matrix: Water <br />Condition: Cool/Intact <br />1~1Ga }l1 Li~~ <br />L~ 002 <br />~_ <br />tfi77 Tera Avenue <br />Sheridan, WY 82dOt <br />Data Received: 06/20/93 <br />Date Reported: 07/06!38 <br />Date Sampled: 06/19!98 <br />Time Sampled: 0900 <br />.C' i. ~ i ~;i .1i~k~n..~~ .~~~. i.~, i .ill: ... p.~_. . <br />I:i~r.''. ...I :'...:~ ~ Ari cal I':., -~ ,r ' .., <br />~.~: <br />I. M_ f7 ~ 'fit.. ~~j ~nal sie;~: <br />,. .i,., t` ,.,f "~~'yt u ~.i,~~~. r..r4:~~~11~, ~ ~ .. i:i ~,lfnits ~ ~~i:r: .~i:,~~,~~, ~:,..,~~} Y .. <br />.:. ii n1„.. .. <br />.. ~ Partacne er ~ RCS It ~'" 1'l~m <br />f ~ ~~.~s~IPQL' .,;lVl'ethod ~~C~Oae 7riiG <br />Field Parameters <br />F'iefd PH„" .................................... 8.4 s. u. 0.1 EPA 150.7 06/19/9d K4V <br />Field Cdndur~vity .......................... 1 499 Nmhos/cm 0.1 EPA 120.7 06!78/98 KW <br />Field Temperature ......................... 12.0 'C N/A Field 06/19/98 kN <br />Flaw ............................................ 0.20 ds N/A N!A 06/79/98 kN <br />General Parameters <br />lab pH ......................................... 8.4 s.u. 0.1 EPA 150.7 0622/98 ML <br />Lab Conductivity ~ 26'C,,,,,,,,,,,,,,, 7,400 Nmhas/un 1 EPA 120.7 07!02/98 BN <br />Total Satteable Solids .................... <0.5 m11L 0.5 EPA t60.8 0820/98 WN <br />Total Oissofved Solids ~ 180'C...... 7.020 mg/L 70 EPA 760.7 0629/98 ML <br />Total Suspended Solids ................. 80 mglL 5 EPA 160.2 0622198 BN <br />Total Metals <br />Iron .............................................. 1.76 mg/L 0.05 EPA 200.7 0824198 BA <br />,-ems: U. S. E.P A 500/x79-020. 'Mlethcas far Chamiol Analysis of N/ater and 4Vas[es". 1987. <br />U. S.E. P.A 600/4-79-020. '~Vtetnads for Chemical Analysis at water and Wastes-, 199x, <br />Reviewed By: C,U <br />Wade Nieuwsma. Water Loh Supervisor <br />