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t Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80487(800) 334-5493 <br />Kennecott Energy Co -Colowyo Coal Co. LP <br />Project ID: W76894 <br />Sample ID: OOtA <br />ACZ Sample ID: <br />Date Sampled: <br />Date Received: <br />Sample Matrix: <br />L49850-02 <br />02/10/05 09:10 <br />02111/05 <br />Surface Water <br /> <br />Y.'Clo6YN%blh'~ ~~~~`~'~Gi'Ki~~~~s~i~vY R~~~:. i~ 9 <br />Conductivity (Field) Field Measurement 2135 umhos/cm 02110/05 9:10 kb <br />Flow (Field) Field Measurement 0.05 cfs 02110/059:10 kb <br />pH (Field) Field Measurement 7.1 units 02/10/05 9:10 kb <br />Temperature (Field) Field Measurement 3.0 C 02/10/05 9:10 kb <br />Metals Analysis <br />yy <br />+ <br />'~ <br />~' ~ <br />".,+'; <br />+ o <br />"4 <br />`' <br />' <br />~ <br />~ <br />~'~ <br />m <br />~1 ' <br />if4 2R`m9.k'b ~ <br />v~. <br />o <br />s5~ <br />am <br />m <br />a <br />. .f <br />Iron, total M200.7 ICP 0.23 mg/L 0.01 0.05 02117/0514:46 wFg <br />Metals Prep <br /> <br />}~~ p{ ~.ry /~~,++j~~(! !~ <br />F~+' ~.R"k' 4i~~~~YrR>P~~~/kJb~~ 4 ~„~~~~~. <br />Total Hot Plate M200.2 ICP 02/16/05 13:42 ak <br />Digestion <br />Wet Chemistry <br />Q <br />N.:.9i~ n0~~. ~ ..(OF~E`M'M~~ ~ .. A".~~ ~1~~~ ..aYiC/ vmaZ~+~~.'~ v ~ ~a~~~~ ~~ <br />Conductivity @25C M120.1-Meter 2160 umhos/cm 1 10 02121/0510:06 jtl <br />~ La6 Filtration SM 3030 B 02/17/05 17:03 mpj <br />pH (lab) M150.1 - Electrometdc 7.9 H units 0.1 0.1 02124/0517:32 ct <br />Rasitlue, Filterable M160.1 -Gravimetric 1520 H mglL 10 20 02/22I051D:44 jtl <br />(TDS) @180C <br />Residue, Non- M160.2-Gravimetric See case N!A <br />Filterable (TSS) narrative <br />@105C <br />Residue, Settleable M160.5 -Volumetric U mLIUh 0.2 1 02/11/05 19:10 ktd <br />Matter (SS) <br />REPIN.01.11.00.01 `Please refer to Extended Ouali/ier Report for detail. <br />L49850: Page 5 of 26 <br />