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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue - Suite LM • Concord, California 94520 <br /> (510) 686-9600 FAX (510) 686-9689 <br /> - <br /> vFT.. - wr"' ^^-.,,]..,,:-.:s.: -.y._.y. ;:fi;..r. .,r..: :[on 4... v-:a::^•:n:[r <br /> 'iWii.vr <br /> rv�4#r...�r:`« ":?�rvi `w"1';:,]:w�vrtrn�rv.Str`.: .i..rw:w:] ii:r: ,.o...:] kr'•".^ i.;;r...vE>`s?v::,:';<`s's:<:::>'".].....o:.:. ,..��:#a.. .,,:.erv�.] -.f..v.- <br /> fKapreafan Engineer ng,rcnc. Clentrctoiect lD: Unocal, 601 E.[Kettleman, Lodi Sampieii: s?ct 12, 19924r <br /> <v2401 Stanwell Drive, Suite 400 Sample Matrix: Water Received: Oct 13, 19921x1 <br /> ,..--,.-.,Concord, CA 94520 Analysis Method: EPA 5030/8015/8020 Reported: Oct 20, 1992 } <br /> Attention: Mardo Kaprealian, P.E. First Sample #: 210-0396 v <br /> Kq..{Cv:nxw [^fi;.•r :..{.:i-'.:['r' n:[...:_;.n4:::-:?::ifi :.:.y.N4;.vr.;.v:;n:n nm4:;:r.Y'::.: {?4v..Ne.1.:v nvM:{.}:{Qvn:'l..;y: <br /> :''r v:.uHx::•- .r-.r.e:...:rn:•:.rynrnuv:+:uu}:m::ry:x{nv <br /> rvWv.-:r�CvA]:mn:^1ti�.:,w::nx:.TW}}n::.v:.::nv.nv::..:,.:nvrvn:.r.v::.4.'):4:?ti::isiiu.......:.r:.\u........rn..v.:r.fri%v,.Y:O:ti[.v:in%Y:Rv:.:4.')]:[[-:4:tihryvn:.n}i.:n[:LS.v...,]..:..:..v:v.v vv v '•Ji.:{{::.::.0 xv <br /> :. :V i.}!..},.::].::.[::L::.:::..:v. :..v:r:.v'v- .::. ... :.]!• •[: -- :::v{"rih rc nF V r v-W.t: ,: : { <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte limit I.D. I.D. I.D. I.D. I.D. I.D. <br /> pg/L 210-0396 210-0397 210-0398 210-0399 210-0400 210-0401 <br /> MW-1 MW-2 MW-0 MW-4 MW-5 MW-0 <br /> Purgeable <br /> Hydrocarbons 50 58 N.D. N.D. N.D. N.D. N.D. <br /> Benzene 0.5 .5.8 N.D. N.D. N.D. N.D. N.D. <br /> Toluene 0.5 N.D. N.D. N.D. N.D. N.D. N.D. <br /> Ethyl Benzene 0.5 N.D. N.D. N.D. N.D. N.D. N.D. <br /> Total Xylenes 0.5 0.81 N.D. N.D. N.D. N.D. N.D. <br /> Chromatogram Pattern: Gasoline -- -- -- -- <br /> Quality Control Data <br /> Report Limit Multiplication Factor. 1.0 1.0 1.0 1.0 1.0 1.0 <br /> Date Analyzed: 10/14/92 10/14/92 10/14/92 10/14/92 10/14/92 10/14/92 <br /> Instrument idents ication: HP-5 HP-5 HP-5 HP-5 HP-5 HP-5 <br /> Surrogate Recovery,%: 113 109 113 113 115 109 <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard. <br /> Analytes reported as N.D.were not detected above the stated reporting limit. <br /> SEQUOIA ANALYTICAL <br /> Sgt A. le o <br /> Project Manager 2100396.KE I <1> <br />