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I <br /> EXCELCHEM <br /> ENVIRONMENTAL LABS <br /> 500 Giuseppe Court, Suite 9 <br /> Roseville, CA 95678 <br /> Phone# (916) 773-3664 Fax# (916) 773-4784 <br /> OA/ C REPORT <br /> Attention Mr Matt Taylor Date Analyzed 04-12-97 <br /> Wallace-Kuhl & Associates Matnx Water <br /> 3050 Industnal Blvd <br /> Yvtst Sacrarneato C- 95691 <br /> Project 2938 03/1444 Manposa Ave <br /> Ethyl- Total <br /> Benzene Toluene benzene Xylenes <br /> PPB PPB PPB PPB <br /> Reporting Limit .05 0 5 0 5 0 5 <br /> QA/QC PARAMETER <br /> Matrix Blank ND ND ND ND <br /> PERCENT RECOVERIES <br /> Laboratory Control Spike 95% 98% 98% 99% <br /> Laboratory Control Spike 98% 101% 101% 103% <br /> Duplicate <br /> ppb=parts per billion=ug/L-microgram per liter <br /> ND =Not&tt.etLd Compound(s)may he present at concentrations below the rcporting limit <br /> \ll surrogate recoveries were within 30%of target values <br /> Spike+&Spike Duplicates were each spiked with 250 ng STN\standard <br /> ANAL%TICAL PR(X FDURPS <br /> 1t FIX iienten6 t(JIUM416 cthylbenzene and total%ylene (13 I EX)are mt,asured by retraction Luing UA Method 5030 tollowcd by rnalvsls <br /> ti+mg i P\Method 602 which utllt/cs a gas ehromalubraph(()C)equipped with a phok,wnvation dUecior(PID) <br /> l <br /> 04-22-97 <br /> i4-aratory Representative Date Reported <br /> I-LII ),III If,�IKUNMI NIAI tAIL,ISf!loll ItDRl ilii+IAIVlIp Al IHIKNIA <br /> I)II'AkI1 1I I(N HI ,NI IttYRV1, IS itiAIiA/AKIx)U%WA..'M WIFIN( [JAVA IRA WRY <br /> (I I.nifty aLum N I 17n4t 1114) <br />