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CERTIFICATE OF ANALYSIS <br /> AI78/�/t/Ca/ Lc?�7dI'c�fdl-]/ Tucs•dtt)',March 12, 1042 <br /> TO: William Little <br /> Advanced GeoEnviron mental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound in Gasoline by GC/MS <br /> Sample Information <br /> Sample ID: 14493-03 Sample Type: Grab <br /> Sample Description. SP6 Project Name: 4040 E.Main ST. <br /> Date/Time Sampled: 3/6/2002 1:50:00 PM Sample Matrix: Soil <br /> ANALYTICAL RESULT QAIQCREPORT ' <br /> Date <br /> Test Parameter Method DLR Unit Result '!Analyzed e S% S% <br /> LCS Spike <br /> s Anal Blank LC <br /> Cane. ConMS c. M MSD RSD <br /> Benzene EPA 8260B 5 ug/kg 23 08-Feb-02 ND 12.8 90.0% 13 97.1% 94.4% 0.7% <br /> Toluene EPA 8260B 5 uglkg N❑ 08-Feb-02 ND 12.8 90.0% 12.8 100.6% 104.0%% <br /> 0.2% <br /> Ethylbenzene EPA 8260E 5 ug/kg 33 08-Feb-02 ND 12.8 88.0% 12.8 109.4% 95.2% 3.5% <br /> m p Xylene EPA 8260B 5 ug/kg 43 08-Feb-02 ND .25.6 87.5%---'--2--' <br /> 5.6 97.2% 97.7% . 0.1% <br /> o Xylene EPA 8260B 5 ug/kc 68 08-Mar-02 ND 12.8 89.5%0 12.8 96.9% 98.0% 0.3% <br /> 1 2-Dichloroethane-d4(Surrogate) %Recovery 95% <br />• •.>, ,_,;:.., .t.- ....L .>2,,,.,, _,:,,..::.�,,,..,-Wit. ,,., ,, w . <br /> 4-BFB(Surrogate) %Recovery 97% <br /> _.. ... .._,r.. _,. .., <br /> ........... .. <br /> rrtg!L -ni dligt urns per Liter =ppm RSD represent relative pereear Qferenr(RPD)betiveen duplicates SfHke of samples <br /> ugiL=nric•rograms per Liter=ppb or Duldierrte of Snmple <br /> R SP C F�UL TED, rtlS:hLSD-measure of the perccntrecorerye/�icicrucks rithinrlre,nratrt:X <br /> C=Composite G=Grab <br /> LCS-measure oftlre�percent recovery of the Laboralotp Control Spike(LCS) <br /> o 1at11 it Hao V Le, Laboratoty.Director DLR-Detection Limif for fhe Purpose of Reporting. Exceptional sample <br /> rneu'lces or interfereneces may retch in higher detection linins <br /> r � <br /> I,PA-!)rrironrtre•rrral Protection,lgency Method. SAf-.Stnndtrrd Method for•/scnnirutlion of{rater I4''asteivater 18t1t E;d Pum ! of 1 <br /> 545 E. Cleveland St. Suite A Stockton, CA 95204 Tel.: (209.) 462-0892 Fax: (209) 462-7935 � <br />