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W <br /> CERTIFICATE OF ANALYSIS <br /> Analytics/ Laboratory ` <br /> Tuesday;Marrh 72,2002 <br /> TO. N <br /> William Little m <br /> CD <br /> Advanced GeoEnvironrnental W <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound in Gasoline by GC/MS Lo <br /> Sample Injut<triation N <br /> CD <br /> Lo <br /> Sample ID: 14493-02 Sample Type. ConWsite .A <br /> kn <br /> Sample Description: SP3+SP4 Composite11 <br /> Project Name: 4040 E. Maui ST. <br /> Datel ime Sampled. 3!6/2002 1:45:00 PM ,sample Matrix: Soil r' <br /> 00 <br /> ANALYTICAL RESULT ro O R <br /> - - Q.4/QCREPORT - <br /> Date LCS Spike .NIS Spike <br /> -Test Parameter Method DLR Unit Result f MIXed Blank Conc. LCSeio' Conte MSio MSD RSD <br /> __. <br /> Benzene EPA 82608 5 (Jglkg NO 0 Mar-02 ND....,..__,12.8._:_... 90.0% 13 97.1% 94.4% 0.7% <br /> Toluene EPA 8MB 5 ug/kg NO 08-Mar-02 NO. Y 12.8 90.0% 92,8" 10D.63L 100.0% fl.2°� <br /> ELh benzene EPA8260B 5 u91k9 Ftp Oq Ma <br /> : ... _ ...__:.:.,..._....:..:..•. .. r-02 ND 12.8 88.0% 12.8 109.4% 95.2% 3-5% <br /> rn,pXylene EPA 82606 5 u g ND 08-Mar-02 ND 25.8 87.5% 25.8 97.2% 97.7°,6 D_1°6 <br /> .....:. . ..... .....:.... <br /> o Xylene EPA 8260E 5 ug><cg._. . . . _ _.... <br /> :..: .. . .. NO <br /> 08-Mar-02 fV[} 12 8~ 89.5% 12.8 96.9% 980 98/96 0.3% <br /> 1.2•Drchloroethane-d4(Surrogate) %Recovery y.: .... ....._..,. ..v. .•...... .._ __..,,..... „ . ._ ...- � <br /> Ln <br /> 4.8F"Surrogate) %Recamry _.... B"% ......... ._ , .. . .._.., ----- ,_ _ . .... .... ... . . o <br /> ntg/1 =rnitligrtuns per Liter=ppnr RSD-reprraent relnlite percent different(RPD)betwee,r daplicuies spike of samples <br /> ugr'L=tvirrogroins per Liter=ppb or DnpMente of Srunpie <br /> SP ' T'FUL M ED, hlsa`kiSD-measure of the perrext recon=ery c£firienrles x ithis the ntrrtrit <br /> C=Conwarire G=Grub <br /> L C:S•-iii-ensure of the pet-cent r•ecoi•ery of llte Laboratory CoatryJ!Spike(LCS) <br /> l tat an Hao V.Le,Laboratory Director DLR-Detection Limit for the Fvrpo tv oj'Rrporrirrg. F_.reepiionn7 sr(mp(e <br /> rnrrrrices or ineerferowees may result in Aig/rer detection/units <br /> T <br /> D <br /> G) <br /> M <br /> W <br /> fiP.A-i"n�ivnmrtetttolPmtertionAgenryrliethari. SA4S'urrrdrvd.rrieihadfor�ztoninatiorroflYate,jyztefcnterl6rhf.'d. <br /> Page r of l <br /> 545 E. Cleveland St. Suite A Stockton, CA 95204 Tet.: (20J) 4,32-0892 Fax: (209) 452-7935 <br />