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CERTIFICATE OF ANALYSIS <br /> Arralyt�ca/ Laboratory rt,e.,rraY,March Iz,znnz <br /> TO: William Little <br /> Advanced GeoEnvironmental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Aromatic Compound in Gasoline by GC/MS <br /> Sample Information <br /> Sample ID:,14494-03 Sample Type: Grab <br /> Sample Description: Tank#2 North End Project Name: 4040 E.Main ST, <br /> Date/Time'Sampled: 3/6/2002 3:40:00 PM Sample Matrix: Soil <br /> ANALYTICAL RESULT QAIQCR.EPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method p MS/o MSD XS <br /> DI <br /> es DLR Uig �NDIt A08-Feb-02 NDnk 2 8nc 90 0/' C13 97.1% <br /> 94.4/0 <br /> Benzene EPA 82608 5 u ° ° , _ <br /> ND 08 Feb-02 ND 12 8 90.0% 12.8 100,6% 100.0% 0, ,%Toluene EPA 82608 5 ug/kg ° <br /> Ethyibenzene EPA 82608 5 ug/kg 13 08-Feb-02 ND 12.8 88.0% 12.8 109.4% <br /> - 17 08-Feb-02 N,.. <br /> m p Xylene EPA B260Bug/kg ....• . .,.. .�.._ , . ... . _. .. _ :. : <br /> :..a...,,.. <.,,:_,,„,- r..F_,. . ,.,�Aw,,.--, �•,;..,,.:, ...,,.,.. 5 .5% 25.6 97.2% 97.7% 0.1% ' <br /> o Xylene EPA 82608 5 ug/kg ND, 08-Mar-02 ND x-W 12,8 89.5% 12.8 96.9% 98.0% 0.3% <br /> 4 1,2-Dichl f •. �... M . -,. <br /> U <br /> oroethane{i4(Surrogate} %Recovery gg%; ' <br /> 4-BFB-(Surrogate) _,: .. - :...0 ...._.. _. •b, <br /> %Recovery 94% <br /> ntgrL -milligrams per Liter=ppm RSD represent relative percem dgferem(RPD)betu'eetl duphcaies spike of samples <br /> onaia�nHao <br /> FUL TIED, ug/L=rrric'rngrnnu per Liter=ppb <br /> or Dutplicaie of Sample <br /> 6IS/,MSD-mensure of the percent r•ecovery L�fficiencies•within the nuttri.3' <br /> C=Composite G=Grab <br /> LGS-measure ofahepercent recovery ofthe Lahoratoty C:onlrol Spike(LC:S) <br /> ii: Le, Laboratoq Director DLR-Deteeiio)t Limit far the Pappose of Rrporcitug. Exceptional sample <br /> tnatr-ices ar intetfiereneces may result in higher detection linrits <br /> f. <br /> .t-_nvironwc'ntal Protection:fgency Alethod. SrI�I-.S'trrndrad.hlethud fa•Is.rrtrxinatinn of fbiuter YF rt,steti+rater 181/1 E;1-- <br /> Pa <br /> 545 E. Cleveland St. Suite A Stockton, CA 95204 Tel.: (209) 462-0892 Fax: (209) 462-7935 <br />