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r a19 Strike A-enue. Suite 8 <br /> Sacramento.CA 95834 <br /> a- )- Sequoia (916)921-9600 <br /> 4 <br /> FAX(9I6)921-0100 <br /> Analytical vrwwsequolalabs.com <br /> Project: ARCO 4493,Stockton,CA Sampled' 9119100 <br /> BCOR International-Rancho CordovaReceived: 9120100 <br /> 017 Kilgore Road.Suite 100 Project Number_ NIA <br /> So R owed: 1019/00 <br />.ancho Cordova,CA 95670 Pro e t M er' Risly Benk2S <br /> Total Purgeable Hy4rocarbclns(C6=ClZ),BTEX and MTHE;;by D1IS;ZUFT/Qual'ity,Coatroi. <br /> Sequoia Anarlytical-Sacrame»to <br /> Date Spike Sample QC Reporting Limit Reco%'. RPD itPD <br /> knalyte Analyzed Level Result. Result Units Recov.Limits % Limit % Notes* <br /> Watch• 0100 Date Pre aced. 1012/00 Extraction Method: � �►5030 Me41I <br /> iBlank 0100003-EM 50.0 <br />?urgeable Hydrocarbons 1412100 ND ugll <br /> - ND 0.500 <br /> Benzene ND 0500 <br /> Ioluenc ND - 0,500 <br /> Ethylbenzcac ND 0500 <br /> Xvlcnes(total) ND 2.50 <br /> Meda,tort-butvl ether 60.0-140 94.8 <br /> Surrogate: a,a,a-7rifluorofotuene 10.0 9.48 <br /> LICg 0100003-ES1 <br /> Bmy�1e 10/2/0fl 10.0 9.46 ugll 74.0-130 94.6 <br /> 9.75 70.0-130 47.5 <br />'Toluene 10.0 <br /> 7-7 <br /> wx (=t=,t <br /> 10.0 9.85 MO-130 98.5 <br /> ) 300 103 70.0-130 103 <br /> 10.0 10.3 70.0-130 103 <br /> Methyl cert-butyl ether 60.0-140 93.9 <br /> Surrogate: a.a,a-7'rffiuororoluene 10.0 939 <br /> Mitritc Spike 0100003-MSI 5009268-0 <br /> Benzene - 10/2/00 10.0 0.939 11.0 U94 60.0-140 i01 <br /> " 10.0 ND 8.97 60,0-140 89.7 <br /> Toluene <br /> Toluene ne 10.0 ND 10-2 K 60.0-140 102 <br /> Kylcrus(total) " 30.0 NO 30.2 60.0-140 101 <br /> Medryl[ut,"I Ober - 10.0 ND 12.3 60.0-140 123 <br /> siurogats: a�a-dao 10.4 9.91 60 0-140 99.1 <br /> MLatrIxS ikeDu 0100003-MSD1 <br /> ff 108100 10.0 0.939 11.2 ttg11 60.0-140 1.5 25.0 1.96 <br /> Sta <br /> Toltt�c 10.0 ND 9.15 60.0-140 91S 25.0 199 <br /> EthY - 10.0 ND 10.4 60.0-140 104 25.0 194 <br /> 30.0 ND 30.6 60-0-140 102 25.0 0985 <br /> Xyk=« 60.()-140 ND 17-7 <br /> 60.0-140 127 25.0 3.20 - <br /> Meth 1 vert-butyl ether - aoo-lea 99.0 <br /> Surrogate: a,4a-7Wfluorotoluene 10-0 9.90 <br /> Saori: 0100021 Dstte Prepare�14/3N0 <br /> gxtr•*ction Method- ITA 5MB Ole-0-ID <br /> E nk 0IMI-BLKI <br /> PuzZeable Hydrocarbons 10/3100ND ND ug/L 50A - <br /> 0.500- <br /> Benzerte ND " 0.500 <br /> Toluene ND 0.500 <br /> Ethylbenzenc - ND " 0.500 <br /> xlik,ues(total) � �� 2,50 <br /> JW tut-butyl ether ND <br /> Sequoia Analytical-Sacramento <br /> •Refer to end of report for text of notes and definitions. <br /> �# page 18 of 23 <br /> t78/81 'd ` Dti5iuI0f1O3S Wd92:2T 00. 60 1D0 <br />