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OF <br /> " Analytical Laboratory <br /> di <br /> CERTIFICATE OFANALYSIS <br /> TO William Little Friday, October 01, 1999 <br /> Advanced Geo Environmental <br /> 4005 N Wilson Way <br /> Stockton, CA 95205 <br /> San ple Information <br /> Sa►itple ID PE6017-06 Sample Type Grab <br /> Sample Description MW-3B/9123199 Project Name Den's Auto Repair <br /> DatelTsnie Sampled 9122199 2 25 00 PM n v nv p YV ry k v v Sample Matrix Ground Water <br /> If 7 ' ANALYTICAL RESULT QA/QCREPORT <br /> Date LCS Spike Y MS Spike <br /> }Test Parameter Method DLR Unit Result Analyzed Blank Cone LCS% Cone- MS% MSD RSD <br /> nx n vv n ri vwv n v n kw ry r, vrvvn v� n n k nvry r, <br /> t TPH-Gasoline EPA8015MIDHS 50 ugiL 990 25-Sep-99 ND 500 9600/0 k 500 1040% 1070°/6 0796M <br /> Methyl t-ButylEther IMtBE) Y EPA8260 05 uglL V NDn 25-Sep-99 ND 20~ v 9000/0 hh20 n 1100% v 135096 nµ }}51% <br /> n x wv v M r v. v.v vry ♦ n .. nv n 1 v A + v v,+nw.v. x. v t.y r,n n n vnVM Yh4,k 4- Y+v nti(.v,+nw.+rvp r ,.,,y,vy� <br /> Y�x Drisopropyl ether(D1PE) A 1 EPA8280 v vn 05 uglL .. A NO 25-Sep-99 ND v 20 950%� w 20 t 1100% 95096 3 7% ZQ <br /> Ethyl-t-butyl ether(ETRE) EPA8280 05 uglL NO 25-Sep-99 v ND 20 975%x 20 T 11000/0 1011 <br /> 096 1t2% Rg <br /> , . . , .. ,. r <br /> 1 Tert-amyl methyl ether(TAME) EPA8260 05� ,u4W ry ND 25-Sep-99 vL�ND n 187 Y107�0%n 20 A95096� x 9D 0% V n1n4%� <br /> <t-Butanol(TBA) Y vv EPA826D 05 n ~ug/L NOf t „ 25-Sep-99 f ND try 20 1000% f} tn20 Yn„ 90096 875%..,�,, 0, <br /> Y nv Vv ugL .,n x Vv ' 5Se99A Vn , v,iO vn� 100 . '* - -105 % 100PA820 05 20 �r�hw0Benzene <br /> R ~ ~ <br /> Toluene h EPA 8260 05 ug/L 10 25-Sep-99 ND v * v V V 21 95 2% 20 875% 11000/0 4 R 5 7%tt.n <br /> Ethylbenzene x EPA 8260 05 ug1L Y f t f,n 60 '4 h25-Sep-99 NDn 20 10500/0 20 n 11001A 125 096 u ~3 2-A <br /> ev h <br /> Xylene(Total)n f 4 EPA 8260}� 05 uglL 90 A 25-Sep-99 ND 50 f 4 vLh930% A50 1200% 110 Mo n 22%}t <br /> v. v v k <br /> v .. ry . v .,. <br /> ntg/L-nulhgranrs per Luer =ppm TJLR-Detection Lrnut for the Prrrporery ofReporliirg Fxceptional RSD-represent relatrre percent,. d�erent.. (R,...PD)between duplicates spike ofsamples <br /> ug/L=nnrciagranis per Lrler =ppb sample matrices or rrueifererreces may result in higher detection of Duplicate ofSantple <br /> C=Composite G=cra <br /> limas �IIS/AISD-ineasure ofthe Pe1 cent necoi e ry efficiencies within lire mainx <br /> b <br /> LCS measure of the perrent rccover v ofthe Laboratory Cantr of Spike(LCS) <br /> 7EETLILLY ITED, <br /> Hao V Le, Laboratory Director <br /> x <br /> rte <br /> y EPd-Fu+rroruiterntalProlectroii 4gencyAfethod Page 1 of 1 <br /> 3 s►rstardardAlethid/arlsrarrrnrrnranarjr�rra ��$r��d�f Suite A Stockton, CA 95204 Tel (209) 462-0892 Fax (209) 462-7935 <br /> I�E <br />