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s (� <br /> r <br /> zY CERTIFICATE OF ANALYSIS <br /> Analytical Laboratory <br /> f Saturday,lattuary 01,1000 <br /> a ; <br /> TO William Little <br /> t Advanced GeoEnvlronmental, <br /> r 4005 N Wilson Way <br /> `I Stockton, Ca 95205 <br /> x � <br />.S <br /> 4 <br /> Saniple Information <br /> Sample ID PE6790-02 Sample Type. Grab <br /> Sample Description- MW-1B(Monitoring Well 9 1B) Project Name Denis Auto Repair <br /> s DatelTime Sampled, 12/30/1999 2 55 00 PM Sample Matrix Ground Water <br /> — 4 <br /> ANALYTICAL RESULT QAIQC REPORT <br /> Date LCS Spike MS Spike <br /> f Test Parameter Method DLR Unit Result Analyzed Blank Cone. LCS% Conc. MS% MSD RSD <br /> t <br /> j TPH-Gasoline EPA 8015M/DHS 50 ug/L 830 03-Jan-00 ND 500 980% 500 1060% 1020% 10% <br /> y r Methyl t-Butyl Ether(MtBE) EPA8260 05 ug/L 15 03-Jan-00 ND 80 975% 80 1025% 1063% 09% <br /> Ftp > <br /> Diisopropyl ether(DIPE) EPA8260 05 ug/L 0 500 03-Jan-00 NO 40 1020% 40 1050% 1050% 00% <br />'s Ethyl-t-butyl ether(ETRE) EPA8260 05 ug/L ND 03-Jan-00 NO 40 959% 40 959% 973% 04% <br /> ;z Tertamyl methyl ether(TAME) EPA8260 05 ug/L 136 03-Jan-00 NO 70 1056% 70 1109% 1058% 12% <br /> i-Butanol(TBA) EPA8260 06 ug/L ND 03-Jan-00 NO 40 1050% 40 1125% 1100% 06% <br /> Benzene EPA 8260 0 5 ug/L 140 03-Jan-00 ND 80 1123% 80 1150% 1143% 02% <br /> F <br /> r Toluene EPA 8260 05 ug/L 056 03-Jan-00 NO 40 970% 40 1013% 1000% 03% <br /> Ethylbenzene EPA 8260 0 5 ug/L 1 0 03-Jan-00 ND 40 966% 40 1060% 1060% 00% <br /> .x Xylene(Total) EPA 8260 05 ug/L 1 50 03-Jan-00 NO 80 1014% 80 1101% 1103% 00% <br /> mg/L=nnflrgrams per Liter=ppm DLR-Detection Lrnrrt for the Purpose of Reporting RSD-represent relative percent different(RPD)hehieen duplicates spike of samples <br /> y Exceptional sear le inairrces or inter ereneces ma residt in or Dir tlrcale o Sam tle <br /> ug/L =microgram per Liter=ppb 1 p .f 3 ! .� 1 <br /> r�p C=Composite G=Grab higher detection!mints AIS/MSD-measure of lite percent recovery efficiencies within tire malrrx <br /> I CS measure of the percent recovery of the Lahoratory Control Spike(LCS) <br /> WRESPCTULL Y MI ED, <br /> n V Le, Laboratory Director <br /> a <br /> a LPA-Environmental Protection Agerncy Method Page 1 of I <br /> � SAI-Standard Alethodfor LrnnunahC <br /> on 5451 Il'�ieV2�i ltdp t Suite A Stockton, CA 95204 Tel (209) 462-0892 Fax (209) 462-7936 <br /> { cF <br />