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I = = = e_ <br /> MICU" 0OIN <br /> E1� o CERTIFICATE OF ANALYSIS Inll�]0 G�Co�n t�C�,C�1 <br /> a Analytical L-af- a tory Saturday,January 01,2000 <br />> TO William Little <br /> 3 Advanced Geo€nvironmental, <br /> 4005 N Wilson Way <br /> Rh l <br /> Ca 95205 <br /> Stockton, <br /> Saniple Information <br /> Sample ID- PE6790-04 Sample Type. Grab <br /> Sample Description. MW-213(Monitoring Well#2B) Project Nante, Denis Auto Repair <br /> r s Date/Time Sampled: 12/30/1499 2 45 00 PM Sample Matrix. Ground Water <br /> `y ANALYTICAL RESULT QA/QCREPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Analyzed Blank Conc. LCS% Conc. MS% MSD RSD <br /> j? TPH-Gasohne EPA 8015M/DHS 50 ug1L 4240 03-Jan-00 ND 500 980% 500 1060% 1020% 10% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 05 ug1L 454 03-Jan-00 ND 80 975% 80 102 5% 1063% 09% <br /> Dilsopropyl ether(DIPE) EPA8260 05 ug/L 26 03-Jan-00 ND 40 1020% 40 1050% 1050% 00% <br /> Ethyl-t-butyl ether(ETBE) EPA8260 05 uglL 131 03-Jan-00 ND 40 959% 40 959% 973% 04% <br /> '" Tert-amyl methyl ether(TAME) EPA8260 05 uglL 202 03-Jan-0O ND 70 105 6% 70 110 9°� 105 8% 1 2°� <br /> - t-Butanol(TBA} EPA8260 0 5 ug1L ND 03-Jan-00 ND 40 1050% 40 112 5% 1100% 06% <br /> e <br /> "1 Benzene EPA 8260 05 ug1L 220 03-Jan-00 ND 80 1123% 80 1150% 1143% 02% <br /> Toluene EPA 8260 05 ug1L 86 03-Jan-00 ND 40 970% 40 1013% 1000% 03% <br /> I <br /> Ethylbenzene EPA 8260 0 5 ug/L 420 03-Jan-00 ND 40 966% 40 1060% 1060% 00% <br /> Xylene(Total) EPA 8260 05 ug/L 648 03-Jan-00 ND 80 1014% 80 1101% 1103% 00% <br /> mg/l =milligrams per Luer=ppm Df R-Detection Lunit for[lie Purpose of Reporting RSD-represent relative percent different(RPD)behi een duplicates spike of samples <br /> iug/L =micrograms per Luer=ppb Exceptional saarple matr ices or interferences mai result in or Duplicate of Sample <br /> higher dclecnon limits USIAf4D-nreasure of the percent recovery efficiencies within the matrix <br /> i C =Composite G =Grab <br /> F; l CS measure of fire percent recovery of the Laboratory Control Spike(LCS} <br /> ht' S <br /> RES TF LLY ITTED, <br /> Joiff than Hao V Le, Laboratory Director <br /> rv� <br /> h <br /> '- t Pmrl-Fironniental Protection 4gency Afethod Page l Of 1 <br /> SAI Standard Atelliod for F rainirralion of li'ater li osicu aler 1 Sth Ed <br /> 545 E Cleveland St Suite A Stockton, CA 95204 Tel (209) 462-0892 Fax (209) 462-7935 <br />