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40, <br /> CERTIFICATE OFANAL YSIS <br /> Analytical Laboratory <br /> Tuesdp}', March 12,'2002 <br /> TO: William Little <br /> Advanced GeoEnviron mental <br /> 837 Shaw Road <br /> Stockton CA 95215 <br /> Oxygenated Compound by GCMS <br /> Sainple Information <br /> Sample ID: 14494-06A Sample Type: Grab <br /> Sample Description: Tank#3 South End Project Name: 4040 E.Main ST. ' <br /> Date/Time Sampled: 3/6/2002 3:10:00 PM Sample Matrix: Soil e <br /> ANALYTICAL RESULT QALOCREPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit ResultAn d one Conc.alyze Blank LCS% MS% MSD RSD <br /> ' <br /> Methyl t-Butyl Ether(MtBE) EPA 8260E 5 ug/kg ND 08-Mar-02 ND 12.8 112.5% 12.8 117.2% 117.2% 0.0% <br /> Di-isopropyl ether(RIPE)' EPA 8260B 5 ug/kg ND i OB iNar-02 ND 35 98.5% 35 82.9%° 82.9% 0.09'0 <br /> Ethyl-t-butyl ether(ETRE) EPA 82606 5 ug/kg NO 08-Mar-02 ND 35 98.3% 35 108.6% 108.6% 0.0% <br /> Tert-amyl methyl ether(TAME) EPA 82608 5 ug/kg ND 08-Mar-02 ND 35 95.7% 35 100.2% 103.3% 0.8%° <br /> t Butanol(TBA) EPA 8260E 100 ug/kg ND 08-Mar-02 ND 100 110.0% 100 88,0% 86.0% <br /> 1,2-Dichloroethane-d4(Surrogate) %Recovery 102% + <br /> 4-B FS-(Surrogate)' %Recovery 98 <br /> nti.'L —ntilligraas per Liter=ppm RSD represent relative percent r!t)ferern(RPD)beiiivcu d upheates spike of scrrnples <br /> ur Duplicate of Sample <br /> ug/l,=urlcrogrnms per Liter=ppb <br /> 7Joiathan <br /> C FUG TED, ��S;hiS'D-niPrr.nrre of the percent recovery,cflici(:ncics within the'nirttrir <br /> C:'=Composite G=C,rrrls <br /> LCIS-rnc'asure of the percent recovery of the Laboralary Control Spike(LCS) <br /> DLR-Delection Limit for the Purpose of Reporting. EA-ceptional sample <br /> HaU i, Le, Laboratory.Director nroirices a intetfereueca. may re_srilt in higher detection limits <br /> ,t <br /> EPA-Enyironnic'tutrl Protection;Igen(y Method. SAf Strtndnrrl:4tethod Joe Examination of!'Yater I'astewater•18th fart. Pulte 1 of 1 <br /> 545 E. Cleveland St. Suite A Stockton, CA 95204 Tel.: (209) 462-0892 Fax: (209) 462-7935 <br />