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0 • <br /> PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANAL YSIS <br /> Friday,April 22, 2005 <br /> Attention: Rich Ryan <br /> Neil O.Anderson &Associate Report Page 8 of 17 <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> Volatile Organic Compounds by EPA Method 8260E <br /> Sample Information <br /> Sample ID: North Sample Type: Grab <br /> Laboratory ID: 5042114-03 Project Name. Stockton Jet Center <br /> DatelTime Sampled: 21-Apr-05 14.15 by Rich Ryan Sample Matrix. Soil <br /> Test Parameter Result DLR Unit Dilution Batch Pre ared Analysis Date Method Notes <br /> Acetone . ND 100 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 8260E <br /> tert-Butyl Acohol(TBA) ND 50.0 uglkg 1 AD52126 21-Apr-05 21-Apr-05 EPA 82608 <br /> Methyl tert-butyl'Ether(MtBE) ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 82608 <br /> Diisopropyl Ether(DIPS) ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 8260B <br /> Ethyl tert-Butyl Ether(ETRE) ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 82608 <br /> tent-Amyl Methyl Ether(TAME) ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 8260B <br /> Benzene ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-0S EPA 8260E <br /> Ethylbenzene ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 8260B <br /> Toluene ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 8260E <br /> m,p-Xylene ND 5.00 uglkg 1 AD52126 21-Apr-05 21-Apr-05 EPA 82608 <br /> a-Xylene . ND 5.00 ug/kg 1 AD52126 21-Apr-05 21-Apr-05 EPA 8260B <br /> Surrogate:Dibromofluoromethane 102% 80-120 <br /> Surrogate:Toluene-d8 96% 81-117 <br /> Surrogate:4-Bromofluorobenzene 101 % 74-121 <br /> �I <br /> i <br /> i <br /> milligrams per liter=ppm DLR-Detection Limit for Purpose of Reporting. <br /> I ugJL-micrograms per Liter=ppb Exceptional sample matrices or interferences may <br /> result to higher detection limits. <br /> RESPECTFULLY SUBMITTED, <br /> C-7 lotlre� <br /> Jonathan Le,Laboratory Director <br /> -I ,.T rar_— r ____ n..:+_. D 477-RI05 For: (209) 477-8148 <br />