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,. CASTLE ANALYTICAL LABORATORY <br /> Environmental TestingServices <br /> 2333 Shuttle Drive,Atwater,CA 95341- Phone: (208)384-2930 <br /> Certificate#1-2480 Fax: (209)384-1507 <br /> Advanced GeoEnvironmental,Inc. Client Project ID: Grewals Market Sampled: 12-18-01 <br /> of Northern California Reference Number:4300 Received: 12-19-01 <br /> 837 Shaw Road Sample Description:Water Extracted: 12-20-01 <br /> Stockton, CA 95215 Sample PreplAnaiysis Method: EPA 503018015,8020 Analyzed: 12-20-01 <br /> Attn:Tim Cuellar Lab Numbers:4300-1W,2W,3W Reported: 1-2-01 <br /> 1 <br /> TOTAL PETROLEUM HYDROCARBONS -GASOLINE <br /> WITH BTEX DISTINCTION <br /> ' ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID <br /> MW 1 MW 2 MW 3 <br /> 121801 121801 121801 <br /> ' (ug/L) (ug1L) (ug1L) (ug/L) <br /> MTBE 0.50 0.66 3.2 ND <br /> BENZENE 0.50 NO ND ND <br /> TOLUENE 0.50 NO NO ND <br /> ETHYL BENZENE 0.50 ND ND ND <br /> lie TOTAL XYLENES 0.50 NO ND NO <br /> GASOLINE RANGE <br /> HYDROCARBONS 50 ND NO NO <br /> Report Limit Multiplication Factor: 1 1 1 <br /> r <br /> Surrogate%Recovery: F1D:94A%/P1D:95.4% F10192.7%1 P10:97.9% FID:90.5%7P1D:91.7% <br /> Instrument ID: VAR-GC1 VAR-(3C1 VAR-GC1 <br /> Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> Practical Quantitation Limit=Reporting Limit x Report Limit Multiplication Factor <br /> ;aboratory <br /> ANALYST: APPROVEDClare J. Cone lipsrector <br /> 1 <br />