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CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone: (209)384-2930 <br /> Certificate#2079 Fax: (209)384-1507 <br /> Advanced GeoEnvironmental, Inc. Client Project ID: National Freight Inc. Sampled:8-23-00 <br /> of Northern California Reference Number:3178 Received: 8-25-00 <br /> 4005 North Wilson Way Sample Description:Water Extracted: 8-28-00 <br /> Stockton, CA 95205 Sample PreplAnalysis Method: EPA 503018015, 8020 Analyzed: 8-28-00 <br /> Attn:Tim Cuellar Lab Numbers:3178-1W,2W, 3W Reported: 9-7-00 <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 /> 08-23-00 08-23-00 08-23-00 <br /> (ug/L) (uglL) (ug/L) (ug/L) <br /> MTBE 0.50 ND ND ND <br /> BENZENE 0.50 ND ND ND <br /> TOLUENE 0.50 ND ND ND <br /> ETHYL BENZENE 0.50 17 ND ND <br /> TOTAL XYLENES 0.50 120 ND ND <br /> GASOLINE RANGE <br /> HYDROCARBONS 50 5700 ND ND <br /> Report Limit Multip€ication Factor: 20 1 1 <br /> Surrogate%Recovery: FID:111%l PID 919% FID 424%I PID;88.4% FID:88.4%1 PID:83.7% <br /> Instrument ID: VAR-GC1 VAR-GC1 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 /> Ir <br /> ANALYST: APPROVED BY: <br /> Clari J. Cone m s C. Philips <br /> _ Environmental Lab Director <br />