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i. <br /> CASTLE ANALYTICAL LABORATORY <br /> f Environmental Testing Services 2333 Shuttle Drive, Atwater, CA 95307 Phone: (209) 384=2930 <br /> Certificate #2079 <br /> Fax: (209) 384-1507 <br /> ' Advanced GeoEnvironmental, Inc. Client Project ID: Grewals Market Sampled: 6-21-99 <br /> of Northern California Reference Number: 2331 Received: 6.24-99 <br /> 4005 North Wilson Way Sample Description: Soil Extracted: 6-23-99 <br /> Stockton, CA 95205 Sample Prep/Analysis Method: EPA 5030/801 5M, 8020 Analyzed: 6-28-99 <br /> Attn: Tim Cuellar Lab Numbers: 2331-15, 2S, 3S, 4S, 5S Reported: 7-6-99 <br /> TOTAL PETROLEUM HYDROCARBONS -GASOLINE <br /> WITH BTEX DISTINCTION <br />,1 <br /> ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE 1D <br /> ' P6-15 P6-30 P6-40 P7-20 P7-30 <br /> (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mglkg} <br /> MTBE 0.010 ND ND' 0.019 ND ND <br /> BENZENE 0.0050 ND ND 0.0068 ND ND <br /> TOLUENE 0.0050 ND ND ND ND ND <br /> ETHYL BENZENE 0.0050 ND ND 0.0082 ND ND <br /> TOTAL XYLENES 0.0050 ND ND ND ND ND <br /> 1 <br /> GASOLINE RANGE 1.0 ND ND ND ND ND <br /> HYDROCARBONS <br />' Report Limit Multiplication Factor: 1 1 1 1 1 <br /> Surrogate % Recovery; F1469.0%l PID-66-4% FID-69.3%l PID-69.6% FID-57,1%1 PiJ)-55.5% FID-72.2%7 PID-72.2% Flo-76.6/N>_76.5% <br /> Instrument ID: VAR-GC1 VAR-GC1 VAR-GC1 VAR-GC1 VAR-GC1 <br /> Analytes reported as ND were not detected or'betdvu the Practical Quantitation limit - <br /> Practical Quantitation Limit = Reporting Limit x Report Limit Multiplication Factor <br /> ANALYST: APPROVED BY: Com- i <br /> Clari J. Cone Ja s C. Phillips <br />' aborarory Director <br />