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CASTLE ANALYTICAL LABORATORY <br /> Environmental TestingServices <br /> 2333 Shuttle Drive, Atwater, CA 95301 Phone: 1209) 384-2930 <br /> Certificate x'2079 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 503018015M, 8020 Analyzed: See Below <br /> Tim Cuellar Lab Numbers: 2331-11 S, 12S, 135 <br /> Attn: Reported: 7-6-99 <br /> TOTAL PETROLEUM HYDROCARBONS -GASOLINE <br /> WITH BTEX DISTINCTION <br /> ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID <br /> ' P8-55 P9-25 P9-30 <br /> {mg/kg) (mg/kg) {mg/kg} (mg/kg) <br /> MTBE 0.010 ND ND ND <br /> BENZENE 0.0050 ND ND ND <br /> TOLUENE 0.0050 ND ND ND <br /> ETHYL BENZENE 0.0050 ND ND ND <br /> TOTAL XYLENES 0.0050 ND ND ND <br /> GASOLINE RANGE 1.0 TVD ND ND <br /> ' HYDROCARBONS <br /> Report Limit Multiplication Factor: 1 1 1 <br />.' Date analyzed: 6-28-99 6-28-99 6-30-99 <br />' Surrogate % Recovery: RD-58.1%IPO-58.1% PID.62.6%IPIp.63.4% FID-56.4%J f16.56.6% <br /> Instrument ID: VAR-GC1 VAR-GC1 VAR-GC1 <br /> Analytes reportedas`ND were not detected or below the Practical Quantitation Limit <br /> Practical Quantitation Limit = Reporting Limit x Report Limit Multiplication Factor <br /> 1 <br /> i <br /> ANALYST: APPROVED BY: <br /> Clary J. Cone Ja e C. Phillips <br /> 1 Laboratory Director <br />