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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 Cal Fuels Sampled 6-16-97 <br /> of Northern California Reference Number 1151 Received 6-18 97 <br /> 1803 West March Lane, Suite A Sample Description Soil Extracted 6-19-97 <br /> Stockton, CA 95207 Sample Prep/Analysis Method EPA 5030/8015M, 8020 Analyzed 6-19-97 <br /> Attn Tim Cuellar Lab Numbers 1151-1 S, 2S, 3S, 4S, 5S Reported 624-97 <br /> TOTAL PETROLEUM HYDROCARBONS -GASOLINE <br /> WITH BTEX DISTINCTION <br /> ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID <br /> VW-1 @ 20 VW-1 @ 30 VW-1 @ 35 VW-2 @20 VW-2 @ 30 <br /> (mg/kg) (mg/kg) fmg/kg) (mg/kg) (mg/kg) (mg/kg) <br /> MTBE 0 010 ND ND ND ND ND <br /> BENZENE 00050 00054 092 2 9 ND 0 63 <br /> TOLUENE 00050 0 029 so 8 1 290 14 <br /> ETHYL BENZENE 00050 0 036 1 9 1 0 120 32 <br /> I TOTAL XYLENES 00050 029 9 6 47 580 15 <br /> ilii GASOLINE RANGE <br /> I HYDROCARBONS 1 0 ND 95 50 6600 180 <br /> I Report Limit Multiplication Factor 45 20 20 1000 20 <br /> I <br /> 1 <br /> F <br /> Surrogate % Recovery FID 84 4%f PID 82 7% NA NA NA NA <br /> Instrument ID VAR-GC1 VAR-GC1 VAR-GC1 VAR-GC1 VAR GC1 <br /> I Practical Quantitation Limit = Reporting Limit x Report Limit Multiplication Factor <br /> 11 Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> ANALYST APPROVED BY <br /> Clary&JCone J es C Phillips <br /> Znveronmental Lab Director <br />