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I <br /> S CASTLE ANALYTICAL LABORATORY <br />' Environmental Testing Services 2333 Shuttle Drive, Atwater, CA 95301 Phone 12091 384-2930 <br /> Certificate #2079 <br /> Fax (209) 384-1507 <br />' Advanced GeoEnvironmental, Inc Client Project ID Cal Fuels Sampled See Below <br /> of Northern California Reference Number 1151 Received 6-18 97 <br /> 1803 West March Lane, Suite A Sample Description Sod Extracted 6-19 97 <br /> Stockton, CA 95207 Sample Prep/Analysis Method EPA 5030/8015M, 8020 Analyzed 6-20-97 <br /> Attn Tim Cuellar Lab Numbers 1151 6S, 7S, 8S, 9S, 1 OS Reported 6-24-97 <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-2 @ 35 MW-5 @ 30 MW 5 @ 40 MW6 - 30 MW6 -40 <br /> (mg/kg) (mg/kgl (mg/kg) (mg/kg) (mg/kg) (mg/kg) <br />' MTBE 00100 ND ND ND ND ND <br /> BENZENE 00050 E 1 ND ND 0 61 062 <br /> TOLUENE 00050 17 ND ND ND ND <br /> ETHYL BENZENE 00050 46 ND ND 020 0 066 <br /> 1• TOTAL XYLENES 00050 21 ND ND 037 0 027 <br /> GASOLINE RANGE <br />' HYDROCARBONS 1 0 250 ND ND 24 32 <br /> Report Limit Multiplication Factor 100 1 1 10 1 <br />' Date Sampled 6 16 97 6-16-97 6-1697 6-17-97 6-17-97 <br /> 1 <br /> Surrogate % Recovery NA FID 84 7%1 PID 64 4% FID 88 t%!Plb 88 2% NA FID 83 6%1 PID 78 1% <br /> Instrument ID VAR GC1 VAR GC1 VAR-GCI VAR-GC1 VAR-GC1 <br />' Practical Quantitation Limit = Reporting Limit x Report Limit Multiplication Factor <br /> Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> ANALYST ! b/�Y APPROVED BY <br />' Clan J Cone Ja'pWs C Phillips <br /> nvrronmental Lab Director <br />