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i <br /> i <br /> i CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services P 0 Box 1360, Winton, CA 95388 Phone {209] 384 2930 <br /> Certificate #2079 Fax 1209) 384-1507 <br /> I Advanced GeoEnvaonmental, Inc Client Project ID Joe s Truck Stop Sampled See Below <br /> of Northern California Reference Number 990 Received 1-16-97 <br /> 1803 West March Lane, Suite A Sample Description Soil Extracted 1-16 97 <br /> Stockton, CA 95207 Sample Prep/Analysis Method EPA 5030/8015M 8020 Analyzed 1-16-97 <br /> Attn Kevin McKibben Lab Numbers 990 3S, 4S, 5S, 6S Reported 1-17-97 <br /> TOTAL PETROLEUM HYDROCARBONS - GASOLINE RANGE <br /> WITH BTEX DISTINCTION <br /> ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID <br /> B4 6 B5 6 66-6 B7-6 <br /> (mg/kg) (mg/kg) ;mg/kg) (mg/kg) (mg/kg) <br /> IMTBE 00050 ND ND ND ND <br /> BENZENE 00050 ND ND ND ND <br /> TOLUENE 00050 ND ND ND ND <br /> ETHYL BENZENE 00050 ND ND ND ND <br /> ITOTAL XYLENES 00050 ND ND ND ND <br /> GASOLINE RANGE <br /> HYDROCARBONS 10 ND ND ND ND <br /> Report Lamlt Multiplication Factor 1 1 1 1 <br /> IDate Sampled 1-14-97 1-1497 1-15 97 1 15-97 <br /> Surrogate % Recovery FID 76 7%1 PVD 76 9% FID 80 8%1 PID 81 6% FID 94 2%1 PID 94 9% FID 84 6%!PID 80 7% <br /> Instrument ID VAR-GC1 VAR GC1 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 /> I <br /> ANALYST APPROVED BY <br /> Clare J Cone es C PhImps <br /> Environmental Lab Director <br /> I <br />