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1 <br /> CASTLE ANALYTICAL LABORATORY <br /> ' Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone (209)384-2930 <br /> Certificate#2480 Fax (209)384-1507 <br /> Advanced GeoEnvironmental Inc Client Project ID Rainwater Car Wash Sampled 11-12-02 <br /> ' of Northern California Reference Number 5220 Received 11-13-02 <br /> 837 Shaw Road Sample Description Water Extracted 11-16-02 <br /> Stockton, CA 95215 Sample Prep/Analysis Method EPA 5030/8015 8020 Analyzed 11-16-02 <br /> Attn Tim Cuellar Lab Numbers 5220-26W,27W,28W,29W 30W Reported 11-26-02 <br /> ' TOTAL PETROLEUM HYDROCARBONS -GASOLINE <br /> WITH BTEX DISTINCTION <br /> ' ANALYTE REPORTING LIMIT SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID <br /> MW 8B MW BC MW 8D MW 8E MW 8F <br /> 111202 111202 111202 111202 111202 <br /> (ug/L) (uglL) (ug/L) (ug/L) (uglL) (ug/L) <br /> BENZENE 050 ND ND ND ND ND <br /> ' TOLUENE 050 ND ND ND ND ND <br /> ETHYLBENZENE 050 ND ND ND ND ND <br /> TOTAL XYLENES 050 ND NO ND ND ND <br /> GASOLINE RANGE <br /> HYDROCARBONS 50 350 290 170 ND ND <br /> ' Report Limit Multiplication Factor 1 1 1 1 1 <br /> 1 <br /> t Surrogate°/D Recovery FID 943%1 PID 699% F11)95 7%1 PID 929% FID 971%1 PID 992% FID 919%7 PSD 969% FID 970%1 PID 1DD% <br /> Instrument ID VAR-GC1 VAR-GC1 VAR-GC1 VAR-GC1 VAR-GC1 <br /> ' Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> Practical Quantitation Limit=Reporting Limit x Report Limit Multiplication Factor <br /> I i <br /> 0 <br /> ANALYST APPROVED BY <br /> Clan J Cone Ja es Phillips <br /> ' w boratory Director <br /> I I <br />