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i - 1 1• A, _ <br /> l <br /> CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone (209)384-2930 <br /> Certificate No 2480 Fax (209)384-1507 <br /> ' Advanced GeoEnvironmental,Inc Client Project ID Rainwater Car Wash Sampled See Below <br /> of Northern California Reference Number 5218 Received 11-12-02 <br /> 837 Shaw Road Sample Description Water Extracted 11-14-02 <br /> Stockton, CA 95215 Sample Prep/Analysis Method EPA 5030/8260 Analyzed 11-14-02 <br /> ' Attn Tim Cuellar Lab Numbers 5218-11W, 12W, 13W, 14W Reported 11-26-02 <br /> ' GASOLINE ADDITIVES BY EPA METHOD 8260 GCIMS <br /> ANALYTE REPORTING SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID <br /> LIMIT MW 9E Influent Effluent GAC-2 <br /> 11-10-02 11-11-02 11-11-02 11-11-02 <br /> (pg/L) (u /L) - AU914- u L) (uSIL) <br /> FUEL OXYGENATES <br /> Methyl tert-Butyl Ether(MTBE) 050 NO 12000 NO 15 <br /> Di-isopropyl Ether (DIPS) 050 ND ND ND NO <br /> Ethyl tert-Butyl Ether (ETRE) 050 NO NO ND NO <br /> tart-Amyl Methyl Ether(TAME) 050 NO 170 NO ND <br /> tert-Butanol(TBA) 20 ND ND NO NO <br /> ' VOLATILE HALOCARBONS <br /> ' 1,2-Dichloroethane (1,2-DCA) 050 NO NO NO NO <br /> Ethylene Dibromide (EDB) 050 NO NO ND NO <br /> Report Limit Multiplication Factor 1 20' 1 1 <br /> Repan Limit Multiplication Factor for MTBE 500 <br /> Date Sampled 11-10-02 11-11-02 11-11-02 11-11-02 <br /> ' -Report limit raised due to matrix interference <br /> Surrogate Recovenes <br /> ' 1,2-Dichloroethane-d4 884% 988% 890% 893% <br /> Toluene-d8 100% 967% 992% 953% <br /> Instrument ID HP 5972 MS <br /> Analytes reported as NO were not detected or below the Practical Quantitation Limit <br /> Practical Quantitation Limit=Reporting Limit x Report Limit Multiplication Factor <br /> (Ng/L)= micrograms per liter or parts per billion(ppb) <br /> ' ANALYST �^ � APPROVED BY I <br /> Clan J Cane Ja s hrllrps <br /> Le6boratory Director <br /> i <br /> i <br />