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r <br /> IleCASTLE ANALYTICAL LABORATORY <br /> Environmental resting 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 Pacific Car Wash Sampled 12-31-01 <br />' of Northern California Reference Number 4327 Received 01-03-02 <br /> 837 Shaw Road Sample Description Water Extracted 01-10-02 <br /> Stockton CA 95215 Sample Prep/Analysts Method EPA 5030/8260 Analyzed 01-10-02 <br /> Attn Tim Cuellar Lab Numbers 4327-1W 2W,3W,4W, 5W Reported 01-14-02 <br /> GASOLINE ADDITIVES BY EPA METHOD 8260 GC/MS <br />' ANALYTE REPORTING SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID SAMPLE ID <br /> LIMIT MW 1 MW 2 MW 3 MW 4 MW 5 <br /> 123101 123101 123101 123101 123101 <br /> (pg/L) (ug/L (ug/L (ug/L (ug/L a IL <br /> FUEL OXYGENATES <br /> rMethyl tert-Butyl Ether(MTBE) 050 530 63 19 NO NO <br /> Di-isopropyl Ether (DIPE) 0,90 13 NO NO NO NO <br />' Ethyl tert-Butyl Ether (ETBE) 050 NO NO NO NO NO <br /> tert-Amyl Methyl Ether(TAME) 050 ND NO ND ND NO <br /> tert-Butanol(TBA) 20 NO NO ND NO NO <br /> VOLATILE HALOCARBONS <br /> 1,2-Dichloroethane (1,2-DCA) 050 210 16 NO NO NO <br /> Ethylene Dibromide (EDB) 050 NO ND ND NO NO <br /> Report Limit Multiplication Factor 25 25 20 1 1 <br /> �,.--gatc Roca.cr.as <br /> 12-Dichloroethane-l4 106% 102% 117% 120% 120% <br /> Toluene-d8 110% 113% 104% 104% 954% <br /> Instrument ID HP 5972MS <br /> Analytes reported as NO were not detected or below the Practical Quantttation Limit <br /> Practical Quantitation Limit=Reporting Limit x Report Limit Multiplication Factor <br /> (}ig/L)= micrograms per liter or parts per billion(ppb) <br /> 7 <br /> ANALYST APPROVED BY <br /> Clan J Cane Ja es C Phillips <br /> aboratory Director <br /> I <br />