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' 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 08-16-02 <br /> of Northern California Reference Number 4987 Received 08-20-02 <br /> 837 Shaw Road Sample Description water Extracted 08-23-02 <br /> Stockton CA 95215 Sample Prep/Analysis Method EPA 5030/8260 Analyzed 08-23-02 <br /> Attn Tim Cuellar Lab Number 4987-2W Reported 08-28-02 <br /> Client Sample ID MW 3 08-16-02 <br /> ' VOLATILE ORGANICS - EPA METHOD 8260 GCIMS <br /> REPORTING, SAMPLE REPORTING SAMPLE <br /> ANALYTE LIMIT* RESULT ANALYTE LIMIT* RESULT <br /> ' !L ( IL) !L !L <br /> Benzene 0 50 NO 1,3-Dichloro ro ane 0 50 ND <br /> Bromobenzene 0 50 ND 2,2-Dichloro ro ane 0 50 ND <br /> Bromochloromethane 0 50 ND 1 1-Dichloro ra ene 0 5o NO <br /> ' Bromodichloromethane 0 50 NO cis-1 3-Dichloro ro ene 0 50 ND <br /> Bromoform 0 50 ND trans-1,3-Dichloro ro ene 050 ND <br /> Bromomethane 0 50 ND Eth (benzene 050 ND <br /> n-Buk !benzene 0 50 ND Hexachlorobutadiene 050 ND <br /> ' sec-But (benzene 0 50 NO Isopropylbenzene 0 50 ND <br /> Cert-But (benzene 0 50 ND p-Isopropyltolvene 050 NO <br /> Carbon tetrachloride 050 NO Methylene chloride 0 50 ND <br /> Chlorobenzene 050 ND Methyl tert-But I Ether MTBE 0 50 960 <br /> ' Chlorodibromomethane 050 ND Na thalene 050 ND <br /> Chloroethane 0 50 ND n-Propylbenzene 050 ND <br /> Chloroform 0 50 ND Styrene 050 ND <br /> . Chloromethane 0 50 ND 1 1 1,2 Tetrachloroethane 050 ND <br /> ' 2-Chlorotoluene 0 50 ND 1 1 2 2-Tetrachlorethane 050 ND <br /> 4-Chlorotoluene 0 50 ND Tetrachloroethene 050 2 9 <br /> 1,2-Dibromo-3-chloro ro ane 050 ND Toluene 050 ND <br /> ' 1 2-Dibromoethane(EDB) 0 50 ND 1,2,3-Trichlorobenzene 1 0 50 ND <br /> Dibromomethane 0 50 ND 1 2 4-Trichlorobenzene 0 50 NO <br /> 1,2-Dichlorobenzene 0 50 ND 1,1,1-Trichloroethane 0 50 NO <br /> 1,3-Dichlorobenzene 050 NO 1,1 2-Trichloroethane 0 50 NO <br /> ' 1,4-Dichlorobenzene 050 NO Trichloroethene 0 50 NO <br /> Dichlorodifluoromethane 0 50 ND Trichlorofluoromethane 050 ND <br /> 1 1-Dichloroethane 0 50 ND 1 2 3-Tnchl6r0 ra ane 050 NO <br /> 1 2-Dichloroethane 0 50 ND 1 2 4-Trimeth (benzene 050 ND <br /> 1,1-Dichloroethene 0 50 ND 1 3 5-Trimeth (benzene 050 ND <br /> cis-1 2-Dichloroethene 0 50 NO Vinyl Chloride 050 NO <br /> trans-1,2-Drchloroethene 050 ND Xylenes total 050 ND <br /> 1 2-Dichloropro ane 0 50 NO <br /> "Report Limit Multiplication Factor 5"* <br /> *Report Limit Multiplication Factor for MTBE 100 <br /> *`Report limit raised due to matrix interference <br /> Surrogate Recoveries <br /> Dibromofluoromethane 130% Toluene d8 102% <br /> 1,2-Dichloroethane-d4 903% p-Bromofluorobenzene 102% <br /> I <br /> Instrument ID HP 5972 MS <br /> ' Analytes reported as ND were not detected or below the Practical Quantrtation Limit <br /> Practical Quantitation Limit Reporting Limit x Report Limit Multiplication Factor <br /> • (pg1L)= microgra per liter or a per illion(ppb) <br /> ANALYST APPROVED BY <br /> Can Cone J es C Phillips i <br /> Laboratory Director <br /> I <br /> I I E I I <br /> i II i i I i II <br />