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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/Analysts Method EPA 5030/8260 Analyzed 08-23-02 <br /> Attn Tim Cuellar Lab Number 4987-3W Reported 08-28-02 <br /> Client Sample ID MW 4 08-16 02 <br /> ' VOLATILE ORGANICS - EPA METHOD 8260 GC/MS <br /> REPORTING SAMPLE REPORTING SAMPLE <br /> ANALYTE LIMIT* RESULT ANALYTE LIMIT" RESULT <br /> (pq1L) (Ug/L) (pgIL 1L <br /> "Benzene 050 81 1 3-Dichloro ro ane 050 ND <br /> Bromobenzene 0 50 ND 2,2-Dtchloro ro ane 050 ND <br /> Bromochloromethane 0 50 ND 1 1-Dtchloro ro ene 050 ND <br /> ' Bromodichloromethane 0 50 ND cis-1 3-Dichioro ro ene 050 ND <br /> Bromoform 0 50 ND trans-1,3-Dichloro ro ene 050 ND <br /> Bromomethane 0 50 ND Eth (benzene 050 4 5 <br /> n-But Ibenzene 0 50 ND Hexachlorobutadiene 050 ND <br /> ' sec-But (benzene 050 ND IsoDroovIbenzene 050 ND <br /> tert-But Ibenzene 050 ND -Isoprop [toluene 050 ND <br /> Carbon tetrachloride 050 ND Methylene chloride 050 ND <br /> Chlorobenzene 050 ND Methyl tert-But I Ether(MTBE) 050 2 0 <br /> ' Chlorodtbromomethane 050 ND Na thalene 050 1 1 <br /> Chloroethane 0 50 ND n-Propylbenzene 0 50 ND <br /> Chloroform 050 20 Styrene 050 ND <br /> Chloromethane 0 50 ND 1,1,1,2-Tetrachloroethane 050 ND <br /> 2-Chlorotoluene 0 50 ND 1,1,22-Tetrachlorethane 050 ND <br /> 4-Chlorotoluene 0 50 ND Tetrachloroethene 050 1500 <br /> 1 2-Dibromo-3-chloro ropane 050 ND Toluene 050 ND <br /> ' 1 2-Dtbromoethane EDB) 050 NO 1,2 3-Tnchlorobenzene 050 ND <br /> Dibromomethane 050 ND 1 2 4-Tnchlorobenzene 050 NO <br /> 1,2-Dtchioro benzene 050 NO 1 1 1-Trichloroethane 050 ND <br /> 1 3-Dichlorobenzene 050 ND 1,1 2-Trichloroethane 050 NO <br /> 1 4-Dichlorobenzene 0 50 ND Trichloroethene 050 17 <br /> Dichlorodifluoromethane 0 50 ND Trichlorofluoromethane 050 ND <br /> 1 1-Dichloroethane 050 ND 1,2 3-Tnchloro ro ane 050 NO <br /> 1 2-Dichloroethane 050 ND 1 2,4-Trimeth Ibenzene 050 2 6 <br /> 1 1-Dichloroethene 0 50 ND 1 3 5-Trimeth Ibenzene 050 0 83 <br /> as-1 2-Dtchloroethene 0 50 ND Vinyl Chloride 050 NO <br /> trans-1 2-Dichioroethene 050 ND Xylenes,total 050 64 <br /> 1 2-Dichloropropane 0 50 ND <br /> 1 <br /> i <br /> *Report Limit Multiplication Factor 1 <br /> *Report Limit Factor for Tetrachloroethene 100 <br /> I <br /> I <br /> Surrogate Recoveries <br /> Dibromofluoromethane 126% Toluene-d8 115% <br /> j 1 2-Dichloroethane-d4 784% p-Bromofluorobenzene 104% <br /> Instrument ID HP 5972 MS <br /> ' Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> Practical Quantitatton Limit= Reporting Limit x Report Limit Multiplication Factor <br /> (p1 glL)= microgra s p r Ittera p billion (ppb) <br /> ANALYST (zu APPROVED BY <br /> Clan J Cone / mes C Phillips <br /> Laboratory Director <br /> 1 � <br /> I <br /> f <br />