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CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Seances 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 11-12-02 <br /> 837 Shaw Road Sample Description Water Extracted 11-15-02 <br /> Stockton, CA 95215 Sample Prep/Analysis Method EPA 5030/8260 Analyzed 11-15-02 <br /> Attn Tim Cuellar Lab Number 5220-26W Reported 11-26-02 <br /> Client Sample ID MW 813/111202 <br /> VOLATILE ORGANICS - EPA METHOD 8260 GC1MS <br /> REPORTING SAMPLE REPORTING SAMPLE <br /> ' ANALYTE LIMIT" RESULT ANALYTE LIMIT' RESULT <br /> (pg/L) /L IL lL <br /> Benzene 0 50 ND 1,3-Dichloro ro ane 050 ND <br /> Bromobenzene 0 50 ND 2,2-Dichloro ro ane 050 ND <br /> ' Bromochloromethane 0 50 ND 1,1-Dichloro ro ene 050 ND <br /> Bromodichloromethane 0 50 ND cis-1,3-Dichloro roene 050 ND <br /> Bromoform 0 50 ND trans-1,3-Dichloro ro ene 050 ND <br /> Bromomethane 0 50 ND Eth (benzene 0 50 ND <br /> ' n-But (benzene 0 50 ND Hexachlorobutadiene 050 ND <br /> sec-But (benzene 0 50 ND Isopropylbenzene 0 50 ND <br /> tort-But lbenzene 0 50 ND p:lsopropylioluene 050 ND <br /> Carbon tetrachloride 0 50 ND Methylene chloride 2 50 6 0 <br /> ' Chiorobenzene 0 50 ND Methyl tent-Butyl Ether MTBE 0 50 21 <br /> Chlorodibromomethane 0 50 ND Na thalene 1 00 ND <br /> Chloroethane 0 50 ND n-Propylbenzene 0 50 ND <br /> Chloroform 0 50 1 0 Styrene 050 ND <br /> ' Chloromethane 050 ND 1 1,1 2-Tetrachloroethane 050 ND <br /> 2-Chlorotoluene 0 50 ND 1,1,2,2,-Tetrachlorethane 0 50 ND <br /> 4-Chierotoluene 0 50 NO Tetrachloroethene PCE 0 50 1100 <br /> 1 2-Dlbromo-3-chioro ro ane 050 NO Toluene 050 ND <br /> ' 1 2-Dibromoethane EDB 0 50 ND 1 2,3-Tnchlorobenzene 050 ND <br /> Dibromomethane 0 50 ND 1,2 4-Tnchlorobenzene 050 NO <br /> 1,2-Dichlorobenzene 050 ND 1,1,1-Trichloroethane 050 ND <br /> 1 3-Dichlorobenzene 0 50 NO 1 1,2-Trichloroethane 050 ND <br /> 1 4-Dichlorobenzene 0 50 ND Trichloroethene CE 050 19 <br /> Dichlorodifluoromethane 0 50 ND Trichlorofluoromethane 050 ND <br /> 1 1-Dichloroethane 0 50 ND 1 2 3-Trichloro ro ane 050 41 <br /> 1,2-Dichloroethane 0 50 5 4 1,2,4-Trimeth lbenzene 050 ND <br /> ' 1 1-Dichloroethene 050 ND 1,3 5-Trimeth lbenzene 050 ND <br /> cis-1,2-Dichloroethene 0 50 1 6 Mnyl Chloride 050 ND <br /> trans-1,2-Dichloroethene 0 50 ND Xylenes,total 050 ND <br /> 1,2-Dichloro ro ane 050 ND <br /> ' "Report Limit Multiplication Factor 2" <br /> *Report Limit Multiplication Factor for PCE 100 <br /> ' **Report limit raised due to matrix interference <br /> Surrogate Recoveries <br /> Dibromofluoromethane 128% Toluene-d6 102% <br /> 1,2-Dichloroethane-d4 879% p-Bromofluorobenzene 904% <br /> Instrument ID HP 5972 MS <br /> ' Analytes reported as ND were not detected or below the Practical Quantitation Limit <br /> Practical Quantitation Limit=Reporting Limit x Report Limit Multiplication f=actor <br /> (dig/L)= micrograms per liter or parts per billion(ppb) <br /> 01A_"-1a <br /> ' I ANALYST APPROVED BY <br /> I Clan J e C Phrllrps <br /> lam <br /> s aboratory arrector <br /> I ', <br />