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1 <br /> CASTLE ANALYTICAL LABORATORY <br /> ' Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone (209)384-2930 <br /> Fax (209)384-1507 <br /> Advanced GeoEnvironmental, Inc Client Project ID Rainwater Carwash Method EPA 5030/8260 <br /> t of Northern California Lab Reference Number 5220(1-20) Instrument ID HP Series II <br /> 837 Shaw Road Matrix Water Prepared 11-15-02 <br /> Stockton, CA 95215 Analyst S Foster Analyzed 11-15-02 <br /> ' Attn Tim Cuellar Reported 11-26-02 <br /> QUALITY CONTROL DATA REPORT <br /> SPIKE ID VWMS-N162 <br /> Reporting BLANK Spiking Control %R <br /> Limit Result Level Spike Limits <br /> u IL u /L u /L %R <br /> COMPOUNDS <br /> t-Butyl Alcohol(t-BA) 20 ND 750 948% 70-130 <br /> 1 <br /> Methyl t-butyl ether MTBE 050 ND 250 106% 70-130 <br /> Diiso rop I ether DIPE 050 ND 250 107% 70-130 <br /> Ethyl t-Bulyl ether ETBE 050 ND 250 976% 70-130 <br /> t-Am I methyl ether(TAME) 050 ND 250 952% 70-130 <br /> ' 1,2-Dichloroethane 1,2-DCA 050 ND 250 84 0% 70-130 <br /> Ethylene dibromide EDB 050 ND 250 900% 70-130 <br /> 1 1-Dichloroethene 1 1,DCE 050 ND 250 101% 70-130 <br /> Benzene 0 50 ND 2 50 114% 70-130 <br /> Trichloroethene(TCE) 0 50 ND 250 110% 70-130 <br /> Toluene 050 ND 2 50 112% 70-130 <br /> Chlorobenzene 0 50 ND 2 50 106% 70-130 <br /> Surrogate <br /> Dibromofluoromethane 100 102% 100 116% 70-13 <br /> 1 2-Dichloroethane-d4 10 0 860% 100 964% 70-130 <br /> Toluene-d8 100 105% 100 983% 70-1130 <br /> 4-Sromofluorobenzene 100 930% 100 91 9% 70-130 <br /> Spiking MATRIX MATRIX %R %RPD <br /> Level SPIKE SPIKE DUP Limits <br /> u /L %R %R <br /> COMPOUNDS <br /> t-Butyl Alcohol(t-BA) 750 897% 798% 70-130 11 50A <br /> Methyl t-butyl ether MTBE 250 868% 948% 70-130 772% <br /> Dusopropyl ether DIPE 250 103% 108% 70-130 417% <br /> ' <br /> Ethyl t-Butyl ether(ETBE) 250 936% 988% 70-130 5 41% <br /> t-Am I methyl ether AME) 250 772% 864% 70-130 998% <br /> 1 2-Dichloroethane 1 2-DCA 250 888% 836% 70-130 587% <br /> Ethylene dibrom,de(EDP) 250 880% 912% 70-130 357% <br /> ' 1 1-Dichloroethene 1,1,DGE 250 100% 916% 70-130 917% <br /> Benzene 2 50 113% 108% 70-130 429% <br /> Trichloroethene(TCE) 2 50 100% 106% 70-130 578% <br /> Toluene 250 104% 107% 70-130 250% <br /> ' Chlorobenzene 250 992% 101% 70-130 200% <br /> Surrogate <br /> Dibromofluoromethane 100 134% 124% 70-130 785% <br /> 1 2-Dichloroethane-d4 100 108% 959% 70-130 1 114% <br /> ' Toluene-d8 100 990% 103% 70-130 415% <br /> 4-Bromofluorobenzene loo 943% 956% 70-130 1 37% <br /> f ff <br /> �� / <br /> � n <br /> ' ANALYST /i�1 APPROVED BY 1 j <br /> Clan J Cone Ja es C Phi lips <br /> L boratory Director <br /> i <br />