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' CASTLE ANALYTICAL LABORATORY <br /> E=nvironmental Testing Services 2333 Shuttle Drive,Atwater CA 95301 Phone (209)384-2930 <br /> Certificate#2480 Fax (209)384-1507 <br /> FETim <br /> Environmental, inc Client Project ID Cal-Fuels Method EPA 5030/8260 <br />' lifornia Reference Number 5354 Instrument fD Varian GC/MS <br /> d Matrix Water Prepared D1 02-03 <br /> 5215 Analyst Clan J Cone Analyzed 01-02-03 <br /> ar Reported 01-06-03 <br /> 1 <br /> QUALITY CONTROL DATA REPORT <br />' SPIKE ID VWMS-1023 <br /> Reporting BLANK Spiking Control %R <br />' Limit Result Level Spike Limits <br /> /L /L /L %R <br /> COMPOUNDS <br /> t-But I Alcohol(t-BA) 20 ND 750 NA* 553- <br /> Methyl t-but l ether (MTBE) 050 ND 250 NA* 604-137 <br /> Dusa ro yl ether DIPS 050 ND 250 NA* 705-131 <br /> Ethyl t-Butyl ether ETRE 050 ND 250 NA* 721 -131 <br /> Klene <br /> methvi ether TAME 050 ND 250 NA* 71 7- 119 <br /> oethane 1 2-DCA 050 ND 250 NA* 63 6-138 <br /> ibromids(EDB 0 50 ND 250 NA* 667-129oethane-d4 100 103% 100 NA' 592-135 <br /> 10 0 93 7% 100 NA* 629-132 <br /> Spiking CONTROL CONTROL %R %RPD <br /> Level SPIKE SPIKE DUP Limits <br /> COMPOUNDS 1L %R %R <br /> t-But I Alcoholft-BA) 750 115% 161% 553- 153 330% <br /> Methyl t-but !ether (MTBE) <br /> 250 960% 104% 604- 137 838% <br /> Dnsopropyl ether(DIPE) 250 956% 102% 705- 131 687% <br /> Ethyl t-But I ether ETRE) 250 948% 102% 721 - 131 771% <br /> t-Am I methyl ether(TAME) 250 916% 988% 717- 119 756% <br /> 1 2-Dichloroethane(1,2-DCA) 250 104% 112% 636- 138 743% <br /> Eth lene dibromide(EDB) 250 103% 106% 667-129 305% <br /> Surrogate <br /> 1 2-Dichloroethane-d4 100 990% 114% .592-135 144% <br /> IToluene-d8 100 101% 103% 629- 132 177% <br /> *See Control Spike/Control Spike Dup Below Matrix spikes not analyzed due to matnx interferences <br /> The LCS(Laboratory Check Sample) is a control sample of known interferent free matrix that is fortified with representative analytes and <br /> analyzed using the same reagents, preparation and analytical methods employed for the samples The LCS%recovery is used for validation <br /> of sample batch results Due to matrix effects the OC limits and recoveries for MS/MSD's are advisory only and are not used to accept or <br /> reject batch results <br /> ANALYST APPROVED BY <br /> I Clan J Cone Jam Phillips <br /> oratory Director <br /> f <br />