Laserfiche WebLink
n n <br /> CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater CA 95301 Phone (209)384-2930 <br /> Certificate#2079 Fax (209)384-1507 <br /> Advanced Geo Environmental, Inc Client Project ID Pacific Car Wash Method EPA 5030/8015M 8020 <br /> of Northern California Reference Number 3355 Instrument ID Var-GC1 <br /> 4005 North Wilson Way Matrix Water Prepared 12-5-00 <br /> Stockton CA 95205 Analyst Jim Phillips Analyzed 12-5-00 <br /> Attn Tim Cuellar Reported 12-11-00 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Gasoline MTBE Benzene Toluene Ethyl Benzene Total Xylenes <br /> Spike Concentration 110 2 08 1 28 772 1 84 924 <br /> Units ug/L ug/L uglL ug1L uglL uglL <br /> LCS Batch# VW-D050 VW-0050 VW-DO50 VW-DO50 VW-D050 VW-D050 <br /> LCS %Recovery 104% 143% 118% 100% 101% 989% <br /> Surrogate Recovery 106% 102% 102% 102% 102% 102% <br /> Control Limits 70-130% 70-130% 70-130% 70-130% 70-130% 70-130% <br /> MSIMSD Batch# VW-DO50 VW-0050 VW--DO50 VW-D050 VW-DO50 VW-DO50 <br /> Spike Concentration 110 208 128 772 1 84 924 <br /> MS %Recovery 104% 101% 105% 930% 920% 899% <br /> Surrogate Recovery 100% 980% 980% 980% 980% 980% <br /> MSD% Recovery 103% 107% 110% 106% 102% 99 1% <br /> Surrogate Recovery 105% 102% 102% 102% 102% 102% <br /> Relative% Difference 107% 574% 456% 129% 102% 942% <br /> Methanol Blank ND ND ND ND NO ND <br /> Surrogate Recovery 980% 103% 103% 103% 103% 103% <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 QC limits and recoveries for MSIMSD's are advisory only and are not used to accept or <br /> reject batch results <br /> .s <br /> ANALYST APPROVED BY <br /> Clan J Cone Ja hNips <br /> nvironrnenta!Lab Director <br />