Laserfiche WebLink
*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 GeoEnvironmental, Inc Client Project ID Cal Fuels Method EPA 5030/8015M,8020 <br />' of Northern California Reference Number 2007 Instrument ID Var-GC1 <br /> 4005 North Wilson Way Matrix Water Prepared 1-27-99 <br /> Stockton, CA 95205 Analyst Jim Phillips Analyzed 1-27-99 <br /> Ann Tim Cuellar Reported 2-12-99 <br />' QUALITY CONTROL DATA REPORT <br /> ANALYTE Gasoline MTBE Benzene Toluene Ethyl Benzene Total Xylenes <br />' Spike Concentration 110 222 1 34 7 82 1 84 948 <br /> Units ug/L ug/L ug/L ug/L ug/L ug/L <br /> LCS Batch # VW-1279 VW-1279 VW-1279 VW 1279 VW-1279 VW-1279 <br /> LCS % Recovery 120% 115% 114% 980% 103% 967% <br /> Surrogate Recovery 106% 102% 102% 102% 102% 102% <br />' Control Limits 70-130 % 70130 % 70-130 % 70-130 % 70-130 % 70-130 % <br />' MSIMSD Batch # VW-1279 VW-1279 VW-1279 VW 1279 VW-1279 VW-1279 <br /> MS % Recovery 126% 960% 125% 108% 112% 106% <br />' Surrogate Recovery 110% 106% 106% 106% 106% 106% <br /> MSD % Recovery 126% 770% 113% 95 9% 996% 94 5% <br /> Surrogate Recovery 97 5% 941% 941% 94 1% 94 1% 941% <br />' Relative % Difference 00967% 134% 102% 11 4% 11 7% 11 5% <br /> Methanol Blank ND ND ND ND ND ND <br /> Surrogate Recovery 99 6% 99 1% 99 1% 99 1% 99 1% 99 1% <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 10 accept or <br /> reject batch results <br /> PK-' ANALYST APPROVED BY ' <br /> Clan J Cone Jaes C Phillips <br /> nvrronmenta!Lab Director <br />