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 GeoEnviron mental, Inc Client Project ID Nometlmi Construction Method EPA 5030/8015M,8020 <br />' of Northern California Reference Number 2785 Instrument ID Var-GC1 <br /> 4005 North Wilson Way Matrix Water Prepared 1-28-00 <br /> Stockton,CA 95205 Analyst Jim Phillips Analyzed 1-28-00 <br /> Attn Tim Cuellar Reported 2-9-00 <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 ug1L ug/L. ug/L <br /> LCS Batch# VW-1280 VW-1280 VW-1280 VW-1280 VW-1280 VW-1280 <br />' LCS % Recovery 899% 945% 852% 768% 845% 745% <br /> Surrogate Recovery 102% 995% 995% 995% 995% 995% <br /> Control Limits 70-130% 70-130% 70-130% 70-130% 70-130% 70-130% <br /> MS/MSD Batch# VW-1280 VW-1280 VW-1280 VW-1280 VW-1280 VW-1280 <br />' Spike Concentration 110 222 1 34 7 82 1 84 948 <br /> MS% Recovery 723% 964% 740% 769% 820% 748% <br />' Surrogate Recovery 101% 963% 963% 963% 963% 963% <br /> MSD%Recovery 722% 108% 742% 779% 822% 748% <br />' Surrogate Recovery 101% 993% 1193% 913% 993% 993% <br /> Relative%Difference 0127% 114% 0252% 1 16% 0 241% 00650% <br />' Methanol Blank NO NO NO NO NO NO <br /> Surrogate Recovery 989% 94 1% 94 1% 941% 941% 941% <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 MS/MSD's are advisory only and are not used to accept or <br />' reject batch results <br /> ANALYST APPROVED BY <br /> Clan J Cone Ja es C Phillips <br /> E oronmental Lab Director <br /> 1 ' <br />