Laserfiche WebLink
I <br /> CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive,Atwater,CA 95301 Phone (209)384-2930 <br /> Certificate#2480 Fax (209)384-1507 <br /> ' Advanced Geo£nvironmental, Inc Client Project ID Rainwater Car Wash Method EPA 5030/8015M,8020 <br /> of Northern California Reference Number 5218 Instrument ID Var-GC1 <br /> 837 Shaw Road Sample Description Water Extracted 11-13-02 <br /> Stockton CA 95215 Analyst Jim Phillips Analyzed 11-13-02 <br /> Attn Tim Cuellar Reported 11-26-02 <br /> ' QUALITY CONTROL DATA REPORT <br /> ANALYTE Gasoline MTBE Benzene Toluene Ethyl Benzene Total Xylenes <br /> ' Spike Concentration 110 210 1 32 794 1 84 922 <br /> Units ug/L uglL uglL ug1L ug/L ug/L <br /> LCS Batch# VW-N132 VW-N132 VW-N132 VW-N132 VW-N132 VW-N132 <br /> ' LCS% Recovery 118% 105% 109% 998% 111% 105% <br /> Surrogate Recovery 112% 107% 107% 107% 107% 107% <br /> • Control Limits 70-130% 70-130% 70-130% 70-130% 70-130% 70-130% <br /> ' MS/MSD Batch# VW-N132 VW-N132 VW-N132 VW-N132 VW-N132 VW-N132 <br /> Spike Concentration 110 210 1 32 7 94 1 84 922 <br /> ' MS%Recovery 103% 950% 100% 912% 100% 959% <br /> Surrogate Recovery 102% 995% 995% 995% 995% 995% <br /> I <br /> MSD%Recovery 112% 113% 107% 978% 108% 104% <br /> Surrogate Recovery 111% 108% 108% 108% 108% 108% <br /> Relative%Difference 864% 162% 690% 689% 722% 766% <br /> ' Methanol Blank ND ND ND ND ND ND <br /> Surrogate Recovery 102% 106% 106% 106% 106% 106% <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 /> 1 <br /> i (yizt(L <br /> ANALYSTPROVED BY <br /> f <br /> Clan Cone -C Phillips <br /> L boratory Director <br /> 117 <br />