Laserfiche WebLink
1 <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 GeoEnvironmental Inc Client Project ID Cal Fuels Method EPA 503018015M 8020 <br />' of Northern California Reference Number 6789 Instrument 10 Var-GC1 <br /> 837 Shaw Road Sample Description Water Extracted 03-29-04 <br /> Stockton CA 95215 Analyst Jim Phillips Analyzed 03-29-04 <br /> Attn Tim Cuellar Reported 04-06-04 <br /> 1 <br />' QUALITY CONTROL DATA REPORT <br />' ANALYTE Gasoline MTBE Benzene Toluene Ethyl Benzene Total Xylenes <br /> Spike Concentration 110 2 10 132 794 1 84 922 <br />' Units ug/L ug/L ug/L ug/L ug/L ug/L <br /> LCS Batch# VW-3294 VW-3294 VW-3294 VW-3294 VW-3294 NIW-3294 <br /> LCS%n Recovery 864% 942% 81 1% 809% 877% 864% <br /> Surrogate Recovery 100% 997% 997% 997% 997% 997% <br /> lie Control Limits 70-130% 70-130% 70-130% 70-130% 70-130% 70-130% <br />' MSIMSD Batch# VW-3294 VW-3294 VW-3294 VW-3294 VW-3294 VW-3294 <br /> Spike Concentration 110 210 1 32 794 1 84 922 <br />' MS%Recovery 954% 638% 676% 950% 938% 104% <br /> Surrogate Recovery 106% 121% 121% 121% 121% 121% <br /> MSD% Recovery 886% 712% 685% 892% 91 2% 968% <br /> I Surrogate Recovery 107% 115% 115% 115% 145% 115% <br /> Relative%Difference 708% 109% 1 35% 629% 2 81%0 7 39% <br />' Method Blank ND NO ND ND ND ND <br /> Surrogate Recovery 101% 101% 101% 101% 101% 101% <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 <br /> I ANALYST APPROVED BY 'J/ <br /> Clara J Cone Jam 8 C l lips <br /> La ratory Director <br /> I <br />