Laserfiche WebLink
CASTLE ANALYTICAL LABORATORY <br />' Environmental Testing Services 2333 Shuttle Drive, Atwater, CA 95301 Phone (209) 384-2930 <br /> Certificate #2079 Fax 1209) 384-1507 <br /> Advanced GeoEnvironmental, Inc Client Project ID Nomellin+ Method EPA 5030/8015M,8020 <br /> of Northern California Reference Number 2550 Instrument 0 Var-GC1 <br /> 4005 North Wilson Way Matrix Water Prepared 10-23-99 <br /> Stockton, CA 95205 Analyst Jim Phillips Analyzed 10 23-99 <br /> Attn Tim Cuellar Reported 11-10-99 <br />' QUALITY CONTROL DATA REPORT <br /> ANALYTE Gasoline MTBE Benzene Toluene Ethyl Benzene Total Xylenes <br /> 1 <br />' Spike Concentration 110 222 1 34 7 82 1 84 9 48 <br /> Units uglL ug/L uglL ug/L ug/L ug/L <br /> LCS Batch # VW-0239 VW-0239 VW-0239 VW-0239 VW-0239 VW-0239 <br /> LCS % Recovery 92 5% 109% 108% 953% 99 4% 887% <br /> Surrogate Recovery 102% 999% 99 9% 99 9% 999% 99 9% <br />' Control Limits 70-130 % 70-130 % 70 130 % 70-130 % 70-130 % 70 130 <br /> MSIMSD Batch # VW 0239 VW-0239 VW-0239 VW-0239 VW-0239 VW-0239 <br /> Spike Concentration 110 2 22 1 34 7 82 1 84 9 48 <br />' MS % Recovery 942% 155% 123% 964% 101% 91 2% <br /> Surrogate Recovery 105% 106% 106% 106% 106% 106% <br /> MSD % Recovery 96 2% 110% 129% 994% 102% 93 1% <br /> Surrogate Recovery 104% 107% 107% 107% 107% 107% <br /> Relative % Difference 1 86% 34 5% 4 10% 306% 0 706% 200% <br /> Methanol Blank ND NO NQ NO NO ND <br /> Surrogate Recovery 92 4% 990% 990% 990% 990% 99 0% <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 /> ANALYST APPROVED 8Y ` <br /> 4 <br /> Clan J Cone J s P r lips <br /> BY, <br /> Lab Director <br />