Laserfiche WebLink
i <br /> t <br /> CASTLE ANALYTICAL LABORATORY <br /> Environmental Testing Services 2333 Shuttle Drive Atwater, CA 95301 Phone (209) 384-2930 <br /> Certificate No 2079 Fax (209) 3841507 <br /> Advanced GeoEnvuonmental, Inc Client Project ID Cal Fuels Method TPH-Diesel <br /> of Northern California Reference Number 1677 Instrument ID HP-GC1 <br /> 4005 North Wilson Way Matrix Water Prepared 7-23-98 <br /> Stockton, CA 95205 Analyst Jim Phillips Analyzed 7-23-98 <br /> Attn Tim Cuellar Reported 7-29-98 <br /> QUALITY CONTROL DATA REPORT <br /> 1 <br /> ANALYTE TPH-Diesel <br /> 1 <br /> Spike Concentration 250 <br />' Units uglL <br /> LCS Batch b TPHDW-7238 <br />' LCSA % Recovery 905% <br /> LCS$ % Recovery 92 5% <br /> Control Limits 55-130 % <br /> Relative % Difference 2 17% <br /> MSIMSD Batch it TPHDW-7238 <br />' MS % Recovery See Note <br /> MSD % Recovery See Note <br />' Relative % Difference See Note <br /> 1 <br /> Note Insufficient sample material to prepare MS/MSD samples LCS samples prepared in duplicate <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 BY <br />' Clan J Cone !!OKI s Phr bps <br /> nvironmenral Lab Director <br />