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CHEMWEST ANALYTICAL LABORATORIES <br /> TOTAL PETROLEUM HYDROCARBONS - PURGEABLE <br /> CW: CALUFT <br /> Quality Control <br /> Client ID: LQCS GC-5 ST509 CHEMWEST ID: 9796-QC1 <br /> Date Analyzed: 07/10/92 Matrix Soil <br /> Spike $ <br /> r' Conc. Recovery Recovery <br />' Compound (MG/KG) 9796-MBS 9796-MBSD RPU <br /> Total Petroleum Hydrocarbons <br /> ------------------------------------------------ <br /> --------------------------------------- <br /> (Purgeable) 12 . 5 101% 100% 1t <br />' --------------------------------------------------------_----------- <br />' Spike % % <br /> Conc. Recovery Recovery <br /> Surrogate (MG/KG) 9796-MBS 9796-MBSD <br /> ----------------------------------------------------------------- <br />' Bromofluorobenzene 20 109% 103% <br /> _-_---------------------------------------------- <br /> CALUFT: See Narrative <br /> ' Date Reported: <br /> Approved by: � I� 07/28/92 REV 5 : 1. 90 <br /> 1 <br />: 1 <br /> COMRJCHFM WFSTFRN DIVISION <br /> r <br />