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P- a <br /> CHEMTECH ANALYTICAL LABORATORIES <br /> ANALYSIS REPORT CONTACT: G. Converse <br /> CLIENT: Western Geo P.O. 0: <br /> Date Samples Received: 03-29-91 CT 10t 1802 <br /> Date of AnalYSjS: 04-01-91 <br /> Lab ID; LCS. LCSD <br /> Matrix: Water <br /> 13TEX LABORATORY CONTROL SPIKE SUMMARY <br /> RUN DATE: 04-01-91 <br /> r,CNC UNITS: uq/L (ppb ) <br /> SAMPLE SPIKED: LCs. LCSD-( 1e02 ) ------------------- --------- <br /> ------------- ----------- pERCENT % <br /> -00--M-p6U-N--D . <br /> --------DNC CONC RECOVERY RPD <br /> SPIKED MEASURED <br /> LCS LCSD LCS LCSD <br /> ------------------- <br /> 10A% 164% 0% <br /> 3 ENZENE 5 <br /> TOLUENE 25 2B 2e 112% 112% 0% <br /> ETHYLBENZENE 25 32 32 126% 126% 0% <br /> O/M/p-XYLENES 75 94 97 125% 129% 3% <br /> LCS = Laboratory Control Spike <br /> LCSD = Laboratory Control Spike DuPlic8te <br /> RPD = Relative Percent Difference <br /> CONC = Concentration <br /> ----------- <br /> 7' <br /> 7 <br />