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OEMi <br /> NEWt <br /> } <br /> All <br /> i� <br /> 3 <br /> III <br /> CHEMTECH ANALYTICAL LABORATORIES <br /> ANALYSIS REPORT <br /> CLIENT: Western Geo CONTACT: G. Converse <br /> Date Samples Receiver!: 04-04-91 P.O. #: <br /> Date of Analyses: 04-04-91 CT ID: 1807 <br /> Lab I9: LCS. LCSD <br /> Matrix: Water { <br /> i. BTEX LABORATORY CONTROL SPIKE SUMMARY <br /> RUN DATE: 04-04-91 <br /> CONC UNITS! u9/L (Ppb) f: <br /> SAMPLE SPIKED: LCS, LCSD,-( 1BO7 ) <br /> ------------------------------------------------------------- <br /> COMPOUND CONC CONC PERCENT <br /> SPIKED MEASURED RECOVERY RPD <br /> LCS LCSD LCS LCSD --- <br /> -------------------------------- <br /> 25 -� - ---92%- 92% `--©% <br /> BENZENE <br /> ----------- <br /> TOLUENE 25 23 ::24 92% 96% 4% <br /> ETHYLBENZENE 25 24 25 96% 1002 4% <br /> O/M/P-XYLENES 75 72 75 96% 100% 4% <br /> LCS Laboratory Control Spike F <br /> LCSD = Laboratory Control Spike Duplicate <br /> f <br /> RPD = Relative Percent Difference { <br /> t <br /> 4 <br /> CONC = Concentration <br /> J� <br />