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f <br /> CHEMTECH ANALYTICAL LABORATORIES <br /> ANALYSIS REPORT <br /> CLIENT: Western Geo CONTACT: G. Converse <br /> Date Samples Received: 08-24-90 P.O. 0 : <br /> Date of Analysis. 08-28-90 CT ID: 1494 <br /> Sample ID: <br /> Lab ID: LCS, LCSD <br /> Matrix: Water <br /> BTEX MATRIX SPIKE SUMMARY <br /> RUN DATE: 08-28-90 <br /> CONC UNITS: ug/L (ppb) <br /> SAMPLE SPIKED: LCS, LCSD-1494 <br /> COMPOUND CONC CONC PERSENT p <br /> SPIKED MEASURED RECOVERY RFD <br /> I <br /> MS MSD MS MSD <br /> BENZENE 25 22 23 88 92 4 <br /> TOLUENE 25 22 23 88 92 4 <br /> r ETHYLBENZENE 25 22 22 88 88 0 <br /> O/M/P-XYLENES 75 65 67 87 89 2 <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> CONC = Concentration <br /> 3017 KILGORC ROAD a 1 10 0 RANCHO CORP OVA CA 95'Q P1i(,rlE 635 39b2 s FAX (9161 <br />