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CHEMTECH ANALYTICAL LABORATORIES j <br /> ANALYSIS REPORT <br /> CLIENT: Western Geo CONTACT: G. Converse <br /> Date Samples Received: 10-10-90 P.O. 0: <br /> Date of Analysis: 10-11-90 CT ID: 1565 <br /> Sample ID: <br /> Lab ID: LCS, LCSD <br /> Matrix: Soil. <br /> BTEX MATRIX SPIKE SUMMARY <br /> r RUN DATE: 10-11-90 s <br /> CONC UNITS: mg/kg (ppm) <br /> SAMPLE SPIKED: LCS, LCSB-(1565) <br /> COMPOUND CONC CONC PERSENT <br /> { <br /> SPIKED MEASURED RECOVERY RPD <br /> MS MSD MS MSD <br /> BENZENE 1.2.5 2.05 1.77 164% 142% 14% <br /> TOLUENE 1.25 0.93 0.82 74% 66% 11% <br /> ETHYLBENZENE 1.25 0.72 0.63 58% 50; 15% <br /> 0/M/P-XYLENES 3.75 2.09 1.Z5 56% 49% 13% <br /> ti <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> CONC = Concentration <br /> 3-,!7 YILGOR=_ ROAD-1 10 • RANCHO CORDOVA.CA 95742 PHOti�- 16i 635.3552 • .FAX f9161635-933, ' <br /> :i <br /> 'Elsa 1191 El wlfflwlmllfti=�� <br />