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x r <br /> CHEMTECH ANALYTICAL LABORATORIES <br /> ANALYSIS REPORT <br /> CLIENT; Western Geo CONTACT: G. Converse <br /> Date Samples Received: 09-19-90 P.O. # : <br /> Date of Analysis: 09-21-90 CT ID: 1528 <br /> Sample ID: 904781 <br /> Lab ID: MS, MSD <br /> Matrix: Soil <br /> BTEX MATRIX SPIKE SUMMARY <br /> RUN DATE: 09-21-90 <br /> CONC UNITS: mg/kg (ppm) <br /> SAMPLE SPIKED: 904781-MS, MSD <br /> COMPOUND CONC CONC PERSENT <br /> SPIKED MEASURED RECOVERY RPD <br /> MS MSD MS MSD <br /> BENZENE 1.25 1 .77 1.96 1420 157% 10 <br /> TOLUENE 1.25 1.09 1.21 87% 970 11 <br /> ETHYLBENZENE 1.25 0.94 1.02 75% 82% 9 <br /> O/M/P-XYLENES 3.75 2.72 2.94 73% 78% 7 <br /> MS Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> CONIC = Concentration <br /> 017 KILGORE ROAD#110 0 RANCHO CORDOVA CA 95742 P�iCNE t9s 6, 635 3962 o FAX (916) S5 322 <br />