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CHEMTECH ANALYTICAL LABORATORIES <br /> ANALYSIS REPORT <br /> CLIE'NT:Western Geo CONTACT: G. Converse <br /> Date Samples Received: 08-17-90 P.O. #: <br /> Date of Analysis: 08-17-90 CT ID: 1477 <br /> Lab ID: LCS, LCSD <br /> Matrix: Soil <br /> BTEX MATRIX SPIKE SUMMARY <br /> RUN DATE: 08-17-90 <br /> CONC UNITS: mg/kg(ppm) <br /> SAMPLE SPIKED: LCS, LCSD-1477 <br /> t <br /> COMPOUND CONC CONC PERSENT o <br /> SPIKED MEASURED RECOVERY RPD <br /> MS MSD MS MSD <br /> BENZENE 1.25 1.18 1 .22 94 98 4 <br /> TOLUENE 1 .25 1.04 1.03 83 82 1 <br /> ETHYLBENZENE 1.25 1.06 1.01 85 81 5 <br /> O/M/P-XYLENES 3.75 2.90 2.83 77 75 3 <br /> MS = Matrix Spike <br /> MSD = Matrix Spike Duplicate <br /> RPD = Relative Percent Difference <br /> CONC = Concentration <br /> 0101- KII (-.Oni- Ro An H11Q 0 rIANr_Hr)r.ORDOVA CA (157 t7 P10-fIFt6) 635 qrir-), • FAX 016) 635 r}3-3� <br />