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CJQUIDuanterra <br /> Environmental <br /> Services <br /> LABORATORY CONTROL SAMPLE REPORT <br /> Volatile Organics by GC <br /> Project: 092397 <br /> Category: TPH-GAS=S` TPH by Purge and Trap- GC-FID. - (Low level ). <br /> Test: TPH-GAS-TR-L-S <br /> Matrix: SOIL C Run: 04 APR 97-19A <br /> QC Lot: 04 APR 97-191 Q <br /> Concentration Units: mg/kg <br /> Concentration Accuracy(%) <br /> Analyte Spiked Measured LCS Limits , <br /> Gasoline 1 .00 1.03 103 82-115 , <br /> 4-Bromofluorobenzene 0.020 0.021 103 70-130 j <br /> r. <br /> LI <br /> � i <br /> if <br /> I <br /> i <br /> r <br /> - i <br /> q <br /> J <br /> Calculations are performed before rounding to avoid round-off errors in calculated results. Rl <br /> tr <br />