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' Tracer Research Corporation <br /> The detection limits for target compounds depend on the sensitivity of the <br /> ' detector to the individual compound as well as the volume of the injection. The <br /> detection limits of the target compounds were calculated from the response factor, the <br /> sample size, and the calculated minimum peak size (area) observed under the <br /> conditions of the analyses. If any compound was not detected in an analysis, the <br /> detection limit is given as a "less than" value, e.g., <0.1 micrograms per liter (ug/1). <br /> The following-tables present the detection limits of the targeted compounds. <br /> Table 1. Detection Limits for Soil Gas Compounds <br /> Compound Detection Limits NO <br /> benzene 0.04 <br /> toluene 0.1 <br /> 1 <br /> ethylbenzene 0.4 <br /> xylenes 0.3 <br /> total volatile hydrocarbons 0.3 <br /> 1 <br /> May L', 1992 Page 5 1-92-358 <br />