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IN <br /> �A <br /> WEISS ASSOCIATES <br /> 2. PROPOSED GROUND WATER REMEDIATION <br /> As detailed in our report dated 15 October 1487, analytic results for groand water <br /> samples collected from the three ground water monitoring wells at the site were below the <br /> detection limits of I ppm for TFHC and 0.0005 ppm for benzene, toluene and xylenes <br /> (BTX). As discussed on page 4 of the preceding report, we intend to install an additional <br /> ground water monitoring well, screened into the unsaturated zone, down gradient of the <br /> western end of the exczvation. After the additional well is developed it will be sampled <br /> along with .ne previously installed wells. The ground water samples will be analyzed by <br /> EPA Method 8015 for TFHC and by EPA Method 602, gas chromatography with <br /> photoionization detection (GC/PID), for BTX. <br /> All previous and current sampling results will be used to determine whether ground <br /> water remediation will be instituted at the site. <br /> 1 <br /> s <br />