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r <br /> L <br /> estimated from the estimated size of the plume and the estimated <br /> �.yy� <br /> groundwater velocity in <br /> the region feet per day). This is the same approach that was used to estimate the <br /> opportunities for exposure to TCEin the previous section. <br /> The distance between AP 62 Lot 72 and AP 69 Lot 32 (the southernmost well where PCE <br /> was detected) is approximately 3470 feet. Assuming that the PCE plume does not extend <br /> any farther south than AP 69 Lot 321,the PCE contamination would have.first reached the <br /> well at AP'62 Lot 72 in the s rnmer of 1991 (3470 feet-2 feet per day= 1735 =4.8 <br /> however, <br /> years). because the well at AP 62 Lot 72 was only installed on April 10, 1992, <br /> the residents of this house could have been exposed to PCE in the groundwater through <br /> drinking or bathing starting in the spring of 1992. <br /> The distance between AP 62 Lot 241 and AP 69 Lot 32 is approximately 27 10 feet. <br /> Using the same assumptions as were used i <br />