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Recycling Pilot Program Summary <br />study for which data was collected (three weeks in the "Before" period, and five <br />weeks in the "During" period for the dual- stream routes, nine weeks for the Weekly <br />route). These gross weights were then converted to an average gross weight collected <br />per household per route. <br />During the material composition sorts and analysis, weights of non - targeted materials <br />included by residents with their recyclables were calculated for each pilot area. <br />Overall, non - targeted materials in the "During" single- stream areas were found to be <br />statistically significantly higher than the dual- stream "Before" areas. <br />Using this contamination data from the composition study, the gross weights per <br />household were then adjusted by subtracting the non - targeted materials to determine <br />the net pounds of targeted recyclable materials per household collected per route in the <br />"Before" and "During" periods for each pilot area. <br />10 DRAFT B1605 <br />