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Recycling Pilot Program Summary <br />"During" versus "Before." The single-stream routes yielded increased <br />percentages of paper compared to the same areas collected as dual-stream routes <br />in the "Before" period. <br />"During" versus "Before." The single-stream routes generated decreased <br />percentages of metals, glass and plastics compared to the same areas collected as <br />dual-stream routes in the "Before" period. <br />Dual-Stream <br />"During" versus "Before." The composition of materials collected in the <br />combined "During" dual-stream pilot areas was not significantly different from <br />the composition compared to the same areas in the "Before" period. <br />"During" versus "During." The composition of materials collected in each of the <br />"During" dual-stream pilot areas (Weekly, Two Bins, Education) were not <br />statistically different from each other. <br />Non-Targeted Materials <br />The percentages of non-targeted materials (at the curb) in the single-stream routes <br />were higher than the percentages of non-targeted materials found on the same <br />routes collected as dual-stream routes in the "Before" period. <br />"During" versus "During." The percentages of non-targeted materials in the <br />single-stream routes were higher than the percentages of non-targeted materials <br />found in the combined "During" dual-stream pilot routes. <br />The overall results from the analysis reflect that the composition of materials collected <br />for recycling changed significantly with single-stream but did not change significantly <br />with any of the dual-stream variations (increased frequency, increased capacity, <br />increased education). <br />Tonnages of aterial Collected and Processed for Recovery <br />The overall goal of this pilot program was to help the City refine its curbside recycling <br />program to capture more recyclable material. Thus, this section includes an analysis <br />of how much additional material was recovered in each of the tested pilot approaches. <br />As discussed in the Pilot Design and Methodology section, a key issue is how to <br />address material that is collected at the curb but is not ultimately recovered and <br />recycled. Such contamination or residuals falls into three categories: <br />Non-targeted materials, collected at the curb; <br />Processing residuals from the MRF; and <br />Contaminants in marketed product (e.g., in bales sold to end-markets). <br />Comparison of Tonnages Collected During Pilot Collection Routes <br />The first step in comparing the tonnages was to develop average gross weights (all <br />tonnages, including non-targeted materials) collected per route for each week of the <br />s 16os DRAFT g <br />