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Recycling Pilot Program Summary <br />Public Works garage by City staff and waste and recycling professionals from the <br />metropolitan area. For each sample, nine categories of recyclable and four categories <br />of non - targeted materials were sorted and weighed. The categories are listed in Table <br />2 below. <br />Table 2 <br />City of Roseville <br />Composition Analysis Categories <br />Recyclable Materials <br />1. Old Newspaper(ONP) <br />2. Household Office Paper and Mail (HOPM) <br />3. Old Magazines /Catalogs (OMG) <br />4. Phone Books <br />5. Uncoated Old Corrugated Cardboard (OCC) and Brown Paper Grocery <br />Bags <br />6. Old Boxboard (OBB) <br />7. Metal Cans <br />8. Glass Bottles and Jars <br />9. Plastic Bottles <br />Non - targeted Materials' <br />1. Beer, Pop & Water Boxes <br />2. Other Paper Trash <br />3. Plastic Bags and Other Film Plastic <br />4. Other Trash (i.e., non - recyclable items such as twine, foam packaging, <br />ceramics, mirrors, aerosol cans, medical waste, etc.) <br />Defined by the City and outlined in public education pieces and explained to residents by City customer <br />service staff answering telephone inquiries. <br />The data from the sorting events were entered into R. W. Beck's specially designed <br />waste composition model, which uses 90% confidence intervals to measure <br />statistically significant differences (see the analysis in Appendix B). In some cases, <br />data from the pilot areas were aggregated to increase the number of samples for <br />statistical analysis. <br />Statistical Analysis <br />The statistical analysis measured if there was a statistically significant change in the <br />percentages of the various recyclable materials, and /or the actual weight of certain <br />materials in the pilot areas. The following is a summary of key findings from the <br />Project Team's analysis. <br />Single- Stream <br />The following comparisons were statistically significant: <br />8 DRAFT B1605 <br />