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2005-07-26_PWETC_AgendaPacket
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2005-07-26_PWETC_AgendaPacket
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3/22/2010 3:57:34 PM
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Commission/Committee
Commission/Authority Name
Public Works Commission
Commission/Committee - Document Type
Agenda/Packet
Commission/Committee - Meeting Date
7/26/2005
Commission/Committee - Meeting Type
Regular
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<br />The original plan called for measuring loads to determine the percentage of paper and containers, but one of <br />the Waste Management two-stream trucks had a divider wall that continually failed when the load was <br />tipped. Repeated attempts to fix the wall during the testing period were unsuccessful. Percentages used for <br />this study are from data generated during the composition sorts. <br /> <br />Occasionally the two-stream trucks reached capacity before a route was completed. If fewer than thirty stops <br />remained, Roseville and Waste Management agreed to do an estimated weight for the remaining stops. The <br />weight from the first load was divided by the number of stops to determine the pounds per household from <br />the first load. That amount was then multiplied by the remaining stops to get an estimated weight for those <br />stops. The actual weight from the first load and the estimated weight for load were then added to <br />get a gross weight for the route. <br /> <br />Composition Sorts <br />For one week of the "Before" and two weeks of the <br />"During" period, the City conducted composition sorts of <br />representative samples of each load, using a <br />developed by BecklKrivit for the pilot study. <br />Single-stream loads were tipped as is. Two-stream trucks <br />tipped paper and containers separately. In the cases where <br />the Waste Management truck divider wall failed, crews <br />manually separated the materials into distinct piles before <br />mIxmg. <br /> <br />Roseville recruited numerous recycjitlg <br />coordinators and recycling officialStol~fl]J with <br />the composition sorts. For eaphsample,tline <br />categories of recyclable andf()llrF~~egoriss of <br />non-targeted materials were sorted and Weighed. <br /> <br /> <br />Figure Seven <br />Composition Sort <br /> <br />.>. Table 4 <br />Analysis Categories <br />1. Old Newspaper (ONP) .... 8. Glass Bottles and Jars <br />2. Household Officepaperand Mail (HOPM) 9. Plastic Bottles <br />3. Old Magazines/Cat"logs (OMG) 10. Beer, Pop & Water Boxes <br />4. Phone Books 11. Other Paper Trash <br />5. Uncoated Old Corrugated Cardboard (OCC) 12. Plastic Bags and Other Film Plastic <br />and Brown Paper Grocery Bags <br />6. Old Boxboard (OBB) 13. Other Trash (I.e., non-recyclable items <br />7. Metal Cans such as plastic tubs, foam packaging, <br /> ceramics, mirrors, aerosol cans, <br /> medical waste, etc.) <br /> <br />Not all MRFs include beer, pop and water cases - also called "wet strength" or "carrier stock" in their list of <br />non-targeted materials. However, paper mills contacted for this study said that if a bale of recyclable paper <br /> <br />15 <br />
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