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e ix <br />City o oseville <br />Analysis of Processing esiuals <br />The project team of R. W. Beck and Dan Krivit and Associates (Project Team) <br />completed a "desk-top" analysis of residuals as produced from the Waste <br />Management, Inc. (WM) materials recovery facility (MRF) in Minneapolis in relation <br />to the City of Roseville's (City) curbside recycling pilot collection study. This <br />analysis of processing residuals is the Project Teams' analysis of available data on the <br />issue of processing residuals given that there were no independent measurements of <br />outputs from the WM Minneapolis MRF. <br />This analysis is divided into the following sections: <br />Background/Problem Statement <br />Available Data from the City of Roseville Pilot Project <br />^ Summary of WM Study at its Minneapolis MRF <br />^ Other Available Data <br />^ Policy Implications <br />Recommendations for Additional Study <br />Bibliography of References Cited <br />Attachment A-1 -Primer on Defmitions <br />Attachment A-2 -Additional Discussion of the WM Study at its Minneapolis <br />MRF <br />Attachment A-3 -Excerpts from the City of Shoreview Recycling Contract: <br />Processing Residuals Requirements <br />c ro <br />Many communities are considering changing their recycling programs to single-stream <br />systems. The City of Roseville conducted a pilot collection study in 2004 to test the <br />residents' response to a variety of collection design changes, including two pilot routes <br />testing single-stream recycling. One of the key components in quantifying the overall <br />impacts of collection design choices is the need to estimate the change in "processing <br />residuals from the MRF" as one indicator of environmental impacts. <br />Changing a collection design impacts many system variables: <br />^ Overall participation may increase or decrease due to increased convenience <br />(e.g., less sorting, wheeled carts); <br />B 1605 <br />