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Attachment B <br />Addit�onal Discussion o� the UVMIRAA S�udy at its <br />Minneapolis I�RF� <br />Waste Management, Inc and its subsidiary, Recyc]e America Alliance (WM/RAA) <br />conducted a composition analyszs at its Twin Cities Material Recovery Facility (MRF} <br />located in Minneapolis. The stndy is entitled, Sumrn - Sin le-Sort Constituent <br />Test, is datad October 18, 2003, and was provided to the Project Team. <br />Purpose of Study - The report provides summary information resniting from the <br />sorting and ana�yses perfoxrned by WM/RAA at their Twin Cities MRF. The purpose <br />for the test was to determine the resulting rnateria� constiiuents resulting from single- <br />sort collection and processing. <br />Methodology - SingJe stream recyclabies loads from fourteen (14-} WMIRAA trucks <br />from nine (9) different cities were stockpiled for the test on Friday, October 17, 2003. <br />The total stockpile was 74.907 tons. The single stream recycling collection systems <br />utilized the standard WN1/R[��i lidded carts. RecycZahles were loaded into the truck <br />using sem�i-automated or fully automated collection vehicles. The tiVM/RILA report <br />states they ran the test on Saturday, October 18, 2003 as a single test batch, but using <br />normal operating procedures for their Twin Cities MRF. �racessed materials and <br />residuals weze collected and weighed to detem�ine m�alce-up. Operations and data <br />co�lection were witnessed by Mr. Dave Kohorst, Financial Analyst, acting iuu an <br />accounting role for the tabulation of data. <br />Findings - WM/RAA reparted that the resulting "Residue Fraction of Processed <br />Materials" from this iest as 5.95 percent. The WM/RAA Twin Cities MIt� is <br />comprised of fwo sequential processing systexns: the "single stream process system" <br />(i.e., screcns and sorting stations to recovez paper) and "containers process system" to <br />recover gIass, cans and plastic products. The residue is derived from unrecoverable <br />materials sorted from both sysiems, including bulky items, au classifier cyclo�ae <br />"fluff", unmarketable grit, and other trash. It also included floor sweepings. <br />WM/RAA stated that unrecoverable nnaYerials were defined as materials not targeted <br />for recycling at the Twin Cities MRF. These materials ve+ere comprised largeiy of <br />plastic bags, bulky items and matezials incorrectly placed in fihe recycling cart ratl�er <br />than the trash container by the resident. The VITM/RAA study categorized these iterns <br />as "residue" from plant operations, but shouId be better termed as "unrecoverable." <br />The WM/RAA report provided a separate breakdown of products and process residue <br />fronn both the single stream process system (i.e., "paper line") and the contai�er <br />process system ("paper Iine"). Paper products represented 74 percent of the total input <br />and the paper line produced about two percent residue of total input. Container <br />products represented 21 percent of the total input and the container line produced <br />�noros DRAF"T <br />