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Waste Processing and Landfilling <br />The Ramsey /Washington County Resource Recovery Project (RRP) traces its history to a landfill that <br />polluted groundwater in the late 1970s. The two counties jointly managed this landfill. After the <br />pollution was discovered, county commissioners decided that there must be a better way to handle <br />waste. This led to recovering energy from waste, and later to joint work on waste education and <br />organics recovery. Processing waste to recover materials and energy is one of many tools in the waste <br />management hierarchy used to reduce risk to health and the environment. <br />In 1987, both counties entered into a 20 -year agreement with Northern States Power Company, and <br />later NRG Energy, Inc., to process waste into fuel (known as refuse - derived fuel or RDF) and recover <br />metals from waste to sharply reduce the amount of waste being landfilled. As the 20 -year agreement <br />with NRG Energy, Inc. was drawing to a close, the counties saw an opportunity to further explore a shift <br />to less government involvement and a more market -based approach for the delivery and processing of <br />waste at the Newport facility. The counties have worked with Resource Recovery Technologies, Inc. <br />(RRT), through a 6 -year Processing Agreement since 2007. In accordance with the processing <br />agreement, RRT has the responsibility to secure waste by contracting with haulers and to continue <br />production of RDF. The RRP places a heavy emphasis on minimizing the counties' dependence on <br />landfills. <br />Since 1987, most of the waste generated in Ramsey and Washington Counties that hasn't been recycled <br />has been delivered to the Resource Recovery Facility in Newport, Minnesota. Most of the waste is <br />delivered by licensed waste haulers, but citizens also deliver waste to the facility. The RDF produced at <br />RRT- Newport is delivered to Xcel power plants in Red Wing and Mankato and sometimes to Great River <br />Energy in Elk River. Metals are recycled locally. The remaining residue is landfilled. <br />Currently, waste delivered to the Resource Recovery Facility is weighed at the scale house, dumped onto <br />the tipping floor, and fed into one of two processing lines. An oversized bulky waste shredder is used as <br />needed to shred items too large to be processed directly through the processing lines. Non - processible <br />waste (as defined in the Service Agreement) and waste delivered in excess of processing capacity is <br />transferred to a landfill. Small amounts of other materials, such as car batteries and tires, are <br />sometimes found in the waste and separated by RRT for proper management. Waste is shredded in a <br />large hammermill, ferrous metals are removed by magnets, aluminum is removed with an eddy- current <br />separator, and the waste is sorted using a series of screens and blowers. The result is four waste <br />streams: 1) RDF, primarily composed of lightweight materials; 2) ferrous metals recovered for recycling; <br />3) aluminum recovered for recycling; and 4) residue, comprising the remaining materials. <br />The Processing Agreement between the RRP and RRT requires RRT to manage and make available to <br />residents of the two counties a location for depositing waste. Residential waste has been accepted at <br />the Newport facility since the facility's inception. (Prior to 2009 RRT also provided for a drop -off site for <br />citizen waste at the St. Paul Transfer Station; RRT's arrangement with the transfer station terminated in <br />2009.) A total of 1,081 tons of citizen waste was received in 2010, compared to 1,051 tons in 2009. <br />Under the Processing Agreement, RRT is responsible for contracting with waste haulers for a supply of <br />waste, assuring that at least 280,800 tons per year of waste are under contract, and meeting certain <br />performance guarantees. RRT has entered into contracts with 79 haulers through 2012 and has met the <br />minimum tonnage requirement. <br />In 2010, a total of 303,703 tons of waste from Ramsey and Washington counties was delivered for <br />processing by haulers and citizens. This tonnage is a slight decrease from the 2009 amount of 317,589 <br />tons. The long -term trends in both waste delivered and processed is shown in Figure 5. RRT- Newport is <br />Ramsey County Solid Waste Master Plan 2011 -2030 Page 143 <br />Approved by the Ramsey County Board of Commissioners on 3120112 <br />