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52 <br />General Engineering and Environmental Management Services <br />Los Angeles County Sanitation Districts, California <br />HDR provided planning, design and construction support services to the districts on <br />this 4,400- ton - per -day materials recovery and transfer station. Initially, HDR prepared <br />preliminary facility designs and operational evaluations in support of the district's <br />environmental review process. Owned and operated by the County Sanitation District <br />No. 2 of Los Angeles County, the facility will enable the Districts to receive and <br />transfer solid waste, and sort select loads of commercial waste to recover <br />recyclables. <br />Completed in July 2005, the facility now processes 250 tons of waste per day. With <br />slight adjustments and quick additions, Puente Hills Materials Resource Facility (PHMRF) could reach a maximum <br />capacity of 4,000 TPD and recover more than 600 TPD. The project includes a 210,000- square -foot enclosed materials <br />recovery and transfer building. HDR prepared the specifications for the procurement of the materials recovery equipment <br />in phases, with the first phase designed to process 500 TPD of mixed commercial waste. The tipping floor and transfer <br />area is being designed to receive and transfer the residuals from the full 4,400 tons per day. The transfer ports are being <br />designed to retrofit with compactors should it become necessary in the future. <br />The project also includes entry and exit scale facilities, a maintenance facility for station rolling stock, a fueling station <br />and a public recycling drop off facility. The project also includes a two -story administration building with an attached <br />walkway to PHMRF to allow tours, which can safely view the operations. Great effort is given to keeping noise and <br />pollutants away from the neighbors and out of public view. The facility was built green with recycled steel, low- emission <br />equipment and high - efficiency HVAC. The adjacent Puente Hills Landfill has 100 miles of gas collection piping and the <br />world's largest landfill gas energy facility, which provides almost all of the MRF's power. <br />The facility was awarded the SWANA 2006 Gold Award of Excellence. <br />City of Phoenix, Arizona <br />Faced with a fast - growing population, Phoenix needed to quickly replace Skunk <br />Creek Landfill, one of the city's last urban facilities. Once closed, waste would have <br />to be shipped from the city's northern neighborhoods to a facility 60 miles away. <br />Without a station to separate waste and recyclables, shipping could be cumbersome <br />— and costly. The solution was the 450 -acre, $40 million City of Phoenix North <br />Gateway Campus, including the 4,000 tons - per -day North Transfer Station and <br />Material Recovery Facility (NTS -MRF). The facility has an administrative building, <br />two scale houses, a maintenance facility and fueling station. An IT communications <br />center, materials recovery line and commercial transfer areas were drawn into the design. Top - loading ports were built to <br />accommodate expansion at NTS -MRF, which can now process 320 tons of waste per day. HDR and partner JRMA <br />provided programming, design and construction services. To withstand the harsh heat and relentless sun, the 42 -acre <br />facility had to have a durable shell and efficient operations to conserve electricity and water. The expansive NTS -MRF, <br />including the 180,000- square -foot transfer facility where recyclables are first separated from waste, lights its exteriors <br />with power generated from a solar grid. Long roof overhangs shade interiors and reduce cooling needs while highly <br />reflective and emissive roof paint minimizes heat radiation and improves HVAC performance. More than 90 percent of <br />structural steel used in the NTS -MRF is recycled. <br />The NTS -MRF was carefully erected between native desert floodplains with a minimal footprint and a profile evoking the <br />desert landscape. Displaced native plants, including the protected Saguaro cactus, were relocated to preserve the <br />surrounding desert habitat and lessen water needed to nourish non - indigenous plants. <br />Page 37 l DR <br />