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80 www. bus- ex. com DECEMBER 09

roofs in the community are green roofs. Despite time constraints, Millennium, the developer, moved the work forward according to schedule due to the high level of cooperation among the 40 consulting firms and 300 to 400 people working on the design phase of the project, not to mention the 10,000 workers. Over the last two years, Millennium issued over 9,000 site access passes for personnel, and Bayley reports that at any one time there were no fewer than 1,500 workers onsite. Before Millennium Water will be used as a residential community, it will house about 2,800 international athletes participating in the 2010 Olympic and Paralympic Winter Games. Bayley explains that Millennium has agreed to allow the City of Vancouver and VANOC ( the Vancouver Organizing Committee) to use the site as the Vancouver Olympic Village from October 31, 2009, through March 31, 2010, when the buildings will be returned to the developer. " The carrying costs of the project while used as the Olympic Village, estimated to be over $ 50 million, are being borne by the developer," he reports. In addition to the developer, Millennium Development Corporation, the project's principal participants include Merrick Architecture, gBL Architects, Erickson/ Milkovich Architects, IBI Group, ITC Construction and Metro- Can Construction. Bayley is chronicling the progress of this very large and historic project in a book called The Challenge Series, available online at www. thechallengeseries. ca. It documents the vision, planning, design and construction of Millennium Water and the 2010 Vancouver Olympic Village and is a resource offered to educate others seeking to create opportunities in sustainability. world," Bayley reports. " In celebration of the system, we built chimneys in the shape of a hand, and on top of the flues are fingernails that light up green when the project is using sewer heat and red when the project uses natural gas." Bayley initially raised a lot of eyebrows when he proposed installing radiant heating and cooling systems in the ceilings, but he obtained the support of the developer. " The Olympics scheduling demands really pushed us away from talking about it to getting it done," Bayley says. " This choice created other passive design elements we had to incorporate, such as improving wall performance, glazing and ventilation systems." Water was another sustainability focus. " We save 40 to 50 percent of the potable water requirements for a project this size," reports Bayley. All rainwater on the site is gathered and stored in cisterns under each of the parcels and is used for flushing toilets. Rainwater in the streets is gathered and routed to nearby Hinge Park, where it circulates through a pond there and drops sediment before heading into False Creek. This system significantly reduces the amount of water sent into the sewer system. The project involving the 64 senior units is now a net-zero initiative. By enhancing the physical characteristics of that building, the overall energy demand was reduced by about 40 percent, reports Bayley. " We also installed a full series of heat recovery and heat generation systems. The thermal hot water we generate on the roof systems is sold to the district energy system." The goal is to achieve LEED Gold certification for all the buildings, and the community center will aim for LEED Platinum certification. About 50 percent of all the Millennium Water DECEMBER 09 www. bus- ex. com 81