Water reclamation system saves energy & water costs
Gateway Village, a 15-acre mixed-use development complex in North Carolina—designed to bring businesses, retailers, restaurants, new residents and visitors to the area—was developed through a joint venture between Bank of America and Cousins Properties. The complex is home to three office towers totaling more than 1 million sq ft of class A office space. In late 2007, North Carolina and a large portion of the southeastern U.S. endured an exceptional drought that prompted water restrictions across the region.
During this period, a meeting took place between Cousins Properties, property manager for Gateway Village, and its HVAC water management consultant, Aqualine Water Treatment Products of Davidson, N.C. The drought conditions and subsequent water restrictions had heightened awareness of the availability and access to clean water. At the meeting, the idea of using reclaimed non-potable groundwater from the site for cooling tower makeup was addressed.
Shortly thereafter, Cousins Properties began pursuing Leadership in Energy and Environmental Design (LEED) Gold certification for Existing Buildings: Operations and Maintenance through the U.S. Green Building Council. A major element in the pursuit of this certification was potable water demand reduction. Cousins Properties turned to Aqualine for a solution to manage the quality of reclaimed water removed from the building’s foundation for the cooling tower system.
Since the system was commissioned in early July, the cooling tower has used more than 1 million gal of groundwater. As a result, the process has provided a redundant water source, reduced the energy demand to deliver potable water, assisted in achieving the building’s LEED Gold certification and reduced the makeup water costs to the owner. Robert O’Donnell, partner at Aquanomix, said, “As a provider of integrated water reclamation solutions, I’m excited to have delivered such a bold return on the social, environmental and economic initiatives to Cousins Properties in our hometown of Charlotte, N.C.”