Waimea Wasterwater Plant Expansion

In November 2009, the County of Kaua‘i selected Aqua Engineers to upgrade and expand the County’s Waimea WWTP.  The upgraded Waimea Plant uses state of the art filtration systems and clean energy technology such as a photovoltaic system for optimal service and cost efficiencies.  The plant’s treatment capacity will more than double, to 700,000 gallons per day from 300,000 gallons per day.  
The U.S. Environmental Protection Agency (EPA) recognized the Waimea Wastewater Treatment Plant (WWTP) expansion project with the 2010 PISCES award (Performance and Innovation in SRFs Creating Environmental Success).  The award recognizes successfully designed projects that further the goal of clean and safe water with exceptional planning, management, and financing. DOH officials noted that the Waimea project was exceptionally green, citing its water and energy efficiency and sustainability practices.
The expanded and upgraded plant produces a high quality treated wastewater effluent (R-1), which will be a valuable resource for Kaua’i’s master planned and growing Westside community.  The water will be used for diversified agriculture, parks, school fields and a future golf course.  This benefit will reduce the county’s reliance on potable water sources for irrigation.  The project also has created jobs for local contractors, bringing significant long-term employment opportunities to Kaua‘i.