Alternative Water Sources
The Commission completed the 2013 Update of the Hawaii Water Reuse Survey and Report. This update reviews trends in recycled water use and covers any new or expanded reuse projects since 2004 . As part of this study, challenges that restrict the expansion of recycled water use are identified and recommendations made to address these difficulties.
The 2004 Hawaii Water Reuse Survey and Report (Report) was created to provide an overview of the current status of water reuse in Hawaii and to assist CWRM in assessing the potential for use of recycled water to meet non-potable water demands across the State. The Report represents a comprehensive inventory of wastewater reclamation facilities and existing users of treated effluent statewide. The Report also examines future opportunities for reuse projects and any obstacles to expanded utilization of recycled water.
Recognizing the increasing demand for non-potable water in Central Oahu and limited potable water sources in the region, the Commission initiated a discussion among stakeholders in Central Oahu to explore a regional solution to meeting irrigation water needs through the increased utilization of nonpotable water sources such as recycled wastewater and stormwater capture and reuse. This report identifies current and future sources and uses of non-potable water, strategies to match supply and demand, along with implementation and integration opportunities for using non-potable water for irrigation.
The video below is a presentation by Mr. Sheldon Hunt of Aqua Engineers on the potential use of R-1 treated wastewater and reclaimed surface water for agriculture, landscaping, irrigation, and recharge in central Oahu and Kunia to replace potable groundwater and stream water.
2005 Hawaii Stormwater Reclamation Appraisal Report
These reports document the U.S. Department of the Interior, Bureau of Reclamation appraisal investigations of potential stormwater reclamation opportunities in the State of Hawaii. These studies were performed to undertake a program to investigate and identify opportunities for water reclamation and reuse under Title XVI Program of Public Law 102-575, as expanded by Section 104(b) of the Hawaii Water Resources Act of 2000 (Public Law 106-566).