The Groundwaterreplenishment System

摘要

The Groundwater Replenishment (GWR) System, operated by the Orange County Water District (OCWD), is the world's largest water purification and reuse project of its kind. The new system increases Orange County's water independence by providing a locally controlled, drought-proof supply of safe, high-quality water. At full capacity, the GWR System generates enough pure water to meet the needs of 500,000 people. GWR System-purified water exceeds all state and federal drinking water standards and has water quality similar to distilled water. The GWR System takes highly treated wastewater that would have gone to the ocean and recycles it to produce 265,000 m~3/d of purified water. OCWD was formed in 1933 as a California Special District to manage the ground-water basin that underlies north and central Orange County. The groundwater basin supplies more than half of the water needs for 2.3 million residents in the service area. The Orange County Sanitation District (OCSD) is a partner in this project and is a wastewater collection and treatment agency serving 2.5 million residents and businesses.