The Orange County Water District's service area covers approximately 350 square miles (910 km2) and the District owns approximately 1,600 acres (650 ha) in and near the Santa Ana River, which it uses to capture water flows for groundwater recharge.
The Orange County Water District was formed by an act of the California State Legislature in 1933.
[3] The Groundwater Replenishment System takes highly treated wastewater from the Orange County Sanitation District and purifies it using microfiltration, reverse osmosis and ultraviolet light with hydrogen peroxide.
The GWRS has been operational since January 2008 and initially produced up to 70 million gallons of water daily.
A 30-year lease agreement was approved in January 2013 to allow the district to construct an injection water well and well facilities at the Anaheim Regional Transportation Intermodal Center.