Treatment Plant Overview

Aerial View of Treatment Plant and Surrounding Area

First built in 1998 the Western Riverside County Regional Wastewater Authority (WRCRWA) Plant has the capacity to treat 14 million gallons per day (MGD) of wastewater. Following a recent expansion of the WRCRWA Treatment Plant, capacity to treat wastewater increased from 8 MGD to the now 14 MGD.

When the WRCRWA Treatment Plant was originally built, the area around the facility was comprised of dairy farms, a green waste composting facility, and the Santa Ana River; at the time, the WRCRWA Treatment Plant was built for the specifications required for the area. With the successful development in Eastvale, the dairies and composting facilities sold, and homes were built in their place.

Water Treatment

Wastewater is treated at a tertiary level (one of the highest treatment levels available) and is currently discharged into the Santa Ana River.

Besides providing health and welfare benefits the WRCRWA Treatment Plant will soon produce recycled water for local uses on parks, nurseries, and other outdoor spaces while reducing the region’s dependence on imported water. A recent Change of Use Order has been granted and future re-use of treated water will be available for non-drinking (non-potable) water use in the future.

Associated Cities & Groups

WRCRWA is a joint powers authority consisting of the cities of Norco and Corona, Jurupa Community Services District, Home Gardens Sanitary District, and Western Municipal Water District.

Cities and Groups Associated In Part of WRCRWA