Headquarters

6075 Kimball Avenue
Chino, CA 91708

The Agency’s headquarters buildings were the first and largest public buildings to receive the Platinum rating from the U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED™) in 2003.

Learn More

Regional Water Recycling Plant No. 1

2662 East Walnut Street
Ontario, CA 91761

Regional Water Recycling Plant No.1 (RP-1) is located in the city of Ontario has undergone several expansions to increase the design hydraulic domestic sewage (wastewater) treatment capacity to 44 million gallons per day.

Learn More

Regional Water Recycling Plant No. 2

16400 El Prado Road
Chino, CA 91710

Regional Water Recycling Plant No.2 (RP-2) is located in the city of Chino has been in operation since 1960. The plant operated both liquids and solids treatment sections until 2002, when RP-5 was constructed to handle the liquids treatment.

Learn More

Regional Water Recycling Plant No. 4

12811 6th Street
Rancho Cucamonga, CA 91739

Regional Water Recycling Plant No.4 (RP-4) is located in the city of Rancho Cucamonga and has undergone an expansion to increase the design hydraulic domestic sewage (wastewater) treatment capacity to 14 million gallons per day.

Learn More

Regional Water Recycling Plant No. 5

6063 Kimball Avenue
Chino, CA 91708

Regional Water Recycling Plant No.5 (RP-5) is located in the city of Chino and has a hydraulic domestic sewage (wastewater) treatment capacity of 16.3 million gallons per day, which includes 1.3 million gallons per day of solids processing returned from RP-2.

Learn More

Carbon Canyon Water Recycling Facility

14950 Telephone Avenue
Chino, CA 91710

Carbon Canyon Water Recycling Facility (CCWRF) is located in the city of Chino and has been in operation since 1992. The design hydraulic domestic sewage (wastewater) treatment capacity is 11.4 million gallons per day.

Learn More

Chino Creek Wetlands & Educational Park

15975 El Prado Road
Chino, CA 91708

The Chino Creek Wetlands and Educational Park (CCP/Park) is located adjacent to the IEUA HQ in Chino. The 22 acre park opened in 2007 and was partially funded by a state grant from the State Water Resources Control Board (SWRCB).

Learn More

Chino Desalters

6905 Kimball Avenue
Chino, CA 91708

The Desalters were established to treat contaminated groundwater in the southern portion of the Chino Basin, and to help the Chino Basin Watermaster achieve “hydraulic control” of the basin to stop the flow of contaminated groundwater into the Santa Ana River.

Learn More

Inland Empire Regional Composting Facility

12645 6th Street
Rancho Cucamonga, CA 91739

The Inland Empire Regional Composting Facility (IERCF) was constructed in 2007 under a Joint Powers Authority (JPA) agreement between the Inland Empire Utilities Agency (IEUA) and the Los Angeles County Sanitation Districts (LACSD).

Learn More

Water Quality Laboratory

6075 Kimball Avenue
Chino, CA 91708

The Water Quality Laboratory was built adjacent to Regional Water Recycling Plant No. 5 (RP-5) in Chino to manage water quality testing, enhance performance and improve the process of sample analysis.

Learn More