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Agency Profile
Inland Empire Utilities Agency (IEUA) was formed on June 6, 1950, with the mission to supply supplemental water to the Chino Basin. Since then, IEUA has expanded its areas of responsibility from a supplemental water supplier to a regional wastewater treatment agency, with domestic and industrial disposal systems and energy recovery/production facilities. In addition, IEUA has become a recycled water supplier, biosolids/compost provider and continues as a leader in water quality management and protection.
With a dedicated team of 308 professionals, IEUA operates five regional water-recycling facilities that treat approximately 60 million gallons of wastewater per day, providing high quality recycled water that is available for industrial, agricultural and landscape irrigation and groundwater recharge. IEUA operates owns a composting facility, a manure digestion facility, several domestic and industrial trunk and interceptor sewer lines, and operates the Chino 1 Desalter.
IEUA provides these services to the Cities of Chino, Chino Hills, Fontana, Montclair, Ontario, and Upland as well as to the Cucamonga Valley and Monte Vista Water Districts and the Water Facilities Authority.
Serving the Public
A five-member Board of Directors is elected to represent IEUA’s 850,000 residents. Each board member is elected by Division to serve a four-year term.
- Division 1 Upland/Montclair
- Division 2 Ontario
- Division 3 Chino/Chino Hills
- Division 4 Fontana
- Division 5 Rancho Cucamonga
IEUA has one representative on the Metropolitan Water District’s Board of Directors and three representatives on the Santa Ana Watershed Project Authority Commission.
FACILITIES
Administrative Headquarters
IEUA’s is the first public agency in the nation to receive the Platinum rating from the U.S. Green Building Council’s Leadership in Environmental and Energy Design LEED™. IEUA’s administrative headquarters takes water and energy conservation to new levels. The extensive use of recycled materials is seen throughout the interior and exterior of the headquarters complex.
Regional Plant No. 1 (RP-1)
Located in the City of Ontario near the intersection of Highway 60 and Archibald, RP-1 treats an average flow of 36 million gallons per day (mgd) of wastewater. A portion of the recycled water is used to irrigate neighboring Whispering Lakes Golf Course and Westwind Park. Recycled water from RP-1 is also used in the Prado Park Lakes. The methane gas produced during the digestion process is used to power co-generators. RP-1’s generators supply enough energy to operate the entire plant – of which 60% comes from the digestion of the methane gas.
Regional Plant No. 2 (RP-2)
Located in the City of Chino at El Prado Road and Pine Avenue, just east of the 71 freeway, RP-2 works in tandem with RP-5 and CCWRF. Liquid wastes are treated at RP-5 and CCWRF and the solids removed from the liquid are transferred via underground pipelines to RP-2 for anaerobic stabilization and subsequent processing at the Co-Composting Facility.
Carbon Canyon Water Recycling Facility (CCWRF)
Located in the City of Chino, CCWRF has been in operation since May 1992. CCWRF treats an annual average flow of 9 million gallons per day (mgd) of wastewater. A portion of the recycled water is used to irrigate Ruben S Ayala Park and golf courses. Other uses include crop irrigation by local farmers, industrial use, and groundwater recharge.
Regional Plant No. 4 (RP-4)
Located in the City of Rancho Cucamonga at the intersection of Sixth Street and Etiwanda, RP-4 has been in operation since 1997. RP-4, which treats an annual flow of 7 million gallons per day (mgd) has an ultimate build-out of 28 mgd. RP-4 works in conjunction with RP-1 to provide recycled water to users within the service areas of RP-1 and RP-4.
Regional Plant No. 5 (RP-5)
Located immediately east of the Inland Empire Utilities Agency’s Administrative Headquarters in the City of Chino, RP-5 has been operation in March 2004. The first phase of RP-5 is designed to treat 15 million gallons per day (mgd) of wastewater. Ultimately, RP-5 will treat 60 mgd of wastewater and process 68 mgd of solids combined from RP-5 and CCWRF.
Regional Plant No. 5 Solids Handling Facility
The Regional Plant No. 5 Solids Facility is one of the largest commercial systems in the United States to convert dairy cow manure into renewable energy. This innovative project is comprised of an anaerobic digester that process manure from dairy cows and convert this material into biogas (methane) generating a clean renewable electric energy. The power from this project is used to power the Chino Basin 1 Desalter which provides clean drinking water annually to 35,000 families in the communities of Chino, Chino Hills, Ontario and the Jurupa Community Service District.
Composting Facility
The fully enclosed Inland Empire Regional Composting Facility is a joint partnership with the Los Angeles County Sanitation District. The facility composts a variety of organic residuals, which have a high level of nutrient value for horticultural and agricultural uses in an environmentally responsible manner.
Chino Basin 1 Desalter
Located in the City of Chino at Euclid and Kimball Avenue, the Chino Basin 1 Desalter produces 14 million gallons per day of high-quality drinking water, serving the water needs of approximately 35,000 people. Groundwater pumped from 14 wells throughout the Chino Basin is pumped to the Chino Basin 1 Desalter. Once there, a desalination process uses reverse osmosis technology to remove salt and nitrates from the water, drinking it to drinking water standards. This purified, high quality water is then pumped to the municipal water supply systems for the Cities of Chino, Chino Hills, Ontario, Norco and the Jurupa Community Service District.