Irvine Desalter Project

Irvine Desalter Project

IDP 098A2779 x725A diversified water supply is a reliable water supply.  In the late 1980s, it was discovered that portions of the groundwater beneath Irvine has high salts levels because of the natural geology of the area and the history of agricultural use. The Irvine Desalter Project is designed to clean the elevated levels of salt in this previously untapped local groundwater thus adding to IRWD’s drinking water supply.

The Irvine Desalter Project consists of five wells located near the I-5 Freeway in Irvine.   Salty water is pumped from these wells and sent to the IDP treatment facility. The treatment process uses reverse osmosis, decarbonation and disinfection to make the water suitable for drinking purposes.  The purified water provides 5,100 acre feet or 1.6 billion gallons of drinking water, enough for 50,000 people, per year.

The IDP provides a local supply of water, ensuring a reliable source of water during drought conditions and for future generations.

Desalter Fact Sheet

Latest News

Happy to See Green? Thank Our Purple PipesLet’s be honest. We love our treelined streets, verdant medians and common areas that define the Irvine Ranch Water District. And while other communities are cutting back on their landscaping, ours continues to flourish. Since 1963, IRWD has been implementing a...
Chilling with Recycled Water: IRWD, UCI Save 80 Million Gallons of Drinking Water a YearUC Irvine and Irvine Ranch Water District officials toss ceremonial buckets of water into the cooling towers to kick off the new project. (Shown here, right to left, are UCI Associate Chancellor for Sustainability Wendell Brase, IRWD Board President Douglas...
How the IRWD Team Safeguards Your WaterThanks to all of the IRWD customers who joined us July 10 for our Tap Water 101 community workshop. If you missed it, check out our new 3-minute video, “Journey of a Water Sample.” You’ll tag along with real IRWD...