Liquid News

Syphon Reservoir Improvement Project


Improvements to the Syphon Reservoir will allow IRWD to maximize the use of recycled water throughout its service area, reducing dependence on imported water supplies.


Irvine Ranch Water District owns and operates one of the largest, most technologically advanced recycled water systems in the nation. Recycled water dramatically reduces demand for drinking water and currently makes up more than one-fourth of the District's entire water supply. It is a high-quality, drought-resilient s... Continue Reading »

Irvine Ranch Water District contractors are installing pipeline corrosion protection systems at eight locations along Laguna Canyon Road and Quail Hill Parkway. The work is a necessary part of the maintenance of local drinking water pipelines.

Project summary: The project involves drilling and excavation work, along with the installation of a new rectifier and anode well at eight locations, (noted in red in the map).

When: Mid-October, 2018, through mid-January, 2019.

Construction... Continue Reading »

Irvine Ranch Water District contractors are replacing 1,200 feet of recycled water pipeline along the west side of University Drive and through the intersection of University and Culver drives.

Project summary: The project involves the excavation of portions of University Drive (indicated in yellow) and Culver Drive (indicated in red). This work is necessary to replace the pipeline and to relocate it where it is more accessible.

When: Mid-September through November.

Project impact... Continue Reading »

Irvine Ranch Water District contractors will be upgrading the sewer line that runs along Michelson Drive from Jamboree Road east beyond Riparian View. Traffic will be heavily impacted by lane closures at construction areas as work is underway.

The project is expected to begin in early November, 2018, with road construction starting Nov. 26. Work is expected to continue into the spring of 2019.

Construction hours:


• From 9 a.m. to 3 p.m. Mondays through Fridays.<... Continue Reading »

IRWD owns and operates one of the most robust recycled water systems in the nation, with two water recycling plants, hundreds miles of purple pipeline, and thousands of metered customer connections. Vital to this system are four seasonal-storage reservoirs — Rattlesnake, San Joaquin, Sand Canyon and Syphon. The reservoirs are pumped full of recycled water from IRWD’s recycling plants during the cooler, wetter winter months when irrigation demands are low. The water is stored in the reservoirs, and then withdr... Continue Reading »

Annual Cleanup Draws More than 150 VolunteersA trio of discarded bicycle frames, the tattered arm of an over-stuffed sofa, a weather-worn soccer ball and hundreds of discarded cigarette butts and snack wrappers were among the items found during this year’s Annual Watershed Cleanup Day event sponsored...
A Refuge to Inspire Your LandscapeTake a trip to the San Joaquin Marsh and Wildlife Sanctuary—a hidden gem in Irvine. The RightScape demonstration garden surrounding the Visitors Center has more than three dozen plant varieties, each identified with a plant marker and QR code for...
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...