Supply and Demand

News updates on the regional water supply and water use, including current reports, future projections, and long-term planning.

Pure Water San Diego is anticipated to provide 50% of the City of San Diego's water supply by 2035. Photo: Courtesy City of San Diego Water Reuse Progress

Water Reuse Projects Highlight Sustainable Building Week

Three potable water reuse or recycling projects under development in the San Diego region were highlighted this week during the San Diego Green Building Council’s inaugural “Sustainable Building Week San Diego.” The Sustainable Building Week programs focused on sustainable practices and creating collaboration and networks among San Diego professionals involved with environmental stewardship and green […]

Drought-Water Supply Diversity-investments

Drought: Why Water Supply Diversity is Critical

Drought is back in California. Federal and state agencies are warning of potential water shortages in the months ahead. Because of investments made by the San Diego County Water Authority, its member agencies and the region’s water ratepayers, San Diego County is safe from the threat of multiyear droughts. “We are now facing the reality […]

Pure Water Oceanside-Potable Reuse-Sustainability Sustainble Building Week

SD Sustainable Building Week Features Water Reuse Projects

Representatives from three potable reuse projects under development in San Diego County will provide project updates during the inaugural “Sustainable Building Week San Diego” at 11 a.m. on Tuesday, April 13. Hosted by the San Diego Green Building Council, Sustainable Building Week offers free virtual events from April 12 – 16 addressing sustainable practices and […]

Crane lifts valve from roof

Heavy Metal: Facility Upgrades Enhance Flexibility of Regional Water System

San Diego County Water Authority crews recently replaced two pickup truck-sized valves at the agency’s Pressure Control and Hydroelectric Facility in central San Diego – each valve weighing about 35,000 pounds. The replacement project took place during a scheduled shutdown of a portion of Pipeline 5, which delivers untreated water throughout the county. The pressure-control […]

Urban Water Management Plan-San Diego County Water Authority

Water Authority Plan Shows Sufficient Supplies Through 2045

The San Diego County Water Authority’s draft 2020 Urban Water Management Plan was released for public review today. The plan highlights how regional investments in a “water portfolio approach” to supply management and a sustained emphasis on water-use efficiency mean that San Diego County will continue to have sufficient water supplies through the 2045 planning […]

Pure Water Oceanside-Potable Reuse-Sustainability Sustainble Building Week

Water Authority Board Supports Regional Potable Reuse Projects

The San Diego County Water Authority’s Board of Directors today unanimously approved a formal resolution reaffirming its longstanding support for potable reuse and water recycling projects developed by local member agencies across the region. “Projects such as Pure Water San Diego, Pure Water Oceanside and the East County Advanced Water Purification Project are critical to […]

City of Oceanside-Pure Water Oceanside-water recycling

Pure Water Oceanside Project Reaches Milestones

Pure Water Oceanside construction remains on schedule for completion in 2022, with several significant milestones recently completed. The Oceanside project will purify recycled water to create a new, local source of high-quality drinking water that is safe, drought-proof and environmentally sound. “Construction has impacted many residents and businesses,” said Cari Dale, City of Oceanside water […]

Water-deliveries-Hauck Mesa-Storage Reservoir-

New Reservoir to Protect Local Drinking Water Deliveries in North County

A major construction project to improve drinking water supply reliability in North San Diego County will start in February after the San Diego County Water Authority’s Board of Directors today approved an $11.4 million contract for the work to Pacific Hydrotech Corporation of Perris, Calif. The Hauck Mesa Storage Reservoir project includes demolition of an […]

A Helix staff member installs parts in the ozone generator. Photo: Helix Water District

Helix Water District Reduces Plant Upgrade Costs

When the Helix Water District received contractor estimates as high as $3.5 million to upgrade the R.M. Levy Water Treatment Plant’s ozone power supply units and generators, it decided to perform the upgrade in-house. With Suez Water Technologies provided engineering and equipment, Helix employees incorporated new technology and innovative installation practices. The proof of concept […]

dry start-snowpack survey-water year-Guzman-primary

Dry Start to California’s Water Year

A dry start to California’s water year is reflected in the season’s first snow survey of the Sierra Nevada snowpack. The statewide snowpack is 52% of average for Dec. 30. On average, the Sierra snowpack supplies about 30% of California’s water needs. The California Department of Water Resources manual survey at Phillips Station recorded 30.5 […]

Lake Jennings-

Water News Network Top Stories of 2020

The Water News Network top stories of 2020 reflect the San Diego region’s interest in water conservation, the environment and efforts to diversify water supply sources. But the year was dominated by the coronavirus pandemic, which impacted water infrastructure and operations. As one of essential sectors of the economy, the water and wastewater industry took […]

Desal Plant-5th anniversary-Carlsbad-desalination-primary

Carlsbad Desalination Plant Celebrates 5th Anniversary

The Claude “Bud” Lewis Carlsbad Desalination Plant is celebrating its fifth year of operation this month. More than 65 billion gallons of water from the plant have provided a sustainable and reliable supply to businesses and residents of San Diego County since December 2015. The Carlsbad Desalination Plant produces more than 50 million gallons of […]

The Miramar Reservoir dam under construction in 1960. The reservoir marks its 60th anniversary i 2020. Photo: Jeff Pasek, City of San Diego

Miramar Reservoir Marks 60 Years of Service

For 60 years, Miramar Reservoir has been an integral part of the City of San Diego’s drinking water system and offers San Diegans a popular recreational area. Now, the reservoir is being called into service to play a vital part in San Diego’s future Pure Water system to sustain a reliable water supply. The City […]

2020 Urban Water Managment Plan

2020 Urban Water Management Plan Underway

An update to the plan for meeting the region’s long-term water needs is under development by the San Diego County Water Authority, in collaboration with its 24 member agencies. Once completed, the Water Authority’s 2020 Urban Water Management Plan will serve as the long-term guide to ensure a reliable water supply that sustains the region’s […]

Pure Water San Diego Associate Engineer Anthony Van guides a new virtual tour of the demonstration facility. Photo: City of San Diego

Pure Water San Diego Launches Guided Virtual Tour

The City of San Diego’s Pure Water Demonstration Facility public tour is now available as a virtual tour. A new video provides an up-close look at the technology behind the water purification plant. In-person tours are on hold due to the coronavirus pandemic and will resume once it is safe to do so. Since opening […]