Supply and Demand

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

Northern California water industry leaders tour the FlorAbunda Nursery in the Elfin Forest area to see water use efficiency measures in place. Photo: San Diego County Water Authority

Water Management and Efficiency Highlight San Diego Tour

Officials from Northern California visited San Diego County this week as part of a tour focused on regional water use and reliability investments that have been touted as a national model of water management. San Diego County Water Authority General Manager Dan Denham welcomed about two dozen leaders at the start of the event, explaining […]

QSA-2003 Quantification Settlement Agreement-San Diego County Water Authority-IID-Colorado River

QSA: Landmark Conservation Pact Marks 20 Years of Water Security for San Diego

Twenty years ago, in October 2003, water officials from across the Southwest signed the largest water conservation-and-transfer agreement in U.S. history, the QSA, or Quantification Settlement Agreement. The agreement has provided decades of water security for San Diego County and benefits for numerous partners across the Southwest. In total, that pact supplies more than half […]

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Reliable Water Supplies Make San Diego Region Well-Prepared for 2024

Thanks to a decades-long supply diversification strategy and continued efficient use of water across the region, the San Diego County Water Authority announced that the region has reliable supplies to meet demands in Water Year 2024, which started October 1. Hydrologists use Oct. 1 to begin measuring the snow and rain that will help carry […]

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Desalination and Future of Water Supply in Southern California

The cutting-edge world of desalination and the future of water supply in Southern California is the topic for conversation and insight from water agency officials in a new podcast. The four distinguished guests are from San Diego County Water Authority, Eastern Municipal Water District, Las Virgenes Municipal Water District and South Coast Water District. Learn […]

The East County Advanced Water Purification project is making significant progress on construction toward its 2026 opening. Photo: East County AWP

East County Advanced Water Purification Project Progressing

The East County Advanced Water Purification project is progressing, with construction underway at multiple East San Diego County locations. The project will create a new, local, sustainable, and drought-proof water supply using state-of-the-art technology to purify East San Diego County’s recycled water. Construction for the East County AWP is expected to be completed in 2025, […]

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Opinion: Climate Change Will Undermine Quest by Fallbrook and Rainbow for Cheaper Water

The long-running debate over whether the Fallbrook and Rainbow communities should leave the San Diego County Water Authority to obtain cheaper rates ignores a very large elephant in the room — climate change. If the two rural communities cast their lot with Riverside County, their agricultural economy will depend upon the Colorado River and the State Water Project, both of […]

4S Ranch Water Reclamation Facility-CWEA 2022 Plant of the Year

OMWD Continues to Convert More Customer Meters to Recycled Water

The Olivenhain Municipal Water District continues to reduce demand for imported drinking water by converting additional customer meters within The Lakes Above Rancho Santa Fe community to recycled water for irrigation. The Lakes is a community in Rancho Santa Fe that will include 387 homes, large outdoor natural spaces, and several lakes, when fully developed. […]

Water Recycling Pipeline-Olivenhain MWD-April 2023

OMWD’s Recycled Water Pipeline Reduces Imported Water

A new recycled water pipeline in Encinitas is helping to reduce the region’s dependence on imported water supply. The Olivenhain Municipal Water District, or OMWD, constructed the Manchester Avenue Recycled Water Pipeline Project to expand the availability of recycled water within the City of Encinitas. Local, regional, state and federal officials celebrated the project‘s completion […]

The Vallecitos Water District's series of videos on using water wisely are being distributed nationwide through the EPA WaterSense program. Photo: Vallecitos Water District/YouTube

Millions Still Available to Help Low-Income San Diegans With Water Bills

A fund to help San Diego County residents pay their water bills still has $2.5 million sitting unclaimed. According to leadership of the nonprofit Metropolitan Area Advisory Committee on Anti-Poverty, or MAAC, which manages the fund, many people may not realize they qualify for assistance.

Hamid Pezeshkian of Flametree Farms in Vista is among 2,000 growers enrolled in the PSAWR program. Photo: Vallecitos Water District

Special Water Rates Program Reduces Costs for San Diego County Growers

The San Diego County Water Authority and 13 of its member agencies offer growers a special agricultural water rate program: providing lower-cost water in return for lower reliability. The Water Authority’s Board of Directors approved the Permanent Special Agricultural Water Rate Program (PSAWR) in 2020. It helps support commercial farms driving the economic engine of […]

Supply Allocation-Central Valley Project-Bureau of Reclamation

Reclamation Increases Central Valley Project 2023 Water Supply Allocations

The Bureau of Reclamation March 28, announced an increase in Central Valley Project 2023 water supply allocations. After below average precipitation in February, Reclamation announced a conservative initial water supply allocation for the CVP on Feb. 22. Additional atmospheric river systems have since boosted hydrological conditions and storage volumes, allowing for a more robust water supply allocation. […]

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EPA Financing for Carlsbad Desalination Plant Saves Water Ratepayers up to $54 Million

The U.S. Environmental Protection Agency has awarded a $170 million low-interest loan to reduce financing costs for environmental upgrades that enhance the Claude “Bud” Lewis Carlsbad Desalination Plant. U.S. Rep. Mike Levin, who represents coastal communities including Carlsbad, helped secure the funds that will save ratepayers up to $54 million compared to alternate financing strategies. […]

The Olivenhain Municipal Water District's award winning 4S Ranch Water Reclamation Facility celebrates its 20th anniversary in August 2023. Photo: Olivenhain Municipal Water District

Recycled Water Pipeline Benefits Olivenhain Municipal Water District Customers

A new recycled water pipeline is being tapped by Olivenhain Municipal Water District customers for landscape irrigation. Olivenhain Municipal Water District has successfully converted Westmont of Encinitas to recycled water for landscape irrigation. The assisted living facility is the first of many customers along the Manchester Avenue and South El Camino Real corridor to tap […]

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DWR, Reclamation Submit Request to Adjust Water Right Permit Conditions to Conserve Storage

Following the driest three-year period on record, California experienced one of the wettest three weeks in January. But now those extreme wet conditions have activated a water quality standard in the Delta that, coupled with the extended dry period since then, could result in a sharp reduction in the amount of water that can be […]

Water Authority Welcomes New MWD Board Chair Adán Ortega

The San Diego County Water Authority Board of Directors on January 26 welcomed Metropolitan Water District of Southern California Board Chair Adán Ortega, Jr. by hosting a reception for him to meet San Diego County’s community, civic and business leaders. Ortega took the helm of  MWD’s Board on January 10 as the first Latino chair […]