A CWA board vote Thursday, Feb. 22, approved the recommendation of the CWA’s Finance Planning Workgroup. The calendar year 2025 changes include apportioning 40% of the transportation charge as a Transportation Fixed Rate allocated to member agencies by a seven-year rolling average with the current volume-based Transportation Rate designed to recover the remaining 60% of the forecasted annual revenue requirement.
Amid rising costs and decreasing sales, San Diego County Water Authority (SDCWA) is navigating the complexities of water management by considering the sale of its costly desalinated water, while simultaneously exploring options for the expansion of its desalination capabilities.
For the second time in recent months, the San Diego County Water Authority is considering an innovative water transfer that could eventually deliver drought-resilient water supplies to South Orange County through the Moulton Niguel Water District and help combat increasing water rates for San Diegans.
Both districts have signed a Memorandum of Understanding MOU to begin discussions centering on the Water Authority transferring water supplies to Moulton Niguel, including from the Claude “Bud” Lewis Carlsbad Desalination Plant.
Agency leaders will determine the details, including when and how a transfer might take place.
The Moulton Niguel Water District serves more than 170,000 customers from Laguna Niguel to San Juan Capistrano.
Water Authority General Manager Dan Denham speaks at the Dec. 13 signing ceremony in Las Vegas, supporting a set of agreements to sustain the Colorado River and save money for San Diego County water ratepayers. Photo: San Diego County Water Authority
In December, the Water Authority completed a similar agreement to transfer water with the Metropolitan Water District of Southern California and the Imperial Irrigation District. It saves the Water Authority between $15 million and $20 million while helping to raise the level of Lake Mead.
“The San Diego region’s investments in water supply reliability are being used to protect local ratepayers from rising costs while offering solutions that benefit the entire Southwest,” said Water Authority Board Chair Mel Katz. “We appreciate Moulton Niguel’s vision to explore this concept and we look forward to fashioning a mutually beneficial agreement.”
Moulton Niguel’s 2020 Long Range Water Reliability Plan and Water Reliability Policy prioritize the development and phased addition of new drought-proof water supplies to sustain its service area during droughts, which have hit California with increasing frequency over the past three decades.
“Our Board is committed to making cost-effective investments to enhance water supplies that benefit our service area in dry years, and a potential partnership with the Water Authority is another piece of that plan. In the era of climate extremes, it’s in everyone’s best interest to find partnerships that maintain our economy and quality of life,” said Moulton Niguel Board President Duane D. Cave.
Over the past 20 years, the Water Authority has developed a nationally recognized portfolio of drought-resilient water supplies, including the nation’s largest seawater desalination plant in Carlsbad. Completed in 2015, the facility produces up to 56,000 acre-feet of water a year, meeting about 10% of the region’s water demand.
San Diego region’s per capita water use has dropped by more than 50% during the same time. The reduction in water use by consumers allows the Water Authority to collaborate with other water providers on solutions to climate-induced supply challenges.
In the sprawling urban tapestry that is Southern California, water – its abundance, scarcity, and distribution – often becomes a central narrative shaping the region’s destiny. Recently, San Diego has emerged at the forefront of a compelling chapter in this ongoing saga.
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 how these projects work, their impact on California’s thirst during dry times.
From coastlines to arid inland regions, seawater and brackish water desalination projects are popping up like never before. But how do they work? What is the environmental impact? And can they really quench California’s thirst during those dry times? Are they truly drought proof?
These four are each at the helm of a water agency contributing to this critical conversation: Dan Denham, General Manager of the San Diego County Water Authority; Joe Mouawad, General Manager of the Eastern Municipal Water District; David Pedersen, General Manager of the Las Virgenes Municipal Water District; and Rick Shintaku, General Manager of the South Coast Water District.
The Clean Energy Alliance Board of Directors approved a memorandum of understanding on July 27 that would bring the largest consumer of electricity within Carlsbad into the fold. The San Diego County Water Authority and Channelside, the company that owns the Carlsbad Desalination Plant, have an agreement that allows the water authority decision-making power on an electricity provider, according to a CEA staff report. The MOU, which is pending final approval later this year, would make the Clean Energy Alliance that provider.
As Arizona faces an ongoing mega-drought and a mounting water crisis, leaders are looking for ways to ensure Arizona’s water supply.
In 2023, Arizona will lose 20% of its water allotment from the Colorado River, and countless steps are have been taken by government officials in the state, with water conservation plans implemented by various cities.
The Carlsbad Aquafarm has been allocated a $230,000 grant to install and monitor native oyster reefs and eelgrass meadows along the shore of Agua Hedionda Lagoon near the strawberry fields, the Carlsbad desalination plant and the Encina power plant.
Oysters and mussels have been grown commercially in the outer lagoon since the 1950s, when San Diego Gas & Electric Co. dredged it to make it deeper and provide a constant source of seawater to cool the power plant.
When the nation’s largest desalination plant opened in Carlsbad, California, in 2015, people across the country were watching to see how it increased water supplies as groundwater dwindled, reservoirs dried up, and drought ravaged the Golden State.
Nearly 10 years later, the plant has demonstrated how seawater desalination can play a pivotal role in achieving water security.
Water bills in San Diego are about to go up, and that increase is due in part to planned upgrades at the Carlsbad Desalination Plant. Those upgrades are estimated to cost $274 million. The San Diego County Water Authority approved the upgrades to the plant’s seawater intakes at a board meeting on Thursday.
“This action by the board moves the Carlsbad Desalination Plant one step closer to meeting state marine life mandates,” said Water Authority Board Chair Mel Katz. “Staff has worked diligently to ensure that the costs are as low as possible while continuing to provide our region with a drought-proof source of water. We are thankful to have this resource when so much of the West is suffering from extreme drought, and we expect it will be increasingly valuable as climate change further disrupts California’s hydrology.”
The Water News Network is San Diego County’s source for water news and information.
