Lake Poway’s water level is lower today, but it isn’t due to the current heatwave. The lake is being temporarily reduced to complete a planned maintenance project to replace a transducer.
Lake Poway serves as the City of Poway’s main water storage reservoir, with a capacity to hold more than one billion gallons of water. A transducer measures the lake’s water level and remotely sends data to the city.
The 20-year battle between seawater desalters and Orange County environmentalists and community activists neared a turning point Thursday, the first in a series of final public hearings around a Huntington Beach desalination plant proposal before local regulators.
Hearings and public comments at the state regional water board started Thursday, are continuing today, and could continue to Aug. 7, if needed, with a vote on the required permits for the $1 billion water desalting project planned at the end of the hearings.
Proposed by the Poseidon Water company, the project has become one of the largest battles over Orange County’s coastline in decades.
The San Diego County Water Authority has an annual Aqueduct Operating Plan, and the SDCWA’s 2020-2021 plan was presented at the Thursday, July 23, CWA board meeting as a non-voting item. The 2020-2021 plan includes shutdowns due to planned maintenance, and Fallbrook Public Utility District and Rainbow Municipal Water District turnouts will be impacted by a November shutdown to Pipelines 1 and 2 and a March 2021 shutdown to Pipeline 5.
AECOM Technical Services Inc. was given the San Diego County Water Authority design and engineering support contract for the San Luis Rey Habitat Management Area Restoration and the Dulin Hill Erosion Repair projects.
A July 23 SDCWA board vote approved a professional services contract with AECOM for $465,069. The CWA issued a request for proposals for a single contract for the two adjacent sites; the Dulin Hill Erosion Repair consultant work will be for technical support while the San Luis Rey Habitat Management Area Restoration activities will include design, bidding and construction support services.
Legislation authorizing the Army Corps of Engineers to boost the nation’s water infrastructure, protect waterways from emerging contaminants, and bolster coastal shorelines sailed through the House Wednesday.
On a voice vote, the House used a procedure reserved for mostly non-controversial legislation to pass the bipartisan Water Resources Development Act of 2020 (H.R. 7575), which lays out a two-year road map for projects that the Corps’ civil works program must tackle.
During my nearly two years as chair of the Water Authority’s Board of Directors, I have seen firsthand the regional benefits of decisions made by our predecessors to secure water supply reliability. I cannot count the number of times I have been thankful for all the board members, regional stakeholders, staff and supporters in decades past who wrestled with challenges and made tough decisions to invest in big ideas and projects. From water supplies and water storage to pipelines and water treatment, these decisions have resulted in water supply security for our region.
While the prudent plans of the past benefit current and future generations, we must continually grapple with the uncertainties of the future given the decades-long lead time for major infrastructure projects. One of my mantras as Board chair has been to focus not just on today, but the next 25, 50, and even 75 years. We know that new infrastructure investments will be necessary, and they take time to plan and build. The challenge is how best to balance the costs, benefits, and uncertainties.
That’s why more than a year ago, our Board authorized a technical feasibility study to look at whether building our own conveyance system to transport our locally controlled regional water supplies from the Colorado River Quantification Settlement Agreement (Imperial Valley) could be cost-competitive with other options. The initial findings, released in June, confirm that is the case and offer a preview of what would be needed to build a conveyance system for meeting the region’s long-term water needs.
In coming months, the Board will decide whether to move the study to the next phase. This next phase will look in-depth on financing and costs – and more importantly mutually beneficial partnerships designed to reduce costs of improving regional water management. These partnerships might include joint ventures with Water Authority member agencies, the Imperial Irrigation District, Mexico, agriculture, the State of California through its Salton Sea Management Plan, tribal governments, renewable energy developers, public-private partnerships and more.
Currently, Water Authority staff is reviewing a second independent analysis of the June study, sponsored by some of the Water Authority’s member agencies. It is vitally important that we take the time to digest new information and different perspectives, and perhaps incorporate their suggestions in the next phase of our study, especially as we look toward a project of this size and magnitude that will be paid for over many generations.
Even after reviewing the voluminous data, I expect that there will be a variety of opinions about how to proceed. We all recognize that it is inherently difficult to forecast both costs and benefits over several decades for this project or any other, which is why we have taken measured steps. Should the study move to the next stage, the process will include many future off-ramps for the Board in case better alternatives emerge.
At every stage, our Board should be committed to a thoughtful, fulsome assessment, never shying away from the need to cooperatively, collectively and civilly engage on these important questions with real benefits – and perhaps consequences – for our children and grandchildren. This is fundamental to the civic process, and critical to charting our region’s course as we have been doing for more than 75 years at the Water Authority.
New fish-friendly seawater intake pumps recently commissioned at the Carlsbad Desalination Plant are among the most environmentally advanced intake pumps in the world.
The three intake pumps, manufactured by Indar, are part of a broader effort to ensure the long-term health of the marine environment near the Claude “Bud” Lewis Carlsbad Desalination Plant, which sits on the shores of Agua Hedionda Lagoon.
Installation of the new intake pumps is part of a phased program to replace the existing seawater intake and discharge facilities with state-of-the-art technology to protect marine life that wasn’t available when the plant was operating with source water from the Encina Power Station. The closure of the power station in December 2018 led to temporary intake-discharge operations until the new intake pumps came online. The next steps include adding new intake screens, designed to prevent any sea-life larger than 1 millimeter (thicker than a credit card) from entering the plant.
The work to complete the construction and commissioning of the new fish-friendly seawater intake pumps was part of the essential work allowed under California guidelines during the COVID-19 pandemic. The contractor, Kiewit–Shea Joint Venture, worked in accordance with guidelines adopted by the State Building and Construction Trades Council and approved by Governor Gavin Newsom for essential construction. The contractor worked uninterrupted to complete the project per the June 30, 2020, deadline set by the Regional Water Quality Control Board without any health or safety violations.
The eventual transition of the desal plant to operate independent of the power plant was anticipated in the 2012 Water Purchase Agreement between Poseidon Water, which manages and operates the facility, and the San Diego County Water Authority, which purchases the water for use across the region. Currently, the plant provides about 10% of the region’s water supply.
The new intake screens are the final part of upgrades, which when complete in 2023, will make the Carlsbad Desalination Plant the first desalination facility in California to comply with the 2015 California Ocean Plan Amendment, which is among the most advanced sea-life protection measures in the world. Photo: San Diego County Water Authority
The new intake screens are the final part of upgrades, which when complete in 2023, will make the Carlsbad Desalination Plant the first desalination facility in California to comply with the 2015 California Ocean Plan Amendment, which is among the most advanced sea-life protection measures in the world. Poseidon Water also plans to implement the same state-of-the-art intake system at its proposed Huntington Beach Seawater Desalination Plant in Orange County.
“We are excited to reach this milestone at the Carlsbad Desalination Plant that highlights our commitment to environmental stewardship,” said Jim Madaffer, chair of the Water Authority’s Board of Directors. “This plant will continue to be a vital regional resource for decades to come, and it demonstrates that environmental enhancements can go hand-in-hand with water supply sustainability.”
The Water Authority can purchase up to 56,000 acre-feet of water from the Carlsbad plant per year – enough to serve approximately 400,000 people annually. The new pumps, combined with additional future investments, will continue to provide the San Diego region with a critically important drought-proof water supply from the Pacific Ocean.
The plant is a major component of the Water Authority’s multi-decade strategy to increase the county’s water supply reliability through supply diversification. San Diego County’s water portfolio approach has been successful in minimizing the region’s vulnerability to drought and other water supply emergencies.
“Using the most advanced technology for the seawater intake system builds on the Carlsbad Desalination Plant’s long history of protecting and preserving the coastal environment,” said Poseidon CEO Carlos Riva. “The new intake system will make this one of the most environmentally sensitive desalination plants in the world, and further enhance our region’s water reliability and climate resiliency.”
For more information, go to the plant website, carlsbaddesal.com, or to the Water Authority’s website, sdcwa.org.
East San Diego County firefighters and first responders will be better prepared to respond to emergencies due to improved communication capacity through a new partnership with the Helix Water District. The Heartland Communication Facility Authority recently installed a new radio repeater on Helix Water’s Calavo tank, located near Mt. Helix.
East San Diego County firefighters and first responders will be better prepared to respond to emergencies due to improved communication capacity through a new partnership with the Helix Water District. The Heartland Communication Facility Authority recently installed a new radio repeater on Helix Water’s Calavo tank, located near Mt. Helix.
“When public agencies work together to improve the lives of our citizens, everyone benefits,” said Helix Board President Mark Gracyk. “We are delighted with the outcome and are very proud to participate in making East County a safer place to live.”
Heartland’s goal is to provide its customers with the highest quality of public safety communications services. Heartland provides public safety communication services to 13 fire agencies throughout East San Diego County. It uses a universal radio system – known as a VHF radio – to communicate with fire agencies and first responders.
Though reliable, the hilly terrain of East County can interfere with VHF radio communications. Diagram: Helix Water District
Though reliable, the hilly terrain of East County can interfere with VHF radio communications. As part of its effort to improve communication in El Cajon and Spring Valley, it needed a suitable location to install a radio repeater between the two communities. The Calavo storage tank was ideally positioned to play home to the new repeater. Heartland approached Helix to work out an agreement.
“Heartland Communications Facility Authority knows the needs of our local emergency communication infrastructure,” said Dan McMillian, Helix Water District board member. “When Heartland approached Helix, our board saw this as an opportunity for our two agencies to work together for the benefit of the communities that we serve.”
“The addition of a radio repeater on the Calavo Drive water tank will allow firefighters from throughout the state who respond to the East County to communicate with each other and the dispatch center using this repeater,” said Carlos Castillo, Director of Heartland Communications. “Communications are an integral part of the firefighting effort in suppressing wildland fires, and firefighter safety relies on an effective communication infrastructure.”
Improvements at the Calavo site included installing a new radio repeater and a four-foot antenna at the top of the tank. Photo: Helix Water District
Construction started in March 2020 and was completed in June 2020. Improvements at the Calavo site included installing a new radio repeater and a four-foot antenna at the top of the tank. As part of the project, San Diego Gas and Electric installed a new electric service and meter at the site so Heartland’s equipment can operate independently from Helix’s pumps and monitoring equipment.
“Heartland Communications would like to thank Helix Water District for allowing us to install our VHF repeater on their water tank,” said Castillo. “This collaboration between Helix and Heartland is a win-win for the fire service and the community. It will provide the critical communications infrastructure needed to enhance public safety.”
The Heartland Communication Facility Authority provides emergency communication services for its member agencies, which include Alpine Fire, Bonita Fire, San Miguel Fire, City of El Cajon, City of La Mesa, City of Lemon Grove, Lakeside Fire, City of Santee, Barona Fire and Viejas Fire.
The Helix Water District treats and delivers water to 277,000 people in La Mesa, El Cajon, Lemon Grove, and parts of Spring Valley, Lakeside, and unincorporated San Diego County.
Water is assumed to be among the most ‘resilient’ of sectors. Whatever the economic picture, we all need water. Sophisticated engineering design means technical threats can be engineered out. And the experience of Covid-19 so far appears to back up the assumption. The share prices of the big water firms have held up well; issues like increased demand have had only a minimal effect.
