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Carlsbad Desalination Plant-oil spill-Lagoon-boom protection

Desal Plant Operations Continue; Protective Boom Installed at Lagoon

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(Editor’s note: As of Friday, October 8, the Carlsbad Desalination Plant continues operating at full production with no indication of oil in the feed water. As a precautionary measure, protective booms have been placed at several locations in the Aqua Hedionda Lagoon, including in front of the desalination plant intake).

Poseidon Water and the San Diego County Water Authority issued the following joint statement in response to emergency response efforts following the recent oil spill off the coast of Orange County. No oil has been detected by the plant’s monitoring system.

“The San Diego County Water Authority and Poseidon Water appreciate precautionary efforts by state emergency response crews to install a protective boom at the mouth of Agua Hedionda Lagoon, which provides intake water for the Claude “Bud” Lewis Carlsbad Desalination Plant. State agencies are also installing a second barrier near the plant intake.

No oil detected

“The Carlsbad Desalination Plant continues to operate normally with no oil detected at the site, and there are no plans to shut it down. If operational changes are required, the Water Authority could shift water deliveries to ensure continued water service to its member agencies countywide. Per State of California requirements in the facility’s drinking water permit, the desalination plant will shut down if the hydrocarbon concentration of source seawater reaches 300 parts per billion.

“We continue to monitor the situation closely, including ongoing testing for oil in the intake waters of the desal plant. And we continue to closely coordinate with the City of Carlsbad, the County of San Diego, Orange County, state agencies and others involved in the emergency response to ensure the plant remains a vital, drought-proof water source for San Diego County.”

Drought-proof water supply

The Water Authority added desalinated seawater to its supply portfolio in 2015 with the start of commercial operations at the nation’s largest seawater desalination plant – the result of a public-private partnership in the coastal town of Carlsbad. The drought-proof supply reduces the region’s dependence on supplies that are vulnerable to droughts, natural disasters and regulatory restrictions.

Desalination uses reverse osmosis technology to separate water molecules from seawater. Water from the ocean is forced through thousands of tightly-wrapped, semipermeable membranes under very high pressure. The membranes allow the smaller water molecules to pass through, leaving salt and other impurities behind.

Landmark public-private partnership

In November 2012, the Water Authority approved a 30-year Water Purchase Agreement with Poseidon Water for the purchase of up to 56,000 acre-feet of desalinated seawater per year, approximately 10% of the San Diego region’s water demand.

Poseidon is a private, investor-owned company that develops water and wastewater infrastructure. Under the Water Purchase Agreement, Poseidon built the Claude “Bud” Lewis Carlsbad Desalination Plant, and a 10-mile conveyance pipeline to deliver desalinated seawater to the Water Authority’s aqueduct system.

For updates on the oil spill go to: https://socalspillresponse.com

Carlsbad Desalination Plant Maintains Safe Operations, Monitors Orange County Oil Spill

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CARLSBAD, Calif. (Oct. 6, 2021) – Poseidon Water and the San Diego County Water Authority issued the following joint statement in response to the recent oil spill off the coast of Orange County:

“The oil spill has not affected the operations of the Claude ‘Bud’ Lewis Carlsbad Desalination Plant. The facility is San Diego County’s largest single source of locally produced drinking water, generating nearly 80 billion gallons of drought-proof water since operations started in December 2015.

“Water quality in Carlsbad’s Agua Hedionda Lagoon – the desalination plant’s intake source – is continually monitored for more than a half-dozen seawater parameters, including oil-in-water concentration. Per State of California requirements in the facility’s drinking water permit, the desalination plant will shut down if the hydrocarbon concentration of source seawater reaches 300 parts per billion. While there has been no indication of oil from Orange County reaching Carlsbad, the facility’s operating team will continue to closely monitor intake water quality.

“In addition, Poseidon Water and the Water Authority are working with local, state, and federal agencies to assess potential preemptive actions in case conditions change, including installation of a floating boom at the mouth of the lagoon. That would protect the lagoon for marine life and ensure the desalination plant can stay online, which minimizes the San Diego region’s demands on other water resources.”

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In the new virtual reality video tour of the East County AWP, Kyle Swanson, East County AWP director helps lead participants on a guided tour of water facilities. Photo: East County AWP

Virtual Reality Video Tour for East County Water Project

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A new 360-degree virtual reality video tour takes viewers through the planned East County Advanced Water Purification facilities. Participants are immersed in a guided tour of water facilities, where they can control their view by moving their computer mouse or smartphones to any direction in the video they want to see.

Viewers with a virtual reality headset for smartphones can take engagement one step further by stepping into the video. Locations visited in the virtual reality video tour include the Ray Stoyer Water Recycling Facility and the East County AWP Demonstration Facility in Santee, and Lake Jennings in Lakeside.

“Bringing this fun, easy to understand, and immersive tour to East County’s water and wastewater customers is an important and unique educational resource,” said Kyle Swanson, East County AWP director. “Prior to the COVID-19 pandemic, we averaged more than 1,000 people annually touring our facility, many of whom were eager students wanting to learn about this important water resource. This virtual tour helps to refill the learning need and will also be helpful while the East County AWP progresses towards the construction phase.”

Residents can participate in a guided virtual reality tour with a presentation and the opportunity to ask questions at 10 a.m., Tuesday, October 26. Sign up to reserve your place on the program’s Tours webpage.

Program representatives will also schedule opportunities for community groups, schools, and scouts to view the video using virtual reality goggles.

Creating a new sustainable drinking water supply

The East County AWP is a collaborative partnership between the Padre Dam Municipal Water District, Helix Water District, County of San Diego, and City of El Cajon. It will use sophisticated technology to provide 30% of current drinking water demands for East County residents. Photo: East County AWP virtual reality video tour

The East County AWP is a collaborative partnership between the Padre Dam Municipal Water District, Helix Water District, the County of San Diego, and the City of El Cajon. It will use sophisticated technology to provide 30% of current drinking water demands for East County residents. Photo: East County AWP

The East County AWP is a collaborative partnership between the Padre Dam Municipal Water District, Helix Water District, the County of San Diego, and the City of El Cajon. It will create a new, local, and sustainable drinking water supply using sophisticated technology to provide 30% of current drinking water demands for East County residents when it is completed in 2025, as much as 11.5 million gallons per day.

Water purification process

The program will use four advanced water purification steps to produce water that is near distilled in quality. After the advanced water purification process, the purified water will be blended with water in Lake Jennings and treated again at the R.M. Levy Water Treatment Plant before being distributed into the drinking water supply. The project eliminates the need to send most of East County’s wastewater to the City of San Diego’s Point Loma Wastewater Treatment Plant, where it is treated and then discharged into the ocean.

The Padre Dam Municipal Water District currently imports 100% of its drinking water supply. It treats two million gallons per day at its water recycling facility for irrigation and non-potable uses.

(Editor’s note: The Padre Dam Municipal Water District, Helix Water District, and the City of El Cajon are three of the San Diego County Water Authority’s 24 member agencies that deliver water across the metropolitan San Diego region.)

Water Authority’s Ratepayer Protection Case Secures Additional $36 Million Recovery

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Sept. 30, 2021 – The San Diego County Water Authority’s Chair today announced a decision by the Metropolitan Water District of Southern California’s Board of Directors to pay damages and statutory interest for illegal water charges from 2015-2017, totaling about $36 million. The vote followed a California Court of Appeal decision upholding earlier rulings in favor of San Diego.

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Olivenhain Municipal Water District Logo landscape design workshops

OMWD to Host Free Native Plant Virtual Workshop on October 14

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Encinitas, Calif. — Olivenhain Municipal Water District invites the public to attend a free virtual workshop on landscaping with native plants on October 14, from 5:00 p.m. to 6:30 p.m. The workshop is designed for individuals who are interested in incorporating native plants in their gardens to increase water efficiency and support local ecology.

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Chair Croucher: Epic Drought Means Everyone Should Find Even More Ways to Make a Meaningful Impact

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Sept. 21, 2021 – San Diego County Water Authority Board Chair Gary Croucher today issued a statement in response to the State Water Resources Control Board announcement of water conservation figures for July.

“Over the past three decades, the water ratepayers in the San Diego region have done an extraordinary job of voluntarily reducing water use by nearly 50%. Those conservation efforts are enhanced by the Water Authority’s investments in a diversified water supply portfolio and regional facilities, including water transfers, seawater desalination, canal lining and reservoirs. That long-term track record of stewardship is a primary reason why we have reliable supplies during this record-breaking drought and for future years.

“While we should all be proud of our long-term track record of conservation, we need to do more to help eliminate water waste during this epic drought. The Water Authority offers numerous tools to enhance water sustainability, including free water-use check-ups for homes and businesses, along with rebates for WaterSmart upgrades. As a community, it’s important that we find ways to be even more water-efficient to ensure that we have reliable water supplies not just for today, but for future generations.”

— Gary Croucher, Board Chair, San Diego County Water Authority

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Vista Irrigation District Logo

Vista Irrigation District Honored for Governance and Transparency

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The Vista Irrigation District has received two major statewide honors, the District of Distinction Platinum Recognition award and the Transparency Certificate of Excellence.

The District of Distinction recognition awarded by the Special District Leadership Foundation to special districts that show their commitment to good governance, transparency, prudent fiscal policies and sound operating practices. The district originally obtained its accreditation in 2009 and just received its most recent reaccreditation.

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New Digital Water Education Workbook Makes a Splash

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Sept. 16, 2021 – The San Diego County Water Authority today released an interactive, digital workbook to help upper elementary students learn about the region’s most precious natural resource: water.

The online workbook is the latest addition to the Water Authority’s long-running education program that has helped instill water knowledge in hundreds of thousands of students in over more than two decades. It was funded by a grant from the Hans and Margaret Doe Charitable Trust and State of California, Proposition 84 Round 4 funds.

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San Vicente Energy Storage Facility project-renewable energy-grid-pumped hydro

Request for Proposals Issued to Develop San Vicente Energy Storage Facility

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San Diego County Water Authority this week issued a formal Request for Proposals seeking a full-service private partner capable of developing a large-scale pumped energy storage project planned jointly by the Water Authority and the City of San Diego. Proposals are due by 2 p.m. Nov. 3, and details such as how to file are included in the RFP document at www.sdcwa.org/contracting-opportunities.

Request for Proposals

The partner agencies aim to maximize the value of the existing San Vicente Reservoir for on-demand energy generation to support the state’s clean energy goals. The Water Authority and the City of San Diego are seeking a full-service, multidisciplinary team capable of delivering and operating the project.  The scope of work is divided into two phases: Phase 1 Preliminary Work and Phase 2 Implementation Work. The RFP details the scope of work required for development and deployment of the project, including a financial plan.

“This is an exciting project that meets multiple goals for the San Diego region, including protection from blackouts and supporting climate-friendly energy sources,” said Gary Bousquet, director of engineering for the Water Authority. “We are committed to finding a private partner who can help move this from concept to completion.”

State funds for San Vicente Energy Storage Facility

In July 2021, the San Vicente Energy Storage Facility received $18 million in the state budget, enough to advance it through initial design, environmental reviews, and the federal licensing process. The San Vicente project is one of the most promising pumped energy storage solutions in California and it would be a major asset to help avoid rolling blackouts through on-demand energy production while helping to meet state climate goals. It also could mitigate costs for water ratepayers across the San Diego region by generating additional revenue to help offset the cost of water purchases, storage, and treatment. The City and the Water Authority are developing the project together, just like they did to raise the height of the city-owned San Vicente Dam 117 feet in the 2010s.

“The San Vicente Energy Storage Facility is an important project for San Diego,” said Juan Guerreiro, executive assistant director of the City of San Diego’s Public Utilities Department. “It will improve our energy security, with a clean renewable power solution to help us efficiently manage the energy supply within our region.”

With state funding in place, the Water Authority and the City are preparing to launch federal and state environmental reviews and seek a project license from the Federal Energy Regulatory Commission. Those complex components are expected to take at least four years, with construction completion forecast for 2030. The critical infrastructure project will create more than 1,000 construction-related jobs in addition to its other benefits.

Renewable energy for Southern California

Upon completion, the San Vicente energy project would provide up to 500 megawatts of long-duration stored energy, which will assist in meeting peak electrical demand periods throughout Southern California and help meet the goals of Senate Bill 100, which requires 60% renewable energy by 2030 and 100% zero-carbon energy resources statewide by 2045. The project will provide enough energy for about 135,000 households when operating.

California’s continuing shift to renewables will require new kinds of investments, markets, and business practices. Electric grids need to be more flexible; new kinds of power supplies will help deliver energy flexibility when needed; and new pricing systems are needed to send clear signals to developers and financial markets that these projects need to move forward.

Pumped energy storage projects are a major piece of the solution. They are designed to store excess renewable energy from solar and wind during the day, and then discharge that energy when energy use increases in the evening and renewable energy is not available.

The San Vicente project would create a small upper reservoir above the existing San Vicente Reservoir in Lakeside, along with a tunnel system and an underground powerhouse to connect the two reservoirs. The powerhouse would contain four reversible pump turbines.

 

 

San Vicente Energy Storage Facility Project-Renewable Energy-Graphic

During off-peak periods – when power is inexpensive and renewable supplies from wind and solar facilities exceed demand – turbines would pump water to the upper reservoir where it would act as a battery of stored potential energy. During high energy use, the system would discharge water from the upper reservoir downhill through the turbines, producing energy. The exchange between the two reservoirs would not consume water.

San Vicente Reservoir is near major electricity transmission interconnection facilities, which would allow the project to play a central role in integrating solar and wind energy from across the Southwest for use in San Diego County. The San Vicente project is largely immune to the challenges faced by some conventional hydropower facilities because it is a closed-loop system that mainly holds imported water and is not reliant on runoff that can fluctuate significantly from year to year and hamper power production.

(Editor’s note: The City of San Diego is one of the San Diego County Water Authority’s 24 member agencies that deliver water across the metropolitan San Diego region.)

Request for Proposals Issued to Develop San Vicente Energy Storage Facility

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Sept. 14, 2021 – The San Diego County Water Authority this week issued a formal Request for Proposals seeking a full-service private partner capable of developing a large-scale pumped energy storage project planned jointly by the Water Authority and the City of San Diego. Proposals are due by 2 p.m. Nov. 3, and details such as how to file are included in the RFP document at www.sdcwa.org/contracting-opportunities.

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