Posts

Water Shortage Contingency Plan-Drought-WSCP-Water Authority

Water Authority Activates Water Shortage Contingency Plan

/in , /by

The San Diego County Water Authority today activated Level 1 – Voluntary Conservation of its Water Shortage Contingency Plan in support of Gov. Gavin Newsom’s efforts to sustain California after two record-dry years. The agency’s 36-member Board of Directors voted unanimously to activate the regional drought response plan for the third time this century.

The San Diego region continues to have reliable water supplies due to decades of conservation efforts and ratepayer investments. However, Water Authority Board Chair Gary Croucher said San Diegans should increase their conservation efforts in the face of a potential third dry year across California.

“San Diegans have always stepped up when duty calls,” Croucher said. “Today, our 36-member Board sends a unified message encouraging residents to conserve water, avoid water waste, and take advantage of rebates to improve water-use efficiency indoors and outdoors.”

Drought emergency declaration

On Oct. 19, Gov. Newsom extended his drought emergency declaration to cover the entire state and asked the State Water Board to ban wasteful water practices such as using potable water for washing driveways and sidewalks. In addition, the governor directed water suppliers to implement Water Shortage Contingency Plans, which are responsive to local supply-demand conditions.

Water Shortage Contingency Plan

The Water Authority’s Water Shortage Contingency Plan, or WSCP, is designed for situations in which the agency’s supplies have been reduced. Previous versions of the plan have been activated twice before – once in 2007 and again in 2014. While the region isn’t currently facing supply reductions, Croucher said the Board’s action to go to Level 1 sends a signal that increased voluntary conservation efforts are necessary, and it gives local retail water agencies flexibility to address local conditions. While the Water Authority’s WSCP Level 1 calls for 10% voluntary water savings, the agency is supporting the governor’s call for a 15% reduction.

WSCP Level 1 – WaterSmartSD

At Level 1, the Water Authority will continue and enhance regional outreach and education to promote conservation. The agency offers numerous tools to make the most of every drop at www.watersmartsd.org. Resources include:

  • Water-use efficient landscape classes for residential and professional landscapers
  • Rebates for indoor and outdoor water saving devices
  • Rebates for turf replacement
  • Water-use checkups for homes and businesses that include water-saving recommendations
Water Shortage Contingency Plan-WSCP-drought-Desalination

The Claude “Bud” Lewis Carlsbad Desalination Plant is the largest, most technologically-advanced and energy-efficient desalination plant in the nation. Photo: San Diego County Water Authority

Water supply reliability

The Water Authority is also developing a program to increase installation of low-flow toilets in low-income communities, and it’s looking for opportunities to help the parts of the state that are suffering from extreme water shortages. The Water Authority has groundwater stored in the Central Valley that could be exchanged or sold, and the Water Authority is seeking partners who could benefit from increasing water production at the Claude “Bud” Lewis Carlsbad Desalination Plant.

The Water Authority’s supply reliability is due to multiple factors, including the nation’s largest ag-to-urban conservation project which helps sustain the region’s $253 billion economy and the quality of life for 3.3 million people. In addition, the Water Authority developed the nation’s largest seawater desalination plant in Carlsbad, which provides 10% of the region’s water supply. Long-term conservation upgrades have also played a critical tole: the region’s per capita water use is down nearly 50% since 1990. San Diego County’s diversified water resources reduce pressure on the State Water Project and make more water available to other areas of the state hit hardest by drought.

Marin Desalination Prospects Fade in Favor of Imports

/in , /by /Marin Independent Journalby Will Houston

The Marin Municipal Water District is moving away from plans to acquire temporary desalination plants and instead is exploring purchasing more water from Sonoma County during the winter months.

“We are determining that this is really not a feasible approach for the current drought where winter water does seem promising,” Paul Sellier, the district operations director, told the board on Oct. 19.

Full Story

People Should Drink Way More Recycled Wastewater

/in , , /by /Wiredby Matt Simon

ON A DUSTY hilltop in San Diego, the drinking water of the future courses through a wildly complicated and very loud jumble of tanks, pipes, and cylinders. Here at the North City Water Reclamation Plant, very not-drinkable wastewater is turned into a liquid so pure it would actually wreak havoc on your body if you imbibed it without further treatment.

First the system hits the wastewater with ozone, which destroys bacteria and viruses. Then it pumps the water through filters packed with coal granules that trap organic solids. Next, the water passes through fine membranes that snag any remaining solids and microbes. “The pores are so small, you can’t see them except with a really powerful microscope,” says Amy Dorman, deputy director of Pure Water San Diego, the city’s initiative to reduce its reliance on water imported from afar. “Basically, they only allow the water molecules to get through.”

Full Story

Desal Plant Operations Continue as State Starts to Install Barriers at Lagoon

/in , /by

CARLSBAD, Calif. (Oct. 7, 2021) – 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.

“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.”

Download File
Carlsbad Desalination Plant-oil spill-Lagoon-boom protection

Desal Plant Operations Continue; Protective Boom Installed at Lagoon

/in , /by

(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 Ready with Floating Boom if Oil Slick Moves South

/in , , /by /Times of San Diegoby Chris Jennewein Quoted: San Diego County Water Authority

Poseidon Water and the San Diego County Water Authority said Wednesday they are monitoring the oil spill off Huntington Beach and are prepared to protect the Carlsbad desalination plant.

The two organizations said in a statement that oil from Saturday’s underwater pipeline leak has not affected operations at the Claude “Bud” Lewis Carlsbad Desalination Plant, which supplies nearly 10% of the county’s drinking water.

Full Story

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

/in , /by

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.”

Download File

Lawsuit Seeks to Block Poseidon Desalination Plant in Huntington Beach

/in , , /by /Orange County Registerby Martin Wisckol
Two environmental groups have sued the Regional Water Quality Control Board over its decision to grant a permit for Poseidon Water’s desalination plant proposed for Huntington Beach, saying the board’s environmental review of the project was inadequate.
Poseidon has been working on the controversial, $1.4 billion project for 22 years. The regional board’s approval on April 29 leaves the company needing one more permit, from the state Coastal Commission, before it can negotiate a final contract with the Orange County Water District and begin construction.
Full Story

Marin Water Exploring Desalination to Tackle Severe Drought

/in , , /by /KRON 4 San Franciscoby Noelle Bellow

Reservoirs continue to dry up in Marin County and everyone agrees that conservation efforts are ‘not’ where they need to be. Now, the Marin Municipal Water District is looking at some expensive options to tackle the severe drought. “We’re facing historic drought conditions,” Emma Detwiler said.

Full Story

Cost Analysis for Desalination Presented to SCWD Board

/in , , /by /San Clemente Timesby Lillian Boyd

Ocean desalination has been named as one of the South Coast Water District’s top priorities—even more so as California undergoes an unprecedented water shortage.

In 2008, a Pilot Ocean Desalination Project was first initiated at Doheny State Beach, and the facility operated successfully for 21 months between 2010 and 2012. Subsequent to this effort, the District has proceeded with planning for an Ocean Desalination Facility.

Full Story