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Drought, Water Supply and Climate Change in the San Diego Region

An update on San Diego’s water supply during the current drought, and how climate change affects regional weather, was the main focus of a recent event sponsored by several organizations.

The Citizens Water Academy, Leaders 20/20 and San Diego Green Drinks hosted a lunch and learn session August 17 that also provided details on how weather and climate impacts water supplies, and how prepared the San Diego region is for drought impacts.

Mayor, EPA Chief Celebrate First Phase of San Diego’s Drought-Resistant Water Recycling Project

Mayor Todd Gloria, along with state and federal leaders, formally kicked off construction of Phase 1 of the city’s Pure Water program August 20. The project is intended to provide nearly 50% of the city’s drinking water by 2035 and reduce the need for imported water.

Helping the mayor celebrate the historic occasion in University City were Rep. Scott Peters, California Senate President Pro Tempore Toni G. Atkins, Environmental Protection Agency Administrator Michael S. Regan and California State Water Resources Control Board Chair E. Joaquin Esquivel.

Pure Water San Diego-EPA loan-August 2021-water recycling-Phase 1-potable reuse

Mayor, EPA Chief Celebrate First Phase of San Diego’s Drought-Resistant Water Recycling Project

Mayor Todd Gloria, along with state and federal leaders, formally kicked off construction of Phase 1 of the city’s Pure Water program August 20. The project is intended to provide nearly 50% of the city’s drinking water by 2035 and reduce the need for imported water.

Helping the mayor celebrate the historic occasion in University City were Rep. Scott Peters, California Senate President Pro Tempore Toni G. Atkins, Environmental Protection Agency Administrator Michael S. Regan and California State Water Resources Control Board Chair E. Joaquin Esquivel.

Water recycling project

“Today, we celebrated the launch of the largest, most ambitious infrastructure project in San Diego’s history,” said Gloria. “The Pure Water program will guarantee us a local water resource that allows San Diego to be drought-resilient and environmentally sustainable. This is a key part of how we will provide clean drinking water to our residents for generations to come.”

Two Water Infrastructure Finance and Innovation Act loans from the EPA are providing funding for up to $733.5 million toward the program’s Phase I projects. Additional funding for the construction of the project will come from Clean Water and Drinking Water State Revolving Fund loans in the amount of $665.1 million, and more than $80 million in federal and state grants, which do not need to be repaid.

The city will also receive a $340 credit from the Metropolitan Water District of Southern California for every acre-foot — enough water to supply up to four households for a year — produced for 25 years. This corresponds to a credit of $285.6 million over the life of the agreement, project leaders said.

Read the complete story from Times of San Diego here: https://bit.ly/3zgns1q

Pure Water San Diego is one of three potable water reuse or recycling projects under development in the San Diego region. The City of Oceanside is working toward creating 50% of its water supply locally, including Pure Water Oceanside, by 2030.

The East County Advanced Water Purification project would recycle 15 million gallons of annual wastewater discharge into drinking water, meeting 30% of the demand for potable water in East San Diego County.

(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.)

California Drought Could Lead to Mandatory Water Restrictions Reinstated Statewide

Even on an overcast, dewy day at the beach, drought conditions are of concern.

In July, Governor Gavin Newsom urged everyone across the state to cut their water use by 15%, but some water experts say that may not be enough.

“For us in San Diego County, we live in an arid region and we should be really behaving like we live in a drought 365 days of the year,” said Ian Monahan said, director of marketing and philanthropy for I Lova A Clean San Diego, an environmental non-profit focused on zero waste.

San Diego Prepping Long-Term Water Solutions as State Requests Cuts

As California Governor Gavin Newsom asks residents of the state to cut water usage by 15%, the San Diego County Water Authority is supporting that request while simultaneously working on long-term solutions to combat water shortages.

Goldy Herbon, Senior Water Resources Specialist for the Water Resources Department at San Diego County Water Authority, said there is no imminent concern over water shortages in San Diego County, however, it is important for locals to cut back now to set the area up for success in the future.

Opinion: Voters Played Role in Marin Municipal Water District Shortage

The welcome arch across Modesto’s main street proclaims, “Water, wealth, contentment, health.”

In essence, water, the first word, directly leads to the following benefits. The same formula applies to Marin. Now it’s the scarcity of water that endangers our county’s ability to enjoy the benefits of wealth, contentment and health.

The entire American West is enduring a drought of epic proportions. The globe’s climate will only get warmer in the next 50 years. Marin is late preparing for that eventuality. Doing so isn’t impossible but it comes with a hefty price tag and can’t happen overnight.

Semi-arid San Diego County has already accomplished what Marin needs to do. They have a sufficient water supply that will last until 2045. Marin may run dry next year.

San Diego’s Water Desalination Efforts Could Get Boost in Federal Funding

Desalination projects in the San Diego area could get millions in federal funding under a bill Rep. Mike Levin introduced Tuesday.

The Desalination Development Act would provide $260 million over five years for desalination projects across the country, including the City of Oceanside’s Mission Basin Groundwater Purification Facility, which converts brackish flows into potable water, said Levin, D-San Juan Capistrano.

It also sets environmental standards for projects that get federal funding, with requirements for energy efficiency, wildlife protection and water conservation.

Water Conservation Helps San Diego Regional Supply During Drought

Water conservation is a way of life in the San Diego region, whether during drought periods or wet years. While the region is in drought like much of the Southwest U.S., San Diego County is not experiencing a water shortage. That’s because the Helix Water District, and the other water utilities serving the region, have worked together for 25 years to conserve water and invest in new water resources.

Pure Water Oceanside-Drought-Water Shortage-Water Supply-Drought

Water Conservation Helps San Diego Regional Supply During Drought

Water conservation is a way of life in the San Diego region, whether during drought periods or wet years. While the region is in drought like much of the Southwest U.S., San Diego County is not experiencing a water shortage. That’s because the Helix Water District, and the other water utilities serving the region, have worked together for 25 years to conserve water and invest in new water resources.

The San Diego County Water Authority, its 24 member agencies, and the water ratepayers of San Diego County, have made investments to increase water supply reliability.

June 2021 was the hottest June on record in the U.S.

High temperatures make drought conditions worse. The hotter it is, the faster water evaporates from soil and transpires from plants. This is why urban landscapes, crops and forests dry out and the risk of wildfires increases. The map below shows all of the wildfires currently burning throughout the West.

Map from InciWeb

InciWeb map shows current fires burning across the U.S. West.

On July 8, Governor Newsom declared a drought emergency everywhere except Southern California

The Governor called for all Californians to voluntarily reduce their water use by 15%, but only declared a drought emergency in the counties in red in the map below. That’s because communities in central and northern California are more likely to rely on a single river, creek or well for their water and are more vulnerable to drought. It’s drier in Southern California and water agencies have been developing multiple water resources to meet water supply needs for more than 100 years. Today, this approach helps protect the region against drought and water shortage.

Map from Cal Matters

On July 8, 2021, Governor Newsom extended his drought emergency declaration to include all 50 counties in central and northern California.

In the San Diego region, water utilities work together to develop water supply

Helix and other water utilities in San Diego depend on the San Diego County Water Authority to import water from the Colorado River and Northern California.  When residents and businesses pay their water bills, their water utility pays the Water Authority for the imported water they use. Then, all the water utilities meet at the Water Authority and decide how to invest that money in water resources. By pooling our money over the last 25 years, we invested $3 billion and developed projects no single utility could afford on its own.

San Diego County Water Authority board meeting photo from Water News Network

Board members from member agencies work together as the board of the San Diego County Water Authority.

San Diego residents use half the water they used in the 1990s

Residents and businesses in the region have reduced their water bills by installing water efficient plumbing fixtures, appliances, landscapes and irrigation, and have taken advantage of rebates to save money. Today, San Diego County residents use half the water they used in the 1990s. As a result, water utilities have been able to reduce the size and cost of new water projects. Conservation eases demand when there is a water shortage due to drought or emergencies.

Water efficient landscaping at The Water Conservation Garden

Water efficient landscaping at The Water Conservation Garden.

Water supply from the Colorado River

In 2003, the Imperial Irrigation District agreed to sell up to 200,000 acre feet of water annually to the San Diego County Water Authority. Water used to irrigate crops was now available to San Diego homes and businesses, and just one acre foot of water can sustain up to four homes for a year. And, the Imperial Irrigation District has the most senior water rights on the Colorado River. If the Colorado River Basin states renegotiate how the river’s water is divided up, those senior water rights will help protect San Diego.

Colorado River photo from KUER Public Radio

Muddy Colorado River flowing through Utah.

Drought-proof water resources

In 2014, the Water Authority completed the Claude “Bud” Lewis Carlsbad Desalination Plant to turn Pacific Ocean water into drinking water. It’s the largest desalination plant in the western hemisphere. Now, we’re focused on turning recycled water into drinking water by using reverse osmosis, just like at the Carlsbad plant, and other advanced water treatment technology.

New water supply projects underway

Helix is working with Padre Dam Municipal Water District, the city of El Cajon and the county of San Diego on the East County Advanced Water Purification Program, and the cities of San Diego and Oceanside are developing “Pure Water” programs.

Reverse osmosis cannisters at the Carlsbad Desalination Plant. Photo from Poseidon Water

Reverse osmosis canister arrays at the Carlsbad Desalination

More space to store water

The more water we can store during a wet year, when a lot of rain and snow falls on California and the Colorado River Basin, the more water we have available in a dry year. Diamond Valley Lake, which Metropolitan Water District of Southern California filled in 2002, stores enough water for Southern California for six months. With the construction of Olivenhain Dam and the raising of San Vicente Dam, we have an additional six month water supply just for the San Diego region.

San Vicente Dam photo from the San Diego County Water Authority

San Vicente Dam.

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

Gov. Newsom asks Californians to Voluntarily Cut Water Use Amid Deepening Drought Conditions

California Gov. Gavin Newsom asked people and businesses Thursday to voluntarily cut how much water they use by 15% amid a drought. Newsom’s request is not an order. But it demonstrates the growing challenges of a drought that will only worsen throughout the summer and fall and is tied to recent heat waves.

Sandra L. Kerl, general manager of the San Diego County Water Authority, issued the following statement following the governor’s announcement:

“While the San Diego region is thankfully drought-safe this summer due to sound planning and decades-long ratepayer investments in new water supplies and storage and adoption of water conservation as a way of life, we must also be part of the statewide movement now underway to address water supply challenges created by drought and climate change in other parts of California.

“The Water Authority strongly supports the governor’s call for the public to voluntarily cutback water use by 15% in order to allow local, regional and state water agencies to plan and take the steps necessary under these changed conditions to maximize the availability of limited water supplies going forward, through the investment of state funding and implementation of other provisions of the Governor’s Proclamation of a State Emergency and Executive Order N-10-21 calling for water conservation. 

The Water Authority will be working closely with our member agencies and with the Metropolitan Water District of Southern California over the next several days, weeks and months, to design and implement strategies to maximize water supply development in collaboration with Governor Newsom and state agencies, in order to protect California.”