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Topic: Central Coast

Overview November 11, 2018

Central Coast

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Aquafornia news June 2, 2025 San Luis Obispo Tribune (Calif.)

Calif. farmers, wineries face water use fees in Paso Basin

From farmers to winemakers, commercial irrigators pumping from the Paso Robles Area Groundwater Basin may soon need to pay for their water use. On Tuesday, the Paso Robles Area Groundwater Authority voted unanimously to send notices of the proposed rates to impacted property owners, giving them the opportunity to protest the fees. If a majority of recipients submit a written protest, the agency can’t implement the rates. The California Department of Water Resources considers the basin “critically overdrafted.” Users pumped about 25,500 acre-feet of water more than was returned to the underground reservoir in 2024, according to the most recent annual report on the basin. … The fees would fund administrative tasks like monitoring wells and writing annual reports along with programs designed to balance the basin. If passed, the rate structure will last for five years.

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Aquafornia news May 14, 2025 Bloomberg

Carlsbad, California, devises plan to move highway away from eroding coast

… Carlsbad, unlike many other seaside communities facing gut-wrenching decisions about how to handle coastal erosion, might just have the time, space and resources to get ahead of the problem. Plenty of advocates in the region hope the city can be a model for climate adaptation with its proposal to move the road inland. But its ambitions depend on its ability to find outside funding and build public support locally for the project. Right now, the city is on track to choose the path of “retreat now,” before an emergency situation, rather than “retreat later,” the default option for many communities — especially those facing harder decisions to move homes and businesses rather than just infrastructure.

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Aquafornia news May 12, 2025 KSBY (San Luis Obispo, Calif.)

Investigation continues into Five Cities water contamination

A week following a boil water notice in the Five Cities area, San Luis Obispo County is still investigating the cause of the contamination. While that order has been lifted for the communities of Arroyo Grande, Grover Beach, Oceano, Pismo Beach and Avila Beach, some residents are still taking precautions. … Nola Engelskirger from San Luis Obispo County Public Works says she understands people’s concerns, but now that the notice is lifted, there is nothing to worry about. “People should know their water is safe. It is meeting all drinking water standards. The boil water notice was lifted, and right now we are doing everything we can to take precautions to not have that happen again,” she said.

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Aquafornia news May 9, 2025 The Tribune (San Luis Obispo, Calif.)

How did SLO County Calif. find bacteria in drinking water?

A large swath of southern San Luis Obispo County was ordered to boil its drinking water last week after bacteria was discovered in Lopez Lake’s water distribution pipeline. Residents of Arroyo Grande, Grover Beach, Pismo Beach, Oceano, Avila Beach and other unincorporated areas of the South County had to to boil drinking water for up to four days depending on where they lived. … The county discovered the bacteria at five routine testing sites in the Lopez water distribution system on April 29. After a second round of tests, the county issued a boil water notice on April 30 — which lifted for some residents on May 2 and others on May 3. … On Thursday, the county shared additional details of what led to the unprecedented boil water notice for Five Cities residents. Here’s what happened.

Related article:

  • County of San Luis Obispo: News release: Boil water notice summary and next steps
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Aquafornia news May 7, 2025 The Tribune (San Luis Obispo, Calf.)

SLO County Calif. switches disinfectant after E. coli alert

The San Luis Obispo County Department of Public Works is temporarily changing how it disinfects water in the South County after residents were put under a boil water notice late last week. Around 50,000 residents in the Five Cities area were told on April 30 to boil their water before use after a sample from the Lopez Lake water system tested positive for E. coli, the county said. It was the first time such a sample had prompted a boil water notice for the distribution system, which feeds much of the South County region. … Now, Public Works is expected to temporarily change the disinfectant used in the Lopez Project distribution system from chloramine disinfection — which uses a blend of chlorine and ammonia — to free chlorine, according to a news release.

Related article:

  • County of San Luis Obispo: News release: Conversion of drinking water disinfectant to free chlorine for the Five Cities area
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Aquafornia news May 6, 2025 KSBY (San Luis Obispo, Calif.)

Los Osos water pipeline project awaiting approval from Army Corps of Engineers

The Los Osos water pipeline has been in the works for the past four years. If funded, it would connect Los Osos to the state water project, providing the town with a new source of water. The project has already been approved at the federal level, but for work to begin, the Army Corps of Engineers needs to approve the allocation of funds. A recent report from the Los Osos Community Services District’s general manager states the CSD has reached out to the Corps several times since December for an update on the project but has never received a response. 

Other pipeline news:

  • The Arizona Daily Sun (Flagstaff): Bureau of Reclamation takes preliminary steps in study of Flagstaff’s water pipeline plans​
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Aquafornia news May 5, 2025 The Tribune (San Luis Obispo, Calif.)

SLO County lifts boil water order for all Five Cities areas

San Luis Obispo County lifted the boil-water order for all remaining areas on Saturday afternoon, following a water-contamination alert that lasted four days. According to an alert from the county, the boil-water order was lifted shortly after noon, allowing residents in Pismo Beach and Avila Beach to resume normal water use, after the State Division of Drinking Water gave the all-clear. … The county said it was working with state officials to investigate the cause of a single positive E. coli test result that spurred the boil order. The investigation is expected to take 30 days. Director of Public Works John Diodati said the drinking water is safe and will be monitored and tested as the county investigates the cause.

Related articles:

  • The Tribune (San Luis Obispo, Calif.): SLO County lifts boil-water order for some Five Cities residents. Here’s where
  • County of San Luis Obispo: News release: Boil water notices lifted for all affected communities
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Aquafornia news May 2, 2025 The Tribune (San Luis Obispo, Calif.)

SLO County residents told to boil water due to bacteria. How dangerous is it?

Thousands of San Luis Obispo County residents were recently warned to boil or purify their drinking water after tests detected a strain of coliform bacteria in the water supply. The bacteria, which was found in the water distribution system of Zone 3 of the San Miguelito Water Co., is an early indication of a potential E. coli contamination. … This is the first time coliform bacteria contamination at the Lopez distribution system has triggered a boil water notice, the county Public Works Department said in a Thursday news release. Here’s what to know about the potentially dangerous water contaminant. 

Related articles:

  • The Tribune (San Luis Obispo, Calif.): Water contamination forces some South County businesses to close
  • Newsweek: Thousands in California told not to drink water for 5 days​
  • Read more
  • View Original Article
Aquafornia news April 29, 2025 The Tribune (San Luis Obispo, Calif.)

Could Lake Cachuma open to swimming in Santa Barbara County?

The long-standing rule against swimming in Lake Cachuma has come under renewed focus. Santa Barbara County is exploring how to change the rule that prevents visitors from swimming in the local reservoir while still maintaining its status as a water source for the region. … The rule against swimming in the lake goes back to its creation in 1953, when the U.S. Bureau of Reclamation created Lake Cachuma through the construction of the Bradbury Dam. Even though the county manages the park, the lake itself is still owned by the Bureau of Reclamation. Brian Soares, the operations and maintenance manager for Lake Cachuma, said the reason swimming has not been allowed at the lake is that the water is used to supply Santa Barbara County areas with drinking water.

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Western Water August 12, 2022 California Groundwater Map WESTERN WATER-Could Virtual Networks Solve Drinking Water Woes for California’s Isolated, Disadvantaged Communities? By Nick Cahill

Could Virtual Networks Solve Drinking Water Woes for California’s Isolated, Disadvantaged Communities?
WESTERN WATER SPOTLIGHT: UCLA pilot project uses high-tech gear in LA to remotely run clean-water systems for small communities in Central California's Salinas Valley

UCLA’s remote water treatment systems are providing safe tap water to three disadvantaged communities in the Salinas Valley. A pilot program in the Salinas Valley run remotely out of Los Angeles is offering a test case for how California could provide clean drinking water for isolated rural communities plagued by contaminated groundwater that lack the financial means or expertise to connect to a larger water system.

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Western Water January 16, 2020 Layperson's Guide to Groundwater Douglas E. Beeman

Water Resource Innovation, Hard-Earned Lessons and Colorado River Challenges — Western Water Year in Review
WESTERN WATER NOTEBOOK-Our 2019 articles spanned the gamut from groundwater sustainability and drought resiliency to collaboration and innovation

Smoke from the 2018 Camp Fire as viewed from Lake Oroville in Northern California. Innovative efforts to accelerate restoration of headwater forests and to improve a river for the benefit of both farmers and fish. Hard-earned lessons for water agencies from a string of devastating California wildfires. Efforts to drought-proof a chronically water-short region of California. And a broad debate surrounding how best to address persistent challenges facing the Colorado River. 

These were among the issues Western Water explored in 2019, and are still worth taking a look at in case you missed them.

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Western Water October 10, 2019 California Groundwater Map Gary Pitzer

Recharging Depleted Aquifers No Easy Task, But It’s Key To California’s Water Supply Future
WESTERN WATER NOTEBOOK: A UC Berkeley symposium explores approaches and challenges to managed aquifer recharge around the West

A water recharge basin in Southern California's Coachella Valley. To survive the next drought and meet the looming demands of the state’s groundwater sustainability law, California is going to have to put more water back in the ground. But as other Western states have found, recharging overpumped aquifers is no easy task.

Successfully recharging aquifers could bring multiple benefits for farms and wildlife and help restore the vital interconnection between groundwater and rivers or streams. As local areas around California draft their groundwater sustainability plans, though, landowners in the hardest hit regions of the state know they will have to reduce pumping to address the chronic overdraft in which millions of acre-feet more are withdrawn than are naturally recharged.

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Western Water September 26, 2019 California Water Map Gary Pitzer

Often Short of Water, California’s Southern Central Coast Builds Toward A Drought-Proof Supply
WESTERN WATER NOTEBOOK: Water agencies in Santa Barbara, San Luis Obispo counties look to seawater, recycled water to protect against water shortages

The spillway at Lake Cachuma in central Santa Barbara County. Drought in 2016 plunged its storage to about 8 percent of capacity.The southern part of California’s Central Coast from San Luis Obispo County to Ventura County, home to about 1.5 million people, is blessed with a pleasing Mediterranean climate and a picturesque terrain. Yet while its unique geography abounds in beauty, the area perpetually struggles with drought.

Indeed, while the rest of California breathed a sigh of relief with the return of wet weather after the severe drought of 2012–2016, places such as Santa Barbara still grappled with dry conditions.

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Announcement July 10, 2019

Explore a Scenic But Challenged California Landscape on Our Edge of Drought Tour
August 27-29 Tour Examines Santa Barbara Region Prone to Drought, Mudslides and Wildfire

Pyramid LakeNew to this year’s slate of water tours, our Edge of Drought Tour Aug. 27-29 will venture into the Santa Barbara area to learn about the challenges of limited local surface and groundwater supplies and the solutions being implemented to address them.

Despite Santa Barbara County’s decision to lift a drought emergency declaration after this winter’s storms replenished local reservoirs, the region’s hydrologic recovery often has lagged behind much of the rest of the state.

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Tour November 6, 2019 - 7:30am - November 7, 2019 - 6:30pm Nick Gray Central Coast Tour Highlights Dam Removal & River Restoration, Ocean Desal and Innovative Recycling Project Using Ag Runoff Explore Airborne Mapping of Seawater Intrusion on Central Coast Tour November 6-7 Central Coast Tour Explores Solutions to Water Resource Challenges That Offer Lessons for California

Central Coast Tour 2019
Field Trip - November 6-7

This 2-day, 1-night tour offered participants the opportunity to learn about water issues affecting California’s scenic Central Coast and efforts to solve some of the challenges of a region struggling to be sustainable with limited local supplies that have potential applications statewide.

  • Paul Sorensen Presentation
  • Keith Van Der Maaten Presentation
  • Andy Fisher Presentation
  • Jeff Cattaneo Presentation
  • Pure Water Monterey Presentation
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Western Water October 5, 2018 Douglas E. Beeman

What Would You Do About Water If You Were California’s Next Governor?
WESTERN WATER NOTEBOOK: Survey at Foundation’s Sept. 20 Water Summit elicits a long and wide-ranging potential to-do list

There’s going to be a new governor in California next year – and a host of challenges both old and new involving the state’s most vital natural resource, water.

So what should be the next governor’s water priorities?

That was one of the questions put to more than 150 participants during a wrap-up session at the end of the Water Education Foundation’s Sept. 20 Water Summit in Sacramento.

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Western Water May 4, 2018 Layperson's Guide to Groundwater Gary Pitzer

Novel Effort to Aid Groundwater on California’s Central Coast Could Help Other Depleted Basins
WESTERN WATER Q&A: Michael Kiparsky, director of UC Berkeley's Wheeler Water Institute, explains Pajaro Valley groundwater recharge pilot project

Michael KiparskySpurred by drought and a major policy shift, groundwater management has assumed an unprecedented mantle of importance in California. Local agencies in the hardest-hit areas of groundwater depletion are drawing plans to halt overdraft and bring stressed aquifers to the road of recovery.

Along the way, an army of experts has been enlisted to help characterize the extent of the problem and how the Sustainable Groundwater Management Act of 2014 is implemented in a manner that reflects its original intent.

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Aquapedia background December 29, 2016 Layperson's Guide to Flood Management

ARkStorm

Sacramento's K Street during the 1862 flood that inundated the Central Valley.ARkStorm stands for an atmospheric river (“AR”) that carries precipitation levels expected to occur once every 1,000 years (“k”). The concept was presented in a 2011 report by the U.S. Geological Survey (USGS) intended to elevate the visibility of the very real threats to human life, property and ecosystems posed by extreme storms on the West Coast.

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Western Water Excerpt August 16, 2016 Jenn Bowles

Outdated Dams: When Removal Becomes an Option
Summer 2016

Mired in drought, expectations are high that new storage funded by Prop. 1 will be constructed to help California weather the adverse conditions and keep water flowing to homes and farms.

At the same time, there are some dams in the state eyed for removal because they are obsolete – choked by accumulated sediment, seismically vulnerable and out of compliance with federal regulations that require environmental balance.

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Aquapedia background May 17, 2016 Layperson's Guide to Groundwater California Groundwater Map

Sustainable Groundwater Management Act (SGMA)

A man watches as a groundwater pump pours water onto a field in Northern California.A new era of groundwater management began in 2014 with the passage of the Sustainable Groundwater Management Act (SGMA), which aims for local and regional agencies to develop and implement sustainable groundwater management plans with the state as the backstop.

SGMA defines “sustainable groundwater management” as the “management and use of groundwater in a manner that can be maintained during the planning and implementation horizon without causing undesirable results.”

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Western Water Magazine March 4, 2016

Tapping the Ocean: What is the Role of Desalination?
Winter 2016

This issue looks at the role of ocean desalination in meeting California’s water needs today and in the future.

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Publication February 12, 2015

The 2014 Sustainable Groundwater Management Act
A Handbook to Understanding and Implementing the Law

This handbook provides crucial background information on the Sustainable Groundwater Management Act, signed into law in 2014 by Gov. Jerry Brown. The handbook also includes a section on options for new governance.

  • Read the Handbook
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  • Water Issues
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  • Water Supply and Management
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