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‘Impressive’ Atmospheric River, First of the Season, Takes Aim at California

A “rather impressive system” is setting the stage for what could be California’s first atmospheric river storm of the season, the National Weather Service said Sunday. An atmospheric river carries water vapor from the tropics and, when it makes landfall, can bring a vast amount of rain and snow; in Oct. 2021, for instance, San Francisco got 750% more rainfall than an average year after a powerful atmospheric river passed through the region.

Because the movements of atmospheric river storms are difficult to predict, meteorologists are still refining the forecast. As of Sunday morning, “confidence is high” that northern parts of the North Bay “will be impacted by the strong atmospheric river beginning Wednesday, but these impacts could shift slightly southward closer to the SF Bay,” the weather service said.

US EPA Report Cites Cybersecurity Flaws in Drinking Water Systems, Flags Disruption Risks and Lack of Incident Reporting

The U.S. Environmental Protection Agency (EPA) Office of Inspector General released a report on cybersecurity concerns in drinking water systems. As part of its continued oversight of the EPA’s role as a sector risk management agency, the office revealed that passive assessment of cybersecurity vulnerabilities was conducted on drinking water systems with populations served of 50,000 people or greater. The findings revealed exploitable cybersecurity weaknesses that could disrupt service, cause data loss, or lead to information theft.

Furthermore, while attempting to notify the EPA about the cybersecurity vulnerabilities, the OIG found that the EPA does not have its ‘cybersecurity incident reporting system’ that water and wastewater systems could use to notify the EPA of cybersecurity incidents.

A Century After Owens Valley Aqueduct Protest, Event Marks Tense Time in L.A. Water History

It’s a chapter of California history filled with subterfuge and conflict: More than a century ago, agents secretly working for Los Angeles posed as farmers and ranchers as they bought land and water rights across the Owens Valley. Their scheme laid the groundwork for the construction of the Los Angeles Aqueduct, which in 1913 began sending the valley’s water to the growing city 233 miles away.

Residents were so enraged in the 1920s that some carried out a series of attacks on the aqueduct, blasting it with dynamite.

Key Takeaways from the U.S. EPA’s Third Annual PFAS Roadmap

The U.S. Environmental Protection Agency (EPA) announced on November 14, 2024, that they have released their third annual progress report on per- and polyfluoroalkyl substances (PFAS).

“EPA’s PFAS Strategic Roadmap: Three Years of Progress” highlights the achievements the agency has made under its PFAS Strategic Roadmap and the Biden-Harris Administration’s whole-of-government strategy to protect communities from the impacts of the contaminants.

US EPA Report Cites Cybersecurity Flaws in Drinking Water Systems, Flags Disruption Risks and Lack of Incident Reporting

The U.S. Environmental Protection Agency (EPA) Office of Inspector General released a report on cybersecurity concerns in drinking water systems. As part of its continued oversight of the EPA’s role as a sector risk management agency, the office revealed that passive assessment of cybersecurity vulnerabilities was conducted on drinking water systems with populations served of 50,000 people or greater. The findings revealed exploitable cybersecurity weaknesses that could disrupt service, cause data loss, or lead to information theft.

Furthermore, while attempting to notify the EPA about the cybersecurity vulnerabilities, the OIG found that the EPA does not have its ‘cybersecurity incident reporting system’ that water and wastewater systems could use to notify the EPA of cybersecurity incidents.

Expansion of San Luis Reservoir Set to Boost California’s Water-Storing Capacity

The Biden administration and eight California water agencies have reached an agreement to share in the costs of raising a dam to expand San Luis Reservoir, a nearly $1-billion project intended to increase the state’s water-storage capacity and benefit a group of urban communities and agricultural areas.

The plan to raise B.F. Sisk Dam and enlarge the reservoir near Los Banos will enable it to hold more water during wet years, boosting the reserves of water suppliers in parts of the Bay Area and the San Joaquin Valley.

Reclamation and Partners Complete Negotiations for the B.F. Sisk Dam Raise and Reservoir Expansion Project in Merced County, Advancing Water Supply Reliability in California’s Central Valley

The joint project creates an additional 130,000 acre-feet of storage space in San Luis Reservoir, the nation’s largest off-stream reservoir, producing additional water supply for two million people, over one million acres of farmland and 135,000 acres of Pacific Flyway wetlands and critical wildlife habitat. Reclamation signed the Record of Decision for the project on Oct. 20, 2023, the first approval of a major water storage project in California since 2011.

Significant provisions of the agreement include cost sharing and space management for the federally-funded and authority-funded shares of the expanded reservoir. A $25 million investment to the project under the Bipartisan Infrastructure Law was announced in October 2022 and an additional $10 million in July 2023. An additional $60 million was authorized for project construction from the Water Infrastructure Improvements for the Nation Act, for a total of $95 million in federal contributions to date in construction costs.

Cadiz to Repurpose Steel from Terminated Keystone XL Pipeline for California Water Project

Cadiz Inc. announced plans to acquire 180 miles of steel pipe from the terminated Keystone XL Pipeline, repurposing the materials for a new water delivery pipeline.

This new infrastructure will connect the company’s groundwater bank in California’s Mojave Desert to major water networks across the Southwestern U.S., with construction expected to begin in 2025.

Record-Setting Dry Conditions Threaten More US Wildfires, Drinking Water Supplies

Record-setting dry conditions in some parts of the U.S. are raising fears of new wildfires and also could threaten drinking water supplies if substantial rain does not fall in the coming months.

Firefighters battled wildfires from California to New York on Wednesday, hampered by high winds and arid landscapes.

Los Angeles Set to Build Facility to Transform Wastewater into Clean Drinking Water

Los Angeles will soon begin building a $740-million project to transform wastewater into purified drinking water in the San Fernando Valley, expanding the city’s local water supply in an effort to prepare for worsening droughts compounded by climate change.

The city plans to break ground next month to start construction of new facilities at the Donald C. Tillman Water Reclamation Plant in Van Nuys. When completed, the facilities will purify treated wastewater and produce 20 million gallons of drinking water per day, enough to supply about 250,000 people.