California’s 2024 Drinking Water Needs Assessment Reveals Critical Issues in Public Water Systems

The assessment identifies 385 failing public water systems and highlights significant funding gaps and affordability challenges in ensuring safe drinking water for disadvantaged communities.

2 minute read

July 9, 2024, 10:00 AM PDT

By Clement Lau


California Aqueduct channel in flat farmland area.

The California Aqueduct provides drinking water to large segments of the state. | Aaron Kohr / Adobe Stock

The California State Water Resources Control Board's 2024 Drinking Water Needs Assessment reveals that 385 public water systems in the state are failing, impacting nearly 913,500 residents. The report, mandated by Senate Bill 200 and supported by the Safe and Affordable Funding for Equity and Resilience Drinking Water (SAFER) program, aims to address these issues through collective efforts from various stakeholders. Since the SAFER program's inception in 2019, over $831 million in grants have been distributed, bringing 251 water systems back into compliance and completing 142 consolidations to benefit approximately 100,000 people.

Despite these efforts, significant challenges remain, with 613 public water systems at risk and high-risk domestic wells and small water systems still present. The assessment highlights a projected five-year funding gap of $5.5 billion to meet the needs of failing and at-risk systems, with a total estimated requirement of $13.9 billion for achieving the human right to water. It also underscores affordability challenges, particularly in disadvantaged communities, where small water systems charge significantly more than larger systems.

The findings from the assessment are utilized by the State Water Board’s SAFER program to prioritize funding allocation, aiming to ensure safe and affordable drinking water for all Californians. The report stresses the need for continued investment and collaboration among government agencies, non-profits, and local communities to overcome these challenges and secure safe drinking water for vulnerable populations.

Friday, June 28, 2024 in WaterWorld

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Use Code 25for25 at checkout for 25% off an annual plan!

Interior of Place Versailles mall in Montreal, Canada.

Montreal Mall to Become 6,000 Housing Units

Place Versailles will be transformed into a mixed-use complex over the next 25 years.

May 22, 2025 - CBC

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 28, 2025 - Diana Ionescu

AI-generated image of high-speed rail trail in elevated track in green hilly farmland.

Four Reasons Urban Planners Can’t Ignore AI

It’s no longer a question of whether AI will shape planning, but how. That how is up to us.

May 28, 2025 - Tom Sanchez

Aerial view of Bend, Oregon.

Bend, Deschutes County Move to Restrict Major Homeless Encampment

City and county officials are closing off portions of an area known as Juniper Ridge where many unhoused residents find shelter, hoping to direct people to housing and supportive services.

May 30 - The Bulletin

Metro rail station in Mariachi Plaza with colorful glass pavilion in Boyle Heights, Los Angeles, California.

High Housing Costs Driving Down Transit Ridership in LA

When neighborhoods gentrify and displace lower-income residents, transit ridership suffers, new research shows.

May 30 - CALmatters

Des Moines, Iowa skyline viewed from a plaza with two flags on either side at dusk.

Iowa Legalizes Accessory Dwelling Units

A new law will allow property owners to build ADUs on single-family lots starting on July 1.

May 30 - Smart Cities Dive

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.