One Water California


California's water professionals are responding to the State's droughts, declining water supplies and erratic weather with a new philosophy called One Water.

Drinking water, wastewater and stormwater traditionally are managed separately. Today, we view them all as one water. Across the State communities are planning to integrate infrastructure across the water cycle. We're breaking down barriers between municipal departments and asking regulators for flexibility so we can build multi-benefit water projects.

CWEA members believe all water has value and should be managed in a sustainable, inclusive and integrated way.

We call this perspective One Water. By implementing the one water philosophy we can provide enough water for a growing California for generations to come.

This page has a wealth of info on One Water in California. Read, share and contribute.

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"We shouldn't judge water by its history, but by its quality." — Paul Sciuto, General Manager, Monterey One Water

"One Water LA is bringing all of us together to think about water holistically. It connects dots, drops and hearts." - Adel Hagekhalil, Asst Director, City of Los Angeles

"I believe the future will see further acceptance of one-water with less delineation between water and wastewater professions." - Juan Guerreiro, Deputy Director, City of San Diego

One Water California Resources

Even If You’re Not an Environmentalist, Potable Reuse is Best Choice for Safe, Affordable Drinking Water

November 18, 2017

An Interview with Garry Brown,  DPR Advisory Group Chair The State’s recent steps toward direct potable reuse (DPR) might seem …

Comment Letter – Draft Report to the Legislature on the Feasibility of Developing Uniform Water Recycling Criteria for Direct Potable Reuse

October 20, 2017

Below is the joint comment letter CWEA and CA NV AWWA have submitted focused on the operator certification piece of the …

Announcing the Water Equity Clearinghouse

September 29, 2017

From US Water Alliance We are pleased to announce the release of the Water Equity Clearinghouse, an online database that showcases …

WE&RF Unveils Report on Pre-Treatment Standards for IPR/DPR

August 5, 2017

WE&RF released a new research report on pretreatment standards for agencies interested in adding or expanding their water reuse facilities. …

One Water Roadmap in Action on California’s Central Coast

July 21, 2017

Earlier this month, I had the privilege of facilitating a panel at CWEA’s Annual Conference. The panel–“Water Resiliency Leadership: One Water …

Water Resiliency Leadership: One Water Solutions – Workshop Recap

July 17, 2017

By Elaine Connors, Contributing Writer and Holly Tichenor, Water Systems Consulting, Inc. Imagine being the main representative of your communities’ …

Monterey WPCA Changes Name to Monterey One Water

July 17, 2017

  From Monterey One Water…. Monterey Regional Water Pollution Control Agency is proposing and recommending to its members that the …

A Good Neighbor: The San Francisco Public Utilities Commission’s Community Benefits Program

July 13, 2017

The SFPUC became the first public utility in the nation to adopt an Environmental Justice Policy and Community Benefits Policy …

California Prepares for Direct Potable Reuse of Wastewater

May 2, 2017

A state bill aims to create standards for direct potable reuse by the end of 2021 California’s multiyear drought was …

Trussell Technologies Explains the 4Rs in Potable Reuse

March 16, 2017

Reliability | Redundancy | Robustness | Resilience Trussell Technologies, a family run environmental engineering firm focused on process and water quality was recently cited …

AC17 Topics: What is the One Water Philosophy?

February 22, 2017

Radhika Fox, CEO of the US Water Alliance and based in San Francisco, will be the facilitator for our AC17 …

Bottoms Up! Purified Recycled Water is Safe to Drink – Santa Clara Valley News

December 5, 2016

Source: Santa Clara Valley News: “Bottoms Up! Purified Recycled Water is Safe to Drink” After 15 months of intensive water …