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

Gates Reinvented Toilet: Off-Grid Toilet Shows Promise in Global Testing

February 17, 2020

Systems approaching viability in field tests of Duke-led Gates Foundation “Reinvent the Toilet” project By Ken Kingery DUKE Pratt School …

Criticality-Driven Asset Performance Management (sponsored)

February 16, 2020

Coverage of asset management stories are support by MentorAPM The Key to Transforming Utility Performance Water and wastewater utilities across …

NWRI Releases SOP Guidance Document for Bioassays

January 13, 2020

From Water Reuse California… WateReuse California and the National Water Research Institute released a guidance document for developing a standard …

Bureau of Reclamation Awards Water Reuse Research Grants

January 13, 2020

From WateReuse… Reclamation Awards $1.6 Million for Water Reuse Research The Bureau of Reclamation announced that it has awarded $1.6 …

Preview of WEF’s Young Professionals Summit, Feb 24-25, Anaheim

January 12, 2020

Water Amplified: The Communication Revolution This year’s Summit will focus on addressing the critical issue of communications in the water …

SF Bay Section Hosting Emerging Issues in Potable Reuse Workshop on Jan 22nd

January 11, 2020

These workshops have SOLD OUT Workshop organized by CWEA’s Engineering and Research Committee As California prepares for the next drought, …

New Water Documentary, Brave Blue World, Debuts in Los Angeles

December 19, 2019

Story by Brave Blue World Production Team Liam Neeson narrated Brave Blue World shown to international water community Uplifting stories …

Researchers Find Antibiotic-Resistant Genes in Aquifer Replenished by Recycled Water

November 24, 2019

From USC news service A team led by USC Viterbi’s Adam Smith has found that purified water returned to Southern …

LA County Flood Control Offers Grants for Regional Stormwater Projects

October 21, 2019

The Safe, Clean Water Program (SCW Program) is excited to announce the Fiscal Year 2020-21 and 2021-22 Regional call for …

One Water LA 2040 Plan: Trigger-Based Implementation Strategy for Future Integration

October 9, 2019

On July 18, 2019, Ms. Azya Jackson of City of Los Angeles – LA Sanitation & Environment presented the One …

OCWD Greenlights Final Phase of Groundwater Replenishment System

September 15, 2019

The Orange County Water District (OCWD; the District) Board of Directors voted to award the contract to construct the 30 …

Finding and Training the Operator of the Future

July 16, 2019

CWEA’s coverage of the water workforce is supported by WaterTalent Obstacles and paths to water operator careers By Katherine Saltzman …