California Water History


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

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

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

We call this perspective One Water. We can provide plenty of water for a robust and healthy California for generations to come.

This page has a wealth of info about California's One Water. Read, share and contribute, we want this to be a resource for all Californians!

Featured video: What is One Water?

Topic Sponsor

Sponsor's Featured Articles

  • asdasd
  • adsasd


Your input

One Water California Posts

Valentine’s Day Storm Slams California, Pushing Water Agencies to the Edge

March 20, 2019

“Atmospheric River” is a meteorological term coined in the 1990s that’s recently entered common public usage. They are bands of …

Strengthening Utilities through Consolidation: The Financial Impact

March 5, 2019

Today, the US Water Alliance and the UNC Environmental Finance Center are proud to release a new report, Strengthening Utilities …

Declining Flows: Managing the Consequences of Our Success

February 19, 2019

Join the discussion on declining flows at AC19. The session Deep Dive: The Impact of Declining Flows includes 4 case …

Expert Advice: Key Steps to Public Outreach

February 14, 2019

Public outreach programs can reap multiple benefits for utilities and other public agencies, including community support for projects and utility …

2019 EPA Effective Utility Management Workshop Presentations Available

February 13, 2019

  View this post on Instagram   Some of SoCal water’s best & brightest gathered today at the City of …

State Water Board Focuses on CECs in Updated Recycled Water Policy

December 11, 2018

State Water Board press release… Key Details Policy for Water Quality Control for Recycled Water was first drafted in 2009 …

Moulton Niguel Water District Celebrates 50 Years of Water Recycling

August 23, 2018

Moulton Niguel Water District is celebrating its 50th year of operating one of the state’s most successful water recycling programs, which …

Regional San to receive $280.5 million in Proposition 1 funds to expand water recycling in the Sacramento region

August 1, 2018

 The California Water Commission (Commission) recently announced that Regional San will receive $280.5 million—the maximum requested funding amount—in Proposition …

Video: LA Sanitation Explains Projects to Help Get to 50% Local Water by 2025

July 26, 2018

Cool new video from LA Sanitation featuring: City of Los Angeles 2025 local water goal – One Water Los Angeles …

CA-NV AWWA and CWEA Sign Agreement to Work Together on the Future of Operator Certification

June 7, 2018

The California-Nevada Section of the American Water Works Association (CA-NV AWWA) and California Water Environment Association (CWEA) have signed a …