Welcome SAWPA - Santa Ana Watershed Project Authority

SAWPA is a Joint Powers Authority delivering regional water solutions supporting its member agencies and restoring the environment of the Santa Ana River

Santa Ana Watershed Project Authority SAWPA Supporting The Santa Ana River Watershed Since 1975 The Santa Ana River Watershed Since 1975

Inland Empire
Brine Line

The Brine Line, a unique facility available in only a few regions of the state, provides an economical way for industry to dispose of salty wastewater produced through manufacturing and water treatment processes.

OWOW
One Water
One Watershed

OWOW, a strategic water management process, addresses regional water challenges in a comprehensive and collaborative way.

Roundtables
Task Forces

SAWPA excels at regional planning, ensuring a range of voices in creating and implementing efforts to protect the river watershed, respect the environment and provide cleaner water supplies.

Climate Adaptation and Resilience Plan

SAWPA’s work in the Santa Ana River Watershed advances projects and programs that build water resiliency and promote collaborative, innovative responses to water planning, all of which help address drought conditions.

SAWPA Member Agencies

SAWPA is a Joint Powers Authority that delivers regional water solutions supporting its member agencies. The authority plans and builds multi-benefit projects increasing water supply, protecting water quality, providing recreation opportunities and restoring the environment of the Santa Ana River Watershed.

Eastern Municipal Water District

emwd.org

Inland Empire Utilities Agency

ieua.org

Orange County Water District

ocwd.com

San Bernardino Valley Municipal Water District

sbvmwd.com

Western Municipal Water District

wmwd.com

RFPs / RFQs / Bids

Go to RFPs / RFQs / Bids

Public Notifications

Santa Ana River Watershed Cloud Seeding Program Concludes

July 10, 2025

Notice of Intention for the Santa Ana River Watershed Weather Modification (Cloud Seeding) Pilot Program

September 14, 2023
Go to Public Notifications

Employment Opportunities

None currently open
Go to Employment Opportunities

Cloud Seeding Pilot Program Postponed until November 15, 2025.

Due to burn scars from the wildfires in the summer of 2024 in the region, the Pilot Program has been postponed to avoid contributing to potential debris flows in the burn scar areas during storm events.

Learn more

Latest News

Go to Newsroom
Skip to content