Learn more about the Wondrous World of Water: the 2022 Annual Consumer Confidence Report is now available
Sign your class up for a visit from Zone 7 Water Academy
Picture of Flood Ready Freddy and his dog scout waiting for rain; Text: Flood Preparedness Open House, October 21, 10am to 2pm

Delivering the highest standard of water quality, reliability and safety.

As the Tri-Valley region’s water wholesaler, we work with our water retailers to ensure the people of eastern Alameda County are taken care of.

Home

How We Serve You

Water Quality

Our water meets not only state and federal health standards, it outperforms many of them – which inspired us to create the more stringent Zone 7 standards.

Water Reliability

We are continually working to secure our water supply – even in our ever-changing environment of water rights and availability.

Flood Protection

We are continuously improving our level of preparedness and resiliency in managing our watershed to protect the Tri Valley community from flooding.

Read the Agency’s 2020-2021 Annual Report

Zone 7 is committed to delivering safe, reliable, efficient, and sustainable water and flood protection services. This year, the Annual Report is fully online and meets and exceeds the Americans with Disability Act (ADA) compliance and regulation standard

Read the 2020 Urban Water Management Plan (UWMP)

Zone 7 uses the UWMP to help evaluate and plan for the Tri-Valley's water supply needs.

Water-Wise Wendy, a child smiling wearing a gardening hat, apron and gloves, sitting on bags of mulch in a garden

Be Water-Wise with Water Wise Wendy

Visit our Water Conservation section to get tips from our youngest water saving guru for both inside your home and outside in your yard.

Where does our water come from?

Learn more about the journey our water takes from the Sierra Nevada as snowmelt through hundreds of miles of infrastructure to make it to your tap.

The Wondrous World of Water

Dive into the Wondrous World of Water to learn how in the world ozone disinfects water! Our water quality video series takes a look at how Zone 7 provides clean, safe drinking water for the Tri Valley community.

Attend our next board meeting

Our board meets the third Wednesday of every month. Visit our Calendar of Events for agenda and details.

Events

Public Events 2155 Third St, Livermore, CA 94550

Rotary Chili Cook Off

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Public Events 29 S. LIVERMORE AVE, LIVERMORE CA 94550

Engineering Encounters at Stockmen’s Park

Quest Science Center

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Public Events H St & 5th St Livermore, CA 94550

Lawn to Garden Party

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View Full Calendar

News & Updates

Zone 7 awarded $16M in funding from Sustainable Groundwater Management grant program

Grant from State Department of Water Resources will offset cost of new Stoneridge facility

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Zone 7 upgrades Stoneridge Well with Ion Exchange PFAS Treatment Facility

First facility of its kind in Northern California will remove PFAS from groundwater supply

Read more

Zone 7 welcomes teachers back with new Water Academy Rewards program

Program incentivizes teachers to build a new generation of water champions

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All News & Updates

Meeting Agendas

Agendas

Regular Board Meeting

September 20, 2023

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Archived Board Documents

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EVERY DROP COUNTS

One of the best ways to cut down on water costs and maintenance is to replace your grass or turf with water-wise and native plants!

Northern California Drought Update

The Tri-Valley has received just 40% of our average amount of rainfall this season.

Did you know most of the Tri-Valley’s water comes from outside our region?

On average, 70% of our water supply is imported surface water through the South Bay Aqueduct.