Zone 7 Water Agency - the Tri-Valley region’s water wholesaler

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.

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 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 Nevadas as snowmelt through hundreds of miles of infrastructure to make it to your tap.

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 to get the latest link to attend virtually.

Get Flood Ready with Flood Ready Freddy

Flood preparedness guru Flood Ready Freddy provides you with all the info you need to get flood ready all year round.

Events

Holiday July 5, 2021

Independence Day Holiday

Office Closed

Meetings May 19, 2021 - 7:00pm - 9:00pmJune 16, 2021 - 7:00pm - 9:00pmJuly 21, 2021 - 7:00pm - 9:00pmAugust 18, 2021 - 7:00pm - 9:00pmSeptember 15, 2021 - 7:00pm - 9:00pmOctober 20, 2021 - 7:00pm - 9:00pmNovember 17, 2021 - 7:00pm - 9:00pmDecember 15, 2021 - 7:00pm - 9:00pmJanuary 19, 2022 - 7:00pm - 9:00pmFebruary 16, 2022 - 7:00pm - 9:00pmMarch 16, 2022 - 7:00pm - 9:00pmApril 20, 2022 - 7:00pm - 9:00pmMay 18, 2022 - 7:00pm - 9:00pm Monthly on the third Wednesday

Regular Board Meeting

Holiday September 6, 2021

Labor Day Holiday

Office Closed

View Full Calendar

News & Updates

Zone 7 Committed to Ensuring the Continued Safety of the Tri-Valley’s Water Supply

Zone 7 Launches New, User-Focused Website

Tri-Valley Water Agencies Ask Customers to Reduce Water Use by 10% from Last Year

All News & Updates

Meeting Agendas

Agendas June 29, 2021 - 3:15pm - 4:15pm

Water Resources Committee Meeting Agenda

Archived Board Documents

Kids Zone

Educating Future Generations

Check out our educational resources curriculum for first through eighth grades and learn about new and ongoing initiatives to further improve water quality.

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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.