The Tri-Valley had a water conservation rate of 19% in the month of June 2022 compared to June 2020

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 our 2020 Consumer Confidence Report

Step inside the wondrous world of water and learn how Zone 7 Water Agency ensures that our drinking water is safe, clean and sustainable.

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

Annual Tree Lighting

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Public Events

Breakfast with Santa

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View Full Calendar

News & Updates

Zone 7 Board of Directors adopt wholesale water rates for Calendar Years 2023, 2024, 2025 and 2026

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Zone 7 Receives Esteemed Financial Award from the GFOA for Sixth Year in a Row

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Zone 7 Board of Directors Kick Off Public Meetings on Wholesale Water Rates

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All News & Updates

Meeting Agendas

Agendas

Finance Committee Meeting

November 10, 2022

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Agendas

Finance Committee Meeting Supplemental Material

November 10, 2022

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Agendas

Regular Board Meeting

November 16, 2022

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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.