Consumer Confidence Report 2024
2024 Annual Report
FMP Evaluation Results
Chain of Lakes PFAS Treatment Facility
Water Academy
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Smart Irrigation Rebate
High Efficiency Water Rebate
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Tri-Valley Solutions

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.

Meeting Agendas

Agendas

Regular Board Meeting

June 18, 2025

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Meeting Agendas

News & Updates

2024 Annual Consumer Confidence Report Confirms High Quality of Zone 7 Water

Zone 7 drinking water performed significantly better than the required state and federal health standards during 2024.

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All News & Updates

Meetings and Events

Meetings

Regular Board Meeting

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Featured Video

Where in the world does your water come from?

Where in the world does your water come from?

Storm Alert: Outlook

Currently, there is no known risk. Zone 7 is monitoring weather conditions. 

Stay ready for flood season by making sure you are prepared ahead of time. You can get more flood preparedness tips and resources at zone7water.com/preparedness.

Flood Safety Tips

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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