Annual Consumer Confidence Report
Draft Urban Water Management Plan
Draft Water Shortage Contingency Plan
Interactive Trails Map
Annual Report
Water Efficient Landscape Conversion Rebate
Smart Irrigation Controller Rebate
Planning for Chain of Lakes
FMP Evaluation Results
Chain of Lakes PFAS Treatment Facility
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 17, 2026

Read more
Meeting Agendas

News & Updates

2025 Annual Consumer Confidence Report Confirms High Quality of Zone 7 Water

Report highlights PFAS Clean investments, advanced treatment facilities, and continued compliance with state and federal drinking water standards.

Read more
All News & Updates

Meetings and Events

Meetings

Regular Board Meeting

Read more
View Full Calendar
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.

STAY CONNECTED

Get our latest news, events and updates straight to your inbox!

Image CAPTCHA
Enter the characters shown in the image.