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How We Serve You
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.
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.
News & Updates
Tri-Valley Water Agencies Encourage Local Business Community to Reimagine Its Landscaping
A statewide ban on irrigating non-functional turf at non-residential properties is now in effect.
Read moreZone 7 rolls out ozonation water treatment process at Patterson Pass Water Treatment Plant
Ozone replaces chlorine as main disinfectant, enhancing quality of finished water
Read moreMeeting Agendas
Special Board Meeting
June 29, 2022
Read moreLegislative Committee Meeting
June 23, 2022
Read moreKids 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.