The Del Valle Water Treatment Ozonation Project is now online and actively serving the Tri Valley community! The Ozonation Project is the latest investment by Zone 7 in providing high-quality water that meets the rigorous Zone 7 standard. The Del Valle Water Treatment Plant, which has been serving us well since it was built in the 1970s, was upgraded and expanded to add raw water ozonation to the plant’s existing treatment process. The Ozonation Project brings best-in-class technology for disinfection to our water treatment, and represents a capital investment of $49 million, funded by bonds. As part of our commitment to high-quality water, Zone 7 is investing in ozone treatment because it is the best alternative to chlorine. Take a behind-the-scenes look at the new facility in our grand opening video.
To learn more about the ozone treatment process at our Del Valle Plant click here.
We are committed to delivering a safe and reliable water supply to our customers. Zone 7 started proactively monitoring for PFAS in 2013 and has been following the State Water Resources Control Board's quarterly monitoring Order since January 2019. The results from monitoring are updated each quarter and can be found here. While some wells have shown levels of PFAS above the recommended Response Levels (RLs), we follow approved treatment methods to ensure that all water delivered to our customers is below the RL.
We will continue to closely monitor the quality of our community’s drinking water supplies, utilizing proven technologies and best practices to ensure that any emerging PFAS issues are managed in a transparent and responsible manner.
Explore the Wondrous World of Water in Zone 7’s 2019 Annual Consumer Confidence Report
Explore “The Wondrous World of Water” in this easy-to-navigate report featuring graphics illustrating the sources, treatment, safety and testing of Zone 7 Water. Learn about new and ongoing initiatives to further improve water quality, including the installation of ozonation treatment and efforts to further reduce common contaminants of emerging concern, such as PFAS. The report highlights that Zone 7 water supplied in 2019 met the regulatory standards set by the state and federal governments – and, in almost all cases, the quality was significantly better than required. You can visit Zone7water.com/CCR2019 to read the report.
We understand there are many questions about the Coronavirus (COVID-19) crisis. As a resource to our customers, we have developed information that may answer some of your questions which can be viewed here.
Access to clean and safe water is critical during this public health crisis. To protect public health and assist customers who are financially struggling during the COVID-19 outbreak our retail partners which include California Water Service, Dublin San Ramon Services District, the City of Livermore and the City of Pleasanton have all temporarily suspended shut-offs due to non-payment during this time.
COVID-19 Has No Impact on the Safety or Supply of Your Drinking Water
In light of concerns surrounding COVID-19 (coronavirus), Zone 7 Water Agency would like to reassure residents and businesses that this virus has no impact on the safety or supply of your drinking water. EPA recommends that Americans continue to use and drink tap water as usual. The World Health Organization (WHO) has stated that the, “presence of the COVID-19 virus has not been detected in drinking-water supplies and based on current evidence the risk to water supplies is low.”
For more information and updates please see:
As always, Zone 7 is committed to providing its customers with a safe and reliable source of water. Zone 7 potable (drinking) water meets, and in most cases exceeds all stringent state and federal drinking water requirements. Zone 7’s most recent Annual Water Quality Report is available on our website: #/36-public/content/120-consumer-confidence-report
Celebrate California Coastal Cleanup Month 2020 by Protecting Your "Happy Place"
Cleaning the coast starts at our own front doors. By protecting and caring for our watershed, we also keep our waterways and the ocean clean too! “Storm drains,” those grates in the street commonly referred to as the "gutter," flow directly to creeks, wetlands and the Bay. When stormwater washes off our roofs, streets, driveways and gardens, it carries dirt, pollutants and trash from these surfaces into the storm drains and then into creeks, wetlands and eventually, the Bay. This year, together with your family, you can protect your "Happy Place" by picking up litter in your favorite neighborhoods, local parks, or trails. We want you to remain safe, so please remember to practice physical distancing, and strictly follow both local ordinances and this safety document. Report your cleanup by recording data on the CleanSwell app or by completing this form. (You can also use that form to enter the Most Unusual Item Contest.) All cleanups in September will be included as part of Coastal Cleanup Month.
Before You Go, Check the Map!
New and Improved Interactive Trail Maintenance Map
Each year we have a short construction window to complete important repairs and maintenance to ensure your flood protection system is safe and secure. We understand how important excercise and recreation along the trails is, especially as we are dealing with sheltering in place. We have revised and updated our interactive trail maintenance map to make it more user friendly, easier to read and more responsive to mobile devices. On the map you can get information on trail closures, as well as pending and completed projects along Zone 7 flood channels. Click here to view the interactive trail map.
Hometown Water: The Lifeline of Pleasanton
The Go Green Initiative and local students present their new documentary, "Hometown Water: The Lifeline of Pleasanton." This 40 minute video explores the endless importance of water's role in the town of Pleasanton. Join us in following Pleasanton's water journey, from historical water use to future water necessities, to understanding why it's imperative that we conserve water use now and into the future. The documentary can be viewed here.
Zone 7's Schools Program Visits Over 660 Classrooms Each Year
Curious about what our classroom instruction is like?
Get an insider's peek into Zone 7's Schools Program of courtesy Fairland's Elementary School 5th Grade Teacher Mrs. McCutcheon. Take a look at to see how local students experience "Life as a Water Molecule." A big thank you to Mrs. McCutcheon for putting together such a wonderful video about our program! And to learn more, visit the Kid's Zone.
Want to stay up to date on our Schools Program? Check out our newly launched Kids' Zone eNewsletter.
Weather and Emergency Resources
The following are some resources to help you be ready for the next storm.
Arroyo Seco Mural Pilot Project
A big thank you to all of the volunteers that came out to assist us with the Arroyo Seco Mural Pilot Project. We will pick up where we left off in fall 2020.
Strategic Planning Priorities
Zone 7 establishes Strategic Planning Priorities in order to focus on its most immediate needs in an efficient and cost-effective manner. These Strategic Planning Priorities have been updated for 2019 and can be viewed at the bottom of Zone 7's Misson, Vision & Values page, along with the previous 2017 Strategic Planning Priorities.
Major Capital Project Updates
Zone 7 implements capital improvement projects to continue providing a reliable supply of high quality water, flood protection, and groundwater basin management. Click on the links below to obtain more information about the major projects in progress:
Sustainable Groundwater Management Plan
Zone 7 Water Agency is the governing Groundwater Sustainability Agency (GSA) for the Livermore Valley Groundwater Basin and has managed the Basin sustainably for more than 40 years. Zone 7 submitted an Alternative Groundwater Sustainability Plan in accordance with the Sustainable Groundwater Management Act (SGMA) adopted by the State Legislature in 2014. As required by SGMA, Zone 7 completed its most recent Annual Report for the Sustainable Groundwater Management Program 2019 Water Year.
Proposed Changes to Mining and Reclamation Activities in the Chain of Lakes Area
The County of Alameda has started an environmental review process related to proposed changes in mining and reclamation activities in the Chain of Lakes area, primarily near Lakes A and B. Please see the link below for recent public notice documents from the County of Alameda and refer to the County's Neighborhood Preservation and Sustainability Pending Projects page for a complete list of documents and updates.
Preliminary Lake Use Evaluation for the Chain of Lakes (2014)
The purposes of this 2014 study are to identify which potential lake uses may be more suitable for individual former quarries – especially where conflicting proposed alternatives uses may exist – and provide a framework for evaluating proposed uses as lakes are transferred to Zone 7 ownership. The evaluation generally does not preclude any given lake from distinct uses, but instead provides a tool for examining the benefits or impacts associated with a proposed use.
"Living Arroyos" Program
This partnership aims to restore the urban streams and streamside habitats of the Livermore-Amador Valley while continuing to protect drinking water supplies and prevent flooding. To learn more, including about volunteer opportunities, visit our Living Arroyos page.
***Update: Living Arroyos volunteer events are cancelled through April due to COVID 19. Check back for updates.***
Water-Wise Gardening Tips Online!
Tri-Valley Water-Wise Gardening is an interactive website loaded with lots of useful information specifically for Tri-Valley gardeners. It includes photos, a searchable plant database, water-saving tips, and much more!