Your WaterFlood and Stream ManagementWatershed and Environment
In The Zone


View the Latest Board Meeting Agenda

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Join us in celebrating "Fix a Leak Week"

Weather and Emergency Resources

The following are some resources to help you be ready for the next storm.


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:


South Chain of Lakes Study

Starting on April 30, 2018, Zone 7 and the quarry operator, CEMEX, are collaborating on a groundwater study near the intersection of Isabel and Vineyard Avenues at Lakes A and B of the future Chain of Lakes facility. The study will include drilling into the ground near the lakes to collect data on aquifer conditions and soil characteristics. Drilling activities are not expected to impact traffic or trail access, as the drill rig will be within the perimeter of the mining area. The study is expected to last about a month.


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.

Preliminary Lake Use Evaluation for the Chain of Lakes



California WaterFix Critical for Zone 7 Water Supply

Efforts to restore the Delta ecosystem and improve water reliability for 25 million Californians, including those living in Zone 7's service area, reached a milestone with release of the updated Bay Delta Conservation Plan, a modified preferred alternative and partially recirculated draft environmental review documents. Visit California Water Fix to learn more.

"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.

Water Wise WebsiteWater-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!

Zone 7 owns many flood control channels and creeks in the Cities of Livermore, Pleasanton and Dublin, and in unincorporated areas of Eastern Alameda County. If you see a spill or dumping in any waterway, follow the directions below to report it:

  1. If a spill is currently happening, call 911.
  2. If the situation is not urgent, call:
  • Zone 7 Administrative offices at (925) 454-5000 during business hours, Monday-Friday, 8 a.m. to 5 p.m.
  • Water Treatment Plant Operator at (925) 447-6704, ext. 1, during non-business hours.





Board Meetings          
 12-17-08 View    View    View
 11-19-08 View   View   View
 10-15-08 View   View   View
   9-17-08 View   View   View
   8-20-08 View   View   View
   7-16-08 View   View   View
   6-18-08 View   View   View
   5-21-08 View   View   View
   4-16-08 View   View   View
   3-19-08 View       View
   2-20-08 View   View   View
   1-30-08 (Special Mtg) View    N/A   View
   1-16-08 View   View   View