South Reservoir Replacement

South Reservoir, Castro Valley

South Reservoir, Castro Valley

EBMUD recently replaced the South Reservoir, located at the north end of Gail Drive near Grove Way in Castro Valley, with a 9 million gallon water storage tank within the footprint of the existing reservoir basin. The reservoir replacement project improves water quality and increases reliability in the distribution system. The new reservoir was designed to meet current seismic design standards. No significant change was made to the views of the reservoir from surrounding residences as a result of this project, and most of the existing embankment slopes remained in place. Additional landscape screening was planted along the western and southeast edges of the reservoir site perimeter to enhance existing screening of views of the new tank for residents along Grove Way and Gail Drive. 

Workplan and schedule

Though all construction is now complete, you will see EBMUD staff onsite intermittently. We thank you for your patience as we worked to complete this complex and needed project.

Contact information

Laura Luong, Community Affairs Representative
Email: laura.luong@ebmud.com
Phone: 510-287-0140

Emergencies or after-hours, call EBMUD at 866-403-2683

Published studies and other resources

Environmental documentation with additional information is listed below.

Document Type Size
South Reservior Replacement Project Existing Site Plan PDF 1.8 MB
Proposed South Reservoir Replacement Layout PDF <1 MB
Notice of Exemption PDF 5.5 MB
South Reservoir Replacement Project Map PDF <1 MB
Frequently Asked Questions PDF <1 MB