Contact Us

Groundwater Basin Authority

The Eastern San Joaquin Groundwater Basin  Authority values the information and insights we receive from those who visit our website. We are interested in hearing from you.

Eastern San Joaquin Groundwater Basin Authority
1810 E. Hazelton Avenue
P. O. Box 1810
Stockton, CA 95201
(209) 468-3089

Matt Zidar
Water Resources Coordinator
mzidar@sjgov.org