Welcome to the Northeastern San Joaquin County Groundwater Banking Authority (GBA) website. Formed in 2001, the GBA works to collectively develop locally supported groundwater projects to strengthen water supply reliability in Eastern San Joaquin County.

On July 25, 2007, the Northeastern San Joaquin Groundwater Banking Authority, by unanimous vote, formally adopted the Eastern San Joaquin Integrated Regional Water Management Plan. 

To view the Adopted Eastern San Joaquin IRWMP, click here. 

To view the IRWMP Adoption Press Release, click here. 

		GBA Accomplishments The GBA Board of Directors are proud of the substantial progress that has been made improving water resource reliability. More				Eastern San Joaquin Groundwater Basin Groundwater Management Plan GBA members adopted the Plan on 9/22/04. This plan is a tool for the development of sustainable water supplies for eastern part of the County. More
		Groundwater Data Center The San Joaquin County Groundwater Data Center (GDC) is a Countywide centralized interactive groundwater information vehicle that provides access to groundwater data collected and shared by agencies throughout San Joaquin County. Groundwater data, historic semi-annual groundwater reports and interactive GIS-based mapping tools are available.  More