In November 2021, seven Groundwater Sustainability Agencies (GSAs) in the Cosumnes Subbasin formed the Cosumnes Groundwater Authority (CGA). With the responsibility of implementing the Cosumnes Subbasin Groundwater Sustainability Plan, CGA strives to be a hub of information regarding groundwater sustainability within the Cosumnes Subbasin.

Austin Miller

CGA Administrator

Stephen Julian

Watershed Coordinator

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Cosumnes Groundwater Authority

8970 Elk Grove Blvd.

Elk Grove, CA 95624

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CGA Staff


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