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Sacramento Groundwater AuthorityAlso managed with SGARegional Water Authority
Rehabilitated groundwater well pump and piping at Well 139 in Sacramento
Well 139, Lathrop Way

Sacramento Groundwater Authority

Managing the groundwater basin north of the American River

The Sacramento Groundwater Authority (SGA) is a joint powers authority created to collectively manage the Sacramento region’s North Area Groundwater Basin, which includes all of Sacramento County north of the American River.

Read basin conditionsFind a board packet

Basin Lens

Basin and Surface

SGA manages the basin below ground. Regional supply above ground, including the Water Bank, is the Regional Water Authority’s work. Choose a layer.

River cobbles over banded aquifer strata with roots reaching the water table

SGA / North Area Basin

Groundwater conditions and management

SGA manages the groundwater basin north of the American River. Monitoring, annual reports and the Groundwater Sustainability Plan guide its work.

Read about the basin

Start with a task

How Can We Help?

BasinRead basin conditionsGroundwater levels, monitoring and the annual basin report.SGA boardFind a board packetAgendas, packets and presentations by meeting date.DocumentsRead the Sustainability PlanThe Groundwater Sustainability Plan, reports and studies.DocumentsSearch public documentsPlans, reports and presentations, searchable inside the text.RWA websiteExplore the Water BankRegional surface supply and groundwater banking.OfficeContact the right teamBasin staff, public records and board coordination.
A field technician measures groundwater beside a monitoring well
Groundwater monitoring in the North Area Basin

Our groundwater

More Than a Third of the Region’s Water

Groundwater meets more than a third of the Sacramento region’s water needs during a normal year, and even more during drought periods.

While groundwater is being critically depleted in other parts of the state, the Sacramento region’s groundwater aquifer is stable and sustainable.

How SGA works
Groundwater contour lines washed in basin blue

Newsletter

Stay Current on Regional Water News

The Sacramento Groundwater Authority distributes periodic news and information about Sustainable Groundwater Management Act (SGMA), groundwater issues, opportunities and events.

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