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SGMA field guides

Know your SGMA position before the next water order.

Your Groundwater Sustainability Agency sets the allocation, the charges and the records it will count. Start with the subbasin and the agency on your allocation notice, then read the guide for that agency.

AgWaterAI shows your recorded water use against that allocation each week, with every water figure labeled measured or estimated. Your GSA's number is the official one.

Find your GSA and subbasin

County lines are not GSA boundaries. Choosing a county here is for browsing; it does not place a parcel in a GSA. Use the agency named on your allocation notice or the official map.

Use your GSA account, not a county average.

Go to the subbasin

Browse by county

County overviews list the subbasins and agencies in each county. They are for browsing, not for placing a parcel.

Bring the allocation statement. We'll work through the math.