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BWD/COUNTY PROP ONE GRANT APPLICATION

BORREGO BASIN GROUNDWATER SUSTAINABILITY PLAN - GSP

After decades of excessive pumping, the Borrego Groundwater Basin is critically over drafted and dramatic reductions in water consumption by current and future water users are needed to bring the Basin into sustainability. The latest estimate, based on a 2015 study conducted by the United States Geological Service (USGS), calculates the over draft of the Borrego Basin to be approximately 13,000 acre feet or 4.2 billion gallons per year. This amount of water is equal to approximately 70% of the current total municipal, recreational/irrigation and agricultural water demands of 19,100 acre feet per year. The 2015 USGS study also concluded that on average 5,700 acre feet of inflow comes into the Borrego Basin annually, therefore an estimated reduction in yearly water usage from 19,100 acre feet down to 5,700 is needed for sustainability (-70%). The County of San Diego and Borrego Water District, in cooperation with stakeholder groups in the Valley are now embarking upon the development of the Borrego Basin Groundwater Sustainability Plan (GSP) .

GroundWater planning

SGMA