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Replenishment Assessment Act
Under the authority of the Replenishment Assessment Act of the Alameda County Water District, ACWD charges operators of water production facilities an assessment based on the quantity of groundwater produced. 

Download a copy of the Replenishment Assessment Act.

Replenishment Assessment rates are reviewed annually; effective July 1, 2016, the assessment is $8.00/acre-foot for agricultural and municipal-recreation uses and $370.00/acre-foot for all other uses. Water wells, dewatering wells, and chemical investigation extraction wells are considered water production facilities.