Cal. Water Code § 10609.80
(a) The department shall take both of the following actions to support implementation of the recommendations of its County Drought Advisory Group:
(1) Maintain, in partnership with the state board and other relevant state agencies, the risk vulnerability tool developed as part of the County Drought Advisory Group process and continue to refine existing data and gather new data for the tool, including, but not limited to, data on all of the following:
(2) Update the risk vulnerability tool for small water suppliers and rural communities periodically, by doing all of the following:
(b)