Cal. Water Code § 10709

For purposes of groundwater management, a local agency authorized to establish programs for the management of groundwater resources pursuant to this part may, in addition to the powers set forth in this act, exercise any of the powers of a water replenishment district under Part 4 (commencing with Section 60220) of Division 18 and may levy a water replenishment assessment in accordance with Part 6 (commencing with Section 60300) of Division 18.