Cal. Water Code § 72141

To accomplish the purposes of this chapter, the primary district shall cause a production assessment or assessments to be levied each year at a uniform annual rate of two dollars ($2) per acre-foot of production from the Chino Basin, or in such lesser amount as may be determined pursuant to Section 72142. The authorized purposes for such production assessments are as follows: (a) To purchase supplemental water to be used in the aid of studies and investigations authorized under subdivision (b), provided that the total expenditures for such purpose from all production assessments levied pursuant to this chapter shall not exceed the sum of four hundred thousand dollars ($400,000). (b) To pay the costs and expenses incurred during or after the 1974–75 fiscal year for studies and investigations, including systems analysis, to develop a management plan for the water resources of the Chino Basin, including studies and investigations incident to actions and proceedings authorized under subdivision (c). (c) To pay costs and expenses incurred during or after the 1974–75 fiscal year for actions and proceedings authorized by the primary district under Sections 71751 and 71757 and related to the development and implementation of such water management plan for the Chino Basin. (d) To pay costs and expenses incurred during or after the 1974–75 fiscal year for the administration of this chapter, including advisory committee expenses, and to pay or reimburse costs and expenses of the Chino Basin districts incurred for the administration of this chapter.