Water Code § 138.12

(a) Except as otherwise provided in a general obligation bond act, the maximum amount that may be allocated for administrative expenses shall not exceed 5 percent of the total amount of funds that the department is required to administer and that are derived from a general obligation bond act that is approved on or after January 1, 2007.

(b) The maximum amount that may be allocated for administrative expenses shall not exceed 5 percent of the total amount of funds that result from the sale of revenue bonds by the department.