Cal. Water Code § 25333.5

In the case of any district described in Section 20560.2 with respect to construction bonds issued for purposes of financing the works described in that section or bonds issued to refund those bonds, notwithstanding any other provision of this division, the board may determine by resolution entered upon the minutes that a negotiated sale of any bonds of the district payable solely from revenue will be in the best interest of the district, in which case the bonds may be sold at a negotiated sale on terms as may be approved by the board.