California Code, Government Code - GOV § 53314.6

(a) In connection with the financing of services and facilities pursuant to subdivision (f) of Section 53313 and subdivision (k) of Section 53313.5, the legislative body may establish a revolving fund to be kept in the treasury of the district.  Except as provided in subdivision (b), moneys in the revolving fund shall be expended solely for the payment of costs with respect to those services and facilities.  The revolving fund may be funded from time to time with moneys derived from any of the following:

(b) Subject to the provisions of any resolution, trust agreement or indenture providing for the issuance of district bonds for the purposes set forth in subdivision (k) of Section 53313.5, the legislative body may withdraw money from the revolving fund whenever and to the extent that it finds that the amount of money therein exceeds the amount necessary to accomplish the purposes for which the revolving fund was established.  Any moneys withdrawn from the revolving fund shall be used to redeem bonds of the district issued for the purposes set forth in subdivision (k) of Section 53313.5 or shall be paid to taxpayers in the district in amounts that the legislative body determines.