Ed. Code, § 16592

Whenever the Controller determines that any money apportioned to a school district under this chapter has been expended by the district for purposes not authorized by this chapter, or exceeds the final cost of the project which is authorized by this chapter to be paid therefrom, the Controller shall furnish written notice to the board, the governing board of the school district, the county superintendent of schools, the county auditor, and the county treasurer of the county whose county superintendent of schools has jurisdiction over the school district, directing the school district and the county treasurer to pay into the State Treasury the amount of the unauthorized expenditures, or the amount of the excess apportionment, as the case may be. Upon receipt of the notice, the governing board shall order the county treasurer to pay to the Treasurer, out of any moneys in the county treasury available to the school district for that purpose, the amount set forth in the notice. The amount shall, upon order of the Controller, be deposited in the State Treasury to the credit of the State School Construction Fund, to be reapportioned by the board.

The governing body and county treasurer shall make the payments to the Treasurer as provided in this section, and the Controller shall enforce the collection on behalf of the state.