California Code, Health and Safety Code - HSC § 5025

All necessary preliminary expenses incurred by the governing body in carrying out this chapter, including the making of surveys, plans, and estimates of costs and revenues, compensation of employees, the giving of notices, taking of options, and all other expenses of whatsoever nature, necessary to be paid prior to the issue and sale of the bonds, may be advanced out of the general fund of the district. The general fund shall be fully reimbursed out of the first money received from the sale of the bonds, and before any other disbursements are made therefrom.