Oregon Revised Statutes Public Health and Safety § 450.920

The proceeds of the sale of bonds shall be deposited with the county treasurer who is custodian of the funds of the authority and shall be placed by the county treasurer in the sanitary authority fund and credited to a special account or accounts which are designated for use for the particular purpose or purposes for which the bond proceeds are to be used. The proceeds of such bonds shall be used solely for the purpose or purposes indicated in the order calling for election upon the question of the issuance of the bonds and for no other purpose. However, the proceeds of the sale of the bonds may be used for payment of the principal and interest of such bonds and expenses of the formation of the authority.