Ohio Rev. Code Ann. § 6101.50
(A) The board of directors of a conservancy district may, if in its judgment it seems best, issue bonds in an amount not to exceed ninety per cent of the total amount of the unpaid portion of an assessment, exclusive of interest, levied under this chapter, to mature at annual or semiannual intervals within thirty years. Whenever the board determines to issue bonds in anticipation of the collection of the installments of an assessment, it shall adopt a resolution, to be known as the resolution of necessity, declaring the necessity of the bond issue, its purpose, and its amount. Thereafter, prior to and in anticipation of the issuance and sale of those bonds, the board may borrow money and issue notes. Whenever the board determines to issue notes, it shall adopt a resolution, to be known as the note resolution. The note resolution shall do all of the following:
(C)
(1) If the board determines not to issue anticipatory notes, or if anticipatory notes are issued and they are about to fall due, the board shall adopt a resolution, to be known as the bonding resolution. The bonding resolution shall do all of the following:
(D)
(G) When the moneys, including the interest or other investment income on the moneys, in the escrow fund referred to in division (E) of this section are determined by an independent public accounting firm to be sufficient for the payment of the debt charges on the previously issued notes or bonds under that division, the following conditions shall apply: