All money received on any special assessment shall be held by the Treasurer as a special fund to be applied only to the payment of the improvement, or bonds and vouchers issued therefor, together with the interest thereon, for which the assessment was made, and the money shall be used for no other purpose, unless to reimburse the Village for money expended for improvement. Payments on bonds or vouchers shall be made in accordance with the statutes and the law and the Treasurer shall keep his or her books and accounts in a manner so proper prorations in payments of principal and interest can be made and ascertained.
('73 Code, § 2-92)