There is hereby created in and for the state treasury for the state of Missouri a fund to be known and designated as “The Water Pollution Control Bond and Interest Fund”. Upon the issuance of the bonds or any portion thereof, the state board of fund commissioners shall notify the commissioner of administration of the amount of money required, in the remaining portion of the fiscal year during which the bonds have been issued, for the payment of interest on the bonds, and of the amount of money required for the payment of interest on the bonds in the next succeeding fiscal year, and to pay the bonds as they mature. Thereafter, within thirty days after the beginning of each fiscal year, the state board of fund commissioners shall notify the commissioner of administration of the amount of money required for the payment of interest on the bonds in the next succeeding fiscal year and to pay the bonds maturing in such next succeeding fiscal year. It shall be the duty of the commissioner of administration to transfer, at least monthly, from the state revenue fund, after deducting therefrom the proportionate part thereof appropriated for the support of the free public schools, and to the credit of the water pollution control bond and interest fund such sum as may be necessary from time to time until there shall have been transferred to said fund, the amount so certified to him by the state board of fund commissioners, as hereinabove provided.