70 ILCS 605/1-5
All districts heretofore organized or existing under any act repealed by this Act are declared to be legally organized and shall continue in existence and henceforth operate under this Act. All assessments therein made and all other proceedings therein taken, if in substantial conformity to law, are declared to be valid and legally made or taken. The officers of any such district and the districts themselves shall have and possess all the rights, powers, privileges, duties and obligations of the officers and districts under this Act. Any proceedings begun under a prior act repealed by this Act shall be continued and carried on under this Act to the same extent and with the same effect as though they had been commenced under this Act.
70 ILCS 605/1-5