70 ILCS 605/7-9

When an order organizing a subdistrict is given or made, the subdistrict shall become a body politic and corporate under the name set forth in the order and shall have all the powers of a main district as provided in this Act. The organization of a subdistrict shall not operate to release the land in the subdistrict from the payment of any assessment in the main district, whether theretofore or thereafter levied, and neither shall it give such subdistrict any claim on the funds of the main district for its local use.