The Sanitary District in order to provide further funds required for paying the cost of the works described in Section 9.1 which have been made necessary by the decree of the Supreme Court of the United States cited in Section 9.1, may issue, in addition to all other bonds heretofore or herein authorized, such bonds of said sanitary district in an amount not to exceed $21,000,000 for such purposes without submitting the question of such issuance to the legal voters of such sanitary district for approval. All of the bonds authorized under Section 9.2 have been issued but not all have been paid as they had not matured in 1959 at the time of the adoption of these amendments.
70 ILCS 2605/9.2