Where any sewer system under the jurisdiction of a city, village or incorporated town is tributary to a sanitary district sewer system, and the board of trustees of such sanitary district finds that it will conduce to the public health, comfort or convenience, the board shall have the power and authority to regulate, limit, extend, deny or otherwise control any connection to such sewer tributary to the sanitary district sewer system by any person or municipal corporation regardless of whether the sewer into which the connection is made is directly under the jurisdiction of the district or not.
70 ILCS 2205/14.1