(1) Enter into contracts and agreements to do any act or thing which either could have done if the annexation had not occurred.
(2) Contract and agree for the collection by the district of any water user tax or charge imposed by the city upon water users within the territory of the city, and the district thereupon may provide for such collection according to its rules and regulations for the collection of amounts due the district by water users, including but not limited to shutting off the water supply for nonpayment. [1955 c.692 §1; 1969 c.666 §38; 1971 c.727 §83; 1983 c.142 §14]