If the government of each county and municipality included within the proposed district approves and executes the joint powers agreement or amendment establishing the district or adjusting its boundaries within forty - five days after the public hearing held pursuant to § 46A-10B-5 , the drainage basin utility district is established or its boundaries are adjusted. The district's governing body shall file with the secretary of state a true copy of the agreement establishing the district or adjusting its boundaries. Source: SL 1989, ch 388 , § 10A; SL 1991, ch 375 , § 3.