Mo. Rev. Stat. § 278.145

The county commission of any county or the governing body of any city, town or village in which a soil and water conservation district lies in whole or in part may cooperate with the supervisors of the district in carrying out the purposes of the district program, and in the event the county commission or governing body finds that the benefits accruing to the county or municipal area by reason of the program of the soil and water conservation district justify such action, the county commission or governing body may contribute money, services or the use of equipment to the district.