Where the interests of two (2) or more irrigation districts and the interests of the contracting landowners will be served thereby, lands in two (2) or more irrigation districts may be included in a contract entered into by the districts and the landowners under the authority of section 43-330A, Idaho Code, and the contract shall specify how the ownership, management, operation, maintenance, repair and replacement of the distribution system shall be divided between or among the districts, and shall provide that all assessments for construction costs and for costs of operation, maintenance, repair and replacement against any tract of land included in the contract shall be levied and collected by the district in which that tract is located.