To authorize amendments to a certain water service contract for the Frenchman Unit of the Pick-Sloan Missouri Basin Program.

[AI summary unavailable — showing source text] Directs the Secretary of the Interior to execute an amendatory contract with the Frenchman Valley Irrigation District, Nebraska, with respect to water service to: (1) rescind any construction charge obligations remaining unpaid; and (2) limit the district's annual water service charges to the amount of water delivered to the district. Makes certain irrigation costs which are in excess of the district's repayment ability nonreimbursable.…