Amends the Colorado Ute Indian Water Rights Settlement Act of 1988 to require: (1) the Secretary of the Interior to assure that not less than one-third of funds appropriated for economic development through each tribe's Tribal Resource Fund be expended for municipal or rural water development; and (2) funds appropriated by this Act and placed in the Southern Ute and Ute Mountain Tribal Resource Funds which have not been disbursed by December 31, 2020, to be deposited in the general fund of the Treasury.