in cooperation with the Board of Water Supply, City and County of Honolulu, Hawaii, participate in the design, planning, and construction of a project in Kalaeloa, Hawaii, to desalinate and distribute seawater for direct potable use within the service area of the Board;

in cooperation with the County of Hawaii Department of Environmental Management, Hawaii, participate in the design, planning, and construction of facilities in Kealakehe, Hawaii, for the treatment and distribution of recycled water and for environmental purposes within the County; and

in cooperation with the County of Maui Wastewater Reclamation Division, Hawaii, participate in the design, planning, and construction of, and acquire land for, facilities in Lahaina, Hawaii, for the distribution of recycled water from the Lahaina Wastewater Reclamation Facility for non-potable uses within the County.