; (2) to affect, reduce, modify, or impair the United States authority to regulate and manage water in the Yakima Basin, including water diverted into the Chandler Power Canal and Prosser Dam through and including the Kennewick Irrigation District’s head gate; (3) to change how water is diverted at Prosser Dam and delivered to the Kennewick Irrigation District through the Chandler pumps through the District’s head gate