This Act may be cited as the Western Tribal Water Act of 2026.

Congress finds that— (1) the Upper Colorado River Basin is home to several Indian Tribes that face a variety of challenges for water supply reliability, including over $100,000,000 in water infrastructure needs; (2) the Ute Mountain Ute Tribe in particular has a project with an estimated cost of $50,000,000 to fix aging drinking water delivery infrastructure in southwestern Colorado; and (3) the Indian Reservation Drinking Water Program under section 2001 of the America's Water Infrastructure Act of 2018 (42 U.S.C. 300jU.S. Code — Title 42, Section 300jView official source on GovInfo–3c note; Public Law 115–270Public Law 115-270View official source on GovInfo) helps Indian Tribes in other drought-stricken basins across the Western United States improve their drinking water supplies and other water services.

Section 2001 of the America's Water Infrastructure Act of 2018 (42 U.S.C. 300jU.S. Code — Title 42, Section 300jView official source on GovInfo–3c note; Public Law 115–270Public Law 115-270View official source on GovInfo) is amended— (1) in subsection (c)(1)— (A) in subparagraph (D), by striking and at the end; (B) in subparagraph (E), by striking the period at the end and inserting; and; and (C) by adding at the end the following: (F) 10 eligible projects described in subsection (b) that are within the Upper Colorado River Basin.; and (2) in subsection (g)— (A) in paragraph (1), by striking and at the end; (B) in paragraph (2), by striking the period at the end and inserting; and; and (C) by adding at the end the following: (3) $60,000,000 for each of fiscal years 2027 and 2028..