Water Preservation and Affordability Act of 2025

The Water Preservation and Affordability Act of 2025 amends the Clean Water Act to require federal water infrastructure funding recipients to prioritize "resource preservation techniques," defined as water efficiency (reuse, conservation), energy efficiency, stormwater mitigation, sustainable design, and environmental innovation. It mandates that projects receiving loans for treatment works repairs or expansions must evaluate and use these techniques to the maximum extent practicable. The bill increases annual funding for the Clean Water Infrastructure Resiliency Program from $25 million to $50 million (2026-2031) and authorizes $40 million yearly for a wastewater efficiency pilot program (2026-2031). These changes directly affect municipal water systems and wastewater treatment facilities receiving federal grants or loans under the Clean Water Act.