Providing funding for enhanced wastewater treatment infrastructure for salmon recovery.

HB 1678 imposes a 10-cent fee per gallon on municipal wastewater treatment plants and combined sewer systems discharging untreated sewage into Puget Sound or connected waterways. The funds collected will be deposited into a dedicated account to provide grants for municipalities to upgrade infrastructure that removes excess nutrients from discharges. This aims to improve water quality by reducing nutrient pollution that harms salmon habitats and causes low-oxygen conditions in Puget Sound. The bill directly affects municipal wastewater systems within the Puget Sound watershed and requires annual reporting on untreated sewage discharges.