Beginning in 2025, the department of ecology's biennial progress report required in RCW 90.48.465(7) must include information on the implementation of a revised fee structure for full cost recovery for municipal wastewater discharge permits and the use of the fees to administer the municipal discharge permitting program and issue permits in a timely manner. The biennial report must also include information demonstrating progress towards achieving the goal of reducing the wastewater discharge permit backlog to no more than 40 percent by July 1, 2025, and not more than a 20 percent backlog by July 1, 2027.