Bill > SB5635

This bill addresses the approval process for alternative on-site sewage systems (alternative septic systems) by modifying existing state law. The legislation recognizes that traditional septic systems can contribute to water pollution and that new technologies offer viable alternatives. The bill requires local health officers to respond to permit applications within 30 days, specifying that they must approve, deny, or mark the application as pending. If an application is denied, the health officer must provide a written justification based on public health, environmental protection, or regulatory concerns. The bill also prevents local health officers from arbitrarily limiting alternative sewage systems without specific, documented reasons. Importantly, the bill introduces a new provision that requires local health officers to approve alternative on-site sewage disposal systems near water bodies with established total phosphorus limits, provided the systems meet specific criteria: they must use the highest treatment level, not violate water quality standards, and use subsurface soil disposal. The bill explicitly states that it does not change or limit existing provisions in the state's water quality laws, ensuring that environmental protections remain intact while facilitating the use of more advanced sewage treatment technologies.

Government Affairs

https://app.leg.wa.gov/billsummary?BillNumber=5635&Year=2025&Initiative=false