AN ACT Relating to increasing transparency regarding sewage-containing spills;
Summary
HB 1670 is a transparency bill aimed at improving public access to information about sewage-containing spills in Washington. The bill finds that owners and operators of municipal wastewater treatment plants and wastewater collection systems are already required to report unauthorized spills or discharges of untreated or under-treated sewage to the Department of Ecology, but that those notices are not always easy for the public to find. To address that gap, the bill requires the department to create and maintain a public-facing website by July 1, 2026, with notices of reported sewage spills and related incident details.
The website must include key spill information such as the estimated and final discharge volume, the level of treatment, the date and time the incident began and ended, the location, the geographic area potentially impacted, and the steps taken to contain the discharge. The department must also update the site after a spill concludes with final information reported to the agency. The bill directs the website to be designed to effectively communicate with people with limited English proficiency.
Impact
The bill adds new sections to chapter 90.48 RCW and creates a new public-notice requirement for the Department of Ecology. It does not change the underlying spill-reporting obligations of wastewater facilities, but it expands how spill information must be disclosed and made accessible to the public. Affected parties include municipal wastewater treatment plant owners and operators, wastewater collection system operators, the Department of Ecology, and communities that may be impacted by sewage spills, including fishers, aquaculture workers, and others relying on clean water.
Sentiment
The overall sentiment appears strongly supportive and largely noncontroversial. The bill advanced unanimously through House and Senate committee votes and passed both chambers without any recorded dissent, suggesting broad agreement on the need for greater transparency and faster public access to sewage spill information. The legislative findings also frame the measure as a public health, environmental, and community-information improvement.
Contention
No major opposition is reflected in the available voting history or transcripts. The main policy issue underlying the bill is not whether spill reporting should exist, but whether the state should provide a more accessible, centralized, and timely public notification system. The bill’s emphasis on near-real-time public posting, final spill updates, and accessibility for people with limited English proficiency suggests the principal concern was improving usability and reach of existing spill data rather than changing environmental enforcement standards.