AN ORDINANCE relating to the Harbor Island Superfund Site; authorizing Seattle…

The Harbor Island Superfund Site is one of the largest Superfund sites in the United States, located at the mouth of the Duwamish River in Seattle. It has been contaminated for decades by industrial activity including shipbuilding, manufacturing, and port operations. The East Waterway Operable Unit is a specific geographic portion of this larger site where the EPA has issued cleanup orders under the federal Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), commonly known as Superfund law. This ordinance grants Seattle Public Utilities and Seattle City Light the legal authority to formally consent to those EPA orders. Under CERCLA, potentially responsible parties (PRPs), which can include government utilities that contributed to or are connected to contamination, must either comply with EPA orders or face significant legal and financial penalties. By authorizing consent, the city avoids potential treble damages and litigation costs while demonstrating cooperative engagement with federal regulators. The cost-sharing provision is significant because Superfund cleanups are often handled through multi-party agreements where all PRPs contribute proportionally to remediation costs. This ordinance allows Seattle's utilities to negotiate and enter those agreements, which is a practical necessity for implementing the cleanup efficiently. The authorization to spend beyond the annual budget, grounded in RCW 35.32A.070 of Washington State law, reflects the unpredictable and often multi-year nature of Superfund remediation timelines and costs. Fiscally, the ordinance does not specify a dollar amount, which is common at this authorization stage. Superfund cleanups can range from millions to hundreds of millions of dollars depending on contamination severity, cleanup method, and the number of PRPs sharing costs. Ratepayers of Seattle Public Utilities and Seattle City Light could ultimately bear some portion of costs not recovered from other parties. The affected area includes industrial users, shipping and port operations, commercial fisheries, and communities near the Lower Duwamish Waterway. The broader context involves decades of environmental advocacy by local tribes, including the Duwamish Tribe, and environmental justice communities near the river who have sought full remediation. This ordinance represents a procedural step within a long-running federal cleanup process rather than a new policy initiative.

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The Seattle City Council is considering an ordinance that authorizes two city-owned utilities, Seattle Public Utilities and Seattle City Light, to formally agree to cleanup orders issued by the U.S. Environmental Protection Agency for the East Waterway Operable Unit of the Harbor Island Superfund Site. The ordinance also allows those utilities to enter agreements with other companies and entities to share the costs of carrying out that cleanup. It grants authority to commit funds beyond what was included in the city's approved annual budget, consistent with a specific provision of Washington State law that permits such commitments in environmental remediation contexts. Supporters of the ordinance, including city utility administrators and environmental regulators, argue that formal compliance with EPA orders is both legally necessary and fiscally prudent. Under federal Superfund law, parties that refuse to comply with EPA cleanup orders can face penalties up to three times the cost of the cleanup, meaning that delay or refusal would expose Seattle ratepayers to far greater financial risk. Proponents also note that cost-sharing with other potentially responsible parties, such as industrial operators and port authorities, distributes the financial burden more broadly rather than placing it entirely on city residents. Critics and fiscal watchdogs raise concerns about the open-ended nature of the spending authorization. Because the ordinance does not set a specific dollar ceiling on commitments, some observers worry that utility customers could face significant rate increases without clear advance notice. There are also questions about whether the EPA-selected remediation method represents the best balance of cost and effectiveness, and whether Seattle's utilities might end up paying more than their equitable share if private parties successfully limit their own liability through litigation. For ordinary Seattle residents, the practical effects will likely be felt through utility bills over the coming years, depending on how cleanup costs are ultimately allocated among responsible parties. More broadly, the remediation of the East Waterway has long been a priority for communities living and working near the Lower Duwamish River, including Indigenous tribal members with treaty fishing rights in the area. This ordinance is a procedural step in a cleanup process that began in the early 1980s, and its passage would move Seattle closer to formal participation in what is expected to be a multi-year, multi-party environmental restoration effort.