EPA v. ASAOC for RD at Harbor Island EWOU - Port of Seattle, City of Seattle, King County

Case summary

This Administrative Settlement Agreement and Order on Consent is entered into voluntarily by the United States Environmental Protection Agency (EPA) and the Port of Seattle, City of Seattle, and King County. This Settlement provides for the performance of a Remedial Design (RD) by Respondents and the payment of certain response costs incurred by the United States at or in connection with the East Waterway Operable Unit (EWOU) of the Harbor Island Superfund Site located immediately to the southwest of the downtown area of Seattle, Washington.

Defendants (3)

• King CountyNamed in complaintNamed in settlement
• City of SeattleNamed in complaintNamed in settlement
• Port of SeattleNamed in complaintNamed in settlement

Facilities (1)

• HARBOR ISLAND (LEAD)

  MOUTH OF DUWAMISH RIVER, SEATTLE, WA, 98134

  Registry ID: 110009314401

Statutes cited

• CERCLA 106A — Imminent & Substantial Endangerment Order
• CERCLA 122A — Agreement to Perform Work Under 104B

Enforcement conclusions (1)

• ASAOC for RD at Harbor Island EWOU - Port of Seattle, City of Seattle, King Countyentered 2025-10-08

  Primary law: CERCLA

Timeline (2 milestones)

• 2025-10-08Final Order Issued
• 2026-01-15Enforcement Action Data Entered