This property has a documented history as a industrial and manufacturing facility going back to 1914. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
The Lake Union Steam Plant was constructed by the City of Seattle between 1914 and 1921, operating fourteen boilers that drove three generator turbines to produce electrical power; the plant ran at full capacity until 1978 and provided standby power through 1987. Remediation has proceeded in phases since 1986 and has included removal of an 800,000-gallon above-ground fuel tank and three underground storage tanks totaling 39,500 gallons, excavation of contaminated fill and soils, PCB decontamination, asbestos abatement, recovery of oil-contaminated debris and sediments, and groundwater dewatering. The site was formally listed as contaminated in 1993, cleanup phases ran from 1990 through 1992, and additional remediation actions remained required as of 2017. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
Why Historical Insurance Policies May Be Accessible
Pre-1986 Commercial General Liability (CGL) policies were occurrence-based and did not contain an effective pollution exclusion in Washington. If contamination occurred while those policies were active, those historical insurance carriers may still have a legal obligation to fund the cleanup costs, even if the business closed or the property changed hands.
All contamination at this property — PCBs, lead, mercury, polycyclic aromatic hydrocarbons from Bunker C fuel oil, and asbestos — is attributed to industrial power-generation operations that began in 1914, more than six decades before the 1986 occurrence-based CGL cutoff. PCB removal was already underway at the plant in 1986, and investigations initiated in 1987 explicitly tied the contamination to past LUSP operations rather than any subsequent incident. The scale of documented remediation expenditures — tank removals, soil excavation, hazardous-material decontamination, long-term groundwater management — combined with outstanding future cleanup obligations, makes the pre-1986 CGL policies issued to the plant's operators a material avenue for cost recovery.
Restorical's role is to locate viable historical policies, determine whether a successful coverage claim is possible, and assist our clients and their legal counsel to obtain insurance coverage. Restorical then manages the claim, including accounting, to ensure the cleanup is funded in a timely manner.
What We Look For
- Historical insurance policies (pre-1986)
- Policy numbers, carrier names, and coverage periods
- Connection between contamination timing and policy period
- Evidence linking cleanup obligation to insured activity
What We Deliver
- Historical Coverage Chart
- Trigger Analysis & Property/Policy Nexus
- Coverage strategy with recommendations
- Insurance funding for your remediation
- Claims Management & Forensic Accounting
The Restorical Proven Process
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Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


