This property has a documented history as a industrial and manufacturing facility going back to 1900. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
The northern portion of this property contains subsurface fill composed of clinker and boiler scales — coal-fired boiler waste apparently deposited along the Lake Union shoreline in the early 1900s. The contamination was discovered during sewer line construction in late 1990 and early 1991, triggering an independent remedial action that included the excavation and off-site disposal of approximately 350 to 570 or more cubic yards of clinker material containing PAHs and lead. A quarterly groundwater monitoring program was recommended to assess potential contaminant migration into Lake Union, and cleanup work is ongoing. 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.
The contamination here originates from industrial fill deposited more than eight decades before cleanup was required — coal-fired boiler waste laid down in the early 1900s that remained in place until uncovered by construction excavation in 1990. Operations generating that waste predate the modern regulatory framework entirely, placing them squarely in the era when occurrence-based CGL policies were the industry standard and carried no effective pollution exclusion. The documented remediation costs — excavation of hundreds of cubic yards of PAH- and lead-bearing clinker, off-site disposal, and ongoing groundwater monitoring adjacent to Lake Union — represent expenditures that historical carriers may be obligated both to recover and to fund going forward.
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.


