Industrial & Manufacturing cleanup site — Restorical Research
Port of Seattle N Terminal 115
6000 W Marginal Way, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1963. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This industrial property at the Port of Seattle operated as a tin reclamation and recycling facility from 1963 to 1998, processing steel cans and glass sludge through caustic lye dissolution and electrowinning to produce tin ingots. Waste products from those operations — including "black mud" and spent plating solution — were managed in unlined settling lagoons on site. Historical cleanup has included excavation and recovery of black mud and tin-rich soils from those lagoons, followed by backfilling and paving. The site is currently subject to an Agreed Order requiring remedial investigation, feasibility studies, and cleanup planning, with $48,460.40 in remediation costs documented as of August 2010 and ongoing quarterly payments since. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address6000 W Marginal Way, Seattle, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1963
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsTin-rich soils and "black mud" from caustic lye processing and electrowinning, with spent plating solution, in soil and former settling lagoons
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #1229

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.

Tin reclamation operations at this site ran continuously from 1963 through 1986 — 23 years during which caustic lye processing and unlined settling ponds were releasing contaminants into the soil without any effective pollution exclusion in the CGL policies of that era. The contamination here is the product of slow, diffuse industrial releases accumulating over decades, not a discrete post-1986 event. CGL carriers who wrote occurrence-based policies for Port of Seattle operations during those 23 pre-1986 years may be obligated to fund the remedial investigation, feasibility work, and eventual cleanup actions now required under the Agreed Order.

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

Task 1 — Research and Analysis
Restorical searches for viable historical insurance policies, researches the site history, analyzes the contamination impacts, and underwrites potential coverage — including a proprietary trigger analysis. At the end of Task 1, we provide a clear yes or no on whether a successful cost recovery is possible, along with a strategy and recommendation specific to your situation, even if you are not the policyholder.
Task 2 — Coverage and Funding
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim, negotiate and secure insurance coverage. Restorical will manage the ongoing claim process, including accounting to ensure the insurance companies are funding your remediation in a timely manner.

Ready to learn more?

Contact Us

This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.