Industrial & Manufacturing cleanup site — Restorical Research
Port of Seattle Terminal 117
8700 Dallas Ave S, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1945. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as a roofing asphalt materials manufacturing facility from approximately the mid-1940s, with numerous above-ground, partially buried, and underground tanks storing fuel, asphalt, and waste oil throughout its industrial tenure. Cleanup activities have included dredging contaminated sediments, installation of a protective backfill cap, removal and decommissioning of multiple underground storage tanks ranging from 375 to 12,000 gallons in capacity, groundwater monitoring, and well decommissioning. Ongoing planning addresses future sediment and upland soil removal actions under a non-time-critical removal action framework. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address8700 Dallas Ave S, Seattle, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1945
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPCBs and petroleum hydrocarbons (fuel, asphalt, waste oil) detected in sediments, soil, and groundwater
Media ImpactedSoil, Groundwater, Surface Water, Air
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #1385

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.

Asphalt manufacturing and bulk fuel storage at this property began roughly four decades before 1986, and the presence of PCBs — banned in 1979 — confirms that contamination originated from operations well within the pre-1986 window when occurrence-based CGL policies carried no effective pollution exclusion. Site inspections by Metro and Ecology in 1984 and 1985 documented conditions tied directly to those decades of industrial use. The documented remediation expenditures — sediment dredging, a backfill cap, UST removals, long-term monitoring, and planned future soil and sediment removal — represent costs that historical carriers who issued policies during the manufacturing era 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

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.

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