Industrial & Manufacturing cleanup site — Restorical Research
South Park Marina
8604 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 1936. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

The A&B Barrel Company formerly operated at the South Park Marina property, using a corner of the site abutting Terminal 117 as a disposal pond for oils, grease, and sodium hydroxide — practices documented in aerial photographs dating to 1936. Extensive cleanup activities at Terminal 117 have included multi-phase upland and sediment excavation, removal of tar-like material, installation of a temporary sheet pile wall, deployment of containment and absorbent booms, and construction of an activated carbon geocomposite mat for groundwater treatment and capping. Riprap placement, stormwater treatment, and boat wash water treatment systems have also been installed, and long-term monitoring is planned to ensure continued protection. Cleanup work at the site is ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address8604 Dallas Ave S, Seattle, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1936
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPH), PCBs, metals, DDT, and Aldrin/Dieldrin detected in soil and sediment
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #2858

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.

Contamination at this property — petroleum hydrocarbons, PCBs, metals, and pesticides including DDT and Aldrin/Dieldrin — originated from industrial disposal operations that aerial records place as far back as 1936, decades before 1986. PCBs, DDT, and Aldrin/Dieldrin were all banned or restricted between the early 1970s and mid-1980s, and their presence in soils from the former disposal pond ties the contamination conclusively to the pre-1986 operational window when occurrence-based CGL policies carried no effective pollution exclusion. The documented remediation costs at Terminal 117 — sediment and soil excavation, engineered caps, groundwater treatment, and ongoing monitoring — represent expenditures that historical carriers whose policies covered this industrial operation may be obligated both to reimburse and to fund as remediation continues.

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.