Industrial & Manufacturing cleanup site — Restorical Research
Analytical Resources Inc
4611 S 134th Pl, Tukwila, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1978. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property has been in industrial use since 1978, when SI Technologies began manufacturing weighing and scale systems at the site. From 1978 to late 1987, Starrow Enterprises also operated on the property, manufacturing artificial marble and maintaining a 7,000-gallon underground storage tank for resin storage. Ecology issued an Early Notice Letter in 1990, and site characterization under the Voluntary Cleanup Program confirmed metals, petroleum products, and non-halogenated solvents in groundwater. The site has received a No Further Action determination. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address4611 S 134th Pl, Tukwila, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1978
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsMetals (priority pollutants), petroleum products, and non-halogenated solvents detected in groundwater
Media ImpactedSoil, Groundwater, Surface Water
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #1247

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.

Industrial operations at this property — scale manufacturing and artificial-marble production with a 7,000-gallon UST — began in 1978, eight years before occurrence-based CGL policies ceased to be the industry standard. The groundwater contamination documented here, including metals and petroleum products, is attributable to operations conducted during that pre-1986 window. Historical carriers who issued CGL policies covering the 1978–1986 operational period may still be obligated to recover the investigation and remediation costs incurred to bring this site to closure.

Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.

Recovering Costs from an Older Cleanup

If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.

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 — Cost Recovery
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim and negotiate recovery of costs already incurred. Restorical's forensic accounting team re-establishes and documents past cleanup expenditures, managing the claim process to ensure the insurance companies fulfill their obligation 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.