Industrial & Manufacturing cleanup site — Restorical Research
CombiMatrix Corp Mukilteo
6500 Harbour Heights Pkwy Ste 301, Mukilteo, Snohomish County
Restorical Research
Preliminary Site-Specific Analysis

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

This property operated as the Honeywell Marine Systems Facility, an industrial and manufacturing operation whose releases of hydraulic oil and diesel fuel contaminated soil and groundwater at the Harbour Heights Technical Center. Independent remedial actions under the Voluntary Cleanup Program included multi-year groundwater monitoring and monitoring well sampling conducted from at least 1990 through 2001. Ecology issued a No Further Action determination upon the conclusion of those monitoring activities. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address6500 Harbour Heights Pkwy Ste 301, Mukilteo, Snohomish County
Historical UseIndustrial & Manufacturing
Est. Operating SincePre-1986
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsHydraulic oil, diesel fuel, metals, and volatile organic compounds (VOCs) detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #4400

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.

Ecology identified this site as a known or suspected contaminated site in November 1990, with contamination originating from industrial operations that predated 1986 — the period when occurrence-based Commercial General Liability policies were still issued without effective pollution exclusions. The combination of petroleum products, metals, and volatile organic compounds found in soil and groundwater here is characteristic of the releases those pre-1986 policies were written to cover. Historical carriers who issued CGL policies to Honeywell Marine Systems during its operational window may still be obligated to recover the remediation costs documented across more than a decade of cleanup activity.

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.