Industrial & Manufacturing cleanup site — Restorical Research
Holland Partner Group
24th Ave NW & NW Market St NEC, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1905. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property at the northeast corner of 24th Avenue NW and NW Market Street in Seattle has been continuously developed since at least 1905, with buildings constructed between 1913 and 1939 housing commercial tenants including a drugstore, post office, and a paints, oils, and wallpaper shop. A 2021 Phase I Environmental Site Assessment confirmed that petroleum contamination — benzene, MTBE, and vinyl chloride exceeding groundwater cleanup levels — has migrated onto the property's southwestern corner from the adjacent Market Street Texaco/Spirit Service Station, with petroleum-diesel, petroleum-gasoline, and other non-halogenated organics also confirmed above cleanup levels. The site is enrolled in the Standard Cleanup program and remediation is underway. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address24th Ave NW & NW Market St NEC, Seattle, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1905
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsBenzene, MTBE, vinyl chloride, petroleum hydrocarbons (diesel and gasoline range), and other non-halogenated organics in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #16621

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.

Commercial operations at this property date back more than eight decades before 1986, documented by Sanborn Fire Insurance Maps from as early as 1893, King County assessment records, aerial photographs from 1936 onward, and city directories from 1920 onward. Occurrence-based CGL policies issued to the property's operators during that extensive pre-1986 window carried no effective pollution exclusion in Washington. The groundwater contamination now confirmed beneath this property — benzene, MTBE, and vinyl chloride all exceeding cleanup levels — has triggered remediation obligations under the Standard Cleanup program whose costs historical carriers 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.