Industrial & Manufacturing cleanup site — Restorical Research
Evergreen Treatment Services Seattle Clinic
Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1914. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property has been in continuous industrial use since at least 1914–1915, when its building was originally constructed. Western Blower occupied the site from the 1910s through the 1960s, manufacturing large industrial fans and operating a paint spray booth, metal shop, metal plating areas, and a basement sump; Northwest EnviroService followed from 1979 to 1995 running a tank cleaning service and hazardous waste management facility; and Emerald Recycling operated a used-oil recycling facility on the property from 1997 to 2021. Remediation under the Voluntary Cleanup Program is now underway and includes source excavation with sump removal, in-situ chemical oxidation (ISCO) injections for soil and groundwater, monitored natural attenuation with five years of groundwater monitoring, and engineering controls — a vapor barrier and hard cap — at an estimated total cost of $870,000. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
AddressSeattle, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1914
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsIndustrial contaminants in soil and groundwater associated with metal plating, paint spray operations, tank cleaning, hazardous waste handling, and used-oil recycling
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #17256

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.

The contamination being remediated here is explicitly attributed to historical industrial operations — metal plating, spray painting, hazardous waste handling, tank cleaning, and used-oil recycling — carried out across multiple operator tenancies that began in 1914 and ran continuously through and beyond 1986. Occurrence-based CGL policies issued to Western Blower and Northwest EnviroService during their pre-1986 operating windows had no effective pollution exclusion and remain potentially enforceable today. With $870,000 in documented remediation costs and active cleanup underway, historical carriers from those policy years represent a plausible source of both cost recovery and ongoing funding obligations.

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.