Dry Cleaner cleanup site — Restorical Research
Overlake Cleaners 79th
Redmond, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a dry cleaning facility predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as Overlake Dry Cleaners in Redmond, with on-site dry cleaning operations using the solvent perchloroethylene (PCE). Site investigation work beginning in 1997 identified PCE contamination in shallow subsurface soil near the dry cleaning machine and in local groundwater; ongoing groundwater monitoring has confirmed PCE concentrations remaining above cleanup standards. Investigation activities have included monitoring well installation, removal of 260 gallons of groundwater during well development, and off-site disposal of contaminated soil cuttings. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Dry Cleaner
AddressRedmond, King County
Historical UseDry Cleaner
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPerchloroethylene (PCE) detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #954

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.

Dry cleaning operations at this site used perchloroethylene — a chlorinated solvent whose slow migration through soil and groundwater is precisely the kind of gradual, ongoing release that pre-1986 occurrence-based CGL policies were written to cover. With cleanup started and monitoring confirming PCE levels still above standards, the remediation costs ahead — continued monitoring, potential active treatment, regulatory compliance — are likely to grow. Historical carriers who issued CGL policies during the pre-1986 operational window may bear an obligation both to reimburse investigation costs already incurred and to fund the cleanup work still to come.

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.