Dry Cleaner cleanup site — Restorical Research
Sato Corporation
14820 NE 24th St, Redmond, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a dry cleaning facility going back to 1977. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property was developed in 1977 and hosted dry cleaning operations — under the names Hollywood Cleaners and Holiday Cleaners — in a single tenant space from that year until approximately 2004. Contamination from those operations includes tetrachloroethylene (PCE), trichloroethylene (TCE), cis-1,2-dichloroethylene, and vinyl chloride in soil and groundwater. Remediation under the Voluntary Cleanup Program included a soil vapor extraction system that operated from November 2004 through March 2009, accumulating over 31,000 hours of run time to reduce vadose zone contamination. Long-term monitored natural attenuation and groundwater monitoring have continued since, with annual reporting ongoing under a five-year post-remediation plan. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Dry Cleaner
Address14820 NE 24th St, Redmond, King County
Historical UseDry Cleaner
Est. Operating Since1977
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsTetrachloroethylene (PCE), trichloroethylene (TCE), cis-1,2-dichloroethylene, and vinyl chloride detected in soil, groundwater, and soil vapor
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #4186

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 property began in 1977, nearly a decade before 1986 — the year pollution exclusions became standard in Commercial General Liability policies — and continued releasing chlorinated solvents throughout that pre-1986 window. The contaminants documented here, PCE and its breakdown products TCE, cis-1,2-DCE, and vinyl chloride, are precisely the type of gradual, historical discharge that occurrence-based CGL policies were written to address. Carriers who issued policies to the dry cleaning operator during that period may be obligated both to recover the documented remediation costs — years of continuous vapor extraction plus ongoing monitoring — and to fund cleanup work that remains incomplete.

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.