Dry Cleaner cleanup site — Restorical Research
Madison Carnolia Cleaners
3412 W Mcgraw St, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a dry cleaning facility going back to 1950. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.

This property has operated as a dry cleaning facility since at least 1950, using tetrachloroethylene (PCE) as its primary solvent. Site investigations have confirmed PCE in groundwater at 110,000 µg/L and trichloroethylene (TCE) at 1,800 µg/L — both far exceeding MTCA Method A cleanup levels. Vapor intrusion has been confirmed, with indoor air exceedances requiring mitigation at both the dry cleaner property and the adjacent Key Bank building. The site is classified as Awaiting Cleanup under Ecology's Standard Cleanup program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Dry Cleaner
Address3412 W Mcgraw St, Seattle, King County
Historical UseDry Cleaner
Est. Operating Since1950
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsTetrachloroethylene (PCE) and trichloroethylene (TCE) detected in groundwater; vapor intrusion confirmed with indoor air exceedances
Media ImpactedSoil, Groundwater, Air
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #17327

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 using PCE began at this location more than three decades before 1986, when occurrence-based Commercial General Liability policies were still issued without effective pollution exclusions. The groundwater contamination documented here — PCE concentrations exceeding cleanup levels by orders of magnitude — is the product of decades of solvent use traceable to that pre-1986 operational window. Historical carriers whose CGL policies were in effect during the years of PCE use at this site may be obligated to fund the investigation, remediation, and vapor-intrusion mitigation costs the property now faces.

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.