Dry Cleaner cleanup site — Restorical Research
Lou Herron & Co Cleaners
1900-1906 E Aloha St, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a dry cleaning facility going back to 1939. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.

This property at 1900–1906 East Aloha Street housed at least two successive dry cleaning tenants — Herron Lou & Co. Cleaners and Aaron's Dry Cleaners Plant — operating continuously from approximately 1939 through 1975. Tetrachloroethene (PCE) and Trichloroethene (TCE), both hallmark dry cleaning solvents, have been identified as site contaminants. Multi-year vapor intrusion assessment and monitoring conducted in 2023 and 2024 included sub-slab soil gas, indoor air, and crawlspace sampling; further indoor air sampling and a vapor intrusion assessment at an adjacent residence are recommended before active cleanup can begin. The site remains in the Awaiting Cleanup stage under the Voluntary 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
Address1900-1906 E Aloha St, Seattle, King County
Historical UseDry Cleaner
Est. Operating Since1939
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsTetrachloroethene (PCE) and Trichloroethene (TCE) detected via sub-slab soil gas, indoor air, and crawlspace vapor intrusion sampling
Media ImpactedSoil, Groundwater, Air
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #17079

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 1939 and ran through 1975 — more than a decade before occurrence-based Commercial General Liability policies ceased to provide meaningful pollution coverage. The PCE and TCE contamination documented here, now surfacing as vapor intrusion into indoor air and sub-slab soil gas, is precisely the kind of slow, diffuse release that pre-1986 CGL policies were written to cover. The remediation costs this property has yet to incur — active cleanup, extended vapor intrusion controls, and monitoring of the neighboring residence — could plausibly be funded by historical carriers whose policies were in force when those solvents first entered the subsurface.

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.