This property has a documented history as a dry cleaning facility going back to 1920. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.
Valley Dry Cleaners operated at this Sunnyside property from the 1920s through at least the early 1990s, first using petroleum-based Stoddard Solvent and switching to tetrachloroethylene (PCE) around the mid-1950s when dry cleaning methods changed. Investigation-derived waste — including soil cuttings and purge water — has been managed and disposed of off-site, and two permanent groundwater monitoring wells have been installed to support ongoing multi-year monitoring. The former site buildings appear to have been demolished between 2015 and 2017, and no active cleanup work has commenced. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
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.
Contamination at this property traces to more than six decades of dry cleaning operations that began in the 1920s — operations during which both Stoddard Solvent and PCE were being released into soil and groundwater as a direct consequence of routine business activity. Ecology's investigation, begun as early as 1988, linked the contamination explicitly to accumulated historical releases, not any single incident. Occurrence-based CGL policies issued to the operators during the pre-1986 decades when these contaminants were being deposited carried no effective pollution exclusion and may represent an available source to fund the investigation and remediation costs this site still 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
Ready to learn more?
Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


