This property has a documented history as a gasoline service station predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This Winlock property operated as a service station and car dealership with six steel underground storage tanks, none of which were registered with Ecology — consistent with installation predating mid-1980s UST registration requirements. A 2006 contractor assessment determined the tanks had been out of service for more than 25 years, and all six USTs were removed that year. Site investigations have confirmed benzene and petroleum gasoline contamination in soil, while groundwater has not yet been fully evaluated — a January 2026 SHARP report noted that current groundwater data are still needed. Cleanup is underway under the Standard Cleanup program. 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.
The underground storage tanks at this former service station were in active use before the early 1980s, placing the facility's petroleum-dispensing operations squarely within the era when occurrence-based Commercial General Liability policies were the industry standard. Those pre-1986 policies carried no effective pollution exclusion in Washington and may still respond to the contamination liabilities this site has generated. With cleanup already underway and groundwater evaluation still pending, the remediation cost trail at this property — past and prospective — represents exactly the type of environmental expenditure that historical CGL carriers may be obligated to fund.
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
Stay up to date on environmental property cleanup laws and changes.
Report Email Updates
Request more information on this property
Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.