This property has a documented history as a gasoline service station going back to 1930. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
Two gasoline service stations operated on this Bothell property from the 1930s through the 1970s, with underground storage tanks that were removed during that period and additional tanks discovered and removed in 1998. Cleanup under the Voluntary Cleanup Program has included the removal of 385 tons of petroleum-affected soils, excavation backfilling, placement of a visqueen barrier, and the recording of a restrictive covenant in 2002, followed by multi-year groundwater monitoring. Additional soil remediation via excavation is planned following demolition of the existing building. 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 petroleum and lead contamination at this property originates from gasoline service station operations that began in the 1930s — a generation before 1986, when occurrence-based CGL policies still lacked an effective pollution exclusion. The presence of lead reflects the leaded-gasoline era during which these stations were active, placing the contamination origin squarely within the pre-1986 policy window. The documented remediation trail — two rounds of UST removal, hundreds of tons of excavated soil, a recorded restrictive covenant, ongoing monitoring, and a further excavation phase still ahead — represents the kind of multi-decade cleanup liability that historical 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
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Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


