This property has a documented history as a public works and maintenance facility going back to 1959. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
The Former Tenino Service Center served as Puget Sound Power & Light's administrative headquarters and utility fleet facility from 1959 to 1995, with operations encompassing a loading dock, warehouse, offices, covered truck parking, and fueling facilities. Underground storage tanks removed in 1991 were central to the contamination record: that year's excavation removed 2,300 cubic yards of petroleum-impacted soil. A second remedial excavation in 2009 removed an additional 788 tons of contaminated soil, decommissioned two monitoring wells, and recovered petroleum sheen from groundwater, with continued groundwater monitoring recommended thereafter. Cleanup work is ongoing. 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.
Petroleum contamination at this property originated from fueling operations and underground storage tanks installed when the service center opened in 1959 — more than two decades before occurrence-based Commercial General Liability policies began incorporating effective pollution exclusions in 1986. The documented remediation trail — two separate excavation campaigns totaling over 2,300 cubic yards and 788 tons of impacted soil, groundwater sheen recovery, and long-term monitoring — represents substantial expenditures tied directly to those pre-1986 operations. Historical carriers who issued CGL policies to Puget Sound Power & Light during that operational window may be obligated both to recover past remediation costs and to fund the ongoing monitoring requirements.
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.


