This property has a documented history as a public works and maintenance facility going back to 1951. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This property was constructed in 1951 by the United States Bureau of Reclamation as the headquarters and maintenance yard for the Quincy Columbia Basin Irrigation District, storing gasoline, diesel, and xylene used in irrigation operations and ditch maintenance. Underground storage tanks were installed in 1951, 1956, and 1974; a leaking leaded gasoline tank was discovered during removal in 1991, with contamination confirmed in soil and groundwater. Cleanup under the Standard Cleanup program has included removal of multiple USTs in 1991 and 1993, excavation and on-site treatment of contaminated soil, groundwater pump-and-treat operations, and five consecutive quarters of groundwater monitoring beginning in 1993. 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 contamination at this site originated from underground storage tanks installed and operated continuously from 1951 — more than three decades before occurrence-based Commercial General Liability policies gave way to claims-made forms with pollution exclusions in 1986. The documented remediation expenditures — tank removals, soil excavation and treatment, groundwater extraction and treatment, long-term monitoring — were incurred to address releases directly tied to those pre-1986 fueling operations. Historical carriers who issued CGL policies during that 35-year operational window may be obligated both to reimburse cleanup costs already spent and to fund the remediation work that remains.
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.


