This property has a documented history as a industrial and manufacturing facility going back to 1968. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.
This property served as a vehicle staging and refueling facility supporting gravel mining operations by Redmond Sand and Gravel, with aerial photography confirming diesel storage tanks on-site by 1974 and mining activity dating to at least 1968. Operations wound down in the early 1980s — tanks were removed by 1982 — and the property has been reported vacant since approximately 1985. Cleanup included excavation and off-site bioremediation of 1,200 cubic yards of contaminated soil yielding removal of 10,374 pounds of petroleum products, along with discharge of 128,000 gallons of contaminated excavation water to the Redmond/METRO sewer system for treatment. Multi-year groundwater monitoring ran from summer 1996 through winter 1997, and the site has since received No Further Action status. 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 diesel contamination here originated from vehicle fueling and above-ground storage tank operations that were active throughout the 1970s — more than a decade before 1986, when occurrence-based Commercial General Liability policies still lacked an effective pollution exclusion. Spills tied to gravel mining equipment and on-site fuel storage during that window are precisely the type of gradual release those pre-1986 policies were designed to cover. The documented remediation expenditures — soil excavation, water treatment, and multi-year groundwater monitoring — are directly traceable to pre-1986 operations, giving property stakeholders a credible basis to pursue historical carriers whose policies were in force when the contamination first occurred.
Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.
Recovering Costs from an Older Cleanup
If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.
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.


