This property has a documented history as a public works and maintenance facility predating 1986. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.
This property served as the US Army Corps of Engineers Motor Pool and Logistics Service Center within the Walla Walla District complex, with three underground storage tanks dispensing diesel and unleaded gasoline in the motor fuel refueling area alongside service bays, storage buildings, and an equipment yard. Cleanup under the Voluntary Cleanup Program included excavation and removal of the USTs and approximately 2,200 cubic yards of contaminated soil — 200 cubic yards sent for thermal desorption treatment and 850 cubic yards segregated and stockpiled on-site — followed by groundwater monitoring from 1992 through 1998. A restrictive covenant was recorded in 1999, with periodic reviews completed in 2009, 2015, and 2023, and the site has reached 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.
Lead contamination in the soil and groundwater here is directly associated with leaded gasoline dispensed from the motor pool's underground storage tanks — a fuel product phased out by the mid-1980s, confirming that the contaminating operations were well underway before 1986. Occurrence-based CGL policies in effect during those pre-1986 fueling operations carried no effective pollution exclusion under Washington law. The documented remediation expenditures — tank removals, large-scale soil excavation, thermal treatment, years of groundwater monitoring, and institutional controls still subject to periodic review — represent costs that historical carriers who covered the facility during that window may be obligated to reimburse.
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.


