This property has a documented history as a public works and maintenance facility going back to 1965. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.
The former Washington State Department of Transportation Materials Testing Facility operated on Littlerock Road SW from the mid-1960s through the mid-1970s, after which the structures were demolished between June 1977 and May 1978. Trichloroethylene (TCE) contamination attributed to past practices and improper disposal at the facility was discovered in 1993, triggering inclusion in the Palermo Wellfield Superfund Project. Remedial investigations and geoprobe sampling were conducted in 2001 as part of ongoing Superfund cleanup efforts, and the site remains in the awaiting-cleanup phase. 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 WSDOT materials testing operations that produced the TCE contamination here took place entirely before 1986, when occurrence-based Commercial General Liability policies were still the industry standard and carried no effective pollution exclusion in Washington. The Palermo Wellfield Superfund designation signals that the contamination has threatened public drinking water, a condition that drives remediation scope — and cost — well above a typical site investigation. The cleanup expenditures this property now faces — Superfund-level investigation, design, and remediation — may be recoverable from historical carriers whose policies were in force during the decades when the contaminating disposal practices occurred.
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.


