Public Works cleanup site — Restorical Research
PSE Kent Operating Base
Kent, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a public works and maintenance facility going back to 1979. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property was constructed in 1979 as an operating base for Puget Sound Energy's natural gas operation and maintenance crews, with an on-site refueling station consisting of two 4,000-gallon steel underground storage tanks and two fuel dispensing pumps serving the utility's service vehicles. The tanks were taken out of service in 1996 and removed in 1997, at which point petroleum contamination was identified. Cleanup under Ecology's standard program included excavation and off-site disposal of 220 cubic yards of contaminated soil, removal of approximately 30,000 gallons of contaminated water from the excavation pit, and backfilling with clean soil capped by asphalt to limit rainwater infiltration. The site received a No Further Action determination in 2012, closing a 15-year regulatory timeline. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Public Works
AddressKent, King County
Historical UsePublic Works
Est. Operating Since1979
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from leaking USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #7857

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 petroleum contamination at this property originated from underground storage tanks installed and operated continuously from 1979 — seven years before occurrence-based Commercial General Liability policies gave way to claims-made forms with absolute pollution exclusions. CGL policies issued to the facility's operators during that pre-1986 window carried no effective pollution exclusion under Washington law and remain enforceable today. Fifteen years of documented remediation expenditures — tank removal, soil excavation, groundwater recovery, and site restoration — represent costs that the historical carriers who covered this facility during its early operational years may still 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

Task 1 — Research and Analysis
Restorical searches for viable historical insurance policies, researches the site history, analyzes the contamination impacts, and underwrites potential coverage — including a proprietary trigger analysis. At the end of Task 1, we provide a clear yes or no on whether a successful cost recovery is possible, along with a strategy and recommendation specific to your situation, even if you are not the policyholder.
Task 2 — Cost Recovery
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim and negotiate recovery of costs already incurred. Restorical's forensic accounting team re-establishes and documents past cleanup expenditures, managing the claim process to ensure the insurance companies fulfill their obligation in a timely manner.

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This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.