Gas Station cleanup site — Restorical Research
UNOCAL 7283
5429 100th Street SW, Lakewood, Pierce County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1973. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property operated as a gasoline service station beginning in 1973, first under the U.S.A. brand, then Chevron through 1988, and subsequently Unocal. Three 12,000-gallon underground storage tanks were removed from the site in July 1990. A Class A Environmental Site Assessment completed in 1991 confirmed petroleum contamination in groundwater, with TPH, ethylbenzene, and xylenes detected in monitoring wells and oily sheen with gasoline-like odor observed in groundwater samples. The site entered the Voluntary Cleanup Program and has since received a No Further Action determination. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address5429 100th Street SW, Lakewood, Pierce County
Historical UseGas Station
Est. Operating Since1973
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPH), benzene, ethylbenzene, and xylenes detected in groundwater
Media ImpactedSoil, Groundwater, Air
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #10748

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.

Petroleum releases at this property originated from underground storage tanks installed and operated beginning in 1973 — thirteen years before occurrence-based Commercial General Liability policies stopped reliably covering pollution claims. The operators who ran this station through the 1970s and 1980s held CGL policies with no effective pollution exclusion, and those policies remain enforceable in Washington. The documented remediation costs — UST removal, site assessment, groundwater monitoring — represent expenditures that the historical carriers who insured this station during its pre-1986 operations may still be obligated to recover.

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.