Gas Station cleanup site — Restorical Research
3801-3811 6th Ave S Tacoma
Tacoma, Pierce County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as the ARCO 1173 service station, with four underground storage tanks in a common basin connected to dispenser islands under a single canopy, along with waste oil tanks and automotive repair bays. Cleanup under the Voluntary Cleanup Program has included removal of the USTs, waste oil tanks, floor hoists, septic tanks, and contaminated soil; groundwater monitoring has been ongoing since at least 2005 across multiple monitoring wells; and a soil vapor extraction system was pilot tested in 2015 and operated through mid-2018. Cleanup work is ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressTacoma, Pierce County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons, ethylene dibromide (EDB), and lead from leaded gasoline detected in soil, groundwater, and soil vapor
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #5386

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 contamination at this site — including ethylene dibromide (EDB) and lead at concentrations exceeding cleanup levels — is characteristic of leaded gasoline, a product phased out well before 1986. That chemical signature ties the release directly to historical service station operations conducted during the era when occurrence-based CGL policies carried no effective pollution exclusion in Washington. The documented remediation costs already incurred — tank removals, soil excavation, years of groundwater monitoring, vapor extraction — and those still ahead represent expenditures the historical carriers may be obligated both to recover and to fund going forward.

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

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 — Coverage and Funding
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim, negotiate and secure insurance coverage. Restorical will manage the ongoing claim process, including accounting to ensure the insurance companies are funding your remediation 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.