Gas Station cleanup site — Restorical Research
Semiahmoo Marina
9540 Semiahmoo Pkwy, Blaine, Whatcom 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.

The Semiahmoo Marina property stored and dispensed petroleum fuels — both gasoline and diesel — through underground storage tanks installed well before 1986. Contamination including total petroleum hydrocarbons (TPH), polynuclear aromatics (PNA), and free product was identified at the site in 1989. Cleanup began in 1991 with a diesel UST upgrade and removal of petroleum-contaminated soil, followed in 1993 by excavation of five areas of concern and removal of an abandoned gasoline UST — more than 7,000 cubic yards of contaminated soil and overburden removed in total. Remediation continues under the Voluntary Cleanup Program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address9540 Semiahmoo Pkwy, Blaine, Whatcom County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsTotal petroleum hydrocarbons (TPH), polynuclear aromatics (PNA), and free product detected in soil
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #8424

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 marina originated from underground storage tanks that were installed and operating decades before 1986, when occurrence-based Commercial General Liability policies carried no effective pollution exclusion. The scale of documented remediation — over 7,000 cubic yards of soil excavation, UST removals, and ongoing cleanup management spanning more than three decades — represents substantial expenditures tied directly to those pre-1986 operations. Historical carriers who issued CGL policies during the period these tanks were in service may be obligated to reimburse past cleanup costs and to fund the remediation work that remains.

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.