Heating Oil Tank cleanup site — Restorical Research
Uptown Lofts
318 1st Ave W, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a property with a heating oil tank going back to 1906. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This Seattle property has a multi-building history extending to at least 1906, with residential and commercial structures heated by oil-burning systems through the 1970s. Two Recognized Environmental Conditions are documented on the property: a 2,000-gallon underground storage tank used for heating oil at the former apartment building at 306 First Avenue West, and an oil burner heating system at the former dwelling at 318 First Avenue West. Both heating oil systems were removed without documentation, leaving subsurface impacts uncharacterized; the site is currently under Washington's Standard Cleanup program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
Address318 1st Ave W, Seattle, King County
Historical UseHeating Oil Tank
Est. Operating Since1906
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsHeating oil (petroleum hydrocarbons) from a 2,000-gallon underground storage tank and oil burner system; subsurface impacts not yet fully characterized
Media ImpactedSoil, Air
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #17059

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.

Heating oil operations at this property ran from at least 1906 through the 1970s — spanning the entire era when occurrence-based Commercial General Liability policies were the industry standard and carried no effective pollution exclusion. The undocumented removal of both the 2,000-gallon underground storage tank and the oil burner introduces the possibility of long-standing soil and groundwater contamination tied directly to those pre-1986 operations. Historical carriers who issued CGL policies to the property's owners or operators across that decades-long window may bear financial exposure for the remediation costs now accumulating under the Standard Cleanup program.

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.