Heating Oil Tank cleanup site — Restorical Research
Park Ridge Care USTs
1250 NE 145th St, Shoreline, King County
Restorical Research
Preliminary Site-Specific Analysis

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

The Park Ridge Care Facility operated with at least two underground storage tanks — a former gasoline UST and a former home heating oil UST — on a property that also encompasses a former dry cleaning area. The USTs were closed under a formal closure and subsurface assessment in 2002, at which time interceptor trenches were installed; since then, the site has undergone multi-year enhanced bioremediation using repeated injections of Oxygen Release Compound and calcium peroxide/persulfate into those trenches. Groundwater monitoring and reporting to Ecology have continued since closure, and the site remains in active cleanup 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 Heating Oil Tank
Address1250 NE 145th St, Shoreline, King County
Historical UseHeating Oil Tank
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from former gasoline and heating oil USTs, and lead (Pb) detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #1955

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.

Lead contamination documented in both soil and groundwater at this property is a definitive indicator of operations during the leaded gasoline era — confirming that the USTs here were active well before 1986, the threshold year for occurrence-based CGL policies that carried no effective pollution exclusion. The remediation expenditures incurred to date — formal UST closure, trench installation, multiple rounds of in-situ bioremediation, and sustained groundwater monitoring — are directly traceable to releases from those pre-1986 operations. Historical carriers who issued CGL policies to the care facility or earlier operators during that window may be obligated to fund both the costs already incurred and the cleanup work still underway.

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.

Ready to learn more?

Contact Us

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