Heating Oil Tank cleanup site — Restorical Research
Vacant Lots 4511 NW 18th Ave
Camas, Clark 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.

This property — now vacant lots — formerly supported a farmhouse with at least two petroleum underground storage tanks used for on-site fuel storage, along with an additional 250-gallon fuel tank. Environmental assessments have confirmed gasoline-, diesel-, and oil-range petroleum hydrocarbons in soil, with lead also detected alongside the petroleum contamination. Recommended remediation includes UST excavation and removal, hot-spot soil excavation and disposal, and septic system removal, with a total estimated cost of $33,500; no active cleanup has yet commenced. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
AddressCamas, Clark County
Historical UseHeating Oil Tank
Est. Operating SincePre-1986
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline, diesel, and oil-range petroleum hydrocarbons, and lead, detected in soil
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #15319

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 co-occurrence of petroleum hydrocarbons and lead in soil here is a recognized indicator of historical leaded gasoline use — a fuel type phased out before 1986, placing the contamination's origin squarely within the era of occurrence-based CGL policies that carried no effective pollution exclusion. Carriers who issued those policies to prior owners or operators of the farmhouse property during the pre-1986 window may remain obligated to fund the upcoming cleanup, including UST removal, impacted soil disposal, and septic system removal now estimated at $33,500.

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.