Industrial & Manufacturing cleanup site — Restorical Research
Ross Island Sand & Gravel - N River St.
Multnomah County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1974. Historical insurance policies issued during operations at this property and through 1986 could help fund the ongoing and future cleanup under Oregon DEQ oversight.

This industrial property has supported sand and gravel operations in Portland for decades, with underground storage tanks on site since at least the mid-1970s — including a 10,000-gallon gasoline UST decommissioned in 1999 and four additional tanks decommissioned in 2021. Soil and groundwater sampling first detected diesel and heavy oils around the gasoline UST in 1998, and follow-up investigations in 2022–2023 found diesel concentrations in soil reaching 13,000 ppm — nearly three times Oregon DEQ's risk-based concentration of 4,600 ppm for construction worker direct contact. Oregon DEQ filed a Cost Recovery Agreement in January 2022, and the site remains under active agency oversight with an assigned project manager and no No Further Action determination issued. That history could support an insurance coverage claim against the carriers who issued policies more than 40 years ago — coverage that could help fund the cleanup ahead.

Former Use
Former Industrial & Manufacturing
LocationMultnomah County
Historical UseIndustrial & Manufacturing
Est. Operating Since1974
Project StatusAssigned
Contamination & Investigation
Site Assessment Summary
ContaminantsDiesel-range petroleum hydrocarbons and heavy oils in soil and groundwater
Regulatory ProgramOregon DEQ — Cleanup Program / VCP
DEQ ECSI #26-98-1133

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 Oregon — and those policies may provide coverage that remains enforceable today. 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 property traces to underground storage tank operations in place by the mid-1970s — well before 1986 — with tanks remaining active through decommissioning events in 1999 and 2021. With diesel concentrations in soil at nearly three times Oregon DEQ's risk-based screening level and groundwater impacts still under investigation, the remediation, monitoring, and compliance costs ahead under Oregon DEQ's Cost Recovery Agreement represent a substantial ongoing and future obligation that pre-1986 carriers may be required to fund.

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

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 viable insurance coverage exists to fund the cleanup, 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.