Auto Body cleanup site — Restorical Research
Cummins Northwest Renton
811 SW Grady Way, Renton, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a auto body / repair shop going back to 1980. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

The property at 811 SW Grady Way was constructed in 1975, with four underground storage tanks installed the following year. Cummins Northwest Diesel established vehicle and equipment maintenance operations at the site in 1980, performing diesel truck and engine repair through at least 2018. Cleanup activities have included removal of all four USTs (totaling 11,200 gallons), multiple phases of petroleum-contaminated soil excavation — 100 tons in 1989, 39 tons in 2001, and additional volumes in 2008 — relocation of a waste oil above-ground storage tank, installation of new wastewater management infrastructure, and ongoing site monitoring as recently as 2020. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Auto Body
Address811 SW Grady Way, Renton, King County
Historical UseAuto Body
Est. Operating Since1980
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from leaking USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #2645

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.

Petroleum contamination at this property is attributed to releases from site operations, with Cummins Northwest Diesel beginning diesel truck and engine repair activities in 1980 — six years before the 1986 threshold after which occurrence-based CGL policies routinely carried effective pollution exclusions. The USTs at the root of that contamination were installed in 1976, pushing the hardware origins even earlier. Documented remediation spanning three decades — tank removals, multiple soil excavation campaigns, infrastructure overhaul, and long-term monitoring — represents expenditures tied to pre-1986 operations that historical carriers may still be obligated 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 & 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.