Auto Body cleanup site — Restorical Research
Alamo Rent A Car Inc
20636 International Blvd, Seatac, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a auto body / repair shop going back to 1985. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property, with a commercial building constructed in 1956, has been in use for various businesses since the mid-1970s, including rental car maintenance, fueling, and auto repair operations from at least 1985 through 2020. Petroleum contamination — gasoline, diesel, and lube oil-range hydrocarbons, as well as benzene — entered the soil from those operations. Cleanup under the Voluntary Cleanup Program has included the permanent removal of two 950-gallon underground storage tanks and over-excavation of contaminated soil in 2020, with quarterly groundwater monitoring conducted by Sound Transit from 2022 through 2023. Earlier investigations recommended additional measures including removal of a 10,000-gallon UST, thermal desorption, bioremediation, and air sparge/SVE, with estimated total remediation costs reaching $392,000. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Auto Body
Address20636 International Blvd, Seatac, King County
Historical UseAuto Body
Est. Operating Since1985
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline, diesel, and lube oil-range petroleum hydrocarbons (TPH) and benzene detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #5334

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.

Rental car fueling and auto repair operations at this property began at least a full year before 1986, when occurrence-based Commercial General Liability policies still carried no effective pollution exclusion in Washington. The petroleum hydrocarbon and benzene contamination documented in soil and groundwater here is the product of those pre-1986 operations — slow releases from underground storage tanks and maintenance activities conducted under policies that were written to cover exactly this kind of loss. Documented and projected remediation expenditures — tank removals, soil excavation, groundwater treatment, long-term monitoring — represent costs that historical carriers may be obligated both to reimburse and to fund as cleanup continues.

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.