Gas Station cleanup site — Restorical Research
Mayfield 76
2912 Hwy 12, Silver Creek, Lewis County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1959. Historical insurance policies issued during operations at this property and through 1986 could recover the cleanup costs already paid.

This property has operated as a gasoline and diesel retail facility and convenience store since 1959. Five single-walled steel underground storage tanks — including a 5,000-gallon leaded gasoline tank — were removed in November 1993 after groundwater contamination was discovered during the 1991–1993 period. Historical groundwater sampling revealed severe petroleum contamination, with total petroleum hydrocarbons in gasoline reaching 110,000 µg/L at one monitoring well. The site received a No Further Action determination from the Pollution Liability Insurance Agency in March 2021, with residual contamination at one monitoring well managed under institutional controls. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address2912 Hwy 12, Silver Creek, Lewis County
Historical UseGas Station
Est. Operating Since1959
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPH-gasoline, TPH-diesel), benzene, and non-halogenated solvents detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #6502

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 releases at this site originated from underground storage tanks installed and operated continuously from 1959 — more than two decades before occurrence-based Commercial General Liability policies stopped reliably covering pollution claims. The severity of the groundwater contamination (benzene, petroleum hydrocarbons in both gasoline and diesel fractions) and the extended remediation timeline from discovery in 1991 through the 2021 closure represent substantial cleanup expenditures tied directly to those pre-1986 fueling operations. Historical carriers who issued CGL policies during the 1959–1985 operational window may still be obligated to recover those costs.

Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.

Recovering Costs from an Older Cleanup

If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.

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 — Cost Recovery
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim and negotiate recovery of costs already incurred. Restorical's forensic accounting team re-establishes and documents past cleanup expenditures, managing the claim process to ensure the insurance companies fulfill their obligation 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.