Landfill cleanup site — Restorical Research
WONG GAMACHE
Union Gap, Yakima County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a landfill going back to 1950. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property served as an active construction debris landfill from the 1950s through the 1970s, accepting ash, scrap metal, wood, asphalt, concrete, and glass. Under the Voluntary Cleanup Program, remediation included excavation of an estimated 5,000 to 7,250 cubic yards of landfill material, removal of two 500-gallon underground storage tanks, quarterly groundwater monitoring sustained for over a year with biannual monitoring recommended for an additional two years, and placement of an environmental deed restriction on the property. The site has received a No Further Action determination. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Landfill
AddressUnion Gap, Yakima County
Historical UseLandfill
Est. Operating Since1950
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsTotal petroleum hydrocarbons (TPH), lead, arsenic, chromium, cadmium, zinc, and mercury detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #896

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.

Contamination at this property — petroleum hydrocarbons and a suite of heavy metals including lead, arsenic, chromium, cadmium, zinc, and mercury — traces to landfill operations and underground storage tanks that were in place decades before 1986. Occurrence-based CGL policies issued to the operators during that pre-1986 window carried no effective pollution exclusion under Washington law. The documented remediation expenditures — thousands of cubic yards of material excavation, tank removals, years of groundwater monitoring, and a permanent deed restriction — represent cleanup costs that historical carriers who covered those operations may still be obligated to reimburse.

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.