Farm/Agriculture cleanup site — Restorical Research
Inland Air Service
East Wenatchee, Douglas County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a farm and agricultural operation going back to 1947. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property hosted agricultural aerial spraying operations from 1947 through 1987 — first as Inland Air Service and then as WenAirCo — with pesticide and herbicide contamination resulting from incidental spills during tank loading and rinsing operations at the site. Remediation efforts under the Voluntary Cleanup Program began with a multi-year nitrogen fertilizer soil treatment from 1990 to 1998, which proved unsuccessful, and concluded with the excavation and off-site disposal of approximately 150 cubic yards of contaminated soil in February 2001. The site has since 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 Farm/Agriculture
AddressEast Wenatchee, Douglas County
Historical UseFarm/Agriculture
Est. Operating Since1947
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPesticides and herbicides detected in soil from tank loading and rinsing operations
Media ImpactedSoil, Groundwater, Surface Water
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #4060

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.

Agricultural spraying operations at this property spanned four decades before 1986, with pesticide and herbicide releases accumulating throughout that window — the type of slow, recurring contamination that occurrence-based Commercial General Liability policies issued before 1986 were designed to address. Carriers who wrote policies for Inland Air Service or WenAirCo during those operational years had no effective pollution exclusion under Washington law and may remain obligated to fund the documented remediation expenditures — years of soil treatment, excavation, and off-site disposal — tied directly to those pre-1986 releases.

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.

Ready to learn more?

Contact Us

This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.