Farm/Agriculture cleanup site — Restorical Research
Alexander Farms
179101 W King Tull Rd, Prosser, Benton County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a farm and agricultural operation going back to 1978. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

Alexander Farms — also formerly operating as Yakima Chief Ranches — is an agricultural property in Benton County where historical use of Dinoseb, a herbicide banned in 1986, contaminated soil and groundwater. Cleanup under a Consent Decree ran from 1998 through 2009, encompassing interim soil excavation, management and disposal of waste soils and pesticides, installation and long-term monitoring of at least 12 groundwater wells, and provision of alternative water sources to address the contamination. Remediation costs incurred by Ecology were assigned to property owner Dan Alexander under the Consent Decree, and the site has since reached No Further Action status. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Farm/Agriculture
Address179101 W King Tull Rd, Prosser, Benton County
Historical UseFarm/Agriculture
Est. Operating Since1978
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsDinoseb (banned herbicide) detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #478

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.

The contamination at this property stems from agricultural application of Dinoseb during the years before its 1986 federal ban — precisely the period when occurrence-based Commercial General Liability policies were standard and carried no effective pollution exclusion. Dan Alexander has owned the site since 1978, meaning carriers who issued CGL policies during that pre-ban operational window were on risk when the herbicide releases that later drove eleven years of Consent Decree remediation first occurred. The documented cleanup costs — excavation, pesticide waste disposal, installation of twelve groundwater monitoring wells, and alternative water supply — represent expenditures those historical insurers may be obligated to recover.

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.