Farm/Agriculture cleanup site — Restorical Research
Simplot Soilbuilders Sunnyside
300 S 1st St, Sunnyside, Yakima County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a farm and agricultural operation predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This Sunnyside property operated historically as an agricultural product distribution facility, where chemical containers were stored and rinsed over unpaved surfaces — a practice site documents describe as standard for early pesticide formulators. Contamination from those operations, including herbicides, nitrates, and ammonia, has affected soil and groundwater at the site. Cleanup under the Voluntary Cleanup Program has included excavation and removal of 155 cubic yards of contaminated soil in 2012, groundwater monitoring conducted from 2011 through 2021, and evaluation of phytoremediation; the site is currently in a multi-year remedial investigation phase with further remediation ahead. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Farm/Agriculture
Address300 S 1st St, Sunnyside, Yakima County
Historical UseFarm/Agriculture
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsHerbicides, nitrates, and ammonia detected in soil and groundwater from agricultural chemical container storage and rinsing
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #2558

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 herbicide, nitrate, and ammonia contamination at this property originates from agricultural chemical storage and rinsing practices that site documents characterize as standard for early pesticide formulators — practices that predate the regulatory tightening of the mid-1980s. Occurrence-based Commercial General Liability policies issued to operators during that pre-1986 window carried no effective pollution exclusion under Washington law. The documented remediation costs here — soil excavation, years of groundwater monitoring, phytoremediation evaluation, and an ongoing remedial investigation — represent expenditures that historical carriers may be obligated both to recover and to fund as the site moves toward active remediation.

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.