This property has a documented history as a farm and agricultural operation going back to 1961. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
An agricultural distribution facility operated at this Sunnyside property from at least 1961 through at least 1986, using above-ground storage tanks to store and distribute farm chemicals. Valley Agricultural Inc. constructed a washdown lagoon in the early 1980s to collect runoff from farm chemical applicator vehicles, contributing to groundwater contamination that included nitrates, nitrites, ammonia, phosphate, sulfate, and the herbicide dinoseb. Cleanup activities included removal of the ASTs, a field pilot study using in-situ bioremediation with injection of over 2,000 pounds of sodium acetate and 5,000 gallons of water, and subsurface air stripping and sparging for ammonia removal, with multi-year investigations and monitoring conducted from 2003 to 2005. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
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 site — nitrates, ammonia, and the herbicide dinoseb — traces directly to agricultural chemical distribution and vehicle washdown operations that were active from the early 1960s through 1986, the precise window when occurrence-based Commercial General Liability policies were standard and carried no effective pollution exclusion. Costs incurred to investigate, pilot-test, and remediate a groundwater plume from decades of fertilizer leaching and pesticide runoff are exactly the kind of liability those historical policies were written to cover. Historical carriers whose CGL policies were in force during this facility's operational years may still be obligated to fund the ongoing remediation work.
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
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Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


