This property has a documented history as a gasoline service station predating 1986. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.
The 115 Mini Mart has operated as an active service station at Exit 115 on I-90 in Kittitas, storing diesel fuel and leaded and unleaded gasoline in three 10,000-gallon above-ground tanks. A release of gasoline to soil and groundwater was discovered in December 1990 from inventory records, prompting soil excavation and disposal in 1991 and extensive site characterization — test pit excavations and monitoring well installations — in 1991, 1995, 2018, and 2020. Groundwater monitoring was conducted during 1993–1995 and again in 2020, with natural attenuation serving as the primary remedial approach over the intervening decades. 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 explicit presence of leaded gasoline in the site's storage tanks places active fuel dispensing operations here before leaded gasoline was phased out in the mid-1980s, confirming the contamination origin falls within the era of occurrence-based Commercial General Liability policies that carried no effective pollution exclusion. The December 1990 discovery traced the release to ongoing inventory losses — a slow, continuous discharge of the kind those pre-1986 policies were written to cover. Thirty years of documented site characterization, soil remediation, and groundwater monitoring represent costs for which historical CGL carriers issued during those earlier operational years may remain obligated, with future remediation expenditures still potentially on the table.
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.


