This property has operated as a gas station since before 1980, when a 250-gallon underground storage tank storing leaded gasoline was decommissioned — an event documented in a prior Wisconsin DNR LUST case at the same address. Groundwater sampling in 2025 confirmed benzene concentrations at monitoring well MW-1 of 195–277 µg/L, far exceeding the NR 140 enforcement standard of 5 µg/L, with additional exceedances at two other monitoring wells. A pump-and-treat system is actively operating, and Wisconsin DNR has recommended installation of four additional monitoring wells to delineate the extent of the groundwater plume. That history could support an insurance coverage claim against the carriers who issued policies more than 40 years ago — coverage that could help fund the cleanup ahead.
Pre-1986 Commercial General Liability (CGL) policies were occurrence-based and did not contain an effective pollution exclusion in Wisconsin — and those policies may provide coverage that remains enforceable today. 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.
Fueling operations at this property were underway since at least the late 1970s, with a 250-gallon underground storage tank storing leaded gasoline decommissioned around 1980 as documented in a prior Wisconsin DNR LUST case — placing decades of petroleum handling by the businesses that operated here squarely before 1986. The ongoing pump-and-treat system, the four additional monitoring wells recommended by Wisconsin DNR to delineate the groundwater plume, and any further remediation required to bring benzene concentrations into compliance with NR 140 enforcement standards represent future costs that historical pre-1986 carriers may be obligated to fund.
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.
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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.