This property hosted manufactured gas plant operations from the late 1800s through the mid-1900s, producing gas from coal and generating coal tar — a contaminant that has been the subject of extensive recovery efforts since at least 2001. Sediment contamination has migrated into Chequamegon Bay on Lake Superior, prompting a federal consent decree with $42 million in financial assurance dedicated to sediment remediation. Residual groundwater contamination exceeds Wisconsin DNR NR 140 enforcement standards across more than 20 parcels, including municipal properties and public rights-of-way, and the site carries a Superfund National Priorities List designation reflecting the severity and geographic extent of the contamination. 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.
Manufactured gas production at this property began in the late 1800s and continued well into the mid-1900s, placing the origin of the coal tar contamination many decades before 1986. The scope of remaining remediation — spanning contaminated sediment cleanup, groundwater restoration to state enforcement standards, and long-term environmental monitoring under both Wisconsin DNR and federal oversight — represents substantial future costs that pre-1986 CGL 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.