Industrial & Manufacturing cleanup site — Restorical Research
Superior Warehouse And Marina
Superior, Douglas County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1892. Historical insurance policies issued during those prior operations and through 1986 could help fund the multi-phase investigation and remediation work ahead under Wisconsin DNR oversight.

This property encompasses three parcels in Superior's industrial waterfront corridor, with documented operations dating to 1892 — including flour and sugar warehousing, an auto repair shop handling solvents and petroleum products (1949–1967), and a boat repair facility (1914–1949). A 2021 Phase II Environmental Site Assessment confirmed widespread contamination across all nine sampling locations, with polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and heavy metals — including arsenic, lead, mercury, and benzo(a)pyrene — exceeding Residual Contaminant Levels in soil, and lead exceeding Wisconsin Administrative Code Enforcement Standards in groundwater at two monitoring wells. The site borders Hughitt Slip and Howards Bay within the St. Louis River–Lake Superior system, and contaminated sediment in the adjacent waterway has been identified as a recognized environmental condition tied to historical industrial activity. 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.

Former Use
Former Industrial & Manufacturing
LocationSuperior, Douglas County
Historical UseIndustrial & Manufacturing
Est. Operating Since1892
DNR ProgramEnvironmental Remediation Program
Contamination & Investigation
Site Assessment Summary
ContaminantsPolycyclic aromatic hydrocarbons (PAHs including benzo(a)pyrene, benzo(b)fluoranthene, chrysene, and naphthalene), volatile organic compounds (VOCs), and heavy metals (arsenic, barium, lead, selenium, mercury) in soil and groundwater
Regulatory ProgramWisconsin DNR — NR 700
BRRTS #02-16-592571

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 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.

Industrial and commercial operations at this property — including warehousing, auto repair, and boat repair activities documented as early as 1892 — spanned nearly a century before 1986, generating the solvent, petroleum, and heavy-metal contamination now confirmed across all three parcels. The investigation, groundwater remediation, soil cleanup, and potential sediment work ahead under Wisconsin DNR Environmental Remediation Program oversight represent substantial future cost obligations that the historical pre-1986 carriers insuring the businesses that operated here 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.

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

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 viable insurance coverage exists to fund the cleanup, 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.