Industrial & Manufacturing cleanup site — Restorical Research
N Main St Vacant 12 Parcels
Oshkosh, Winnebago County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1890. 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 downtown Oshkosh property spans twelve parcels with documented industrial and commercial use dating to 1890, including a cistern and cigar box factory, a paint company with oil storage (1903), electric sign manufacturing (1949), a sausage factory (1949–2005), and automotive and radiator repair shops operating from the late 1940s and 1950s. Historic urban fill material of unknown origins is present throughout the site, and polycyclic aromatic hydrocarbons (PAHs), arsenic, and lead have been confirmed in shallow soil and groundwater across fourteen monitoring wells — with multiple wells exceeding Wisconsin DNR NR 140 Enforcement Standards for benzo(a)pyrene, benzo(b)fluoranthene, chrysene, arsenic, and lead. A Site Investigation Report was approved in December 2024, and remedial excavation of approximately 4,467 cubic yards of contaminated soil is planned under Wisconsin DNR Environmental Remediation Program oversight. 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
LocationOshkosh, Winnebago County
Historical UseIndustrial & Manufacturing
Est. Operating Since1890
DNR ProgramEnvironmental Remediation Program
Contamination & Investigation
Site Assessment Summary
ContaminantsPolycyclic aromatic hydrocarbons (benzo(a)pyrene, benzo(b)fluoranthene, chrysene), arsenic, and lead in soil and groundwater
Regulatory ProgramWisconsin DNR — NR 700
BRRTS #02-71-595611

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 began as early as 1890 and continued through multiple decades before 1986, including paint manufacturing with oil storage, electric sign production, meat processing, and automotive repair — activities during which industrial processes and urban fill introduced polycyclic aromatic hydrocarbons, arsenic, and lead into soil and groundwater across the site. The planned excavation of approximately 4,467 cubic yards of contaminated soil, continued groundwater investigation across fourteen monitoring wells, and long-term compliance monitoring required under Wisconsin DNR Environmental Remediation Program oversight represent substantial future costs that the pre-1986 carriers for 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.