Industrial & Manufacturing cleanup site — Restorical Research
Go Transit Downtown Transit Center
Oshkosh, Winnebago County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1809. 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 has been in continuous use since 1809, when it was first developed as a blacksmith shop with an associated shed and stable. A coal shed and railroad tracks were added by 1909, and between 1948 and 1958 all original structures were demolished and replaced, with historical fill material — including cinders, treated wood, peat, and coal — reused on-site in accordance with common practice of the era. Polycyclic aromatic hydrocarbons (PAHs) and metals detected in soil are consistent with that historical fill, and groundwater monitoring wells have confirmed exceedances of Wisconsin NR 140 preventive action limits for benzo(a)pyrene, benzo(b)fluoranthene, chrysene, lead, and arsenic, with the groundwater plume migrating south toward the Fox River. 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 Since1809
DNR ProgramEnvironmental Remediation Program
Contamination & Investigation
Site Assessment Summary
ContaminantsPolycyclic aromatic hydrocarbons (PAHs) including benzo(a)pyrene, benzo(b)fluoranthene, and chrysene, plus lead and arsenic in soil and groundwater
Regulatory ProgramWisconsin DNR — NR 700
BRRTS #02-71-595937

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.

The contamination at this property traces to industrial operations and fill practices that began in 1809 and continued through the 1948–1958 demolition and reconstruction period, during which cinders, treated wood, peat, and coal were reused as fill — all decades before 1986. The ongoing Wisconsin DNR Environmental Remediation Program investigation, engineered barrier design, soil excavation, and groundwater remediation required to address PAH and metals contamination and meet NR 140 standards represent future costs that carriers insuring the businesses that operated here before 1986 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.