Industrial & Manufacturing cleanup site — Restorical Research
Mirro Co Plt 2 (Former)
Manitowoc, Manitowoc County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1956. 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 used for industrial manufacturing since 1956, with operations continuing under successive operators through 2003. The manufacturing processes included non-stick coating applications using per- and polyfluoroalkyl substances (PFAS), along with oils, solvents, and coolants documented in a 1995 spill prevention plan. PFAS contamination has been confirmed in soil and groundwater, and off-site impacts include PFAS detections in private potable wells, a drinking water advisory, installation of off-site monitoring wells, and evaluation of point-of-entry treatment systems for affected residences. The site remains an active Wisconsin DNR Environmental Remediation Program case, with additional PFAS site investigation directed after the initial site investigation report was not approved in 2025. 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
LocationManitowoc, Manitowoc County
Historical UseIndustrial & Manufacturing
Est. Operating Since1956
DNR ProgramEnvironmental Remediation Program
Contamination & Investigation
Site Assessment Summary
ContaminantsPer- and polyfluoroalkyl substances (PFAS), including PFOA, in soil and groundwater
Regulatory ProgramWisconsin DNR — NR 700
BRRTS #02-36-588656

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 manufacturing operations at this property began in 1956 and continued through the mid-1980s and beyond, placing the PFAS-discharging activity squarely within the pre-1986 window. The ongoing PFAS investigation, potable well monitoring, residential treatment system installations, and remediation work ahead represent future costs that those historical 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.

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.