Industrial & Manufacturing cleanup site — Restorical Research
Hexion Sheboygan - Phenol
Sheboygan, Sheboygan County
Restorical Research
Preliminary Site-Specific Analysis

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

This property has operated as a chemical resin manufacturing facility since well before 1986, with successive corporate operators producing formaldehyde-based resins at this location over several decades. Groundwater sampling has revealed concentrations of hydroxybenzene and related aromatic compounds at levels 70 to 800 times the applicable NR 140 enforcement standards, and contamination has migrated off-site through the stormwater system, discharging to areas adjacent to neighboring railroad property. Surface water, sediment, and storm sewer sampling conducted as recently as early 2025 confirm ongoing off-site migration, and the site remains an active Wisconsin DNR Environmental Remediation Program case with substantial investigation and remediation work ahead. 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
LocationSheboygan, Sheboygan County
Historical UseIndustrial & Manufacturing
Est. Operating SincePredating 1986
DNR ProgramEnvironmental Remediation Program
Contamination & Investigation
Site Assessment Summary
ContaminantsHydroxybenzene and related aromatic compounds from resin manufacturing in groundwater, stormwater, surface water, and sediment
Regulatory ProgramWisconsin DNR — NR 700
BRRTS #02-60-593002

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.

Chemical resin manufacturing operations at this property began decades before 1986, with successive businesses producing formaldehyde-based resins at this location throughout a period when comprehensive general liability policies were routinely issued to cover their operations. The substantial investigation and remediation work still ahead — including reducing groundwater concentrations of hydroxybenzene and related compounds from levels hundreds of times above NR 140 enforcement standards, addressing confirmed off-site contamination migration through the stormwater system, and achieving Wisconsin DNR Environmental Remediation Program closure — represents future costs that the historical pre-1986 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.