Public Works cleanup site — Restorical Research
WI Dot I94 & Cth K (North Side) - Creosote
Caledonia, Racine County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a public works and maintenance facility going back to 1950. 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 served as a bridge abutment site for the I-94 corridor, with creosote-treated timber piles installed during original highway construction in the 1950s and 1960s. A 500-gallon underground storage tank of pre-1986 vintage was also discovered near the north abutment during 2018 reconstruction work. Creosote-contaminated soil has been confirmed at the site, and groundwater sampling across seven monitoring wells installed in 2024 has revealed exceedances of Wisconsin NR 140 preventive action limits, including benzene at 0.90 µg/L and naphthalene at 26 µg/L, with toluene detected in five of the seven wells. The site is an active Wisconsin DNR Environmental Remediation Program case with quarterly groundwater monitoring ongoing. 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 Public Works
LocationCaledonia, Racine County
Historical UsePublic Works
Est. Operating Since1950
DNR ProgramEnvironmental Remediation Program
Contamination & Investigation
Site Assessment Summary
ContaminantsCreosote compounds including benzene, naphthalene, toluene, and ethylbenzene in soil and groundwater
Regulatory ProgramWisconsin DNR — NR 700
BRRTS #02-52-592427

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.

Creosote-treated timber piles were installed at this property during highway construction in the 1950s and 1960s, and a pre-1986 underground storage tank was operated near the north abutment, placing all contaminating activities at the site well before 1986. The ongoing quarterly groundwater monitoring across seven wells, continued investigation of confirmed benzene, naphthalene, and toluene exceedances of NR 140 preventive action limits, and future remediation required under the Wisconsin DNR Environmental Remediation Program represent substantial prospective costs that 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.