Industrial & Manufacturing cleanup site — Restorical Research
Dalton Inc Spill
West Allis, Milwaukee County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1927. 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 foundry and manufacturing facility from at least 1927, with nearly six decades of pre-1986 industrial operations that included casting, machining, and the storage of trichloroethylene (TCE) as an industrial degreaser in on-site underground storage tanks. Site investigation has confirmed soil and groundwater contamination by chlorinated solvents (TCE and tetrachloroethylene), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), RCRA metals, and volatile organic compounds across multiple parcels, with groundwater exceedances of Wisconsin NR 140 enforcement standards for PCBs, manganese, aluminum, and arsenic documented at numerous monitoring wells. The site is an active Wisconsin DNR Environmental Remediation Program case, with underground storage tank removals completed in 2024 and further investigation and remediation work continuing. 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
LocationWest Allis, Milwaukee County
Historical UseIndustrial & Manufacturing
Est. Operating Since1927
DNR ProgramEnvironmental Remediation Program
Contamination & Investigation
Site Assessment Summary
ContaminantsTrichloroethylene (TCE), tetrachloroethylene (PCE), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), RCRA metals (arsenic, manganese, aluminum), benzene, and volatile organic compounds in soil and groundwater
Regulatory ProgramWisconsin DNR — NR 700
BRRTS #02-41-595278

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.

Foundry and manufacturing operations at this site began in at least 1927 and continued for decades before 1986, placing nearly sixty years of contaminating industrial activity squarely within the pre-1986 window. The multi-parcel groundwater investigation, ongoing monitoring well network, and remediation work required to address widespread chlorinated solvent, PCB, and metals contamination under Wisconsin DNR oversight represent substantial 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.