Industrial & Manufacturing cleanup site — Restorical Research
Hamilton Street Bridge Site
111 N Erie St, Spokane, Spokane County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1905. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as the Spokane Gas Manufacturing (SGM) facility from 1905 to 1948, producing coal gas and carbureted water gas — first under Union Gas Company, then under Spokane Gas and Fuel Company from 1910. An adjacent parcel was leased for coal tar processing beginning around 1905 and continuing through 1967. Remediation has involved management of between 6,292 and 92,000 cubic yards of contaminated soil through excavation restrictions, engineered capping, and placement of clean fill, combined with groundwater monitoring, stormwater controls, vapor assessment and mitigation, streambank bioengineering, and Restrictive Covenants. Construction is complete and the site is now in long-term operation, maintenance, and performance monitoring supported by financial assurances. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address111 N Erie St, Spokane, Spokane County
Historical UseIndustrial & Manufacturing
Est. Operating Since1905
StatusConstruction Complete — Performance Monitoring
Contamination & Investigation
Site Assessment Summary
ContaminantsCoal tar constituents and coal gasification byproducts in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #3509

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 Washington. 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.

Every pound of contamination at this site originates from coal gasification and coal tar operations that ended in 1948 and 1967, respectively — all predating by decades the 1986 threshold at which occurrence-based CGL policies began to incorporate effective pollution exclusions. The operators running those facilities through the mid-twentieth century were covered by policies that could not lawfully exclude the slow, ongoing releases now driving this cleanup. The documented scope of remediation here — tens of thousands of cubic yards of impacted soil, multi-year groundwater management, engineered caps, vapor controls, and financially assured long-term monitoring — represents the kind of large-scale cost trail that makes pursuit of historical carriers whose policies covered the SGM and coal tar operations both viable and warranted.

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 & Forensic Accounting

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 a successful cost recovery is possible, 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.