Industrial & Manufacturing cleanup site — Restorical Research
Northwest Plating
825 S Dakota St, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1957. 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 Northwest Plating metal electroplating facility from 1957 through at least 1989, with commercial activities centered on electroplating, coating, and refinishing using plating metals and trichloroethylene (TCE) as a cleaning solvent. Contamination was discovered in 1989 and attributed to smaller releases accumulated over decades of normal electroplating and anodizing operations. Remediation under the Voluntary Cleanup Program has proceeded in multiple phases: soil and tank excavation removed 150 cubic yards of impacted soil in 2005, followed by hazardous waste removal and building decontamination. Beginning in 2016, an interim remedial action combining Soil Vapor Extraction (SVE) and Enhanced Reductive Dechlorination (ERD) was implemented, with the SVE system removing 167 pounds of VOCs between May 2017 and February 2019 alongside quarterly groundwater monitoring. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address825 S Dakota St, Seattle, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1957
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsTrichloroethylene (TCE) and electroplating metals detected in soil and groundwater; VOCs in soil vapor
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #1361

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.

Electroplating and solvent-degreasing operations at this site using TCE and plating metals ran for nearly three decades before 1986 — the threshold year after which occurrence-based Commercial General Liability policies began carrying effective pollution exclusions. The contamination documented here is expressly characterized as the product of gradual, incremental releases during routine operations across that long pre-1986 window, which is precisely the pattern those older policies were written to address. Documented remediation expenditures spanning more than thirty years — including soil and tank excavation, hazardous waste removal, active vapor extraction, bioremediation, and ongoing groundwater monitoring — represent costs that historical carriers whose CGL policies were in force between 1957 and 1986 may be obligated to fund, with active remediation still underway.

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.

Ready to learn more?

Contact Us

This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.