Public Works cleanup site — Restorical Research
US NAVY SUBASE OU1 ORD DISP
Silverdale, Kitsap County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a public works and maintenance facility going back to 1962. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

Site A at Naval Base Kitsap-Bangor served as a designated Burn Area for the detonation and incineration of ordnance materials — including a shielded blast pit for TNT and an incinerator for small arms ammunition and pyrotechnics — from 1962 through 1975, with limited activities continuing until 1986. Cleanup under the Standard Cleanup program included excavation and treatment of 14,100 cubic yards of contaminated soil via soil washing and composting from 1993 to 1997, followed by a pump-and-treat groundwater remediation system with GAC and UV/oxidation that has been operating since 1997. The remediation program is now transitioning to biostimulation with up to 24 injection wells in the perched zone, with pump-and-treat operations projected to continue for several more decades and an estimated total present-worth remediation cost of $3,100,000. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Public Works
AddressSilverdale, Kitsap County
Historical UsePublic Works
Est. Operating Since1962
StatusConstruction Complete — Performance Monitoring
Contamination & Investigation
Site Assessment Summary
ContaminantsMunitions constituents (RDX, TNT, DNT) detected in soil and groundwater
Media ImpactedSoil, Groundwater, Surface Water
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #148

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.

The munitions-constituent contamination at this site — RDX, TNT, and DNT — was deposited entirely during ordnance operations conducted between 1962 and 1975, more than a decade before the 1986 threshold at which occurrence-based Commercial General Liability policies ceased to provide effective pollution coverage. Federal military operators carried liability insurance during that operational window, and the policies in force at the time of the contaminating events may still be reachable. The site's multi-decade remediation trail — soil excavation and washing, decades of pump-and-treat, biostimulation, and long-term institutional controls projected to extend well into the future — establishes both past expenditures and a substantial forward cost stream that historical carriers may be obligated to address.

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.