Industrial & Manufacturing cleanup site — Restorical Research
Northwest Pipeline GP Plymouth Plant
42612 E Christy Rd, Plymouth, Benton County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1955. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property was developed as a natural gas compressor station beginning in 1955, with Compressor Complex A operational by 1956. The facility expanded over the following decades to include LNG plants brought into service in 1974 and 1978, while an earthen pit for liquids operated on site from 1956 to 1974 and the original air compressor ran from 1956 through 1982 using Pydraul AC oil containing PCBs. Site investigations have confirmed PCBs, dioxins/furans, arsenic, lead, and petroleum hydrocarbons in groundwater, and cleanup is underway through the Voluntary Cleanup Program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address42612 E Christy Rd, Plymouth, Benton County
Historical UseIndustrial & Manufacturing
Est. Operating Since1955
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPCBs, dioxins/furans, arsenic, lead, and petroleum hydrocarbons (diesel and heavy oil ranges) detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #4212

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.

Contamination at this site — PCBs from hydraulic oil, petroleum hydrocarbons, and heavy metals — traces directly to compressor station and LNG plant operations that began in 1955 and ran continuously through the pre-1986 era. Occurrence-based CGL policies issued to the facility's operators during those decades carried no effective pollution exclusion under Washington law. The remediation costs being incurred to address confirmed groundwater contamination — and those still ahead — represent expenditures that historical carriers may be obligated both to recover and to fund going forward.

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.