This property has a documented history as a industrial and manufacturing facility predating 1986. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.
Sierra Pacific Industries' Shelton property has a documented history of industrial use encompassing timber processing and railway infrastructure, including an existing timber railway area with treated railroad timbers and historical fuel storage near a roundhouse. Contamination — petroleum hydrocarbons attributed to No. 6 fuel oil and polycyclic aromatic hydrocarbons (PAHs) from treated railroad timbers — was discovered during construction of a new sawmill on the site. Cleanup to date has included removal of underground storage tanks, excavation and disposal of 74 tons of petroleum-contaminated soil, and pumping of a vault containing oil sheen. Sierra Pacific Industries intends to enter the Voluntary Cleanup Program to address remaining contamination. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
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 petroleum and PAH contamination at this property traces directly to historical fuel storage operations and railway materials use that predate 1986, when occurrence-based Commercial General Liability policies were still the industry standard and lacked effective pollution exclusions. Documented remediation expenditures — tank removals, soil excavation, vault remediation — are already on record, and the forthcoming Voluntary Cleanup Program process will generate additional costs tied to the same pre-1986 operations. Historical CGL carriers whose policies covered Sierra Pacific Industries or its operational predecessors during that window may be obligated to fund both past cleanup costs and the remediation work still ahead.
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
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Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


