Liberty Mutual has successfully fought off a $3.4 million pollution liability claim after a court ruled the construction company's costs did not actually "arise from" the pollution conditions.
The NSW Supreme Court handed down its decision on December 23, 2025, in a case that offers a pointed reminder to insurers and policyholders alike about the precise mechanics of causation language in pollution liability policies.
Seymour Whyte Construction had been working on a Chandler Highway upgrade project in Melbourne under contract with VicRoads when asbestos-contaminated soil was discovered in August 2017. What followed was a costly exercise in managing and removing the contaminated fill, involving hygienists, licensed asbestos removalists, and specialist contractors. The construction firm turned to its Contractor's Pollution Legal Liability Policy, seeking to recover the expenses from Liberty Mutual Insurance Company, trading as Liberty Specialty Markets.
The policy's insuring clause obligated Liberty to pay sums the insured becomes "legally obliged to pay for Loss arising from Pollution Conditions caused by Covered Operations." The definition of Pollution Conditions included "the emission, discharge, dispersal, migration, release or escape of Pollutants."
Here is where things got interesting. Justice McHugh accepted that Seymour Whyte's act of transporting and stockpiling asbestos-contaminated soil did constitute Pollution Conditions under the policy. Moving contaminated material to a new location, the court reasoned, could properly be described as causing the dispersal or migration of a pollutant.
But that concession was not enough to save the claim.
The critical question was whether the costs Seymour Whyte incurred actually arose from those pollution conditions. WorkSafe Victoria had issued improvement notices directing the company to implement safe work systems for handling contaminated materials. The court found these notices were not about cleaning up past pollution events. They were about ensuring future construction work was done safely.
And that obligation, Justice McHugh determined, already existed under section 21 of the Occupational Health and Safety Act 2004 (Vic), entirely independent of any pollution incident. The company would have faced the same costs regardless of whether any pollution conditions had occurred.
The court placed particular weight on the word "becomes" in the insuring clause. If an insured was already legally obliged to pay certain costs, it cannot sensibly be said they "became" obliged because of a pollution event.
Seymour Whyte's summons was largely dismissed. The company succeeded only on a narrow point, establishing entitlement to recover legal costs incurred in obtaining advice about what the improvement notices required. The quantum of those costs remains to be determined.
For insurers writing pollution liability coverage, the decision reinforces the importance of the "arising from" trigger. Costs that stem from pre-existing statutory or contractual obligations will not automatically transform into covered losses simply because a pollution incident brought them to light.
