PFAS Firefighting Foams and Industrial Remediation
Historical firefighting infrastructure is becoming a more visible consideration during industrial remediation, facility upgrades and hazardous material management activities.
The servicing, replacement and decommissioning of firefighting infrastructure is generating additional waste classification, containment and remediation considerations across refineries, fuel terminals, hazardous material facilities, ports, logistics operations and heavy industrial processing sites. PFAS-impacted residuals emerge during hydrant upgrades, foam replacement programs, system flushing, demolition works and post-fire remediation activities.
queous film-forming foams (AFFF) containing PFAS have historically been used throughout industrial fire suppression systems due to their effectiveness in managing hydrocarbon and fuel-based fire risks. Many historical AFFF products contained compounds including perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), substances now closely associated with long-term contamination management and environmental containment obligations linked to installed firefighting systems. Their persistence in soil, groundwater and aquatic environments has contributed to ongoing investigation and remediation programs, with research continuing into the potential environmental and human health implications associated with historical exposure.
Industrial redevelopment, refinery upgrades, fuel terminal transitions and remediation projects require assessment of firefighting systems and associated contaminated materials under evolving environmental controls. These activities generate contaminated liquids, flushing waters, sludge, affected pipework and firewater systems requiring temporary containment prior to classification, transport and disposal.
During hydrant flushing and foam system isolation activities, impacted liquids often require temporary containment prior to laboratory analysis, waste classification and transport approval processes.
PFAS-impacted firefighting residuals require coordinated management across environmental compliance, dangerous goods handling and regulated waste frameworks.
Unlike conventional industrial waste streams, PFAS-affected materials require structured classification, containment and disposal processes before compliant transport and treatment pathways can be determined. Contaminated firewater, foam concentrates, sludge, absorbent materials and flushing liquids require assessment depending on the composition of the material and extent of contamination.
Temporary storage also becomes a consideration prior to transport or treatment. Depending on the waste stream, this involves segregation requirements, bunded containment areas, incompatible material separation and controls designed to prevent uncontrolled environmental release during staging activities.
Landfill acceptance criteria and treatment pathway limitations remain subject to ongoing regulatory change. PFAS-impacted liquids and residual materials are not always suitable for conventional disposal pathways, with some waste streams requiring specialist treatment, destruction or containment options depending on the applicable regulatory framework and facility acceptance requirements.
Under guidance issued by the NSW Environment Protection Authority (EPA) regarding PFAS firefighting foams, operators are required to verify foam composition through SDS documentation, manufacturer confirmation or accredited laboratory testing where PFAS content is uncertain. The guidance also highlights the importance of preventing uncontrolled discharge, containing contaminated residuals and appropriately managing firefighting residuals during maintenance, removal and clean-up activities.
National restrictions introduced from July 2025 relating to PFOS, PFOA and PFHxS-containing products continue to influence foam replacement programs, remediation planning and transition activities across industrial infrastructure. Public and regulatory calls for a permanent phase-out of PFAS chemicals in Australia highlighted growing concerns regarding the continued use of PFAS-based firefighting foams and the long-term environmental management challenges associated with these substances. Further guidance is available through NSW EPA PFAS firefighting foam regulation updates. Industry guidance surrounding fluorine-free foam transition programs also continues to expand across fuel storage, marine, logistics and industrial infrastructure sectors, including Fire Australia guidance on fluorine-free foam transition considerations.
Infrastructure upgrades, demolition works and fire response activities can generate multiple contaminated waste streams requiring separate storage, transport and disposal controls. Following suppression activities or remediation works, operators are required to manage contaminated liquids, impacted PPE, soils, damaged containers, absorbent materials and spill response residuals under separate environmental, storage and transport obligations. Depending on the waste classification and jurisdiction, transport and waste tracking obligations also apply to affected materials.
Recent NSW EPA clean-up action relating to legacy PFAS contamination highlights the continuing environmental focus associated with historical firefighting foam use, containment obligations and long-term contamination management responsibilities. Similar considerations continue to emerge across fuel storage infrastructure, industrial fire response activities and remediation projects involving fire suppression systems.
The transition away from legacy PFAS firefighting foams is now extending beyond product replacement alone, with remediation projects, infrastructure upgrades and industrial facilities increasingly requiring specialised containment, classification and disposal pathways for affected residuals.
