Aviation environments tolerate little margin for error. Aircraft movements, critical infrastructure, and stringent security requirements create an operational backdrop that demands more than technical competence from environmental practitioners; it demands a genuine understanding of how airports function and what it means to work safely and effectively within them.

The consequences of poor advice or delayed delivery can extend well beyond the environmental, affecting operations, tenancies, regulatory standing, and public reputation.

Every airport is also unique. Commonwealth legislation may set the overarching framework, but local regulatory nuance, tenant complexity, and site-specific operational constraints mean that no two engagements are alike. Airport corporations managing legacy contamination, tenants navigating their compliance obligations, and government departments overseeing airport land and infrastructure each face a distinct set of challenges. Each requires an advisor who understands not just the technical problem, but the operational and commercial context surrounding it. The environmental consultant who has worked at one Australian airport has not worked at them all – and clients in this sector know the difference.

Western Environmental has delivered environmental services at airports in every Australian state and internationally — to airport corporations, tenants, and government departments across the full spectrum of aviation activity. Our staff hold current ASIC clearances, airport inductions, and site-specific accreditations. Airside and landside, we execute high-risk programs with the discipline and situational awareness these environments demand. Where contamination, approvals, or compliance matters intersect with active operations, we are experienced in finding solutions that protect both the environment and continuity of business.

Our technical capabilities span PFAS assessment and management, complex remediation, specialist technical advisory, litigation support, audit, and approvals and compliance. Whether supporting an airport corporation through a major PFAS investigation, advising a tenant on their environmental lease obligations, or providing independent audit and litigation support in a disputed matter, we bring the same standard of rigour and the same commitment to defensible, commercially aware advice. That breadth of expertise, combined with our operational credibility in one of Australia’s most demanding work environments, is what positions

Featured Projects

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    Optus Stadium

    Western Environmental was engaged by the primary contractor to design, construct, operate and maintain a groundwater “capture and contain” remediation system comprising a 480 m groundwater dewatering array and multi-stage treatment system to adjust pH, remove suspended solids, metals and a range of organic contaminants that were mobilised as a result of ground improvement works to augment stadium construction. Abstracted water was successfully treated and subsequently re-used during construction, thereby avoiding off-site discharge or disposal.

    During subsequent phases of the project, Western Environmental were engaged client-side as expert advisors in relation to contamination and ASS management and were responsible for contractor oversight, review of consultant and contractor reports/plans and documents, auditing of contractor performance for compliance with project documentation and regulatory guidelines, and preparation of project close-out reports.

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    Government of Western Australia Transport Authority

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    Hawai’i PFAS technical advisory

    Western Environmental has been engaged as a PFAS subject matter expert and strategic technical advisor to a US-based proponent who is responsible for a large portfolio of PFAS-impacted aviation and industrial sites across the Hawai’ian Islands.

    Works to date have included technical review of site investigation and modelling reports, preparation of site-specific Risk Assessments and Remediation Options Assessments, provision of strategic advice and regulatory engagement, and scoping of bench and pilot scale treatability trials for soil and water. Future phases of works will include delivery and oversight of bench and pilot scale remediation and treatment programmes, through to full-scale remediation.

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    PFAS Expert Witness

    Western Environmental was engaged to provide consulting expert witness services in relation to ongoing litigation at a major Australian airport. Tasks included technical review of reports and documentation and strategic advice in relation to assessment of PFAS impacts, risks and associated liability.

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  • Featured

    Airport PFAS Audit

    Western Environmental was engaged to provide contaminated land auditing services in relation to estate-wide PFAS site assessment and management at a major airport in Queensland. Tasks include audit of investigation reports (PSI, SAQP, DSI), hydrogeological modelling reports and PFAS mass flux assessments.

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    Airport Estate PFAS Assessment

    Western Environmental was engaged to undertake an estate-wide PFAS-targeted preliminary site investigation at a large general aviation airport in WA.

    Works included review of data and reports spanning a 40-year history, identification of areas of concern and the development of a robust conceptual site model to inform future stages of assessment and management on the estate.

    Areas of elevated risk were identified, with specific recommendations and risk rankings to address pertinent issues.

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    Perth Airport Strategic Advisory

    For more than a decade, Western Environmental has been engaged as an expert consultant and strategic advisor to Perth Airport. Consultancy works and strategic advice have been broad ranging, and include PFAS site assessment and remediation planning, site investigation of major hazard facilities, remediation costing and transaction advisory, ecological surveys, compliance monitoring, technical review of consultant reports, strategic advice regarding environmental approvals, MDPs and environmental offsets under Federal legislation.

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    PFAS Construction Management

    Western Environmental was selected as the primary consultant and remediation contractor on a major construction project for an international retail client involving the design, construction, operation and maintenance of a PFAS groundwater treatment plant for construction dewatering.

    Project delivery included consulting services (site investigation, management plans, risk assessment, approvals and permits, regulator liaison, remediation design, compliance monitoring and reporting) as well as plant operations (design and construction, commissioning, operations and maintenance) and waste management (spoil/treatment media handling, storage and disposal). Poor influent water quality combined with variable flow rates required innovative system design including bespoke pre-treatment. The plant was deployed in a mobile capacity at different locations within the site, requiring short turnaround remobilisation.

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    PFAS Surface Water Remediation

    Western Environmental was engaged to deliver a five-year contract for the design, construction, operation and maintenance of a PFAS water treatment system to extract and treat surface water emanating from a source area at a major Australian airport. Project design and construction included obtaining necessary permits and approvals, civil and electrical works, plant installation and commissioning.

    Project delivery has included the ongoing operation and maintenance of the plant, waste management and disposal, compliance monitoring, reporting and regulatory liaison. Our expert PFAS consultancy team was also able to review site conditions and historical data to provide client-side objective and scope refinement, leading to an optimised remediation design, saving considerable time and costs.

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