Job Description
Major Metals Refinery Closure
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12-month full time, site-based project (extension possible)
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FIFO (2:1) from any Australian location to Nhulunbuy, Northern Territory
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About the Project
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Tetra Tech Coffey is delivering environmental and contaminated land services to support a major metals refinery closure in Northern Territory, a major component of a broader decommissioning program. Works involve remediation tracking, contaminated materials management, validation of remediation scopes, and compliance oversight in a complex remote industrial environment.
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The Role
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We are seeking an experienced (2 to 5 years) Contaminated Land Consultant (field‐based) to provide on-site soil validation advice and support, sampling supervision, and contaminated materials support during remediation earthworks.
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You will work daily alongside the client, providing practical, technically defensible environmental advice to support the remediation objectives and maintain compliance with the Remediation Action Plan.
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Key Responsibilities
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Field Delivery
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Collect soil and surface water samples, to complete contaminated soil and surface water assessments, delineation, and validation sampling.
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Manage and maintain health and safety on a large remediation project with significant heavy plant movements.
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Provide field-based material advice to the remediation contractor.
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Oversee material tracking and compliance with the remediation action plan and the remediation validation plan.
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Manage unexpected finds and provide advice to the remediation contractor.
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Maintain strong QA/QC and field records.
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Undertake field pH testing.
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Work collaboratively with site teams, technical and project management teams based offsite.
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Contractor Interface
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Act as the primary site contact for client requests and advice and manage technical delivery of requests in collaboration with the subject matter expert.
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Support daily pre‐starts and toolbox talks.
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Attend regular client meetings.
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Balance production needs with environmental compliance.
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Reporting & Compliance
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Prepare field summaries and contribute to validation reporting.
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Prepare material classification and other technical memorandums, based on ongoing site requirements.
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Maintain chain‐of‐custody and coordinate laboratories.
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Support EMP, HSE, and regulatory compliance obligations.
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About You
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You'll have:
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You'll be a qualified Environmental Scientist with 2-5 years' experience in contaminated land consulting.
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Demonstrated experience conducting soil and surface water samples, assessments, delineation, and validation sampling on
brownfield/industrial
sites.
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Experience supporting civil earthworks.
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Strong documentation and communication skills.
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Current, unrestricted Australian Driver's License.
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Ability to meet company & project medical requirements.
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Confident working independently in remote FIFO settings.
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Highly Regarded:
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NT regulatory knowledge.
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Large‐scale remediation or decommissioning experience.
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FIFO or remote project experience.
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What We Offer
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Highly competitive salary; provision of mobilisation costs including flights, camp accommodation and meals.
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2:1 roster (or 2:2 / 3:1 depending on candidate).
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Chance to contribute to one of the Southern Hemisphere's most significant industrial closure and remediation projects.
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Long-duration project exposure within a technically complex heavy industrial environment.
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Support from an experienced, highly credentialled Environmental Scientists.
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About us
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Tetra Tech Coffey provides high-end environmental, geotechnical, digital, and engineering design consulting services in Australia, New Zealand and Papua New Guinea. Every day, our people come together to solve complex challenges for our clients.
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With over 30,000 Tetra Tech colleagues across 550 offices globally, we deliver projects that improve lives through science, technology, and innovation.
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Our commitment to creating lasting, measurable value is reflected in our global1 Billion People Challenge, which tracks how our 100,000+ annual projects benefit people and communities around the world.

📌 Environmental Scientist/Contaminated Land (Fifo) - Northern Territory (Katherine)
🏢 Tetra Tech Coffey
📍 Katherine