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PFAS and Other Emerging Contaminants

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Tetra Tech’s global network of world-class experts and practitioners helps our clients proactively manage risks and uncertainties related to PFAS and other emerging contaminants.

We support defense agencies, state and municipal agencies, and private sector clients with our best-in-class environmental management resources and Leading with Science® approach to address emerging contaminants in a wide range of media. Our team’s in-depth knowledge of the latest advancements in the field ensures that our clients receive the most accurate and informed assessments, recommendations, and remediation strategies. Our emerging contaminant experience includes:

  • Per- and poly-fluoroalkyl substances (PFAS)
  • Aqueous film forming foam (AFFF)
  • Microplastics
  • 6PPD/6PPD-Q
  • 1,4-dioxane
  • Perchlorate
  • Polybrominated biphenyls (PBBs)
  • Polybrominated diphenyl ethers (PBDEs)
  • Nanomaterials
  • Pharmaceuticals and hormones
  • Algal toxins
  • 1,2,3-trichloropropane
  • N-nitrosodimethylamine (NDMA)
  • Antimicrobials (triclosan)
Two Tetra Tech employees collecting samples of condensate in volatile organic compound bottles

Understanding Complex Chemicals in the Environment

Tetra Tech scientists apply a range of methods to gain a comprehensive understanding of emerging contaminant degradation processes, including their transformation, mobilization, bioavailability, and persistence in soil, sediment, groundwater, surface water, stormwater, and wastewater. 

  • Toxicity studies
  • Conceptual site models
  • Stratigraphic modeling
  • Data analysis and environmental modeling
  • Human health and ecological risk assessment
  • Feasibility studies
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Navigating Evolving Regulatory Programs

Tetra Tech understands the developing regulations and potential future compliance requirements for emerging contaminants. Our international regulatory expertise includes Asia, Australia, Canada, Europe, Mexico, and South America. Within the United States, our regulatory experience includes the following:

  • Resource Conservation and Recovery Act
  • Comprehensive Environmental Response, Compensation, and Liability Act
  • Toxic Substances Control Act
  • Clean Air Act
  • Clean Water Act
  • Solid Waste Disposal Act
  • Toxics Release Inventory Program
Tetra Tech employees conducting aqueous film forming foam (AFFF) replacement

Providing Comprehensive Solutions

Tetra Tech is a leader in providing comprehensive solutions that draw upon our interdisciplinary expertise, spanning environmental, water, wastewater, and solid waste industries.

  • Source zone investigation technologies
  • Site characterization of emerging contaminants
  • Watershed protection and management
  • Water and wastewater treatment facility upgrades
  • Site remediation
  • Waste disposal and treatment
  • Leachate treatment
  • AFFF treatment, replacement, and disposal

Connect with us. Reach out to our environmental solutions experts.

Our featured PFAS and other emerging contaminants highlights

Aerial view of the partially below grade 4.0 MGD Serrano Water District PFAS Plant showing the exterior screen walls

Designing Per-and Polyfluoroalkyl Substances (PFAS) Treatment Facilities

View of the Western Ghats, a forested mountain chain

Tetra Tech Wins Five Climate Change and Environmental Industry Awards

Underwater view of plastic pollution in ocean water and microplastics in the current

Evaluating the Risk of Microplastics in Coastal Waters

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Dr. Jerry Diamond Discusses the Practical Applications of Ecotoxicology to Manage Risk

Headshot of Arie P. Kremen

Dr. Arie P. Kremen Discusses the Role of PFAS in the Solid Waste Industry

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Mitigating PFAS Cross Contamination During AFFF Replacement Projects

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