PFAS Assessment, Design, and Remediation

Tetra Tech provides expert technical services for assessment and treatment of per- and polyfluoroalkyl substances (PFAS) in soils and water supplies.

PFAS—emerging, persistent compounds that resist degradation in the environment—are used in many consumer and industrial applications, including stain- and water-resistant coatings for carpets and fabric, commercial household products, production facilities, and firefighting foams. Because of their extensive production and use, PFAS have become widely distributed in the environment and detected in water, air, food, wildlife, and humans. PFAS can accumulate and stay in the human body for extended periods of time, and evidence suggests that prolonged exposure can lead to adverse health outcomes.

Tetra Tech performs assessment, engineering design, and remediation of PFAS-contaminated sites in locations around the world, from the United States to Australia. Our experts combine state-of-the-art techniques with demonstrated best practices.

Our team possesses the analytical chemistry expertise to ensure that PFAS identification, analyses, and remediation are conducted in accordance with strict, project-specific requirements using the most reliable and consistent analytical data currently available.

Tetra Tech’s services encompass all aspects of the water cycle, help protect public health, and improve quality of life. Tetra Tech’s drinking water and groundwater experts work with communities to reduce PFAS concentrations in water supplies using state-of-the-art solutions such as reverse osmosis, nanofiltration, and ion exchange.

Identification

Site investigations
Data review and work plan development
Target analyte reporting lists
Standardized procedures development for large sampling programs
Community outreach and engagement

Assessment and Analysis

Monitoring well and borings installation
Groundwater, surface water, stormwater, wastewater, and soil and sediment sampling
Groundwater fate and transport modeling
Human health and ecological risk assessment
Pre- and post-treatment system (e.g., activated carbon, reverse osmosis) sampling