Tetra Tech is partnering with the City of Dayton, Ohio, to identify innovative per- and polyfluoroalkyl substances (PFAS) treatment solutions and continue providing clean, safe drinking water to customers.
Challenge
More than 430,000 residents in Ohio’s Montgomery and Greene Counties rely on the City of Dayton for their drinking water. The regional water supply is impacted by PFAS contamination from legacy sources. The City has worked proactively to maintain a high-quality water source and water safety for the community. They have undertaken comprehensive water system improvements, including a dedicated PFAS treatment facility that is at the forefront of PFAS treatment in Ohio.
Solution
In collaboration with the City and key stakeholders, our water treatment experts are performing planning and engineering evaluations to identify an innovative and cost-effective treatment system at the 96 million gallons per day (MGD) Ottawa Water Treatment Plant.
Our team, in partnership with the City, is bench testing for adsorptive media selection, evaluating siting options for minimal impact within a congested site, performing a blending analysis to optimize treatment and extend media life, and identifying other plant infrastructure improvements required to support long-term operations. The project aims to enhance water treatment while minimizing operational costs, providing safe drinking water to the Dayton region.
The completed project will be the largest, dedicated PFAS treatment facility in the United States.
Benefits
- Largest dedicated PFAS treatment facility in the United States when complete
- Designed to achieve non-detect results for PFAS in treated water
- Design accounts for other emerging contaminants
- Full automation will limit increased operations and maintenance by City staff
- Additional 6.3 MG of clear well storage to provide emergency reserve