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scientist wearing lab coat and gloves pointing at a bench-scale test in the labscientist wearing lab coat and gloves pointing at a bench-scale test in the lab

Westfield leads PFAS removal initiative 

Westfield tackled emerging PFAS contaminants using bench-scale testing and granular activated carbon to ensure safe, reliable drinking water.  

Client

City of Westfield

Location

Westfield, Massachusetts

Priorities

Connect with an expert

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Charles Schaefer Ph.D.
Envi­ron­men­tal R&D and Treata­bil­ity Studies Discipline Leader

Innovative PFAS treatment for safe and reliable drinking water in a Massachusetts community 

After PFAS, PFOA and PFOS were found in Westfield’s wells above EPA advisory levels, the city partnered with CDM Smith to identify the most effective treatment. Bench-scale testing guided the design of a granular activated carbon system, ensuring efficient contaminant removal and safe water for over 41,000 residents.  

Bench-scale testing to guide treatment 

Bench-scale studies helped to identify granular activated carbon (GAC) as a solution for removing the compounds of concern. 

A state-of-the-art treatment plant  

The new facility features GAC treatment, sodium hypochlorite and phosphate feed systems, and an office for sampling provisions. 

Construction oversight and support 

The team ensured smooth plant startup, monitoring installation and operational readiness to deliver compliant drinking water.

Enabling proactive public health protection  

Westfield acted before formal PFAS regulations, safeguarding residents and setting the bar for addressing future contaminants. 

Westfield’s proactive approach demonstrates that careful evaluation is key to addressing PFAS. Bench-scale testing provided certainty and guided design choices, resulting in a GAC-based facility that safely treats affected wells. The Owen District Road plant now ensures reliable water for the community while showcasing a model for emerging contaminant management. “Bench-scale testing allows us to understand much more about a given situation and how best to treat it,” says PFAS expert Charles Schaefer.

Curious to learn more?

Connect with an expert to find out how we delivered this project.

Schaefer_Charles_2019.jpg

Charles Schaefer

Director, CDM Smith Research and Testing Laboratory

Charles is a leading scientist and researcher and the director of CDM Smith's Bellevue, Washington research and testing laboratory.

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