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White Lodge Water Treatment Plant PFAS Treatment

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  • White Lodge Water Treatment Plant PFAS Treatment

Project Overview

Image Above: Rendering the White Lodge Water Treatment Plant. The building features a brick facade that matches the existing building, a flagpole with an American flag, fencing, trees, and shrub plantings. 

Funding:
The project is funded by the Massachusetts State Revolving Fund in partnership with the U.S. Environmental Protection Agency

Overview:
In October 2025, the Dedham-Westwood Water District will begin constructing a 2,800 square-foot masonry building addition to the existing White Lodge Water Treatment Plant in Westwood for Per- and Polyfluoroalkyl Substances (PFAS) treatment. This project aims to treat water for PFAS to comply with state and federal regulations.

The project will:

  • Include site work, framing, electrical, HVAC, fire protection, and plumbing systems
  • House a PFAS water treatment system sized for 4.5 Million Gallons Per Day (MGD), which will treat water from the existing greensand filtration process.
  • Replace pipe for the existing greensand filters, the motor control center, four high lift pumps, and two wash water pumps.
  • Integrate the new treatment technique into the existing treatment processes.
  • Add solar panels to the existing treatment plant and new building addition.


The project is expected to be completed by Spring 2027.

What treatment process will be used for PFAS removal, and how does it work?In 2024, the District tested several treatment options and found that the best way to remove PFAS at the White Lodge Treatment Plant was to implement a treatment process called ion exchange.

Think of this process like a magnet. We use a special filter material (called resin) that acts like a positive magnet. PFAS chemicals act like the opposite, negative side of a magnet. When the water flows through the filter, the PFAS are pulled in and stick to the resin — just like how opposite magnets snap together — while the clean water passes through.

IX resins used for PFAS treatment operate by exchanging chloride anions with PFAS compounds, thereby removing them from the source water.

 

Image Left: Rendering the new White Lodge Water Treatment Plant PFAS Treatment.
The treatment consists of piping, tanks, and filters.

Progress Photos

Please check back soon!

Questions

Please direct questions or concerns about the project to the District email or phone at 781-329-7090.