Highland Hall School Water System

PFAS Mitigation

At a Glance
  • Client: Highland Hall School
  • Location: Bennington, VT
  • Dates: 2023-Present
  • Services Provided:
    • Concept Design
    • Preliminary Engineering Evaluation
    • DWSRF funding submissions
    • Detailed design and permitting (in progress)

Challenge

MSK is addressing PFAS contamination in a small public non-community water system in southwestern Vermont, serving 60 customers with a design flow of 10 gallons per minute. With PFAS concentrations exceeding 5 nanograms per liter, the system no longer complied with the newly established USEPA maximum contaminant level (MCL). Given the system's small size and limited flow capacity, MSK faced the challenge of developing a cost-effective and sustainable treatment solution that would meet regulatory requirements while ensuring safe and reliable drinking water for the community.

Solution

MSK completed a preliminary engineering evaluation and basis of design report, which was submitted to VTDEC in October 2024. The report recommends implementing an anion exchange treatment system to effectively remove PFAS from the water supply. MSK is currently preparing the detailed design, with plans to submit the public water system permit application in April 2025.

Results

The project is scheduled for construction in the summer of 2026, ensuring a long-term solution for providing safe and compliant drinking water to the community.