Howard outlines costly ion exchange system for PFAS water treatment

Nantucket's Capital Program Committee has made significant strides in addressing water safety concerns, particularly regarding PFAS contamination. During a recent meeting, officials discussed the implementation of a new treatment system designed to effectively manage and mitigate these hazardous substances in the town's water supply.

The proposed system will utilize an ion exchange resin technology, which binds PFAS ions to the resin, allowing for their removal from the water. This process will require the resin to be replaced every three to four years, with an estimated cost of around $400,000 for replacement and disposal at a certified hazardous waste site. The committee emphasized that the resin is not a disposable item; it can be regenerated and reused, which will help manage long-term costs.

To ensure reliability, the treatment system will include four major filters, with two operating at any given time and two serving as backups. This design allows for continuous water treatment, even during maintenance or resin replacement. Additionally, the committee is preparing for potential power outages by evaluating the capacity of the backup generator to support the treatment system.

The discussions highlighted the importance of proactive measures in safeguarding Nantucket's water quality. As the town moves forward with this project, residents can expect enhanced safety and reliability in their water supply, reflecting the committee's commitment to addressing environmental health concerns effectively.