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Commission hears PFAS testing update: Silver Lake readings reported just above 3 ppt
Summary
A staff update reported PFAS detections in Brockton's Silver Lake just above 3 parts per trillion and non-detect results at a desalination plant; commissioners noted a federal PFAS standard change to 4 ppt in 2027 and discussed testing challenges and costs.
Commissioners heard an update on PFAS testing in local water supplies during the April 28 meeting. Patrick Hill reported that Brockton's Silver Lake recorded low PFAS levels just above 3 parts per trillion, while the desalination plant returned non-detect results.
Members noted that a federal PFAS standard is changing to 4 parts per trillion in 2027 and that testing to that lower level remains technically challenging and expensive. Commissioners did not adopt any new policy or funding through a vote during this meeting specific to PFAS testing; the item was discussed in the context of ongoing monitoring and equipment needs.
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