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MassDEP: 54 POET systems installed, bottled water provided at 33 private-well locations as PFAS interim response
Summary
MassDEP said it has 54 point-of-entry treatment systems in place and supplies bottled water to 33 additional private-well locations while POETs are installed; GAC systems are used, require quarterly sampling and may need radon pretreatment or more frequent change-outs if co-contaminants such as 1,4-dioxane are present.
MassDEP staff described practical measures the agency is taking to address imminent hazards from PFAS in private water supplies, including point-of-entry treatment (POET) installations, interim bottled water and technical guidance for treatment design and maintenance.
"We currently are maintaining 54 point of entry treatment systems, and we provide bottled water to an additional 33 locations at this time," John Ziegler said. Installed POET systems generally use two carbon vessels in a lead'lag configuration with sampling ports for raw, mid-stream and effluent water. MassDEP said it typically uses bituminous-coal granular activated…
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