Excerpt: Thank you for your editorial on the need for better protection of Cape Cod drinking water ( “Worst case scenario?” May 23).
Our research at Silent Spring Institute underscores the importance of that message. Our studies found perfluorinated compounds not just in Hyannis wells affected by firefighting foams, but also in public and private drinking water wells throughout Cape Cod. We also found antibiotics and other medications, flame retardants and artificial sweeteners, especially in wells located in densely developed areas. In many instances, the source is our own wastewater, which enters groundwater from septic systems.