This MassDEP guide to cyanobacteria includes general information about: what they are, the potential health risks, and where to get more information. It also includes fact sheets and resources for Public Water Suppliers.
The MassDEP Office of Research & Standards Guideline for per- and polyfluoroalyl substances (PFAS) in drinking water. The regulatory limit is 70 parts per trillion (ppt) for the sum of 5 PFAS compounds. June 8, 2018.
MassDEP in partnership with the Massachusetts Department of Fire Services (MassDFS) has a take-back program to assist fire departments in the proper disposal of legacy firefighting foams that could impact water resources.