Description: The issue of PFAS contamination is being highlighted throughout the country with many experiencing anxieties over possible water contamination.  PFAS are a group of man-made chemicals which include Perfluorooctanoic Acid (PFOA), Perfluorooctanesulfonic Acid (PFOS). Known as “forever chemicals” PFAS compounds have been found widely in the environment including thousands of groundwater sources throughout US. PFAS compounds are currently the #1 emerging threat to water systems. Continuing studies are identifying potential health risks associated with these chemicals. This session examines the origin, the concerns, and provides information for small systems about protecting public health. Participants will learn: Why these "forever" chemicals are not going away Where do PFAS come from What are the health effects of PFAS PFAS regulations in drinking water PFAS treatment technologies for drinking water systems The recommended audience includes board members, managers and operators.

The U.S. Environmental Protection Agency’s Office of Research and Development and the Office of Water invites you to attend a free webinar on Manganese. There will be two parts to this webinar. For further information, view the flyer for the webinar HERE. Presentation 1: Manganese Interference with Disinfectant Residual Methods This presentation will provide a summary of manganese occurrence in public water systems and describe its potential interference with commonly used methods to measure disinfectant residual. Case studies will be shared to demonstrate this issue. A flow chart to diagnose manganese interference will be introduced to help identify approaches to minimize manganese interference with commonly used methods, including sample pre-treatment, sample filtration, and alternative methods. Presentation 2: Management of Manganese and Small System Considerations Treatment of manganese is an ongoing concern for operational, esthetic and, more recently, health reasons. Manganese has been shown to be accumulated and released from the distribution system. These release events can cause discolored water but also release other regulated metals of health concern (e.g. lead, arsenic) into the distributed water. Research indicates that a finished water concentration of <0.02 mg/L is achievable by most utilities by optimizing existing treatment. At this concentration, it can also […]

Description: The issue of PFAS contamination is being highlighted throughout the country with many experiencing anxieties over possible water contamination.  PFAS are a group of man-made chemicals which include Perfluorooctanoic Acid (PFOA), Perfluorooctanesulfonic Acid (PFOS). Known as “forever chemicals” PFAS compounds have been found widely in the environment including thousands of groundwater sources throughout US. PFAS compounds are currently the #1 emerging threat to water systems. Continuing studies are identifying potential health risks associated with these chemicals. This session examines the origin, the concerns, and provides information for small systems about protecting public health. Participants will learn: Why these "forever" chemicals are not going away Where do PFAS come from What are the health effects of PFAS PFAS regulations in drinking water PFAS treatment technologies for drinking water systems The recommended audience includes board members, managers and operators.