Senate Bill 309


This bill directed the Department of Environmental Services to evaluate the ambient ground water quality standards for perfluorooctanoic acid (PFOA) and perfluoroctanesulfonic acid (PFOS) and set ambient groundwater quality standards for perfluorononanoic acid (PFNA) and perfluorohexanesulfonic acid (PFHxS). It also established the criteria for setting maximum contaminant limits for public drinking water and directed the Department to set maximum contaminant limits for PFOA, PFOS, PFNA, and PFHxS. A toxicologist position was established in the Department, as well as a classified human health risk assessor.  

In 2019 New Hampshire adopted maximum contaminant levels that were challenged in a lawsuit by 3M, a sewage sludge disposal company, and a municipal water and sewer district. (Plymouth Village Water & Sewer District v. Scott, No. 217-2019-CV-00650 (N.H. Super. Ct. Nov. 26, 2019). 

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