The Legal Intelligencer
(by Matt Wood)
Over the past few months, Governor Tom Wolf’s administration, the Pennsylvania Department of Environmental Protection (DEP), and other governmental stakeholders, have made strides toward better understanding and addressing contamination of state waters with perfluoroalkyl and polyfluoroalkyl substances (PFAS). Specifically, recent sampling efforts of certain public water systems (PWSs) and surface waters have resulted in new information about the prevalence of PFAS in state waters and have informed DEP actions toward regulating certain PFAS compounds.
Public Water Source Sampling
On June 3, 2021, the Wolf administration released sampling results from an approximately two-year long statewide effort to sample PWSs for certain PFAS compounds. PFAS are a group of manmade chemicals used in numerous industrial, commercial, and consumer products. Prominent examples include non-stick and waterproofing applications and as chemical components of fire fighting foams. In recent years, PFAS chemicals have been discovered in the environment, including in groundwater (some used as drinking water sources), and in humans, plants, and animals and some studies suggest that PFAS can negatively affect human health. Because they do not break down naturally in the environment (including in the human body), they are commonly called “forever” chemicals.
In September 2018, Governor Wolf created via Executive Order a PFAS Action Team to investigate and address potential PFAS concerns in the Commonwealth. The Action Team, made up of agency heads from multiple Pennsylvania agencies, subsequently developed a plan to sample PWSs for PFAS. Specifically, the Action Team identified PWSs within a half-mile of potential PFAS sources (such as military, fire training, and manufacturing facilities).
In June 2019, the DEP started sampling these PWSs (as well as other locations outside of the half-mile radius of potential sources to establish a baseline). …
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