(September 6, 2023, 2:13 PM EDT) -- HARRISBURG, Pa. — A landowner who contends that a state agency failed to act in response to contamination of his water supply from per- and polyfluoroalkyl substances (PFAS) used in hydraulic fracturing operations has filed a brief with the Pennsylvania Environmental Hearing Board (EHB) arguing that it should deny the agency’s motion to dismiss the case on grounds that the case is within the EHB’s jurisdiction....