Mealey's (March 20, 2020, 1:26 PM EDT) -- WEST CHESTER, Pa. — In a letter sent to the chair of the Pennsylvania Public Utility Commission (PUC) on March 18, a state senator called for a halt to all construction on the Mariner East 2 pipeline that will carry hydraulically fractured oil and gas from shale formations in Pennsylvania to refineries in Marcus Hook, Pa., because of health and safety concerns posed by “the growing spread” of COVID-19....