A natural gas pipeline moves flammable gas under extreme pressure, creating a risk of pipeline rupture and potential explosion. The “potential impact radius” or “hazard zone” is the approximate area within which there will be immediate damage in the case of an explosion. Should this occur, everything within the hazard zone would be incinerated and there would be virtually no chance of escape or survival. Based on pipeline diameter and pressure, the hazard zone can be calculated using the formula: potential impact radius = 0.69 * pipeline diameter * (√max pressure ).
Based on this formula, the hazard zone for the Central Penn Line North, with its diameter of 30 inches and maximum pressure of 1,480 psi, is approximately 796 feet (243 meters) on either side of the pipeline. The hazard zone for Central Penn Line South, with its diameter of 42 inches and maximum pressure of 1480 psi, is 1,115 feet (340 meters) on either side.
Many residents are unaware that their homes, workplaces, and schools are located within the hazard zone of the proposed Atlantic Sunrise Pipeline. Williams does not inform the public about this risk, primarily communicating with landowners along the right-of-way.