Pennsylvania state police are investigating how a woman became trapped in a drainpipe at a closed power plant. Emergency crews in Greene County were called to FirstEnergy’s now-shuttered Hatfield Power Plant in Carmichaels on Monday morning. Trooper Forrest Allison says a worker was about to drain a pond on the property into the nearby Monongahela River when he heard the woman shouting from the drainpipe below. She was freed and taken to a hospital.