This video explains water main breaks and how our crews respond. When there is a loss of water, the Philadelphia Water Department (PWD) will restore water services as safely and quickly as possible. Our Emergency Crews investigate the problem, identify the source of the leak, and take steps to ensure the public’s safety. If the leak is on PWD’s water main we will arrange to have utilities marked and take steps to protect the public’s safety. We may shut down the water to isolate the emergency. Specialized crews assist with the shutdown of large water main breaks.