Warning 'Ping' from PCCP Pipe Averts Danger

摘要

It promised to be like any other Washington area 4th of July weekend - hot and humid -with pool parties and fireworks; lots of fun in the sun and water. But just a few days before the official holiday this year, a "ping" from below ground in a DC suburb registered on a computer in Calgary, Alberta. That ping was "heard" by the Acoustic Fiber Optics (AFO) monitoring system, installed in almost 28 miles of pipeline in the Washington Suburban Sanitary Commission's (WSSC) distribution system.