Philadelphia is one of the oldest cities in the country but the Philadelphia Water Department's (PWD) approach to stormwater management, sewer overflow and water system leak detection represent a significant evolution in the methods in which the city manages its infrastructure. At the heart of these initiatives is a passion for effective asset management and an emphasis on the bottom line.Sewer and stormwater and managementThe City of Philadelphia's sewer and stormwater system is managed under the guidance of its Green City, Clean Waters initiative, which treats the region and its systems holistically. Composed of both traditional grey infrastructure and green
