Water Main Cleaning and Lining—A Utility Perspectiveby Peter K. Mac Ewen, Chester Water Authority, Chester, PA, USA,
Robert W. Naef, Chester Water Authority, Chester, PA, USA,
Abstract: The Chester Water Authority is a regional water supply system located in Southeastern Pennsylvania serving a population of over 140,000 people in two countries and a large industrial complex on the Delaware River, south of Philadelphia. In 1974 the Authority instituted a program whereby the older mains in the system were identified and each year over one mile of pipe has been cleaned and relined to improve the flow characteristics and to eliminate internal corrosion of the main. The cost of the cleaning and lining over a 13 year period indicates that it is more effective to clean and line those mains that are structurally sound than to replace the mains and the customers' service lines attached to them.
Subject Headings: Water supply systems | Pipe cleaning | Water quality | Linings | Water pipelines | Light rail transit | Industries | North America | United States | Pennsylvania | Philadelphia | Delaware
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