TUBE-LOY INFORMATION

Based on extensive research of 1940-vintage water service line records, WSSC is conducting a comprehensive effort to locate, test and replace water service lines - pipes that carry water from the water main in the street to the home - made from a little-known lead alloy called Tube-Loy. An in-depth literature review by WSSC identified that the alloy is 99.7 percent lead and was sometimes used for water service lines during World War II due to copper and steel shortages. After analysis of approximately 400,000 plumbing records, WSSC has identified approximately 2,900 service lines in Montgomery and Prince George’s counties that potentially could have Tube-Loy. Please click on the following links to learn more about our aggressive efforts to remove these pipes from our water distribution system.