What is one common cause of water contamination in distribution systems?

One common cause of water contamination in distribution systems is leaking pipes. When pipes develop leaks, they can allow contaminants from the surrounding soil or environment to enter the water supply. This intrusion can occur because the pressure inside the pipe is lower than the pressure in the surrounding area, creating a condition that draws external substances into the distribution system. This risk is heightened in older systems where pipe integrity may be compromised due to age, corrosion, or wear.

Furthermore, leaked water can carry sediment, bacteria, and other harmful pollutants that negatively affect water quality. Effective monitoring and prompt repairs of leaks are essential in maintaining the integrity of the distribution system and safeguarding public health.