At what minimum distance must a sewer line be installed from a water line?

The minimum distance that a sewer line must be installed from a water line is 10 feet. This specification is crucial in plumbing codes to prevent contamination of drinking water and to ensure the safety and health of the public. The separation distance helps to reduce the risk that a sewage leak could lead to contaminants entering a potable water supply through cross-connections or groundwater contamination. This protective measure is an important part of maintaining sanitary conditions in both water and waste management systems.

Different plumbing codes may specify different distances, but the reasoning behind the 10-foot requirement is based on hydraulic and environmental studies that indicate this distance is sufficient to mitigate potential contamination risks. Understanding these regulations helps plumbers and installers ensure that systems are designed and installed to comply with health and safety standards.