What is the recommended vertical distance for placing water lines from sewage?

The standard practice for placing water lines in relation to sewage involves maintaining a minimum vertical distance to prevent contamination and ensure public health safety. The correct recommendation involves placing the water lines at least 1 foot above the sewage lines where they cross. This distance helps to reduce the risk of sewage leakage contaminating the potable water supply, especially during flooding or other environmental changes that could cause shifts in the ground or infrastructure.

Maintaining this distance can also be critical for inspections, repairs, and relining activities in both water and sewage systems, allowing for an adequate safety margin. Following these guidelines is essential for utilities maintenance workers to ensure compliance with health regulations and industry standards.