What is the minimum horizontal distance of separation required between a sewer and a water main?

The minimum horizontal distance of separation required between a sewer and a water main is typically set at 10 feet to ensure the integrity and safety of both systems. This distance is crucial because it helps prevent potential cross-contamination of drinking water from wastewater, which can occur if there are leaks or failures in either system. By keeping this minimum separation, the risk of pathogens or harmful substances from the sewer infiltrating the water supply is significantly reduced.

The guidelines for these distances are established based on engineering best practices and public health considerations. Maintaining this separation distance assists in protecting the public from waterborne diseases and ensures compliance with various health and safety regulations. It is important to adhere to these regulations during planning and construction of utility networks to promote long-term public health and safety.