What is the minimum distance a sanitary sewage treatment system must be from the side slope of interceptor drains?

In North Carolina, the regulations for the placement of a sanitary sewage treatment system dictate that it must be separated by a minimum distance from the side slope of interceptor drains to ensure safe and effective operation without interference. The correct answer reflects the need for adequate space to minimize the risk of potential contamination or flooding that could arise if the system is too close to the drainage system.

Specifically, maintaining a distance of 15 feet helps to ensure that the performance of the sewage treatment system is not adversely affected by the diversion of water from the interceptor drains, allowing for proper drainage and preventing backflow or saturation issues that could lead to system failure. This distance is rooted in best practices for public health and environmental protection, ensuring that both the septic system and the interceptor drains can function effectively without compromising the integrity of either system.

By adhering to this minimum distance, the potential for negative impacts on water quality and public health is significantly reduced, aligning with both local regulations and broader environmental safety standards.