What is the minimum horizontal separation distance between a soil absorption system and a water well?

The minimum horizontal separation distance between a soil absorption system and a water well is stipulated to ensure that the groundwater quality is protected and the risks of contamination are minimized. A separation distance of 100 feet is significant because it allows for adequate dilution of effluent from the septic system before it can potentially reach the water well. This distance is based on hydrological studies and best management practices in wastewater treatment.

Choosing 100 feet as the standard helps mitigate the risk of pathogens, nutrients, and other contaminants from the septic system impacting the well water, which is crucial for public health and safety, especially in areas where the groundwater serves as a primary drinking water source. It is the recognized standard in many regulations and guidelines, underscoring the importance of water quality protection in septic system design and site planning.