What is the minimum setback distance for wells from the edge of a drain field?

The minimum setback distance for wells from the edge of a drain field is established to protect water quality. A distance of 100 feet is typically required to ensure that any contaminants that may leach from the drain field do not reach the well water source. This setback is crucial in preventing the potential for pathogens and nutrients, such as nitrogen and phosphorus, from impacting drinking water supplies.

Factors contributing to the establishment of this distance include soil absorption rates, groundwater flow patterns, and the potential for contamination. The more significant the distance, the lower the risk of contaminants affecting nearby water sources. Adhering to such guidelines helps secure safe drinking water and is a critical aspect of responsible septic system management.