Public water supply lines from lined evapotranspiration beds must be separated by what minimum distance?

The minimum separation distance of 10 feet between public water supply lines and lined evapotranspiration beds is crucial to ensure the protection of water quality. This distance provides a buffer zone that helps prevent any potential contamination from effluent or leachate that could migrate from the evapotranspiration beds into the water supply lines.

Evapotranspiration beds are designed to manage and treat wastewater through natural processes, and while they are effective for this purpose, there is always a risk of pathogen or nutrient transfer, especially during heavy rain or flooding. By maintaining at least 10 feet of separation, it significantly reduces the risk that contaminants will find their way into the public water supply system.

The other distances presented in the options do not align with the regulations that prioritize public health and safety, which is primarily why 10 feet has been established as the standard distance.