When considering public health regulations, what is the minimum distance for public water supply lines from unlined evapotranspiration beds?

The minimum distance for public water supply lines from unlined evapotranspiration beds is established to protect public health by preventing potential contamination of the water supply. This distance is critical because evapotranspiration beds are often used for the disposal of wastewater, and they can contribute to the migration of pathogens and harmful substances into the surrounding soil and groundwater.

Maintaining a distance of 10 feet helps to ensure that any leachate or contaminants that could be released from the beds do not reach the public water supply lines, thereby safeguarding the quality of drinking water. This regulation reflects a standard practice in environmental health and safety, emphasizing the importance of adequate separation to mitigate risks associated with wastewater management practices.

In this context, other options may not comply with established public health regulations and could pose a higher risk of contamination. Thus, the specified distance of 10 feet has been determined as a minimum requirement to effectively reduce the risk of water supply contamination.