How far must a sewage tank be from a groundwater drain located down gradient?

A sewage tank must be a minimum distance of 50 feet from a groundwater drain located down gradient. This requirement is in place to protect the groundwater from potential contamination that can occur due to leakage or overflow from the sewage tank. By maintaining this distance, the risk of pollutants migrating into the groundwater system is significantly reduced. Groundwater drains, which can include features such as wells or other drainage systems, are particularly sensitive to contamination since they directly connect to the groundwater supply that may be used for drinking water or irrigation.

The regulations aim to ensure that there is adequate separation to prevent any negative impact on water quality, which is crucial for public health and environmental safety. Hence, the 50-foot requirement serves as a best practice guideline to safeguard both human and ecological health.