What is the minimum horizontal distance a sanitary sewage treatment system must be from a permanent storm water retention pond?

The minimum horizontal distance a sanitary sewage treatment system must be from a permanent storm water retention pond is established in order to protect the integrity of the sewage treatment system and ensure public health and environmental safety.

Choosing a distance of 50 feet from the flood pool elevation of the retention pond is appropriate because it allows for adequate separation to minimize the risk of contamination due to potential flooding or overflow from the pond. This distance helps to prevent any potential leachate from the sewage system from migrating into the storm water management area, thus protecting water quality.

In contrast, smaller distances may not provide sufficient buffer against the possibility of sewage pollutants entering the storm water system, leading to water quality issues. Greater distances, while potentially safer, may not be necessary as regulations are established with practical considerations in mind for both land use and environmental protection. Therefore, maintaining a separation of 50 feet is seen as a balanced approach to safeguard water resources while allowing for appropriate land use.