What distance is required between an on-site sewage facility and a slope where seepage may occur?

The requirement for maintaining a distance of 25 feet between an on-site sewage facility and a slope where seepage may occur is based on the need to protect groundwater quality and public health. This distance helps to ensure that any potential contaminants from the sewage facility do not migrate into the groundwater, which could happen if the facility is located too close to a slope where water could easily run off and carry pollutants with it.

The 25 feet distance is a standard in many regulations because it allows for adequate buffering. This distance helps to mitigate the risks associated with potential oversaturation or a leak, which might lead to sewage entering surface water or groundwater. Furthermore, this regulation takes into account the dynamics of surface water movement and soil absorption, making it an important consideration in the design and implementation of on-site sewage facilities.

By implementing such a buffer zone, it promotes greater environmental protection and sustainability, thereby safeguarding both human health and the ecosystem from possible contamination and degradation.