What is the minimum distance required from a septic system downslope to groundwater lowering ditches and devices?

The minimum distance required from a septic system downslope to groundwater lowering ditches and devices is 25 feet. This distance is established to ensure proper function and to mitigate potential contamination of the groundwater. By maintaining this separation, it helps prevent the seepage of effluent from the septic system into the ditches, which could otherwise compromise the quality of groundwater. This requirement is based on health considerations and environmental protection standards, emphasizing the importance of adequate buffer zones to safeguard water resources.

The other distances provided in the options may not provide sufficient separation to protect groundwater integrity, which is a crucial aspect of septic system regulation and inspection.