What is a pumped effluent drainfield (PED)?

A pumped effluent drainfield (PED) is specifically designed to facilitate the distribution of treated effluent from a septic system. One of its primary functions is to manage sites where gravity flow from the septic tank to the drainfield is not feasible due to the low slope or level terrain. In these scenarios, pumping the effluent allows for adequate distribution over the drainfield, ensuring that it is spread evenly and properly treated before it percolates into the surrounding soil.

Option B accurately reflects the use of a PED in residential settings. Such systems allow for the installation of effective wastewater treatment solutions in areas where traditional gravity systems would not work, thereby broadening the types of locations suitable for single-family homes.

In contrast, other options do not apply as directly. For instance, while it is true that PEDs can be used on sites with steep slopes, this is not their primary function. They are primarily designed to manage level sites, which makes this option less relevant. The idea that PEDs are primarily for commercial applications overlooks their significant residential utility, as they are commonly used for single-family homes. Lastly, while maintaining proper vertical separation from groundwater is important for any sewage facility, a minimum of 5 feet is not a specific requirement solely for pumped