What is the maximum length for individual conventional lateral trenches?

The maximum length for individual conventional lateral trenches is typically set at 200 feet. This limit is primarily based on engineering and public health considerations, aiming to ensure efficient wastewater treatment and absorption by the soil. Longer trenches could result in reduced soil absorption capacity, which may lead to issues such as sediment buildup and slower percolation rates.

Maintaining the 200-foot maximum helps to optimize the performance of the septic system, ensuring that the effluent is properly treated before being released into the soil and minimizing the risk of system failure or environmental contamination. This length offers a balance between sufficient area for effluent distribution and the practical concerns of managing a septic system effectively.