What is a mound system?

A mound system is specifically designed to elevate the disposal area above the natural grade to improve drainage and promote effective sewage treatment. This elevated design is particularly beneficial in areas with shallow soil, high water tables, or poorly drained soils, where conventional septic systems may not function efficiently. By raising the effluent above grade, a mound system allows for better aeration and percolation of wastewater into the surrounding soil, which is crucial for the proper breakdown of contaminants and the protection of groundwater resources.

The mound itself consists of specially treated sand or soil that creates a porous medium for the wastewater to be filtered through, ensuring that it is properly treated before it enters the environment. This approach prevents surface runoff and minimizes the risk of contamination, making it a suitable option for specific site conditions that do not support standard septic systems.