What is the ideal slope for a mound’s side?

The ideal slope for a mound's side should be between 3:1 and 5:1. This range is considered optimal because it provides a balance that ensures structural stability while also promoting effective drainage and absorption of effluent. A slope within this range helps prevent erosion and also allows for proper vegetation coverage, which can assist in stabilizing the soil and enhancing the absorption process.

When the slope is too steep, it can lead to issues such as soil erosion and runoff, making it less effective in treating wastewater. Conversely, a slope that is too gentle may not provide adequate drainage, resulting in potential hydraulic overload and other performance issues with the system. Therefore, maintaining a slope within the 3:1 to 5:1 range is crucial for the functionality and longevity of mound soil absorption systems.