Which type of weather condition is most likely to negatively impact a mound soil absorption system?

Heavy rain can significantly impact a mound soil absorption system due to the saturation of soil. When there is an excessive amount of rain, the soil becomes waterlogged, which can lead to reduced infiltration rates. This can overwhelm the absorption capabilities of the system, causing effluent to pool or back up, ultimately failing to properly process wastewater.

Additionally, heavy rain can lead to erosion of the mound, compromising its structure and functionality. It can also cause contaminants to be washed away or spread, posing risks to groundwater and public health. Therefore, managing the water levels in a mound system during heavy rainfall is crucial for its effective operation and to prevent system failure.