Which of the following is a common problem with mound soil absorption systems if not properly designed?

A common problem with mound soil absorption systems that can occur if they are not properly designed is insufficient effluent treatment. This is critical because mound systems are designed to treat wastewater through the soil, allowing for the natural removal of contaminants before the effluent reaches the groundwater or surrounding environment.

If the system is improperly designed—whether due to inadequate selection of soil type, incorrect sizing of the mound, or insufficient consideration of hydraulic loading rates—this can lead to ineffective treatment. As a result, higher concentrations of pollutants may remain in the effluent, potentially contaminating groundwater and causing environmental hazards or public health issues.

The proper design ensures that the effluent has enough contact with the soil and the necessary microbial activity to effectively break down contaminants. Thus, insufficient effluent treatment can pose significant risks and requires careful attention during the planning and installation stages of mound systems.