Wisconsin Mound Soil Absorption System and Area FillPractice Exam

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What critical condition must be prevented through proper management of mound systems?

System freezing
Excessive watering
Slope erosion
Invasive species

The correct answer is: Slope erosion

The prevention of slope erosion is critical in the management of mound systems because slope stability is essential to maintaining the integrity of the soil absorption system. Mound systems are typically installed on sloping terrain to facilitate proper drainage and urine absorption by creating a raised structure. If erosion occurs, it can undermine the physical structure of the mound, leading to a collapse that could disrupt the flow of effluent and water, consequently impacting the system's efficacy in treating wastewater. Additionally, erosion can lead to a loss of soil that is integral to the system’s function, potentially exposing components of the mound to surface runoff, which could carry pollutants and affect the surrounding environment. Therefore, careful management practices such as vegetation cover, proper grading, and erosion control measures are necessary to prevent slope erosion and ensure the long-term functionality of the mound system.