Wisconsin Mound Soil Absorption System and Area FillPractice Exam

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What is the consequence of improper plowing during construction of mound systems?

Increased soil nutrients
System failure
Enhanced drainage
Better vegetation growth

The correct answer is: System failure

Improper plowing during the construction of mound systems can lead to system failure due to several key factors related to soil structure and drainage capabilities. Mound systems are designed to manage wastewater by allowing it to percolate through a specifically engineered sand mound and into the soil. When plowing is done incorrectly, it can disrupt the natural layering and composition of the soil, which is crucial for the proper function of the mound. Soil must maintain its permeability to ensure that wastewater can be effectively treated as it passes through. If the soil structure is compacted or disturbed excessively, it can lead to reduced infiltration rates, causing the system to back up or fail to properly treat wastewater. Consequently, untreated effluent can surface, leading to environmental contamination and potential health risks. The other options, such as increased soil nutrients, enhanced drainage, and better vegetation growth, do not accurately reflect the consequences of improper plowing. In fact, the disruption to soil structure can negatively affect nutrient availability and drainage, further emphasizing the importance of proper techniques during construction.