Wisconsin Mound Soil Absorption System and Area FillPractice Exam

What soil permeability classification is considered Moderately Low?

1. Permeable enough to absorb easily

2. Slower than moderate permeability

3. Fast enough for rapid drainage

4. Too slow for effective drainage

The correct answer is: Permeable enough to absorb easily

Soil permeability classification is crucial in understanding how well soil can absorb and drain water. Moderately low permeability refers to soils that can absorb water but at a slower rate than what would be considered moderate. The choice indicating "Slower than moderate permeability" is directly tied to this classification. Moderately low permeability means the soil does not drain quickly, allowing for some absorption but not as efficiently as soils with higher permeability. This characteristic is significant in contexts like the Wisconsin mound soil absorption systems, where the absorption capability of the soil impacts wastewater treatment and management. In contrast, choices indicating rapid or effective drainage fall outside of the moderately low category, as they imply a soil type that allows for quicker water movement. Therefore, focusing on soils that absorb water at a moderate rate provides insight into the function and design implications for absorption systems.