What soil permeability classification is considered Moderately Low?

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.