Study for the North Carolina Septic Inspector Exam. Use detailed flashcards and multiple choice questions with hints and explanations. Get exam-ready today!

Multiple Choice

Which soil group is associated with Sand/Loamy Sand?

Coarse soil textures drive rapid water movement through the soil. Sand and loamy sand have large particles and big pore spaces, so they drain and infiltrate quickly. In the soil-group system used for septic design, such rapid-permeability textures are placed in the first group, indicating high permeability and fewer percolation-related restrictions. That's why Sand/Loamy Sand are associated with the first soil group. The other groups represent progressively finer textures with slower infiltration, which is why they’re not tied to these coarse textures.

Coarse soil textures drive rapid water movement through the soil. Sand and loamy sand have large particles and big pore spaces, so they drain and infiltrate quickly. In the soil-group system used for septic design, such rapid-permeability textures are placed in the first group, indicating high permeability and fewer percolation-related restrictions. That's why Sand/Loamy Sand are associated with the first soil group. The other groups represent progressively finer textures with slower infiltration, which is why they’re not tied to these coarse textures.