Which soil type includes loamy coarse sands and loamy medium sands?

The correct choice reflects a specific classification within soil types that encompasses loamy coarse sands and loamy medium sands. These soil types typically exhibit balanced proportions of sand, silt, and clay, making them fertile and well-draining yet retaining adequate moisture for plant growth.

Loamy coarse sands and loamy medium sands are recognized for their physical properties that include good drainage and aeration, which are vital for the proper functioning of septic systems. This allows for effective filtration and absorption of effluent, ensuring that the system operates efficiently and minimizes environmental impact.

In contrast, other soil types may not possess the favorable balance of texture and drainage properties required for optimal septic performance. Hence, identifying the distinction between these soil types is crucial for septic design and installation compliance with regulatory standards.