Which statement is NOT part of mound site preparation?

Which statement is NOT part of mound site preparation?

• A. Cut trees flush to ground leaving stumps
• B. Remove vegetation over 6 inches long by mowing
• C. Break up the top 7-8 inches perpendicular to the slope
• D. Remove topsoil entirely and replace with imported fill

Answer: (D)

The main idea is preparing a mound site to create a stable, well-drained, and infiltration-friendly surface. Clearing vegetation and creating a smooth, but slightly textured, surface helps water percolate evenly and reduces erosion. Mowing removes tall vegetation that could interfere with the mound, and breaking up the top few inches across the slope prevents a slick, compact surface and promotes uniform infiltration. Removing the entire topsoil and replacing it with imported fill isn’t part of mound site preparation because, while you do use a controlled fill (often a clean sand or other engineered material) to form the mound, you don’t strip away all topsoil. Completely removing topsoil would disrupt the existing soil structure and vegetation that support the mound’s stability and longevity, and isn’t a standard step in preparing the site.

The main idea is preparing a mound site to create a stable, well-drained, and infiltration-friendly surface. Clearing vegetation and creating a smooth, but slightly textured, surface helps water percolate evenly and reduces erosion. Mowing removes tall vegetation that could interfere with the mound, and breaking up the top few inches across the slope prevents a slick, compact surface and promotes uniform infiltration.

Removing the entire topsoil and replacing it with imported fill isn’t part of mound site preparation because, while you do use a controlled fill (often a clean sand or other engineered material) to form the mound, you don’t strip away all topsoil. Completely removing topsoil would disrupt the existing soil structure and vegetation that support the mound’s stability and longevity, and isn’t a standard step in preparing the site.