Design plans might come with a soil and site evaluation report attached to the plans. The installer should have at least minimum knowledge of soil colors and texture to differentiate between topsoil, subsoil and parent materials. Additionally, the installer should be able to differentiate between fine-textured soils (clays and silts), medium-textured soils (sandy loams, silt loams), and coarse-textured soils (loamy sand, sand).
Soil morphology reports help the installer verify during installation that the bottom of the soil treatment area is in the soil horizon specified in the design. The soil in the soil treatment area, particularly at the infiltrative surface, is
