Site investigations require the collection of geostratigraphic information about the soil layering and consistency, as well as a suite of soil properties and parameters for use in analytical and numerical calculations for design. The seismic piezocone test with dissipation phases (SCPTÙ) offers an optimal means to obtain up to five independent readings on soil behavior within a single sounding (q_t, f_s, u_b, t₅₀, V_s). Therefore, this test should be adopted as the minimum level of effort during geotechnical site exploration as site-specific delineation of soil strata is accomplished along with rational means to measure the in-situ small-strain stiffness and estimate strength, stress history, frictional characteristics, and permeability through site specific or global correlations.