Quality Geophysics has successfully applied shear and compressional geophysical methods to sites that require an assessment of engineering properties in the subsurface. The dynamic moduli can be fully calculated after measuring these two geophysical properties onsite. Given measurements of seismic velocities and an estimate of soil density, Quality Geophysics can calculate the poisson ratio, shear modulus, Youngs modulus and bulk modulus for a site. These critical properties can be applied to significant engineering projects with ease.