We are nondestructive and geophysical testing experts with more than 700 projects across the US to our credit. Our geophysical tests assess soil and bedrock conditions to identify sinkholes, subsidence, shear zones and voiding. Our nondestructive concrete tests provide documented, cost-effective assessments of the integrity, as-built details and weakness or deterioration of concrete structures. On this page, we will share the latest news on nondestructive and geophysical testing as well as case studies. Follow us or sign up for our newsletter at ndtcorporation.com