Brad Cross, Senior Vice President and Principal Hydrogeologist, is a National Expert involved in hazardous waste investigation, soil and groundwater characterization and remediation, environmental assessment, regulatory compliance, and groundwater resource evaluation. With more than 25 years of experience in the environmental consulting field, he is experienced in field investigative methods, data analysis, remediation, litigation support and expert witness testimony, project management, and reporting. Specific areas of expertise include hydrogeology, stratigraphy and sedimentology, and geophysics with a focus on high-resolution site characterization methods.