Eric Tollefsrud is a Principal Hydrogeologist based in Minnesota with more than 30 years of environmental consulting experience focused on the characterization and remediation of soil, soil vapor, and groundwater contamination at industrial and commercial properties.
With expertise in complex site characterization and environmental remediation projects, Eric uses state-of-the-practice technologies to help clients make better informed decisions regarding the remediation of contaminated property. His clients rely on him to help them plan remediation strategies that are successful and to deliver high-quality, responsive teams for their projects. He combines his expertise in the fate and transport of contaminants in the subsurface environment and the regulatory framework governing remediation to manage complicated remediation projects for his clients.
Eric’s recent project work has included serving as technical lead and project director for Resource Conservation and Recovery Act (RCRA) corrective action and State Superfund sites involving the characterization of chlorinated solvent plumes in groundwater and soil vapor and the remediation of soil, soil vapor and groundwater impacts using a range of remedies. His characterization work employs state of the practice tools and his remediation work includes both traditional and innovative remedies, including enhanced reductive dechlorination, in situ chemical oxidation, soil vapor extraction from long horizontal wells, monitored natural attenuation demonstrations, and groundwater extraction and treatment.
To advance the state of the practice, Eric served as a member of the Interstate Technology and Regulatory Council (ITRC) project team working on Characterization and Remediation of Fractured Rock. He has experience with the full range of the Superfund and RCRA corrective action processes, including negotiation of consent orders, preparation and implementation of quality assurance project plans (QAPPs), sampling and analysis plans, feasibility studies, and remedy performance evaluations. Eric was president of the Minnesota section of the American Institute of Professional Geologists (AIPG) in 2010 and has served as a technical editor for the Minnesota Groundwater Association (MGWA) since 2005.