Mr. Erickson has nearly four decades of experience in environmental remedial investigations and remedial action plans, solid waste facility engineering and monitoring, and water resources engineering and hydrogeology. Mr. Erickson has planned, conducted, and managed investigations related to groundwater and soil contamination, hydrogeology, and watershed hydrology. His technical expertise includes groundwater and contaminant transport modeling, geochemistry, statistical methods in hydrogeology and groundwater monitoring, and aquifer testing. He has extensive experience in permitting, design, construction, monitoring, and closure of a variety of hazardous and non-hazardous solid waste landfills, waste impoundment lagoons, processing plants, and transfer stations.