Field work will include oversight of subcontractors, including drillers and other laborers during soil boring advancement, monitoring well installation, test pit installation, excavation activities, and remedial construction activities; and sampling various media including soil, groundwater, sediment, soil vapor, and air. Complete site investigations to determine the nature and extent of contaminated soil, soil vapor, sediment, groundwater, and other media on a variety of sites, including public (parks, schools/universities, transit-related), residential, industrial.