Specifications include, but are not limited to: Provide professional services to conduct environmental site assessments and investigations to determine the nature, extent, mitigation and management for asbestos, heavy metals, dioxins, unexploded ordnance (UXO), and other hazardous materials and chemicals. ; Conduct the required site discovery and investigation activities and work in accordance with all applicable rules and regulations including but not limited to conducting the necessary historical research, performing stakeholder interviews, prepare and implement field sampling plans, health and safety plans, quality assurance plans, collect and analyze samples to obtain the necessary data to characterize site conditions.