All correspondence must be made through the Vendor Portal. Specifications include, but are not limited to: Perform HAZMAT investigations for INDOT projects in various stages of development, facilitate INDOT in house investigations, support sampling and reporting of Hazmat issues, produce graphics/reports/exhibits/models/technical expertise, develop remedial design in a cost effective and expedient manner for INDOT sites. Provide specialized testing, sampling, training, and reporting on all manner of Hazamat issues to include but not limited to: asbestos, lead, pcb, VOCs, vapour intrusion, spills, indoor air quality, HAZWOPER, etc. Phase I Environmental Site Assessments (ESAs), Phase II ESA, Further Site Investigation, Corrective Action Plan, Closure Report, Other hazardous materials consultation, any part or whole of any of these investigations. All investigations must follow applicable guidance: Industry standards for such work IDEM's RCG Technical guidance and Environmental Protection Agency (EPA) protocol, particularly SW-846 methodologies ASTM E-1527-13 standard. As determined by the Contract Administrator. Other environmental investigations as required. Responding firms to this RFP item shall have an environmental professional as defined by 329 IAC 9-5-5.1(b)(3) included on their staff to provide services, as needed, to meet the requirements of the scope services for this RFP item.