The former downtown convention center was demolished to make room, in part, for the new convention center which covers an area of approximately three city blocks. The building design included below-grade construction in areas where subsurface soil and groundwater contamination was present from various sources, including an old manufactured gas plant, leaking underground storage tanks (USTs), former dry-cleaning facilities, automotive repair and industrial facilities, as well as other historical land uses. Mid-Atlantic provided turn-key environmental support services for the construction including the removal of USTs and contaminated media (soil and groundwater) encountered during site construction activities. Mid-Atlantic constructed a portable system to treat contaminated water from the drilling of the building’s foundation system in accordance with City of Raleigh and NPDES permit requirements. The system includes a sediment removal, carbon canister and air stripper system to treat contaminated groundwater. Our remedial construction services required extensive coordination with the general contractor, site grading and construction contractors, as well as the City of Raleigh and their consultants and engineers.