Many modern day renovations occur in facilities that were once industrial manufacturing structures. These renovations include rehabbing existing manufacturing facilities for use as offices, retail stores and living areas, as well as other non-manufacturing uses. Many of these facilities are sitting above potentially toxic and carcinogenetic plumes of contaminated groundwater or VOC-laced soil vapors trapped in the vadose zone under buildings. We are experts at performing diagnostics evaluations to aid in the design of active mitigation systems. Our design sevices also include airflow modeling around buildings to locate ideal discharge points to limit the potential for entrainment of mitigation system discharges into the building air inlet openings.