In the spring of 1999, construction was completed on the expansion of the Science and Technology Building.  The addition to the building was designed to enhance the experience of graduate and undergraduate environmental engineering programs.  The new space included a pilot lab, air quality labs, and two research labs.  The new space would also add more faculty office space, as well as a seminar room.  The addition created a new partnership between Penn State Harrisburg and the Department of Environmental Protection.