The one-acre Circuitron site is a former electronic circuit board manufacturing facility in East Farmingdale, Suffolk County, New York. Surrounding land use is industrial. From 1961 to 1986, circuit board manufacturing operations including metal plating were conducted onsite. Several onsite areas were used for discharge of process-generated wastes including one authorized and two unauthorized leaching pools. Circuitron remediated only one unauthorized leaching pool under the building and installed monitoring wells. In 1989, EPA removed 20 waste drums and contaminated debris from inside the building and three above-ground tanks from the rear of the building, and emptied two underground storage tanks. The selected remedial action for the site includes treating highly VOC-contaminated soil in the southwest corner of the site using in-situ vapor extraction; treating emissions using carbon adsorption and disposing of any spent carbon residuals offsite; excavating contaminated soil, sediment, and debris from the leaching pools, cesspools, and storm drains inside and outside of the building; incinerating these materials offsite, with offsite disposal of any residuals; decontaminating the building by vacuuming.