The 1.8-acre Rodale Manufacturing Co., Inc. site is located in Emmaus, Pennsylvania. From the 1950s to 1975, Rodale Manufacturing manufactured wiring devices and electrical connectors on site. Square D conducted similar operations from 1975 to 1986. The disposal of electroplating waste and rinse water into on-site wells contaminated groundwater with hazardous chemicals. Following cleanup, operation and maintenance activities are ongoing.