The 5-acre General Electric Co. (Spokane Apparatus Service Shop) site is located on Spokane, Washington. From 1961 until 1980, GE cleaned and repaired transformers and stored transformer oils and electric-related equipment on the site. Some of the equipment and transformers contained polychlorinated biphenyls (PCBs), which were released into a dry well during steam cleaning. These activities contaminated soil, groundwater and sludge with PCBs. Following cleanup, operation and maintenance activities and monitoring are ongoing.