The former Litton Systems Inc. site is located on approximately 70 acres at 4811 W. Kearney St. in Springfield, just east of the Springfield-Branson National Airport. From the 1960s to 2007, the site was used to manufacture printed circuit boards. In 2001, Northrop Grumman Corp. acquired the site from Litton Systems Inc. The facility was demolished in 2008, and is now a vacant lot with only the concrete building slab remaining. The site currently is owned by Northrop Grumman Corp. Guidance and Electronics Co. Inc., a subsidiary of Northrop Grumman Corp.
While operating, the facility produced wastes containing heavy metals, predominantly copper, and volatile organic compounds (VOCs), mainly trichloroethylene (TCE), also referred to as trichloroethene. Releases of TCE into the environment during operations resulted in soil and groundwater contamination at the site and in the surrounding area. Groundwater serving private drinking water wells in the Springfield Plateau and Ozark aquifers is affected. Investigations into vapors released from soil and groundwater contaminated with volatile organic compounds, known as vapor intrusion, was detected in Fantastic Caverns, but at levels below health-based action levels. In March 2010, the department and Northrop Grumman entered into a legal order, called a consent decree, for Northrop Grumman to perform the site investigation and cleanup. The department is overseeing this cleanup through its Superfund Cooperative Program. Please review the department's Litton Systems Inc. Site - PUB2750 publication to learn more about the history of the site, investigation and cleanup activities.