| Abstract |
The 500-acre Middletown Air Field site is a former military airfield located between the towns of Highspire and Middletown in Dauphin County, Pennsylvania. The site was used as an airfield by the Army/Air Force from 1918 until all onsite military operations ceased in 1966. Site features include several private manufacturing companies, an inactive landfill, and the Harrisburg International Airport (HIA). The site was divided into five distinct study areas where soil, sediment, ground water, and surface water investigations were conducted. Based on identification of onsite soil and ground water contamination, the remedial action for the site was divided into five Operable Units (OUs) that were slightly different from the study areas. The ROD provides a final remedy for OU1 through OU4, and an interim remedy for OU5, which requires additional investigations to determine contamination sources. The primary contaminants of concern affecting the soil and ground water are VOCs including TCE; other organics including PAHs; and metals including arsenic, chromium, and lead. |
