and munitions waste from an old small arms range and an explosive-ordnance demolition range. As stated in other sections of this site profile, most of the formerly-contaminated areas have been cleaned up. In addition to groundwater contamination, other potential exposures included direct contact with and ingestion of contaminants found in soil. The only known remaining soil contamination at the former base is at the landfills, which have been capped and are fenced off. Additional potential risk to human health exists due to soil vapor intrusion (SVI) into buildings by VOCs. However, this contaminant pathway has been extensively studied across the entire base, mainly in association with the FT-002 / Industrial Area Groundwater OU. Soil vapor extraction (SVE) systems were installed at 3 buildings in the industrial area of the base where concentrations of VOCs warranted mitigation and/or remediation. In addition, a large portion of the base is covered by a LUC/IC for SVI that requires either mitigation of risk or sampling and evaluation of risk prior to the construction of new buildings or modifications to or change in use of existing buildings. Any sampling and risk evaluations conducted would be reviewed by the Air Force and regulatory agencies, and continued monitoring or mitigation, as necessary, would be required. Affected property owners must also certify compliance annually with the Air Force, which also conducts annual LUC/IC inspections. See also 1968 Thule Air Base B-52 crash Operation Chrome Dome References Further reading Maurer, Maurer. Air Force Combat Units of World War II. Washington, DC: U.S. Government Printing Office 1961, 521p (republished 1983, Office of Air Force History, ). Ravenstein, Charles A. Air Force Combat Wings Lineage and Honors Histories 1947–1977. Maxwell Air Force Base, Alabama: Office of Air Force History 1984. . Mueller, Robert (1989). Volume 1: Active Air Force Bases Within the United States of America on 17 September 1982. USAF Reference Series, Office of Air Force History, United States Air Force, Washington, D.C. , External links SAC Bases: Plattsburgh AFB Marvin T. Broyhill, strategic-air-command.com., undated. Plattsburgh Barracks James P. Millard, historiclakes.org, undated 556th Missile Sites , and 114 other records for subsidiary structures Installations of the United States Air Force in New York (state) Military installations closed in 1995 U.S. Route 9 Military Superfund sites Buildings and structures in Clinton County, New York Historic American Engineering Record in New York (state) Superfund sites in New York (state) 1955 establishments in