Superfund Site: MATHER AIR FORCE BASE (AC&W DISPOSAL SITE), MATHER, CA
Superfund Site Profile
The U.S. Air Force built Mather Air Force Base (AFB) in 1918 to serve as a flight training school. Up to 1993, when it was decommissioned as an active air base under the Base Realignment and Closure Act (BRAC), Mather AFB's primary mission was training of military personnel. At the time of closure, the base encompassed 5,845 acres, including 129 acres of easements. Most of the base been transferred or leased to various entities, primarily Sacramento County, for reuse. Environmental investigations began at Mather AFB in 1982 and continued for several years. A total of 89 areas with significant contamination were identified. Following immediate actions to protect human health and the environment, the site’s long-term cleanup is ongoing.
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