The W.L. Cummings Radium Processing Co. conducted
radium enrichment processing for medical research at their facility on Austin Avenue from 1915 to 1920. The operations created radioactive waste of a sandy material called
tailings. Building contractors used the tailings in mortar for the construction of walls and foundations in houses and businesses built nearby. The
U.S. Environmental Protection Agency (EPA) checked thousands of properties in a 12.5 mile radius of the original contaminated site through usage of a van loaded with radiation detection instrumentation. The EPA discovered 40 residential properties in Lansdowne and nearby East Lansdowne, Upper Darby, Aldan, Yeadon and Darby contaminated with radium,
thorium,
radon and
asbestos. In 1995, the EPA and the
U.S. Army Corps of Engineers partnered to conduct clean-up operations which included dismantling the contaminated W.L. Cummings warehouse, removal of contaminated soil and rebuilding 11 homes. A five-year review conducted by the EPA in 2000 concluded that the clean-up has been effective. Following clean-up activities, the site was removed from the
Superfund list in 1991. ==Transportation==