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Superfund Research Program
February 2015 We are at a crossroads when it comes to reducing the risk of adverse health outcomes from arsenic in private well water in the United States, according to Yan Zheng, Ph.D., professor at the City University of New York and community engagement leader at the Columbia University Superfund Research Program (CU SRP), and Joseph Ayotte, P.G., a U.S. Geological Survey hydrologist.