title: Environmentalists warn of continued threats to water supplies.
mesh_terms: D006077:Government Agencies; D013997:Time Factors; D014481:United States; D014873:Water Pollutants / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000009:adverse effects; D014881:Water Supply
chemical_list: D014873:Water Pollutants; D014874:Water Pollutants, Chemical