
WASHINGTON — The Trump administration on Thursday announced the repeal of a major Obama-era clean water regulation that had placed limits on polluting chemicals that could be used near streams, wetlands and other bodies of water.
The rollback of the 2015 measure, known as the Waters of the United States rule, adds to a lengthy list of environmental rules that the administration has worked to weaken or undo over the past two and a half years. Those efforts have focused heavily on eliminating restrictions on fossil fuel pollution, including coal-fired power plants, automobile tailpipes, and oil and gas leaks, but have also touched on asbestos and pesticides.