WASHINGTON — The Trump administration unveiled its plan Tuesday for a major rollback of the Clean Water Act, a blueprint drawn up at the behest of farm groups, developers and other business interests to end federal protections — or what opponents call massive government overreach — on thousands of miles of streams, tributaries and wetlands nationwide.Acting Environmental Protection Agency Administrator Andrew Wheeler said the Obama-era rule that put those waters under the protection of the Clean Water Act “further expanded Washington’s reach into privately owned lands.”“They claimed it was in the interest of water quality, but it was really about power,” he said.