This Sept. 14, 2020 photo shows shows a Duke Energy natural gas-fired electric power plant on Sutton Lake in Wilmington, N.C. It went online in 2013 and replaced a coal-fired plant that had polluted the lake with coal ash. It would provide a source of steam to generate electricity and a place to cool hot water from an adjacent coal-fired plant. Sutton Lake became popular with boaters and anglers, yielding bass, crappie, bluegill and other panfish. But environmental groups challenging the Trump rule in court say it opens up reservoirs like Sutton Lake to similar abuse.