Evan Hansen, an environmental consultant who has testified about the leak before the West Virginia legislature, has tracked the cumulative effect of that objective throughout the government. “In the past ten or fifteen years, they’ve systematically weakened virtually all the major water-quality standards that apply to the coal industry,” he said. “One by one, there’s been a steady effort to undermine the implementation of environmental laws, to the point that it’s become a part of everyday normal life here.”