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More than 50 Percent of Tested U.S. Rivers, Lakes, and Ponds Heavily PollutedResearch shows that more than 50% of tested U.S. rivers, lakes, and ponds heavily polluted. Report finds EPA has “neglected its duty” under the federal Clean Water Act.More than 700,000 miles of America’s rivers, streams and creeks and more than 11 million acres of lakes, ponds and re...