The Environmental Protection Agency is obliged under the Clean Water Act to monitor America’s waterways and shield them from the toxic runoff from factory farms. But the growth of that industry, and its courtroom tenacity, has far outstripped the E.P.A.’s efforts to restrict runoff from manure lagoons and feedlots.

http://www.nytimes.com/2013/06/15/opinion/the-epa-backs-off-on-factory-farms.html?_r=2&