An agency official tells a Senate committee that it's possible there will be no standard set for the amount of perchlorate allowed in drinking water.A top Environmental Protection Agency official told a Senate committee Tuesday that there was "a distinct possibility" that the agency would not limit the amount of perchlorate, a toxic ingredient of solid rocket fuel, that is allowable in drinking water.
State officials and water suppliers across the nation have been waiting for the EPA to set a standard for several years because perchlorate has contaminated the water supplies of at least 11 million people. Last year, California, impatient with the EPA's indecision, set its own standard.
...
Much of the water contamination comes from military bases and aerospace plants, as well as fireworks companies.
The Pentagon and its contractors for years have been lobbying against a federal standard, saying there are no proven health effects at levels to which people are exposed, and that cleaning up perchlorate could cost billions of dollars
LA Times