Is it true that 50 percent of water sources in the US are believed to be polluted?

According to the EPA more than half of the rivers and streams in the United States are in too poor a condition for aquatic life, so yes, the statement that 50 percent of water sources in the U.S. are believed to be polluted is true, but the actual percentage may be even higher.

For more information visit http://www.upi.com/Business_News/Energy-Resources/2013/03/27/EPA-Most-US-waters-polluted/UPI-95161364386451.