The Crap Shoot, Is Your Neighborhood Pool Making You Sick?
The Washington City Paper tested 27 public pools in the nation's capital and 37 percent of them came up positive for bacteria that can lead to outbreaks of Cryptosporidium, Giardia, Shigella, norovirus, E. coli infection and other recreational water illnesses.
http://www.washingtoncitypaper.com/display.php?id=37705
Source: Washington City Paper, 09/19/2009