Bottled water
<p>Bottled water is not necessarily more pure, or more tested, than public <a href="http://en.wikipedia.org/wiki/Tap_water" title="Tap water" >tap water</a>.<sup id="cite_ref-43" class="reference" ><a href="http://en.wikipedia.org/wiki/Drinking_water#cite_note-43" >[44]</a></sup> There is evidence that the United States federal drinking water regulations do not ensure safe water, as some of the regulations have not been updated with more recent science. Dr. Peter W. Preuss, who became the head of the U.S. EPA's division analyzing environmental risks in 2004, has been "particularly concerned", and has faced controversy in studies which suggest that regulations against certain chemicals should be tightened.<sup id="cite_ref-44" class="reference" ><a href="http://en.wikipedia.org/wiki/Drinking_water#cite_note-44" >[45]</a></sup></p>