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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Author</th> <th class="thCornerR">Message</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>cheapbag214s</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Posted: Mon 12:16, 28 Oct 2013<span class="gen"> </span> Post subject: or fracking</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">USGS says it's tough to determine what leads to aquifer pollution <br />RESTON, Va., Aug. 6 () -- It's difficult to pinpoint what and how contaminants find their way into groundwater sources used as drinking water, the U.S. Geological Survey found.The USGS said it took a close look at ways in which contaminants could make their way into wells used to provide drinking water to the public. It found in a 130-page report the characteristics of some aquifers enable contaminants to stay in or travel to groundwater more readily than others."Common sense might say that wells located near known contaminant sources would be the most vulnerable, but this study found that even where contaminant sources are similar, there are differences in public-supply-well vulnerability to contamination," Sandra Eberts, a lead USGS researcher, said in a statement Monday.USGS said it's difficult to determine which areas are more prone to contamination than others because of varying geological characteristics. USGS researchers looked at groundwater sites from California to Ohio. It said human influences like irrigation can impact aquifer conditions and some of the contaminants,[url=http://www.kbcrussia.com/]cheap true religion jeans[/url], like arsenic,[url=http://www.kbcrussia.com/]true religion jeans outlet[/url], were naturally occurring.The oil and natural gas drilling practice of hydraulic fracturing,[url=http://www.fbrecs.com/]Jimmy Choo handbags[/url], or fracking,[url=http://www.dtvtk3.com/]jimmy choo shoes sale[/url], has raised concerns about groundwater contamination. Critics say some of the chemicals used in the process could contaminate water supplies. The USGS study did not look directly at fracking.</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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