To match Feature POTOMAC-WATER/

 
To match Feature POTOMAC-WATER/
A view of the rising water of the Potomac river in Washington, with the Kennedy Center (R) and Watergate building in the background, in this June 28, 2006 file photo. Washington is starting to dig deep in a $2.6 billion underground solution aimed at helping clean up the polluted Potomac River and ailing Chesapeake Bay, the biggest U.S. estuary. REUTERS/Yuri Gripas/Files
Tags: Water