salt water incursion en Salt water moving up Mississippi River <p style="color: rgb(51, 51, 51); font-family: Verdana, Helvetica, Arial, sans-serif, Geneva; font-size: 11px; line-height: 15px; ">With the Mississippi River running at low levels, salt water is moving up from the Gulf of Mexico.</p> Mon, 16 Jul 2012 17:11:56 +0000 The Associated Press 15856 at