  CL-1003/74 -- RESPONCE FROM NOS TO POWER SQUADRON;  USPS REPORTS THAT BARGE SHOWN ON CHART IS NO LONGER THERE.  LAT 38-26.5N, LONG. 76-25.8W.  THE BARGE WAS REMOVED FROM CHART AND REPLACED BY AN OBSTRUCTION IN THE SAME LOCATION. (ENTERED 3/22/05, JRS)