A company based in Marblehead was charged on Jan. 7 in federal court with dumping sewage into North Shore waters from a popular ferry it operates out of Salem. United States Attorney Carmen M. Ortiz, Rear Admiral J. L. Nimmich, United States Coast Guard, Commander, First Coast Guard District and William Schenkelberg, Special Agent in Charge of the Northeast Region of the Coast Guard Investigative Service, announced today that The Rockmore Company, Inc. was charged in a Criminal Information with two violations of the Rivers and Harbors Act arising out of its practice of dumping human waste into local waters. The Information alleges that, from 1990 to 2006, the company has operated a 59-ft long passenger vessel named the P/V Hannah Glover based in Salem.