U.S. Coast Guard Sector San Diego recently put an end to three charter boats illegally operating in San Diego Bay, USCG officials confirmed April 14.  The three charters were shut down because of “unsafe overloading conditions, insufficient lifesaving equipment and failure to provide a qualified or licensed operator while carrying passengers for hire,” according to the USCG.   The vessels cannot operate, according to the USCG, until they can prove that they have met all valid charter requirements.  “Illegal charters are a serious risk to their passengers and to other boat operators on the water,” Coast Guard Sector San Diego Cmdr.…