Bay, Katama Bay, and Poucha Pond, all salty. While the island has continually faced shifting coastlines due to ocean currents, storm surges, and astronomical tides, the 21st century has presented new erosion challenges, particularly to Wasque Point which, during the Patriots' Day Storm of 2007, was battered severely. Between 2007 and 2013, approximately of land were lost at Wasque, where currents eroded bluffs, swallowed Swan Pond, damaged shoreline trails, and threatened a residence. Chappaquiddick is located at . The United States Census Bureau defines it as Block Group 1, Census Tract 2003 of Dukes County, Massachusetts. It has 15.915 km² (6.145 sq mi) of land. Administratively, it is part of the town of Edgartown and Dukes County. The Occasional Island Population As of the census of 2010, there were 179 people residing on the island. The racial makeup was 93.3% White, 1.7% African American, 0.6% Native American, 0.6% Asian, and 1.7% from two or more races. Hispanic or Latino of any race were 2.2% of the population. Socially, its residents form a tight-knit community and see themselves as distinctly separate from the rest of Edgartown. Longtime residents speak of "going to the mainland" when they travel to Edgartown and of "going to America" when (for example) they travel to Boston or Cape Cod. Access to the island is served by privately owned barge-like ferries named the On Time II and On Time III which shuttle pedestrians, bicycles, and up to three cars at a time between Chappaquiddick and Edgartown, on Martha's Vineyard. Two ferries run during the summer months and one during the off-season. Oversand access is possible with four-wheel drive vehicles on the south shore when the islands are connected and conditions permit. Ted Kennedy incident Chappaquiddick Island gained international attention on July 19, 1969, when the body of Mary Jo Kopechne was discovered inside an overturned Oldsmobile 88 off Dike Bridge in Poucha Pond. The car belonged to U.S. Senator Ted Kennedy, who claimed that he had taken a wrong turn and accidentally driven it off a bridge late the previous night. He did not report the accident to the police for ten hours. A January 1970 judicial inquest into Kopechne's death found that Kennedy's turn toward the bridge was intentional, and he operated his car in a manner "at least negligent and possibly reckless". A grand jury investigation was held in April 1970; no indictments were issued.