The Eastern Long Island Sound Disposal Site (ELDS) is one of three regional dredged material disposal sites located in the waters of Long Island Sound. ELDS is a 1 x 1.5 nautical mile irregularly-shaped polygon, with an area of 1.3 square nautical miles due to the exclusion of boulder and bedrock areas. Water depths in the ELDS range from approximately 59 feet (18 m) in the north to 100 feet (30 m) in the south. The seafloor at the site consists of mostly flat, sandy areas, sloping gradually from north to south. The distance from the northern site boundary to the closest point on land (Harkness Memorial State Park in Waterford, Connecticut) is 1.1 nautical miles. The distance from the southeastern corner to the Connecticut/New York state border is 0.19 nautical miles.