No-Discharge Zones (NDZ)
A No Discharge Zone (as defined by the EPA) is an area of water where discharge of waste from marine toilets is prohibited. A state with concurrence from EPA may choose to take this action if the state determines that the protection and enhancement of the quality of the specified waters require greater environmental protection than current federal standards allow.
Final Federal Register Notice of NDZ
Currently, North Carolina has the following no-discharge zones: New Hanover, Brunswick, and Pender Counties and Lake Wylie. Within these three counties, any waterbody with a salt water classification (SA, SB, or SC) is an NDZ except for the Cape Fear River above Snow's Cut. Additionally, the area extending three miles out into the ocean, from these counties, is also an NDZ.
New Hanover County (excluding the Cape Fear River); Effective Feburary 22, 2010
Lake Wylie; Effective March 4, 1999