Waters of the United States

All waters which are currently used, or were used in the past, or may be susceptible to use in interstate or foreign commerce, including all waters which are subject to the ebb and flow of the tide, as well as other waters such as intrastate lakes, rivers, streams, (including intermittent streams), mudflats, sandflats, wetlands, sloughs, prairie potholes, wet meadows, playa lakes, or natural ponds. These are waters where permits are required for the discharge of dredged or fillmaterial pursuant to Section 404. (US Army Corps of Engineers New York District, Regulatory Program Applicant Information Guide, 2014)