Waters of the United States 40 CFR 230.3(s) (4) All impoundments of waters otherwise defined as waters of the United States under this definition; (4) All impoundments of waters otherwise defined as waters of the United States under this definition; (5) Tributaries of waters identified in paragraphs (s)(1) through (4) of this section; (5) Tributaries of waters identified in paragraphs (s)(1) through (4) of this section; (6) The territorial sea; (6) The territorial sea; (7) Wetlands adjacent to waters (other than waters that are themselves wetlands) identified in paragraphs (s)(1) through (6) of this section; waste treatment systems, including treatment ponds or lagoons designed to meet the requirements of the Clean Water Act (other than cooling ponds as defined in 40 CFR 423.11(m) which also meet the criteria of this definition) are not waters of the United States.
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