; (vii) prior converted cropland; (viii) an artificially irrigated area, including a field flooded for agricultural production, that would revert to upland if the application of irrigation waters to that areas cease; (ix) an artificial lake or pond, including a water storage reservoir and a farm, irrigation, stock watering, or log cleaning pond, that is constructed or excavated in upland or in a body of water that is not otherwise described in subparagraph (A), if the artificial lake or pond is not otherwise a lake, pond, or covered impoundment; (x) a water-filled depression constructed or excavated in upland or in a body of water that is not otherwise described in subparagraph (A) that is incidental to mining or construction activity; (xi) a pit excavated in upland or in a body of water that is not otherwise described in subparagraph (A) to obtain fill, sand, or gravel; (xii) a stormwater control feature constructed or excavated in upland or in a body of water that is not otherwise described in subparagraph (A) to convey, treat, infiltrate, or store stormwater runoff; (xiii) a groundwater recharge, water reuse, or wastewater recycling structure, including a detention, retention, or infiltration basin or pond, that is constructed or excavated in upland or in a body of water that is not otherwise described in subparagraph (A); or (xiv) a waste treatment system. (C) Associated definitions In this paragraph: (i) Adjacent wetland (I) In general The term adjacent wetland means a wetland that— (aa) touches at least 1 point or side of a body of water described in clause (i), (ii), (iii), or (iv) of subparagraph (A); (bb) is inundated by flooding from a body of water described in clause (i), (ii), (iii), or (iv) of subparagraph (A) in a typical year; or (cc) is physically separated from a body of water described in clause (i), (ii), (iii), or (iv) of subparagraph (A) only by— (AA) a natural berm, bank, dune, or similar natural feature