Is surface water fresh water?
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One part of the water cycle that is obviously essential to all life on Earth is the freshwater existing on the land surface.Surface water includes the lakes, reservoirs (human-made lakes), ponds, streams (of all sizes, from large rivers to small creeks), canals (human-made lakes and streams), and freshwater wetlands.
For USGS water-use reports, surface water is considered freshwater when it contains less than 1,000 milligrams per liter (mg/L) of dissolved solids. There are three major types of surface water. Permanent (perennial) surface waters are present year round. This includes rivers, swamps, and lakes.