Ephemeral stream

Ephemeral stream means a stream or part of a stream that has flowing water only during, and for a short duration after, precipitation and snowmelt events in a typical year. Ephemeral streams include only those conveyances with channels that display both a bed-and-bank configuration and an ordinary high water mark, and that have streambeds located above the water table year-round. Groundwater is not a source of water for streamflow. Runoff from rainfall events and snowmelt is the primary source of water for streamflow.

Source

30 CFR § 701.5

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Scoping language

As used in this chapter, the following terms have the specified meanings, except where otherwise indicated:

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