Surface water

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As surface water is water denotes that openly and unattached to the earth's surface is. These include surface waters such as rivers or lakes (see also receiving waters ) and rainwater that has not yet seeped away or has run off into receiving waters (see also puddles ) . The opposite of surface water is groundwater .

Surface water is often rich in suspended solids or solutes . Since both the suspended particles and the solution cargo pollutants may contain surface water is in principle only after treatment as drinking or industrial water used for industrial purposes.

A categorization of the different surface waters and their system is defined in an EU regulation. It differentiates between: rivers, lakes, transitional waters and coastal waters.

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