mixing zone

The term mixing zone means a limited volume of water serving as a zone of initial dilution in the immediate vicinity of a discharge point where receiving water quality may not meet quality standards or other requirements otherwise applicable to the receiving water. The mixing zone should be considered as a place where wastes and water mix and not as a place where effluents are treated.

Source

40 CFR § 230.3

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Scoping language

For purposes of this part, the following terms shall have the meanings indicated:

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