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Water: Module 3

Basic Course: Key Concepts (Module 3.c)

Criteria Purpose: Establish a Risk Threshold for the Water Body

Module 3. Criteria Development

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A water quality criterion establishes a threshold for a pollutant or condition, above or below which the designated uses for a water body may be threatened. If the criterion is exceeded, for instance, the water quality may pose a potential human health or ecological risk. In such cases, protective or remedial action may be needed.

For informational purposes only–Not official statements of EPA policy.

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