020-1 Wyo. Code R. §§ 1-24 - Dissolved Oxygen
In all Class 2A, 2D and 3 waters, pollution attributable to the activities of man shall not deplete dissolved oxygen amounts to a level which will result in harmful acute or chronic effects to aquatic life, or which would not fully support existing and designated uses.
In all Class 1, 2AB, 2B and 2C waters, pollution attributable to the activities of man shall not result in a dissolved oxygen content of less than that presented on the chart in Appendix D of these regulations.
Notes
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