Mont. Environmental Quality Dept. to Formally List Big Hole River as Impaired for Eutrophication and Dissolved Oxygen
July 09, 2026
July 09, 2026
HELENA, Montana, July 9 -- The Montana Department of Environmental Quality issued the following news release:
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DEQ to formally list Big Hole River as impaired for eutrophication and dissolved oxygen
The Montana Department of Environmental Quality (DEQ) has determined aquatic life and recreational uses in the Big Hole River are affected by eutrophication, or the presence of excessive nutrients and low dissolved oxygen, and will formally list the Big Hol . . .
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DEQ to formally list Big Hole River as impaired for eutrophication and dissolved oxygen
The Montana Department of Environmental Quality (DEQ) has determined aquatic life and recreational uses in the Big Hole River are affected by eutrophication, or the presence of excessive nutrients and low dissolved oxygen, and will formally list the Big Hol . . .