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Water Quality
Executive Director’s OfficeNorth Fork of the Virgin River Algal Bloom Monitoring 2021
See algal bloom monitoring updates for the North Fork of the Virgin River.
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Toxins from Harmful Algal Bloom Found in the N. Fork of the Virgin River in Zion National Park
Samples from the site where a dog died on July Fourth show high cyanotoxins. DEQ, the local health department and Zions National Park will continue to sample the North Fork of the Virgin and keep residents aware of potential health risks.
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E. coli Monitoring 2020
Update May 4, 2020 A health advisory remains in place for the North Fork Virgin River. Results from 2016 – 2019 monitoring continue to indicate that water quality is improving on the North Fork Virgin River. However, the National Park Service continues to educate backcountry visitors about the possible health risks associated with water contaminated …
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