The following press release was recently issued by the Nine Mile Creek Watershed District.
Edina, Minn., Oct. 6, 2020 - WARNING - The public should avoid contact with the water in:
- Lake Cornelia
- Lake Edina
- Lake Holiday
The water contains blue-green algae at levels that could potentially cause harm. People and pets should avoid all contact with the water, scum, foam or algae.
Updated analyses of water samples from Sept. 30, 2020, on Lake Cornelia, Lake Edina, and Lake Holiday by the Nine Mile Creek Watershed District (NMCWD) show that blue-green algae numbers exceed the World Health Organization (WHO) threshold for moderate probability of adverse health effects. Sampling on Arrowhead Lake indicate that the recreational water advisory may be lifted.
High levels of blue-green algae on Lake Cornelia, Lake Edina, and Lake Holiday are a concern because this type of algae can produce algal toxins, which can pose a health threat for pets and people when concentrations become high enough. Algal toxin testing has not occurred on these waterbodies. The District will be collecting another sample from the lakes and will release updated information on algal levels on this page when it is available following the sampling event.
Always remember, when in doubt, best keep out. The District is on the look-out for suspected blue-green algae blooms in the lakes that are part of its yearly monitoring program. If you suspect a blue-green algae bloom, you can email pictures of the suspected bloom to firstname.lastname@example.org.
For more information on harmful algae blooms, you can also call the Minnesota Pollution Control Agency at 651-757-2822 or 800-657-3864. In addition, report human health effects to the Minnesota Department of Health (MDH) Foodborne and Waterborne Illness Hotline at 1-877-366-3455. For health questions, residents can contact MDH’s Waterborne Diseases Unit at 651-201-5414 or visit the MDH’s Harmful Algal Bloom web page.
For more information on blue-green algae and harmful algal blooms visit: