Lake Lotawana: toxic algae advisories
Lake Lotawana, Missouri.
What the state's records say
Reports on file, with no advisory level the state has classified.
That reflects what the state knew on that date. It is not a finding that the water is safe now: blooms can return within days, and many are never reported.
Before you go, check the state's official algae page and any signs posted at the water.
Dogs at Lake Lotawana
The state has reports on file for Lake Lotawana but has not classified an advisory level, so the records cannot answer this. Keep your dog out of discolored or scummy water.
Satellite estimate (not an advisory)
No satellite reading on file for Lake Lotawana in recent weeks. Clouds, ice, or a lake shape the satellite's estimate near its center misses can cause this. It is a gap in the data, not a reading.
This is a satellite estimate from the U.S. EPA's Cyanobacteria Assessment Network, not an advisory. It estimates how much cyanobacteria is in the water near the lake's center, not whether toxins are present: a high number does not mean toxins, and a low one does not mean there are none. It covers lakes of about 1 square kilometer and larger, so small ponds, dog parks and most rivers are not covered, and clouds can hide a lake for weeks. It never changes the advisory status above.
Satellite estimates: U.S. EPA Cyanobacteria Assessment Network (CyAN), from Copernicus Sentinel-3 data. Provisional, research-level estimates; EPA does not endorse this site. Checked Oct 22, 2026.
Reported spots
The state records each report at a spot, such as a beach or a boat ramp. Each spot's latest deciding record:
| Spot | Status |
|---|---|
| Lake Lotawana | Reports on file, with no advisory level the state has classified. |
Advisory history
Every case the state has published for Lake Lotawana, newest first. Each case carries its current status code; the label beside it is this site's reading of the code.
| Date | Spot | State's level | Notes |
|---|---|---|---|
| Jul 2, 2022 | Lake Lotawana | Blank in the state's file | Case closed. |
Source
Missouri data: Missouri Department of Natural Resources, Harmful Algal Bloom response map. Status codes are the department's; their plain-English labels here are this site's reading of the codes. The state's data. An advisory ends only when the department records a dissipation date. A closed case without one is not read as an end.
Required by the State of Missouri:
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