KDHE HABs Historical Data

The KDHE response program has been formally tracking HABs in Kansas lakes since 2010. View a map with links to historical data by waterbody. On the map, navigate to the lake of your choosing. As you zoom in on a site, the data will be displayed in the pane on the bottom of the window. To download, select the "Options" dropdown in the bottom pane, then select "Export all to CSV".

Waterbody Advisories

In this section view county-level maps of HABs waterbody advisories issued in each year since 2010. The advisories shown here account for KDHE in-house data and do not necessarily represent advisories due to visual confirmation or outside data sources. As the understanding of Harmful Algal Blooms in Kansas has increased over time, the advisory levels for blue-green algae and microcystin have changed. The advisory threshold level for each year are listed below each county-level map.

Blue Green Algae 2020 County
Blue Green Algae 2019 County
Blue Green Algae 2018 County
Blue Green Algae 2016 County
Blue Green Algae 2017 County
Blue Green Algae 2015 County
Blue Green Algae 2014 County
Blue Green Algae 2012 County
Blue Green Algae 2013 County
Blue Green Algae 2011 County
Blue Green Algae 2010 County

Watch: Blue-green cell counts = 80K cells/mL, microcystin = 4 µg/L, or Visual Confirmation of Bloom
Warning: Blue-green cell counts = 250K cells/mL, microcystin = 20 µg/L, or Presence of Significant Cyanobacterial Surface Scum
Hazard: Blue-green cell counts = 10M cells/mL, microcystin = 2,000 µg/L

Harmful Algal Bloom Documents