Harmful Algal Bloom (HAB) Reporting and Contact Information

The Louisville District monitors and responds to HABs in coordination with state agencies. To report HABs, or for current HAB advisories and other HAB information, please see the applicable state websites and contact information listed below.


Kentucky - Kentucky Division of Water (KDOW)

HAB homepage: https://eec.ky.gov/Environmental-Protection/Water/Monitor/Pages/HABS.aspx

Current advisories: https://www.arcgis.com/apps/webappviewer/index.html?id=b4cecafe06ee4e9187b5bc4589006e1e/

Contact KDOW at 502-564-3410


Indiana - Indiana Department of Environmental Management (IDEM)

HAB homepage: https://www.in.gov/idem/algae/

Current advisories: https://www.in.gov/idem/algae/indiana-reservoir-and-lake-sampling-update/

Contact IDEM at 1-800-451-6027 ext. 24464


Ohio - Ohio Environmental Protection Agency (Ohio EPA)

HAB homepage: https://epa.ohio.gov/hab-algae#147745365-advisories

Current advisories: http://publicapps.odh.ohio.gov/beachguardpublic/

Contact Ohio EPA at 614-644-2160


Ohio River - Ohio River Valley Water Sanitation Commission (ORSANCO)

HAB Homepage: https://www.orsanco.org/programs/harmful-algae-blooms/

Contact ORSANCO at 513-231-7719


To report potential HAB-related illnesses, please contact the Poison Control Center at:



NOTICE: All data contained herein is preliminary in nature and therefore subject to change. The data is for general information purposes ONLY and SHALL NOT be used in technical applications such as, but not limited to, studies or designs. All critical data should be obtained from and verified by the United States Army Corps of Engineers, Louisville District, Water Quality Team, Louisville, KY 40202. The United States of America assumes no liability for the completeness or accuracy of the data contained herein and any use of such data inconsistent with this disclaimer shall be solely at the risk of the user.

Water Quality


HAB Photos