Tests completed on Wednesday, October 7, indicate that the water quality at Davis Island Beach does not meet the recreational water quality criteria for Enterococcus bacteria recommended by the Florida Department of Health.
For media inquiries:
Claire Maher • Claire.Maher@FLHealth.gov • 813-559-4065
DOH-Hillsborough Cautions About Blue Green Algae at Bayport Canal
September 18, 2026
DOH-Hillsborough cautions the public of the presence of blue-green algae in Bayport Canal (private canal) on September 17, 2026. Water sample testing is underway. Blue-green algae have the potential to produce toxins.
DOH-Hillsborough Issues Blue Green Algae Health Alert for Lake Thonotosassa
September 18, 2026
DOH-Hillsborough has issued a health alert for the presence of harmful blue-green algae toxins in Lake Thonotosassa. The alert is in response to a water sample taken on September 14.
Tests completed on Tuesday, September 15, indicate that the water quality at these locations does not meet the recreational water quality criteria for Enterococcus bacteria recommended by the Florida Department of Health.
DOH-Hillsborough Cautions About Blue-Green Algae at Lake Thonotosassa
September 16, 2026
Water sample testing is underway. Since environmental conditions can change at any time, it is important to exercise caution, even if presence of toxins has not yet been confirmed.
DOH-Hillsborough Issues Rabies Alert
September 14, 2026
DOH-Hillsborough Issues Water Quality Health Advisory for Bahia Beach
September 11, 2026
Tests completed on Wednesday, September 9, 2026, indicate that the water quality at Bahia Beach does not meet the recreational water quality criteria for Enterococcus bacteria.
Follow-up water samples did not detect algae toxins, indicating the public may resume water-related activities.
Tests completed on August 19 indicate that the water quality at Bahia Beach does not meet the recreational water quality criteria for Enterococcus bacteria recommended by the Florida Department of Health.
The update is being issued due to an eighth confirmed human case of locally-acquired dengue fever.