The Hawaii Department of Health announced on Apr. 8 the release of additional mud and sediment test results from North Shore areas impacted by recent Kona Low storms, confirming the presence of environmental and animal-associated contamination following flooding.
This update is important as it informs residents about potential health risks associated with floodwater contamination in affected communities. The department said preliminary tests found Staphylococcus aureus, Clostridium perfringens, and Leptospira in consolidated mud and sediment samples, along with previously reported E. coli, Enterococcus, and Salmonella bacteria. Hepatitis A and Campylobacter were not detected in these initial samples.
Samples were collected from three community sites where flood-carried mud was consolidated, as well as one drainage site. Tests included a range of bacteria such as Escherichia coli (E. coli), Salmonella, Enterococcus, Hepatitis A, Staphylococcus aureus, Campylobacter, Clostridium perfringens, Clostridium tetani and Leptospira. These pathogens are commonly found in floodwaters due to stormwater runoff or possible wastewater contamination; some occur naturally while others are introduced through human or animal waste.
The department noted that routine testing for these indicators is uncommon because levels can vary widely depending on conditions and location. There are no established baseline levels for comparison at this time. Additional results for Clostridium tetani, legacy pesticides and metals are still pending.
The Hawaii State Department of Health advises residents to continue following recommended precautions such as wearing protective equipment when handling mud or standing water, cleaning exposed skin thoroughly afterwards and keeping vaccinations up to date—especially tetanus shots for those working in affected areas. Individuals who develop symptoms like skin infections or gastrointestinal problems after exposure should seek medical care promptly.
More information about environmental monitoring results and safety guidance can be found at the department’s website: https://health.hawaii.gov/konalowstorm/. The agency contributes to community well-being by promoting health education on vaccination and disease outbreaks through its Disease Outbreak Control Division according to the official website. It also aims to safeguard health through prevention efforts per the official website.
The department is led by a director supported by deputy directors overseeing key programs as noted on the official website, with offices providing services across multiple islands as outlined on the official website. Public health preparedness is coordinated through its Office of Public Health Preparedness as detailed on the official website, ensuring readiness for disasters or epidemics statewide.
