This bill establishes comprehensive measures to prevent and control Legionnaires' disease, involving the Department of Environmental Protection (DEP), the Department of Health (DOH), and operators of public water systems and certain buildings. Key requirements include maintaining a minimum detectable disinfectant residual of free chlorine of at least 0.3 milligrams per liter, conducting regular testing, and notifying customers of any disruptions that could elevate Legionella bacteria levels. The DEP is responsible for creating a publicly accessible database of these disruptions and developing guidelines for notification, while also establishing penalties for non-compliance.

Additionally, the bill mandates the DOH to investigate all reported cases of Legionnaires' disease and provide testing information to affected individuals. It requires specific buildings, particularly healthcare facilities, to implement water management programs to reduce Legionella growth. The bill also calls for annual reporting on Legionnaires' disease cases, the creation of a public registry of de-identified data, and a public awareness campaign to educate consumers about Legionella risks and prevention methods. Overall, the bill aims to enhance public health safety and awareness regarding Legionnaires' disease.