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 public database of disruption records and developing guidelines for compliance investigations, including penalties for non-compliance.

Additionally, the bill mandates that building owners, especially in healthcare facilities and those housing vulnerable populations, implement water management programs to reduce Legionella growth. The DOH is tasked with investigating reported cases of Legionnaires' disease and providing testing information to affected individuals. The legislation also calls for a public awareness campaign to educate consumers about the risks associated with Legionella bacteria. Overall, the provisions of this act are set to take effect immediately upon passage, emphasizing the importance of public health and safety in relation to water quality.