Requires DEP, DOH, owners or operators of certain public community water systems, and owners or operators of certain buildings or facilities to take certain actions to prevent and control cases of Legionnaires' disease.*

This bill requires public water systems to maintain a minimum free chlorine residual of 0.3 milligrams per liter at all times and conduct regular testing to prevent Legionella bacteria growth. It mandates water system operators to provide written notice to customers about disruptions that could increase Legionella risk and report such disruptions to the Department of Environmental Protection within 24 hours. Certain buildings - including hospitals, facilities treating immunocompromised individuals, buildings with spas or cooling towers, and structures over 10 stories - must implement water management programs following ASHRAE standards to minimize Legionella transmission. Building owners who fail to comply face penalties up to $2,000 for first violations and $10,000 for violations causing serious injury or death. The Department of Health must investigate Legionnaires' disease cases, develop public awareness campaigns, and publish annual reports on cases and prevention efforts.