This bill introduces new regulations for public community water systems in New Jersey aimed at improving the safety and quality of drinking water, particularly to prevent exposure to Legionella bacteria. It defines "disruption of the public community water system" and requires operators of systems with over 100 service connections to maintain specific disinfectant residual levels. The Department of Environmental Protection (DEP) is responsible for developing best management practices to address water quality disruptions and must establish a data management system for reporting these disruptions within 24 months. Additionally, public community water systems are mandated to implement and annually certify a distribution system maintenance plan.

The bill also outlines the responsibilities of building owners and operators in managing water systems to prevent Legionella growth, especially in high-risk facilities like hospitals and nursing homes. It requires the development of water management programs, periodic water testing, and public notifications regarding Legionella exposure risks. The Department of Health is tasked with conducting epidemiological investigations for reported cases of Legionnaires' disease and ensuring public access to de-identified data. The bill establishes civil penalties for non-compliance, including fines, and empowers the Department of Health to enforce compliance through civil actions. Furthermore, it mandates a public awareness campaign about Legionella risks and requires annual reporting on Legionnaires' disease cases and water sampling results.