Bill > SB264

This bill establishes new requirements for public water systems to control and prevent waterborne diseases, particularly those caused by Legionella bacteria. It mandates that by January 1, 2026, all public water systems must maintain a detectable level of disinfectant residual, specifically at least 0.5 milligrams of free chlorine per liter or 1.0 milligram of monochloramine per liter, and conduct regular testing to ensure these levels are present throughout the system. The bill also requires suppliers of water to provide timely written notice to customers about any disruption in the water distribution system that could increase Legionella bacteria levels, detailing potential health effects and preventative measures consumers can take. Furthermore, by October 1, 2027, the Department of the Environment and the Department of Health are tasked with adopting regulations to address nitrification plans for systems using monochloramine and monitoring during construction, and they may also propose stricter disinfectant or testing requirements to combat Legionella. The bill also requires owners or operators of "covered buildings," defined by specific industry standards (ASHRAE Standard 188-2018), to implement water management programs to minimize Legionella growth by October 1, 2027. Finally, by October 1, 2027, and annually thereafter, the Department of the Environment and the Department of Health will report to the Governor and General Assembly on Legionnaires' disease cases, violations of these new regulations, and recommendations for further legislative action to control waterborne pathogens.

Education

https://mgaleg.maryland.gov/mgawebsite/Legislation/Details/SB0264?ys=2026RS