Requires owners of certain buildings to test drinking water for Legionella bacteria.

This bill requires owners of specific buildings - including hospitals, nursing homes, assisted living facilities, public housing, and other multi-occupant properties - to test their drinking water annually for Legionella bacteria. Testing must be performed by a Department of Environmental Protection (DEP)-accredited lab using DEP-developed best practices, with results submitted to the DEP. If Legionella levels exceed the DEP's established standard, owners must immediately notify residents and begin remediation within 30 days, completing it within six months, followed by retesting to confirm resolution. Violations would be treated as breaches of the Safe Drinking Water Act, potentially resulting in civil penalties up to $25,000 per incident.