Guidance on sampling and mitigation measures for controlling lead corrosion. : H144-136/2024E-PDF

"Corrosion is a common issue in Canadian drinking water distribution and plumbing systems. Although there are no direct health effects linked to corrosion in distribution and plumbing systems, it may cause the release of lead and other contaminants that would be a concern for the health of people who live in Canada. This document focuses on lead as the main contaminant of concern for health. The results of lead monitoring are used as the trigger to initiate corrosion control programs to control or mitigate its release. … The intent of this document is to provide responsible authorities, for example, municipalities, with guidance on assessing corrosion and triggers for implementing corrosion control measures for distribution systems in residential settings. It also provides sampling protocols and corrective measures for multi-dwelling buildings, schools, day care facilities and office buildings. These are intended for the authorities, such as school boards, building owners or employers, that are responsible for the health and safety of the occupants of such buildings. The goal of the guidance is to minimize exposure to lead at the tap. …"--Pages 2, 3.

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