Occurrence of UCMR Chemicals in Drinking Water Materials and Chemicals

Water organisations are monitoring for a wide variety of contaminants that are being reviewed for possible future regulations, as part of the Unregulated Contaminant Monitoring (UCM)¹ programme.

NSF International reviewed testing results for drinking water contact materials and treatment chemicals that had been evaluated to the requirements of NSF /ANSI 60 and 61 for the presence of these contaminants.

In some cases, it was found that these levels exceeded the allowable thresholds of the NSF standards, and therefore may contribute to compliance problems in the future.

This document discusses the main findings and issues raised by the review. It also contains an overview of hypochlorite treatment chemicals specifications in NSF / ANSI 60.

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