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List of Laboratories Approved by EPA for the Fifth Unregulated Contaminant Monitoring Rule (UCMR 5)

This document provides a list of laboratories that met the fifth Unregulated Contaminant Monitoring Rule (UCMR 5) laboratory approval program application and proficiency testing criteria for the methods indicated.

EPA Approved Laboratories for UCMR 5 (pdf) (551.69 KB, July 2023, 815-B-23-007)

List of Laboratories Approved by EPA for the Fifth Unregulated Contaminant Monitoring Rule (UCMR 5)

Monitoring Unregulated Drinking Water Contaminants