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Water: ucmr2

Laboratories for the Unregulated Contaminant Monitoring Rule 2 (UCMR 2)

EPA required water systems participating in UCMR 2 to use EPA-approved laboratories for the analysis of the 25 contaminants. All laboratories that reported data under UCMR 2 were approved by EPA.

  • Methods & Contaminants - List of contaminants and corresponding analytical methods
  • Reporting - Information on reporting requirements, data elements and the electronic reporting system, Safe Drinking Water Accession and Review System (SDWARS)

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