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Monitoring Unregulated Drinking Water Contaminants

Safe Drinking Water Accession and Review System (SDWARS4) Instructions for Public Water Systems and Laboratories

Assistance for Public Water Systems (PWSs) and laboratories with navigating SDWARS and completing Unregulated Contaminant Monitoring Rule (UCMR) reporting requirements through the Central Data Exchange (CDX):

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SDWARS4 Instructions (PDF)(88 pp, 7 MB, June 2018, 815-B-18-003)