This document contains the assessment monitoring requirements for List 1 contaminants by large public water systems from the first Unregulated Contaminant Monitoring Regulation Rule (UCMR 1).
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Assessment monitoring requirements for UCMR 1 (PDF)(3 pp, 25 K, January 2001, EPA 815-F-01-003)