This document contains presentations from a public meeting and webinar on revisions to the fourth Unregulated Contaminant Monitoring Rule (UCMR 4) held in June 2014.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Public Meeting and Webinar: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Meeting Presentations (PDF)(103 pp, 1 MB, June 25, 2014, EPA 815-A-14-001)