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 will need Adobe 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)