This document contains presentations from a webinar on the proposed fourth Unregulated Contaminant Monitoring Rule (UCMR 4) held in January 2016.
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 Webinar: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Meeting Presentations (PDF)(51 pp, 2 MB, January 2016, 815-R-16-001)