This document contains presentations from a webinar on the proposed fourth Unregulated Contaminant Monitoring Rule (UCMR 4) held in January 2016.
You will need Adobe 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)