An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Monitoring Unregulated Drinking Water Contaminants

Presentations from the Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Methods Stakeholder Meeting on May 15, 2013

This document contains the presentations from the fourth Unregulated Contaminant Monitoring Rule (UCMR 4) stakeholder meeting held in May 2013 to discuss the Contaminant Candidate List (CCL) and the UCMR.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.