Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Return to search results

Unregulated Contaminant Monitoring Program Data

Published by U.S. EPA Office of Water (OW) - Office of Ground Water and Drinking Water (OGWDW) | U.S. Environmental Protection Agency | Metadata Last Checked: July 31, 2025 | Last Modified: 2012-05-02
EPA uses the Unregulated Contaminant Monitoring (UCM) program to collect data for contaminants suspected to be present in drinking water, but that do not have health-based standards set under the Safe Drinking Water Act (SDWA). Every five years EPA reviews the list of contaminants, largely based on the Contaminant Candidate List.

Find Related Datasets

Click any tag below to search for similar datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov