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.

Ground Water and Drinking Water

Resource Management: Protecting your Drinking Water

This document contains an activity about using a simple mathematical model of ground water vulnerability to estimate the vulnerability of a small town's water supply.

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