An official website of the United States government.

We've made some changes to 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.

Underground Injection Control (UIC)

Underground Injection Control National Technical Workgroup Charter

The UIC National Technical Workgroup (NTW) is a forum for federal and state UIC program experts to meet regularly to work through technical issues related to underground injection. The workgroup operates under a charter that establishes purpose, goals and objectives, and general operating procedures.

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