An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Underground Injection Control (UIC)

UIC Permit for McArthur River Field Trading Bay Unit, Cook Inlet, Alaska

Below is EPA's underground injection control (UIC) permit for the McArthur River Field Trading Bay Unit, Cook Inlet, Alaska. The permit authorizes injection of non-hazardous industrial waste using up to two Class I injection wells.

Permit number: AK1I005-B
Effective dates: October 19, 2015 to October 18, 2025
Current operator: Hilcorp Alaska, LLC

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