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.

Underground Injection Control (UIC)

UIC Injection Well Inventory

Each year, the UIC program collects inventory information on injection wells nationwide. The UIC program uses the inventory numbers in combination with other funding criteria to establish annual funding levels for programs with primary enforcement authority.   

The most recent injection well inventory information is provided in the links below.

State FY 2017 UIC Inventory Information(2 pp, 18 K)  The file is an Excel spreadsheet with state-specific injection well information.

Tribal FY 2017 UIC Inventory Information(4 pp, 21 K)  The file is an Excel spreadsheet with tribe-specific injection well information.