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.

FY 2018 State UIC Injection Well Inventory(18 K)  The file is an Excel spreadsheet with state-specific injection well information.

FY 2018 Tribal UIC Injection Well Inventory(22 K)  The file is an Excel spreadsheet with tribe-specific injection well information.