Colorado Underground Injection Control Program; Class VI Primacy
The U.S. Environmental Protection Agency (EPA or Agency) has received a complete Underground Injection Control (UIC) primacy application from the State of Colorado, requesting primary enforcement responsibility (primacy) for Class VI injection wells under the Safe Drinking Water Act (SDWA) section 1422. The EPA's appro
| Agency | Environmental Protection Agency |
|---|---|
| Document type | Proposed Rule |
| Published | 2026-03-19 |
| Summary | The U.S. Environmental Protection Agency (EPA or Agency) has received a complete Underground Injection Control (UIC) primacy application from the State of Colorado, requesting primary enforcement responsibility (primacy) for Class VI injection wells under the Safe Drinking Water Act (SDWA) section 1422. The EPA's approval of the State's UIC program primacy application would allow Colorado's Energy and Carbon Management Commission (ECMC) to issue and enforce compliance with UIC Class VI permits for injection wells used for geologic carbon sequestration. In this action, the EPA proposes to approve Colorado's application to implement the UIC program for Class VI injection wells located within t |
| Document number | 2026-05453 |
| Official record | https://www.federalregister.gov/documents/2026/03/19/2026-05453/colorado-underground-injection-control-program-class-vi-primacy |