Injection activities have the potential to cause the movement of contaminants into USDWs. An injection activity has the potential to endanger if the presence of that contaminant may cause a violation of any primary drinking water regulation or may adversely affect human health. In such cases, the UIC Program director may impose fines, require cleanup, or close the well.
- The Regulations page presents the complete definition of endangerment, as provided in the Safe Drinking Water Act.