Frequent Questions

What does it mean when an injection well ?endangers? underground sources of drinking water?

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.
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