On December 7, 2011, EPA Region 6 issued a Final Underground Injection Control (UIC) Administrative Order (AO) under its authority pursuant to Section 1421 of the Safe Drinking Water Act to Wyatt Corporation located in Pawhuska, Oklahoma. The AO was issued in response to violations of failing to maintain an injection well so that it would not contaminate fresh water resources. The AO requires Wyatt Corporation to complete appropriate corrective action on the well to protect underground sources of drinking water. Wyatt Corporation must respond to EPA Region 6 within thirty (30) days after the effective date of the AO. For more information see documents, below.