The memorandum in the link provided is for UIC program managers. It promotes a consistent, predictable process for the review of aquifer exemption requests under the Safe Drinking Water Act (SDWA).
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Enhancing Coordination and Communication with States on Review and Approval of Aquifer Exemption Requests Under SDWA (PDF)(10 pp, 2 MB,
July 24,2014)
The document provides a number of steps to enhance coordination and communication between EPA regions and state UIC programs regarding proposed aquifer exemptions.