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On August 31, 2009, the U.S. Environmental Protection Agency published in the Federal Register a supplement to EPA's ``Federal Requirements Under the Underground Injection Control (UIC) Program for Carbon Dioxide (CO2) Geologic Sequestration (GS) Wells'' of July 25, 2008. EPA's supplement presents new data and information, and requests public comment on related issues that have evolved in response to comments on EPA's original proposal. EPA's supplement contains preliminary field data from the Department of Energy-sponsored Regional Carbon Sequestration Partnership projects, the results of GS-related studies conducted by the Lawrence Berkeley National Laboratory, and additional GS-related research. EPA's supplement also discusses comments and presents an alternative the Agency is considering related to the proposed injection depth requirements for Class VI wells. Comments on EPA's supplement must be received on or before October 15, 2009. EPA says that it does not plan to extend this comment period. |