Environmental Protection Agency August 31, 2009 – Federal Register Recent Federal Regulation Documents
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Extension of Public Comment Period: Second External Review Draft Integrated Science Assessment for Particulate Matter
The EPA is announcing an extension of the public comment period for the draft document titled, ``Integrated Science Assessment for Particulate MatterSecond External Review Draft'' (EPA/600/R-08/ 139B and EPA/600/R-08/139BA). The document was prepared by the National Center for Environmental Assessment (NCEA) within EPA's Office of Research and Development as part of the review of the national ambient air quality standards (NAAQS) for particulate matter.
Federal Requirements Under the Underground Injection Control (UIC) Program for Carbon Dioxide (CO2
Today's Notice supplements the proposed ``Federal Requirements Under the Underground Injection Control (UIC) Program for Carbon Dioxide (CO2) Geologic Sequestration (GS) Wells'' of July 25, 2008, presents new data and information, and requests public comment on related issues that have evolved in response to comments on the original proposal. This Notice 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. Today's Notice also discusses comments and presents an alternative the Agency is considering related to the proposed injection depth requirements for Class VI wells.
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