EPA finalized minimum requirements under the SDWA for underground injection of carbon dioxide for the purpose of geologic sequestration.

EPA established criteria for nitrogen/phosphorus pollution in the lakes, flowing waters, and springs of Florida.

EPA and the U.S. Coast Guard announced alternative arrangements under NEPA for the joint emergency temporary interim rule on the relocation of response resources for the Deepwater Horizon oil spill that will expire on December 31, 2010.

EPA removed saccharin and its salts from the lists of hazardous constituents, wastes, and substances under CERCLA and RCRA.

EPA approved revisions to North Carolina's hazardous waste management program.

United States v. Mahard Egg Farm, Inc., No. 3:11-cv-01031-N (N.D. Tex. May 18, 2011). Settling CWA defendants responsible for violations of a concentrated animal feeding operation general permit and related laws and regulations at seven of its facilities in Texas must pay a civil penalty, must take steps to bring each of its facilities into compliance, and must restore the lands to prevent future discharges to area waterways.