EPA seeks public comment on proposed rulemaking to address water quality conditions affecting aquatic resources in the San Francisco Bay/Sacramento-San Joaquin Delta Estuary in California.

EPA determined that perchlorate meets the SDWA's criteria for regulation as a contaminant.

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

EPA finalized amendments to certain renewable fuel standard program regulations that took effect July 1, 2010, based on consideration of comments received.

EPA established annual percentage standards under CAA §211(o) for cellulosic biofuel, biomass-based diesel, advanced biofuel, and renewable fuels produced or imported in calendar year 2011.

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.

In re Caribbean Petroleum Corp., No. 10-12553 (KG) (Bankr. D. Del. May 20, 2011). Settling CERCLA, CWA, Oil Pollution Act, and RCRA defendants responsible for violations at a petroleum distribution terminal in Bayamón, Puerto Rico, must provide the United States with general unsecured claims totaling $18,725,130 and must pay $8,200,000 in U.S. response costs and penalties.

United States v. Town of Greenwich, No. 3:11-CV-00674-RNC (D. Conn. Apr. 27, 2011). A settling CWA defendant that made unauthorized discharges from its wastewater collection system in violation of its NPDES permit must pay a $200,000 civil penalty, must rehabilitate a section of the Old Greenwich Common Force Main, must evaluate the need to replace other sections of the force main, and must pay additional penalties and replacement costs for any future ruptures.