EPA Region 6 announced that it will not reissue a NPDES general permit for the final beneficial reuse or disposal of municipal sewage sludge in Louisiana.

EPA Region 2 determined that adequate facilities for the safe and sanitary removal and treatment of sewage from all vessels are reasonably available for the New York State areas of the Long Island Sound.

EPA withdrew the federal aquatic life water quality criteria applicable to certain waters of the Great Lakes system in Wisconsin in favor of state-designated criteria. 

EPA released a final report entitled, Aquatic Ecosystems, Water Quality, and Global Change: Challenges of Conducting Multi-Stressor Vulnerability Assessments.

EPA announced the establishment of a federal Underground Injection Control Class VI Program for carbon dioxide geologic sequestration wells. 

United States v. Links at Columbia, LP, No. 2:11-cv-04232-NKL (W.D. Mo. Aug. 31, 2011). Settling CWA defendants that violated NPDES stormwater permit requirements at a residential development in Columbia, Missouri, must pay a $430,000 civil penalty. 

The Bureau of Ocean Energy Management, Regulation, and Enforcement increased the maximum daily civil penalty assessment for OCSLA violations to $40,000 and the maximum daily civil penalty assessment for violations of its financial responsibility regulations to $30,000.

EPA approved 11 alternative testing methods for use in measuring the levels of contaminants in drinking water.

United States v. Winchester Municipal Utilities, No. 06-102-KSF (E.D. Ky. Jan. 19, 2011). Under a modified 2007 consent decree, a settling CWA defendant responsible for stormwater runoff pollution into the Lower Howards Creek Watershed must spend $203,000 on a watershed management plan that replaces the original supplemental environmental project.

United States v. City of Evansville, No. 3:09-CV-128 (S.D. Ind. Jan. 6, 2011). A settling CWA defendant responsible for violations in the operation of its municipal wastewater and sewer system must pay a $420,000 civil penalty to the United States and a $70,000 civil penalty to Indiana, must spend an estimated $4 million to connect homes with failing septic systems to the city's sewer system, and must remedy the deficiencies in the sewer system at a cost that may exceed $500 million no later than 2037.