EPA proposed to issue a 90-day stay of the requirement for chemical manufacturing area sources to comply with the NESHAPs permit program; see above for direct final rule

EPA seeks public comment on its decision to allow emergency stationary engines to operate for up to 15 hours per year.

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.

EPA delegated authority to Iowa, Kansas, Missouri, and Nebraska to implement and enforce NESHAPs and new source performance and maximum achievable control technology standards.

United States v. City of Wyandotte, No. 2-11-cv-12181 (E.D. Mich. May 18, 2011). A settling CAA defendant responsible for permit violations at a power plant in Wyandotte, Michigan, must pay a $112,000 civil penalty, must perform a supplemental environmental project at an estimated cost of $210,000, and must install new emission controls and implement operational practices to reduce emissions.

United States v. City of Wyandotte, No. 2-11-cv-12181 (E.D. Mich. May 18, 2011). A settling CAA defendant responsible for permit violations at a power plant in Wyandotte, Michigan, must pay a $112,000 civil penalty, must perform a supplemental environmental project at an estimated cost of $210,000, and must install new emission controls and implement operational practices to reduce emissions.