EPA announced the availability of a final report titled, Problem Formulation for Human Health Risk Assessments of Pathogens in Land-Applied Biosolids.

EPA proposed to approve revisions to Wisconsin's hazardous waste management program; see above for direct final rule.

EPA approved negative declarations and requests for EPA withdrawal of its CAA §§111(d) and 129 plan approval for HMIWI, large municipal waste combustor (LMWC), small municipal waste combustor (SMWC), and other solid waste incinerator (OSWI) units from Florida, Kentucky, North Carolina, and South Carolina.

EPA promulgated amendments to the new source performance standards and emissions guidelines for hospital/medical/infectious waste incinerators (HMIWIs) after remand by the D.C. Circuit.

EPA withdrew rulemaking that granted a site-specific treatment variance to U.S. Ecology Nevada in Beatty, Nevada, and withdrew an existing site-specific treatment variance issued to Chemical Waste Management, Inc. in Kettleman Hills, California, due to adverse comment.

EPA approved revisions to Wisconsin's hazardous waste management program.

EPA approved Florida's plan under the CAA for implementing and enforcing the emissions guidelines applicable to existing large municipal waste combustors.

EPA approved Virginia's negative declaration and request for EPA withdrawal of its CAA §§111(d) and 129 plan approval for hospital/medical/infectious waste incinerator (HMIWI) units.

United States v. Arch Coal, Inc., No. 2:11-cv-00133 (S.D. W. Va. Mar. 1, 2011). Settling CWA defendants that discharged pollutants into waters of the United States in Kentucky and West Virginia must pay a $4 million civil penalty and must perform various injunctive relief measures.

EPA proposed to grant a petition submitted by Gulf West Landfill to delist the leachate generated at its facility in Anahuac, Texas, from the lists of hazardous wastes.