In response to a D.C. Circuit decision remanding to EPA designations for 16 counties associated with nine nonattainment areas located in seven states, the Agency reevaluated the designations with a uniform, nationwide analytical approach and revised the boundaries of two 2015 primary and secondary ozone nonattainment areas, affecting the designation status of Weld County, Colorado, and El Paso County, Texas.

United States v. Sid Richardson Carbon, Ltd, No. 3:17-cv-01792 (M.D. La. Nov. 19, 2021). A proposed amendment to a consent decree extends certain compliance deadlines for a settling defendant that violated CAA provisions at three carbon black manufacturing plants.

United States v. Hampton Roads Sanitation District, No. 2:09-cv-481 (E.D. Va. Nov. 22, 2021). A proposed fifth amendment to a 2010 consent decree builds upon previous amendments to provide for phased implementation of the settling CWA defendant’s proposed regional wet weather management plan; makes conforming amendments to monitoring, assessment, and reporting requirements; resolves certain stipulated penalties; and streamlines termination requirements.