EPA requested nominations of chemicals, microbes, or other substances that are not currently regulated in drinking water for possible inclusion on the Sixth Contaminant Candidate List.

EPA entered into a proposed consent decree under the CAA in Environmental Integrity Project v. Regan, No. 1:22-cv-3063 (D.D.C.), that would establish a deadline for the Agency to take action in connection with its alleged failure to perform certain non-discretionary duties in accordance with the Act to take final action with respect to a SIP revision submitted by the Texas Commission on Environmental Quality.

SIP Proposal: Idaho (state board composition requirements).

EPA approved the Delaware Division of Public Health's request to revise or modify certain of its Agency-authorized programs to allow electronic reporting.

United States v. Akron, Ohio, City of, No. 09-cv-00272 (N.D. Ohio Feb. 13, 2023). A proposed amendment to a consent decree concerning operation of a municipal wastewater treatment facility and sewer system in violation of the CWA requires the settling defendant to resize a large tunnel (the Northside Interceptor Tunnel) from 23 million gallons to 10.3 million gallons and add a new requirement for sewer separation at one of its combined sewer overflow discharge points that would otherwise be controlled by the Northside Interceptor Tunnel.

United States v. Capital Region Water, No. 1:15-cv-00291-CCC (M.D. Pa. Feb. 13, 2023). Under a proposed modification to a partial consent decree, CWA defendants must perform injunctive measures to ensure that the sewer system is capable of meeting capture goals in a Long-Term Control Plan in connection with alleged unpermitted discharges from the sewer system in Harrisburg, failure to comply with EPA’s 1994 Combined Sewer Overflow Control Policy, and failure to comply with other requirements of sewer and stormwater NPDES permits.

FWS proposed to establish a nonessential experimental population of the gray wolf in Colorado under ESA §10(j).

SIP Proposal: Texas (revisions concerning reasonably available control technology requirements for the 2016 Oil and Natural Gas Control Techniques Guidelines for Dallas-Fort Worth and the Houston-Galveston-Brazoria nonattainment areas for the 2008 eight-hour ozone NAAQS).

The Natural Resources Conservation Service responded to comments received during a listening session, on December 17, 2020, for public input about water quantity in the western United States as it relates to existing Service programs and the subsequent public comment period, which closed on January 19, 2021, and identified the actions that the Service has taken and will be taking in the months ahead.

SIP Approval: California (revisions regarding particulate matter and nitrogen oxides emissions from public transit buses).