EPA Region 8 announced a prospective lessee agreement between the United States, the state of South Dakota, Agnico Eagle Mines Limited, and Agnico Eagle Limited (collectively “Agnico”), providing that Agnico will perform a reuse assessment, including surface and subsurface sampling, and pay at least $2.5 million annually to cover the cost of water treatment and site operations for the duration of the agreement at the Gilt Edge Mine Superfund Site in Lawrence County, South Dakota.

The DOE Grid Deployment Office announced the availability of guidance for the hydroelectric efficiency improvement incentives as authorized through the Energy Policy Act of 2005, amended by the Infrastructure Investment and Jobs Act of 2021.

SIP Approval: Alaska (revisions updating adoption by reference date for federal regulations).

EPA seeks input on criteria to help align and ensure consistency across radon service provider credentialing programs operated by certification bodies and states.

SIP Approval: Indiana (revisions to incorporate site-specific updates to particulate matter emission limits for Vertellus Agriculture and Nutrition Specialties, LLC).

FWS announced 90-day findings on petitions to add four species to the lists of endangered and threatened wildlife and plants under the ESA; the agency found that petitions to list the common hippopotamus, Morro Bay polyphyllan scarab beetle, Inyo rock daisy, and roughhead shiner may be warranted, and initiated status reviews of the species.

United States v. Cohen, No. CV-06-4818 (JMA)(AYS) (E.D.N.Y. Mar. 14, 2023). Settling CERCLA defendants must distribute certain assets among claimants for recovery of response costs related to historical operations at Lawrence Aviation Industries, Inc., in Port Jefferson, New York.

SIP Approval: Georgia (update to materials incorporated by reference).

SIP Approval: Alabama (update to materials incorporated by reference).

FWS proposed to list the Texas heelsplitter as an endangered species and the Louisiana pigtoe as a threatened species under the ESA; to designate approximately 831.8 river miles in Texas as critical habitat for the Texas heelsplitter, and approximately 1,028.2 river miles in Arkansas, Louisiana, Mississippi, Oklahoma, and Texas as critical habitat for the Louisiana pigtoe; and proposed a rule under §4(d) of the Act to provide for conservation of the Louisiana pigtoe.