United States v. PPG Industries, Inc., No. 2:24-04771 (D.N.J. Apr. 11, 2024). Under a proposed consent decree concerning the Riverside Industrial Park Superfund Site in Newark, New Jersey, a settling CERCLA defendant must design and implement the components of the remedy selected for the site in EPA's September 28, 2021, record of decision that relate to waste material, sewer water, soil gas, and soil/fill material; perform groundwater monitoring and implement institutional controls; reimburse the United States $2,883,120 and New Jersey $116,880 for past response costs relating to the site; and pay for future response costs to be incurred.

The Mine Safety and Health Administration amended its existing standards to better protect miners against occupational exposure to respirable crystalline silica, a significant health hazard, and to improve respiratory protection for miners from exposure to airborne contaminants.

EPA announced the availability of and seeks comment on the Agency’s draft human health and ecological risk assessments for the registration review of formaldehyde and paraformaldehyde. 

EPA announced the availability of and seeks comment on an update to the interim guidance on the destruction and disposal of per- and polyfluoroalkyl substances (PFAS) and materials containing PFAS; the updated guidance builds on information pertaining to technologies that may be feasible and appropriate for the destruction or disposal of PFAS and PFAS-containing materials, and identifies key data gaps and uncertainties that must be resolved before EPA can issue more definitive recommendations about PFAS destruction and disposal technologies.

The National Highway Traffic Safety Administration proposed to establish two new federal motor vehicle safety standards specifying performance requirements for all motor vehicles that use hydrogen as a fuel source. 

EPA finalized changes to its test procedures required to be used by industries and municipalities when analyzing the chemical, physical, and biological properties of wastewater and other samples for reporting under the NPDES permit program. 

United States v. Villegas, No. 1:24-cv-962 (D. Colo. Apr. 10, 2024). Under a proposed consent decree, settling CWA defendants that discharged pollutants without a permit into waters of the United States must restore impacted areas. 

United States v. Lexington-Fayette Urban County Government, No. 5:06-cv-386-KSF (E.D. Ky. Apr. 10, 2024). A proposed material modification to a consent decree concerning alleged violations of the CWA stemming from the settling defendant's operation of its sanitary sewer system and wastewater treatment plant extends the final compliance deadline for remedial projects by four years to December 31, 2030, and makes changes to reporting frequency and methods.

United States v. Grindstone Indian Rancheria of Wintun-Wailaki Indians of California, No. 2:24-cv-01044-KJM-CKD (E.D. Cal. Apr. 9, 2024). Under a proposed consent decree, a settling SDWA defendant must pay a civil penalty of $8,963 and perform injunctive relief measures including demonstrating compliance with surface water treatment requirements, providing boil water notices and alternative water supply, and developing and implementing an extensive operation and maintenance plan for the Grindstone Indian Rancheria Public Water System. 

United States v. PPG Industries, Inc., No. 2:24-04771 (D.N.J. Apr. 11, 2024). Under a proposed consent decree, a settling CERCLA defendant must design and implement the components of the remedy selected for the Riverside Industrial Park Superfund Site in Newark, New Jersey, that relate to waste material, sewer water, soil gas, and soil/fill material; pay a total of $3,000,000 for past response costs; and pay for future response costs.