89 FR 41392
NOAA approved a boundary expansion for the South Slough National Estuarine Research Reserve in Charleston, Oregon.
89 FR 40198
EPA finalized a CWA regulation to revise the technology-based effluent limitations guidelines and standards for the steam electric power generating point source category applicable to flue gas desulfurization wastewater, bottom ash transport water and legacy wastewater at existing sources, and combustion residual leachate at new and existing sources.
89 FR 39254
EPA finalized a rule to address the unreasonable risk of injury to health presented by methylene chloride under its conditions of use under TSCA.
89 FR 39124
EPA designated two per- and polyfluoroalkyl substances (PFAS)—perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), including their salts and structural isomers—as hazardous substances under CERCLA.
89 FR 38950
EPA established requirements for legacy coal combustion residuals (CCR) surface impoundments, as well as CCR management units at active CCR facilities and at inactive CCR facilities with a legacy CCR surface impoundment.