RCLA/CWA/CAA/PHMSA/SDWAEPA Amends Lime Manufacturing NESHAP: On July 16, 2024, EPA amended the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Lime Manufacturing Plants. 89 Fed. Reg. 57738. The amendments include final maximum achievable control technology (MACT) standards for hydrogen chloride, mercury, organic hazardous air pollutants (HAP), and dioxin/furans. The final rule will be effective September 16, 2024. The incorporation by reference (IBR) of certain publications listed in the rule is approved by the Director of the Federal Register as of September 16, 2024.EPA Proposes Amendments To Hazardous Waste Combustors NESHAP: On July 24, 2024, EPA proposed amendments to the NESHAP for Hazardous Waste Combustors (HWC) to remove the exemptions and revise other provisions associated with emission standard exemptions for periods of malfunction, to add electronic reporting provisions, to amend emergency safety vent provisions, and to correct other minor provisions. 89 Fed. Reg. 59867. According to EPA, the removal of the exemption for periods of malfunction is predicated on the previous vacatur of emission standard exemptions for periods of startup, shutdown, and malfunction (SSM) from the applicable general provisions. EPA also proposes to remove or revise some associated requirements that are unnecessary, inappropriate, or redundant in the absence of the malfunction exemption, such as in recordkeeping and reporting. Comments are due September 9, 2024. Under the PRA, comments on the information collection provisions are best assured of consideration if OMB receives a copy of the comments by August 23, 2024.EPA Announces Results Of Fourth Review Of Existing Drinking Water Standards: The Safe Drinking Water Act (SDWA) requires EPA to conduct a review every six years of existing national primary drinking water regulations (NPDWR) and determine which, if any, are appropriate for revision. The purpose of the Six-Year Review is to evaluate available information for reg