This action finalizes the residual risk and technology review (RTR) conducted for the Site Remediation source category regulated under NESHAP. The EPA is finalizing the proposed determination that risks due to emissions of air toxics from site remediation sources are acceptable and that no revision to the standards is required to provide an ample margin of safety to protect public health. Based on the results of our technology review, we are promulgating the proposed changes to the leak detection and repair (LDAR) program.. Finally, we are making minor clarifications and corrections. The final revisions to the rule will increase the level of emissions control and environmental protection provided by the Site Remediation NESHAP. This final rule is effective on 10 July 2020. POC is Matthew Witosky, Sector Policies and Programs Division (E143-05), Office of Air Quality Planning and Standards, EPA, Research Triangle Park, North Carolina 27711; telephone number: (919) 541-2865; fax number: (919) 541-0516; and email address: witosky.matthew@epa.gov.
(Federal Register: 10 July 2020 [Rule] pages 41680-41714).