2040-AF19 201004 Unified Agenda of Federal Regulatory and Deregulatory Actions 2040 Water WATER 2000 Environmental Protection Agency EPA National Primary Drinking Water Regulations: Radionuclides On December 7, 2000 (65 FR 76708), EPA promulgated final revised and/or new national primary drinking water regulations (NPDWRs) for non-radon radionuclides as authorized by the Safe Drinking Water Act. In this action, referred to as the Radionuclides Rule, EPA promulgated maximum contaminant level goals (MCLGs), maximum contaminant levels (MCLs), monitoring, reporting, and public notification requirements for gross alpha particle activity, combined radium-226 and 228, beta particle and photon activity and uranium. The Radionuclides Rule became effective on December 8, 2003. EPA developed a Final Regulatory Flexibility Analysis for the Radionuclides Rule and took several steps to lessen the impacts on small entities (i.e., small systems). These steps included: (1) The selection of a less stringent MCL for uranium, (2) a reduction in the overall monitoring frequencies for systems with radionuclides levels less than the MCL, (3) allowance of grandfathered data and State monitoring discretion for determining the initial monitoring baseline, and (4) the exclusion of non-transient, non-community water systems from the radionuclides regulations. EPA continues to view the NPDWRs for radionuclides as important components to ensuring and protecting the health of consumers served by public drinking water systems and intends to continue to require compliance with these NPDWRs. While EPA has taken steps to evaluate and mitigate impacts on small entities as part of the promulgation of the Radonuclides Rule, this new entry in the regulatory agenda announces that EPA will review the NPDWRs for radionuclides pursuant to section 610 of the Regulatory Flexibility Act (5 U.S.C. 610). As part of this review, EPA will consider and solicit comments on the following factors: (1) The continued need for the rule; (2) the nature of complaints or comments received concerning the rule; (3) the complexity of the rule; (4) the extent to which the rule overlaps, duplicates, or conflicts with other Federal, State, or local government rules; and (5) the degree to which the technology, economic conditions or other factors have changed in the area affected by the rule. Comments must be received within 90 days of this notice. In submitting comments, please reference Docket ID EPA-HQ-OW-2010-0166 and follow the instructions provided in the preamble to this issue of the Regulatory Agenda. This docket can be accessed at www.regulations.gov. Info./Admin./Other First Time Published in The Unified Agenda Prerule Stage No No Section 610 Review None 5 USC 610 No Final Rule 12/07/2000 65 FR 76708 Begin Review 04/00/2010 End Comment Period 07/00/2010 End Review 12/00/2010 SAN No. 5445; Related to RIN 2040-AC98; EPA Docket information: EPA-HQ-OW-2010-0166. No No None No Yes No Sandy Evalenko 2040 Water WATER 202 564-0264 202 564-0194 Evalenko.Sandy@epamail.epa.gov 4101M, Washington DC 20460 Stephanie Flaharty 2040 Water WATER 202 564-5072 flaharty.stephanie@epa.gov Environmental Protection Agency, Water, Mail Code 4601M, Washington DC 20460