{"abstract":"The Safe Drinking Water Act (SDWA) requires the United States Environmental Protection Agency (EPA) to conduct a periodic review of existing National Primary Drinking Water Regulations (NPDWRs). EPA is requesting public comment on the results of its review of 69 NPDWRs that were established prior to 1997, including 68 chemical NPDWRs and the Total Coliform Rule (TCR). The intended purpose of the review is to identify those NPDWRs for which current health risk assessments, changes in technology, and/or other factors, provide a health or technical basis to support a regulatory revision that will improve or strengthen public health protection. Based on its review, and pending an evaluation of public comments, the Agency preliminarily believes that the 68 chemical NPDWRs remain appropriate at this time, and that the TCR should be revised.","action":"Review of regulations; request for comments.","agencies":[{"raw_name":"ENVIRONMENTAL PROTECTION AGENCY","name":"Environmental Protection Agency","id":145,"url":"https://www.federalregister.gov/agencies/environmental-protection-agency","json_url":"https://www.federalregister.gov/api/v1/agencies/145","parent_id":null,"slug":"environmental-protection-agency"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2002/04/17/02-9154.html","cfr_references":[{"chapter":null,"citation_url":null,"part":141,"title":40}],"citation":"67 FR 19030","comment_url":null,"comments_close_on":"2002-06-17","correction_of":null,"corrections":[],"dates":"EPA must receive public comments on this action by June 17, 2002.","disposition_notes":null,"docket_ids":["FRL-7167-9"],"dockets":[{"supporting_documents":[{"title":"Legacy Index for Docket W-01-14","document_id":"EPA-HQ-OW-2002-0012-0139"},{"title":"Office of Water Docket index for Announcement of Completion of EPA's Review of Existing Drinking Water Standards.","document_id":"EPA-HQ-OW-2002-0012-0137"}],"agency_name":"EPA","documents":[{"comment_count":43,"comment_start_date":"2025-04-10","updated_at":"2025-04-18T01:56:36.043-04:00","comment_url":"https://www.regulations.gov/commenton/EPA-HQ-OW-2002-0012-0138","allow_late_comments":false,"id":"EPA-HQ-OW-2002-0012-0138","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":2,"id":"EPA-HQ-OW-2002-0012","title":"National Primary Drinking Water Regulations; Announcement of EPA's Review of Existing Drinking Water Standards and Request for Public 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