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Drinking Water
National Summary
Drinking water in the United States is regulated under the Safe Drinking Water Act (SDWA), which is designed to protect drinking water quality and covers both surface and groundwaters that have the potential to be used as drinking water sources. The U.S. Environmental Protection Agency (EPA) has the authority to establish and update specific standards for drinking water quality and is supported by the Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA). The EPA has established specific federal limits, referred to as primary standards, for over 80 compounds that have a known or suspected potential to create health-related impacts. The EPA has also established secondary standards for nuisance-related contaminants; these standards are typically implemented voluntarily or through state rules.
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Proposed Regulations 40 CFR 141 - Announcement of Preliminary Regulatory Determinations for Contaminants on the Fourth Drinking Water Contaminant Candidate List; Extension of Comment Period 05/01/2020National
Proposed Regulations 40 CFR 141 - Announcement of Preliminary Regulatory Determinations for Contaminants on the Fourth Drinking Water Contaminant Candidate List; Proposed Rule 03/10/2020National
Final Regulations 40 CFR 141 - Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act 06/21/2013National
Final Regulations 40 CFR 141 - Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act 06/27/2014National
Final Regulations 40 CFR 141 - Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures 06/19/2014National
Final Regulations 40 CFR 141 - Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures 10/31/2018National
Final Regulations 40 CFR 141 - Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the SDWA 05/31/2013National
Proposed Regulations 40 CFR 141 - Microbial and Disinfection Byproducts Rules: Public Meeting To Inform Potential Rule Revisions 09/30/2020National
Notices 40 CFR 141 - Notice of Public Meeting and Webinar: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) for Public Water Systems 05/29/2014National
Final Regulations 40 CFR 141 and 142 - Drinking Water: Final Action on Perchlorate 07/21/2020National
Final Regulations 40 CFR 141 and 142 - Final Regulation to Make Minor Corrections to the Total Coliform Rule 02/26/2014National
Notices 40 CFR 141 and 142 - Long Term 2 Enhanced Surface Water Treatment Rule: Public Meeting on Monitoring Data Analysis, Occurrence Forecasts, Binning, and the Microbial Toolbox 09/18/2012National
Proposed Regulations 40 CFR 141 and 142 - National Primary Drinking Water Regulations: Lead and Copper Rule Revisions 12/19/2019National
Proposed Regulations 40 CFR 141 and 142 - National Primary Drinking Water Regulations: Perchlorate; Proposed Rule 06/26/2019National
Final Regulations 40 CFR 141 and 142 - National Primary Drinking Water Regulations: Revisions to the Total Coliform Rule 02/13/2013National
Notices 40 CFR 141 and 142 - Notice of a Public Meeting: Stakeholder Meeting Concerning EPA's Intent To Regulate Perchlorate Levels in Drinking Water 08/30/2012National
Proposed Regulations 40 CFR 141 and 142 - Proposed Regulation to Make Minor Corrections to the Total Coliform Rule 02/26/2014National
Proposed Regulations 40 CFR 141 and 142 -- Public Meeting: Potential Regulatory Implications of the Reduction of Lead in Drinking Water Act of 2011 07/30/2012National
Final Regulations 40 CFR 141 and 143 - Use of Lead Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water 09/01/2020National
Proposed Regulations 40 CFR Parts 141 and 142 - National Primary Drinking Water Regulations: Proposed Lead and Copper Rule Revisions; Proposed Rule 11/13/2019National
Guidance Documents Aircraft Drinking Water Rule: A Quick Reference Guide  National
Notices Announcement of Public Meeting on the Consumer Confidence Report Rule Retrospective Review and Request for Public Comment 09/11/2012National
Guidance Documents Assessment of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources - EPA Draft Report  National
Notices Authorized Program Revision Approval, State of Colorado 07/14/2014National
Guidance Documents Commissioning Security Systems for Drinking Water Utilities  National
Guidance Documents Cross-Connection Control Manual  National
Guidance Documents Cross-Connection Control: A Best Practices Guide  National
Notices Cross-Media Electronic Reporting: Authorized Program Revision Approval, Montana 08/14/2013National
Notices Designation of Bainbridge Island, Washington as a Sole Source Aquifer 03/30/2013National
Regulatory Analysis Drinking Water  National
Guidance Documents Drinking Water Enforcement Response Policy  National
Guidance Documents Drinking Water State Revolving Fund: Program Operations Manual  National
Notices EPA Notice of Public Water System Supervision Program Approval for Ohio 04/23/2014National
Guidance Documents Filter Backwash Recycling Rule Technical Guidance Manual  National
Guidance Documents Filter Backwash Recycling Rule: A Quick Reference Guide  National
Guidance Documents Filter Backwash Recycling Rule: A Rule Summary for Systems  National
Guidance Documents Framework for Geologic Carbon Sequestration on Public Land: Report to Congress  National
Guidance Documents GAO Report on Bottled Water  National
Questions & Answers Has anyone created a consolidated table of all the maximum contaminant levels (MCLs) from each State? 12/01/2017National
Guidance Documents Health Series: Bottled Water Basics  National