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• Disinfection Byproduct Rules (PDF)(28 pp, 473 K, April 2019, 815-B-19-001)
• Expedited Approval of Alternative Test Procedures(Appendix A to Subpart C of Part 141)
• Ground Water Rule (PDF)(8 pp, 187 K, April 2019, 815-B-19-006)
• Inorganic contaminants and other inorganic constituents (PDF)(66 pp, 848 K, April 2019, 815-B-19-002)
• Long Term 2 Enhanced Surface Water Treatment Rule (PDF)(12 pp, 205 K, February 2017, 821-F-17-001)
• Organic contaminants (PDF)(36 pp, 552 K, April 2019, 815-B-19-003)
• Radionuclides (PDF)(28 pp, 454 K, April 2019, 815-B-19-004)
• Revised Total Coliform Rule (PDF)(13 pp, 251 K, April 2019, 815-B-19-007)
• Secondary contaminants (PDF)(32 pp, 472 K, April 2019, 815-B-19-005)
• Surface Water Treatment Rule (PDF)(12 pp, 225 K, April 2019, 815-B-19-008)
• Unregulated contaminants(EPA developed methods)
  • Technical Advisory for Perfluorooctanoic Acid (PFOA) using EPA Method 537 Rev. 1.1 (PDF)(4 pp, 114 K, September 2016, 815-B-16-021)