Approved Drinking Water Analytical Methods
- Disinfection Byproduct Rules (pdf)
- Expedited Approval of Alternative Test Procedures (Appendix A to Subpart C of Part 141)
- Ground Water Rule (pdf)
- Inorganic contaminants and other inorganic constituents (pdf)
- Long Term 2 Enhanced Surface Water Treatment Rule (PDF) (205 KB, February 2017, 821-F-17-001)
- Organic contaminants (pdf)
- Radionuclides (pdf)
- Revised Total Coliform Rule (pdf)
- Secondary contaminants (pdf)
- Surface Water Treatment Rule (pdf)
- Unregulated contaminants (EPA developed methods)
- Technical Advisory for Perfluorooctanoic Acid (PFOA) using EPA Method 537 Rev. 1.1 (PDF) (114 KB, September 2016, 815-B-16-021)