Part 141 — National Primary Drinking Water Regulations
- Subpt. A General §§141.1 to 141.6
- Subpt. B Maximum Contaminant Levels §§141.11 to 141.13
- Subpt. C Monitoring and Analytical Requirements §§141.21 to 141.29
- Subpt. D Reporting and Recordkeeping §§141.31 to 141.35
- Subpt. E Special Regulations, Including Monitoring §§141.40 to 141.42
- Subpt. F Maximum Contaminant Level Goals and Maximum Residual Disinfectant Level Goals §§141.50 to 141.55
- Subpt. G National Primary Drinking Water Regulations: Maximum Contaminant Levels and Maximum Residual Disinfectant Levels §§141.60 to 141.66
- Subpt. H Filtration and Disinfection §§141.70 to 141.76
- Subpt. I Control of Lead and Copper §§141.80 to 141.93
- Subpt. J Use of Non-Centralized Treatment Devices §§141.100 to 141.101
- Subpt. K Treatment Techniques §§141.110 to 141.111
- Subpt. L Disinfectant Residuals, Disinfection Byproducts, and Disinfection Byproduct Precursors §§141.130 to 141.135
- Subpt. M-N Subparts M-N [Reserved]
- Subpt. O Consumer Confidence Reports §§141.151 to 141.156
- Subpt. P Enhanced Filtration and Disinfection—Systems Serving 10,000 or More People §§141.170 to 141.175
- Subpt. Q Public Notification of Drinking Water Violations §§141.201 to 141.211
- Subpt. R Subpart R [Reserved]
- Subpt. S Ground Water Rule §§141.400 to 141.405
- Subpt. T Enhanced Filtration and Disinfection—Systems Serving Fewer Than 10,000 People §§141.500 to 141.571
- Subpt. U Initial Distribution System Evaluations §§141.600 to 141.605
- Subpt. V Stage 2 Disinfection Byproducts Requirements §§141.620 to 141.629
- Subpt. W Enhanced Treatment for Cryptosporidium §§141.700 to 141.723
- Subpt. X Aircraft Drinking Water Rule §§141.800 to 141.810
- Subpt. Y Revised Total Coliform Rule §§141.851 to 141.861
- Subpt. Z Control of Per- and Polyfluoroalkyl Substances (PFAS) §§141.900 to 141.905