| Action level; | |
| Corrosion inhibitor; | |
| Effective corrosion inhibitor residual; | |
| Enhanced coagulation; | |
| Enhanced softening; | |
| Haloacetic acids (five) (HAA5); | |
| First draw sample; | |
| Large water system; | |
| Lead service line; | |
| Maximum residual disinfectant level (MRDL); | |
| Maximum residual disinfectant level goal (MRDLG); | |
| Medium-size water system; | |
| Optimal corrosion control treatment; | |
| Service line sample; | |
| Single family structure; | |
| Small water system; | |
| Specific ultraviolet absorption (SUVA); and | |
| Total Organic Carbon (TOC). | |
| 141.12 | Maximum contaminant levels for organic chemicals. |
| 141.13 | Maximum contaminant levels for turbidity. |
| 141.21 | Coliform monitoring. |
| 141.22 | Turbidity sampling and analytical requirements. |
| 141.23(a) - excluding (i)(2) | 141.23(j), Inorganic chemical sampling. |
| 141.23(m) - | 141.23(o) |
| 141.24(a) - | 141.24(d), Organic chemicals other than total trihalomethanes. |
| 141.24 (f)(1) - 141.24 (f)(15), | |
| 141.24 (f)(18), 141.24 (f)(19), | |
| 141.24 (f)(21), 141.24 (f)(22) | |
| 141.24 (g)(1) - 141.24 (g)(9), | |
| 141.24 (g)(12) - 141.24 (g)(14), | |
| 141.24 (h)(1) - 141.24 (h)(11), | |
| 141.24 (h)(14) - 141.24 (h)(17) | |
| 141.24 (h)(20) | |
| 141.25(a), | 141.25 (c) - (d), Analytical methods for radioactivity. |
| 141.26 | Monitoring frequency and compliance for radioactivity in community water systems. |
| 141.31(d) | Reporting of public notices and compliance certifications. |
| 141.33(e) | Record maintenance of public notices and certifications. |
| 141.40 | Monitoring requirements for unregulated contaminants. |
| 141.61 | Maximum contaminant levels for organic contaminants. |
| 141.62, excluding (b) | Maximum contaminant levels for inorganic chemical and physical contaminants. |
| 141.64 | Maximum contaminant levels and Best Available Technologies (BATs) for disinfection byproducts. |
| 141.65(c) | Best Available Technologies (BATs) for Maximum Residual Disinfectant Levels. |
| 141.66 | Maximum contaminant levels for radionuclides. |
| Control of Lead and Copper | |
| 141.80, excluding (c)(3)(v) | General requirements. |
| 141.81 | Applicability of corrosion control treatment steps to small, medium-size and large water systems. |
| 141.82(a) - | 141.82(h) Description of corrosion control treatment requirements. |
| 141.83 | Source water treatment requirements. |
| 141.84 | Lead service line replacement requirements. |
| 141.85 | Public education and supplemental monitoring requirements. |
| 141.86 (a) - (f) |
Monitoring requirements for lead and copper in tap water. |
| 141.87 | Monitoring requirements for water quality parameters. |
| 141.88 | Monitoring requirements for lead and copper in source water. |
| 141.89 | Analytical methods for lead and copper testing. |
| 141.90, excluding (a)(4) | Reporting requirements. |
| 141.91 | Recordkeeping requirements. |
| Disinfectants and Disinfection Byproducts (D/DBP) | |
| 141.130 | General requirements. |
| 141.131 | Analytical requirements. |
| 141.132 | Monitoring requirements. |
| 141.133 | Compliance. |
| 141.134 | Reporting and recordkeeping. |
| 141.135 | Treatment technique for control of disinfection byproduct precursors. |
| Subpart O - Consumer Confidence Reports | |
| 141.153 (h)(6) | Contents of the reports. |
| Enhanced Filtration - Reporting and Recordkeeping | |
| 141.175(b) | Individual filter reporting and follow-up action requirements for systems treating surface water with conventional, direct, or in-line filtration and serving at least 10,000 people. |
| Subpart Q - Public Notification | |
| 141.201, excluding (3)(ii) of Table 1 | General public notification requirements. |
| 141.202,
excluding (3) of Table 1 |
Tier 1 Public Notice - Form, manner, and frequency of notice. |
| 141.203 | Tier 2 Public Notice - Form, manner, and frequency of notice. |
| 141.204 | Tier 3 Public Notice - Form, manner, and frequency of notice. |
| 141.205 | Content of the public notice. |
| 141.206 | Notice to new billing units or new customers. |
| 141.207 | Special notice of the availability of unregulated contaminant monitoring results. |
| 141.208 | Special notice for exceedances of the SMCL for fluoride. |
| 141.211 | Special notice for Cryptosporidium monitoring failure. |
| Appendix A - NPDWR violations and situations requiring PN | |
| Appendix B - Standard health effects language for PN | |
| Appendix C - List of acronyms used in PN regulation | |
| 141.400 | General requirements and applicability. |
| 141.402(c) | Groundwater source microbial monitoring and analytical methods. |
| 141.403 (b)(3)(i) through (iii) | Treatment technique requirements for groundwater systems. |
| Subpart T - Enhanced Filtration and Disinfection - Systems Serving Fewer Than 10,000 People | |
| 141.530 - 141.544 | Disinfection profile and benchmark. |
| 141.563 | Follow-up actions required. |
| 141.570, excluding (c) | Reporting requirements. |
| Subpart U and V - Initial Distribution System Evaluations and Stage 2 Disinfection Byproducts Requirements. | |
| 141.600 - 141.605 | Initial distribution system evaluations. |
| 141.620 - 141.629 | Stage 2 Disinfection Byproducts Requirements. |
| Subpart W - Enhanced Treatment for Cryptosporidium | |
| 141.700-722 Enhanced Treatment for Cryptosporidium | |
| Part 143 - National Secondary Drinking Water Regulations | |
| 143.1 | Purpose. |
| 143.2 | Definitions. |
| 143.3 | Secondary maximum contaminant levels. |
| 143.4 | Monitoring. |