Part 141 - NATIONAL PRIMARY DRINKING WATER REGULATIONS
- Subpart A - GENERAL (§§ 141.1 — 141.6)
- Subpart B - MAXIMUM CONTAMINANT LEVELS (§§ 141.11 — 141.13)
- Subpart C - MONITORING AND ANALYTICAL REQUIREMENTS (§§ 141.21 — 141.29)
- Subpart D - REPORTING AND RECORDKEEPING (§§ 141.31 — 141.35)
- Subpart E - SPECIAL REGULATIONS, INCLUDING MONITORING (§§ 141.40 — 141.42)
- Subpart F - MAXIMUM CONTAMINANT LEVEL GOALS AND MAXIMUM RESIDUAL DISINFECTANT LEVEL GOALS (§§ 141.50 — 141.55)
- Subpart G - NATIONAL PRIMARY DRINKING WATER REGULATIONS: MAXIMUM CONTAMINANT LEVELS AND MAXIMUM RESIDUAL DISINFECTANT LEVELS (§§ 141.60 — 141.66)
- Subpart H - FILTRATION AND DISINFECTION (§§ 141.70 — 141.76)
- Subpart I - CONTROL OF LEAD AND COPPER (§§ 141.80 — 141.93)
- Subpart J - USE OF NON-CENTRALIZED TREATMENT DEVICES (§§ 141.100 — 141.101)
- Subpart K - TREATMENT TECHNIQUES (§§ 141.110 — 141.111)
- Subpart L - DISINFECTANT RESIDUALS, DISINFECTION BYPRODUCTS, AND DISINFECTION BYPRODUCT PRECURSORS (§§ 141.130 — 141.135)
- Subpart O - CONSUMER CONFIDENCE REPORTS (§§ 141 — 141.155)
- Subpart P - ENHANCED FILTRATION AND DISINFECTION-SYSTEMS SERVING 10,000 OR MORE PEOPLE (§§ 141.170 — 141.175)
- Subpart Q - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS (§ 141)
- Subpart S - GROUND WATER RULE (§§ 141.400 — 141.405)
- Subpart T - ENHANCED FILTRATION AND DISINFECTION-SYSTEMS SERVING FEWER THAN 10,000 PEOPLE (§§ 141.520 — 141.571)
- Subpart U - INITIAL DISTRIBUTION SYSTEM EVALUATIONS (§§ 141.600 — 141.605)
- Subpart V - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS (§§ 141.620 — 141.629)
- Subpart W - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM (§§ 141.708 — 141.714)
- Subpart X - AIRCRAFT DRINKING WATER RULE (§§ 141.800 — 141.810)
- Subpart Y - REVISED TOTAL COLIFORM RULE (§§ 141.851 — 141.861)