Title 40

PART 141

Part 141 - National Primary Drinking Water Regulations

PART 141 - NATIONAL PRIMARY DRINKING WATER REGULATIONS Authority:42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11. Source:40 FR 59570, Dec. 24, 1975, unless otherwise noted. Editorial Note:Nomenclature changes to part 141 appear at 69 FR 18803, Apr. 9, 2004. Note:

For community water systems serving 75,000 or more persons, monitoring must begin 1 year following promulation and the effective date of the MCL is 2 years following promulgation. For community water systems serving 10,000 to 75,000 persons, monitoring must begin within 3 years from the date of promulgation and the effective date of the MCL is 4 years from the date of promulgation. Effective immediately, systems that plan to make significant modifications to their treatment processes for the purpose of complying with the TTHM MCL are required to seek and obtain State approval of their treatment modification plans. This note affects §§ 141.2, 141.6, 141.12, 141.24 and 141.30. For additional information see 44 FR 68641, Nov. 29, 1979.

40:25.0.1.1.3.1SUBPART A
Subpart A - General
40:25.0.1.1.3.1.16.1SECTION 141.1
   141.1 Applicability.
40:25.0.1.1.3.1.16.2SECTION 141.2
   141.2 Definitions.
40:25.0.1.1.3.1.16.3SECTION 141.3
   141.3 Coverage.
40:25.0.1.1.3.1.16.4SECTION 141.4
   141.4 Variances and exemptions.
40:25.0.1.1.3.1.16.5SECTION 141.5
   141.5 Siting requirements.
40:25.0.1.1.3.1.16.6SECTION 141.6
   141.6 Effective dates.
40:25.0.1.1.3.2SUBPART B
Subpart B - Maximum Contaminant Levels
40:25.0.1.1.3.2.16.1SECTION 141.11
   141.11 Maximum contaminant levels for inorganic chemicals.
40:25.0.1.1.3.2.16.2SECTION 141.12
   141.12 [Reserved]
40:25.0.1.1.3.2.16.3SECTION 141.13
   141.13 Maximum contaminant levels for turbidity.
40:25.0.1.1.3.3SUBPART C
Subpart C - Monitoring and Analytical Requirements
40:25.0.1.1.3.3.16.1SECTION 141.21
   141.21 Coliform sampling.
40:25.0.1.1.3.3.16.2SECTION 141.22
   141.22 Turbidity sampling and analytical requirements.
40:25.0.1.1.3.3.16.3SECTION 141.23
   141.23 Inorganic chemical sampling and analytical requirements.
40:25.0.1.1.3.3.16.4SECTION 141.24
   141.24 Organic chemicals, sampling and analytical requirements.
40:25.0.1.1.3.3.16.5SECTION 141.25
   141.25 Analytical methods for radioactivity.
40:25.0.1.1.3.3.16.6SECTION 141.26
   141.26 Monitoring frequency and compliance requirements for radionuclides in community water systems.
40:25.0.1.1.3.3.16.7SECTION 141.27
   141.27 Alternate analytical techniques.
40:25.0.1.1.3.3.16.8SECTION 141.28
   141.28 Certified laboratories.
40:25.0.1.1.3.3.16.9SECTION 141.29
   141.29 Monitoring of consecutive public water systems.
40:25.0.1.1.3.3.16.10.5APPENDIX Appendix A
   Appendix A to Subpart C of Part 141 - Alternative Testing Methods Approved for Analyses Under the Safe Drinking Water Act
40:25.0.1.1.3.4SUBPART D
Subpart D - Reporting and Recordkeeping
40:25.0.1.1.3.4.16.1SECTION 141.31
   141.31 Reporting requirements.
40:25.0.1.1.3.4.16.2SECTION 141.32
   141.32 [Reserved]
40:25.0.1.1.3.4.16.3SECTION 141.33
   141.33 Record maintenance.
40:25.0.1.1.3.4.16.4SECTION 141.34
   141.34 [Reserved]
40:25.0.1.1.3.4.16.5SECTION 141.35
   141.35 Reporting for unregulated contaminant monitoring results.
40:25.0.1.1.3.5SUBPART E
Subpart E - Special Regulations, Including Monitoring Regulations and Prohibition on Lead Use
40:25.0.1.1.3.5.16.1SECTION 141.40
   141.40 Monitoring requirements for unregulated contaminants.
40:25.0.1.1.3.5.16.2SECTION 141.41
   141.41 Special monitoring for sodium.
40:25.0.1.1.3.5.16.3SECTION 141.42
   141.42 Special monitoring for corrosivity characteristics.
40:25.0.1.1.3.5.16.4SECTION 141.43
   141.43 Prohibition on use of lead pipes, solder, and flux.
40:25.0.1.1.3.6SUBPART F
Subpart F - Maximum Contaminant Level Goals and Maximum Residual Disinfectant Level Goals
40:25.0.1.1.3.6.16.1SECTION 141.50
   141.50 Maximum contaminant level goals for organic contaminants.
40:25.0.1.1.3.6.16.2SECTION 141.51
   141.51 Maximum contaminant level goals for inorganic contaminants.
40:25.0.1.1.3.6.16.3SECTION 141.52
   141.52 Maximum contaminant level goals for microbiological contaminants.
40:25.0.1.1.3.6.16.4SECTION 141.53
   141.53 Maximum contaminant level goals for disinfection byproducts.
40:25.0.1.1.3.6.16.5SECTION 141.54
   141.54 Maximum residual disinfectant level goals for disinfectants.
40:25.0.1.1.3.6.16.6SECTION 141.55
   141.55 Maximum contaminant level goals for radionuclides.
40:25.0.1.1.3.7SUBPART G
Subpart G - National Primary Drinking Water Regulations: Maximum Contaminant Levels and Maximum Residual Disinfectant Levels
40:25.0.1.1.3.7.16.1SECTION 141.60
   141.60 Effective dates.
40:25.0.1.1.3.7.16.2SECTION 141.61
   141.61 Maximum contaminant levels for organic contaminants.
40:25.0.1.1.3.7.16.3SECTION 141.62
   141.62 Maximum contaminant levels for inorganic contaminants.
40:25.0.1.1.3.7.16.4SECTION 141.63
   141.63 Maximum contaminant levels (MCLs) for microbiological contaminants.
40:25.0.1.1.3.7.16.5SECTION 141.64
   141.64 Maximum contaminant levels for disinfection byproducts.
40:25.0.1.1.3.7.16.6SECTION 141.65
   141.65 Maximum residual disinfectant levels.
40:25.0.1.1.3.7.16.7SECTION 141.66
   141.66 Maximum contaminant levels for radionuclides.
40:25.0.1.1.3.8SUBPART H
Subpart H - Filtration and Disinfection
40:25.0.1.1.3.8.16.1SECTION 141.70
   141.70 General requirements.
40:25.0.1.1.3.8.16.2SECTION 141.71
   141.71 Criteria for avoiding filtration.
40:25.0.1.1.3.8.16.3SECTION 141.72
   141.72 Disinfection.
40:25.0.1.1.3.8.16.4SECTION 141.73
   141.73 Filtration.
40:25.0.1.1.3.8.16.5SECTION 141.74
   141.74 Analytical and monitoring requirements.
40:25.0.1.1.3.8.16.6SECTION 141.75
   141.75 Reporting and recordkeeping requirements.
40:25.0.1.1.3.8.16.7SECTION 141.76
   141.76 Recycle provisions.
40:25.0.1.1.3.9SUBPART I
Subpart I - Control of Lead and Copper
40:25.0.1.1.3.9.16.1SECTION 141.80
   141.80 General requirements.
40:25.0.1.1.3.9.16.2SECTION 141.81
   141.81 Applicability of corrosion control treatment steps to small, medium-size and large water systems.
40:25.0.1.1.3.9.16.3SECTION 141.82
   141.82 Description of corrosion control treatment requirements.
40:25.0.1.1.3.9.16.4SECTION 141.83
   141.83 Source water treatment requirements.
40:25.0.1.1.3.9.16.5SECTION 141.84
   141.84 Lead service line replacement requirements.
40:25.0.1.1.3.9.16.6SECTION 141.85
   141.85 Public education and supplemental monitoring requirements.
40:25.0.1.1.3.9.16.7SECTION 141.86
   141.86 Monitoring requirements for lead and copper in tap water.
40:25.0.1.1.3.9.16.8SECTION 141.87
   141.87 Monitoring requirements for water quality parameters.
40:25.0.1.1.3.9.16.9SECTION 141.88
   141.88 Monitoring requirements for lead and copper in source water.
40:25.0.1.1.3.9.16.10SECTION 141.89
   141.89 Analytical methods.
40:25.0.1.1.3.9.16.11SECTION 141.90
   141.90 Reporting requirements.
40:25.0.1.1.3.9.16.12SECTION 141.91
   141.91 Recordkeeping requirements.
40:25.0.1.1.3.10SUBPART J
Subpart J - Use of Non-Centralized Treatment Devices
40:25.0.1.1.3.10.16.1SECTION 141.100
   141.100 Criteria and procedures for public water systems using point-of-entry devices.
40:25.0.1.1.3.10.16.2SECTION 141.101
   141.101 Use of bottled water.
40:25.0.1.1.3.11SUBPART K
Subpart K - Treatment Techniques
40:25.0.1.1.3.11.16.1SECTION 141.110
   141.110 General requirements.
40:25.0.1.1.3.11.16.2SECTION 141.111
   141.111 Treatment techniques for acrylamide and epichlorohydrin.
40:25.0.1.1.3.12SUBPART L
Subpart L - Disinfectant Residuals, Disinfection Byproducts, and Disinfection Byproduct Precursors
40:25.0.1.1.3.12.16.1SECTION 141.130
   141.130 General requirements.
40:25.0.1.1.3.12.16.2SECTION 141.131
   141.131 Analytical requirements.
40:25.0.1.1.3.12.16.3SECTION 141.132
   141.132 Monitoring requirements.
40:25.0.1.1.3.12.16.4SECTION 141.133
   141.133 Compliance requirements.
40:25.0.1.1.3.12.16.5SECTION 141.134
   141.134 Reporting and recordkeeping requirements.
40:25.0.1.1.3.12.16.6SECTION 141.135
   141.135 Treatment technique for control of disinfection byproduct (DBP) precursors.
40:25.0.1.1.3.13SUBPART M
Subparts M-N [Reserved]
40:25.0.1.1.3.14SUBPART O
Subpart O - Consumer Confidence Reports
40:25.0.1.1.3.14.16.1SECTION 141.151
   141.151 Purpose and applicability of this subpart.
40:25.0.1.1.3.14.16.2SECTION 141.152
   141.152 Effective dates.
40:25.0.1.1.3.14.16.3SECTION 141.153
   141.153 Content of the reports.
40:25.0.1.1.3.14.16.4SECTION 141.154
   141.154 Required additional health information.
40:25.0.1.1.3.14.16.5SECTION 141.155
   141.155 Report delivery and recordkeeping.
40:25.0.1.1.3.14.16.6.6APPENDIX Appendix A
   Appendix A to Subpart O of Part 141 - Regulated Contaminants
40:25.0.1.1.3.15SUBPART P
Subpart P - Enhanced Filtration and Disinfection - Systems Serving 10,000 or More People
40:25.0.1.1.3.15.16.1SECTION 141.170
   141.170 General requirements.
40:25.0.1.1.3.15.16.2SECTION 141.171
   141.171 Criteria for avoiding filtration.
40:25.0.1.1.3.15.16.3SECTION 141.172
   141.172 Disinfection profiling and benchmarking.
40:25.0.1.1.3.15.16.4SECTION 141.173
   141.173 Filtration.
40:25.0.1.1.3.15.16.5SECTION 141.174
   141.174 Filtration sampling requirements.
40:25.0.1.1.3.15.16.6SECTION 141.175
   141.175 Reporting and recordkeeping requirements.
40:25.0.1.1.3.16SUBPART Q
Subpart Q - Public Notification of Drinking Water Violations
40:25.0.1.1.3.16.16.1SECTION 141.201
   141.201 General public notification requirements.
40:25.0.1.1.3.16.16.2SECTION 141.202
   141.202 Tier 1 Public Notice - Form, manner, and frequency of notice.
40:25.0.1.1.3.16.16.3SECTION 141.203
   141.203 Tier 2 Public Notice - Form, manner, and frequency of notice.
40:25.0.1.1.3.16.16.4SECTION 141.204
   141.204 Tier 3 Public Notice - Form, manner, and frequency of notice.
40:25.0.1.1.3.16.16.5SECTION 141.205
   141.205 Content of the public notice.
40:25.0.1.1.3.16.16.6SECTION 141.206
   141.206 Notice to new billing units or new customers.
40:25.0.1.1.3.16.16.7SECTION 141.207
   141.207 Special notice of the availability of unregulated contaminant monitoring results.
40:25.0.1.1.3.16.16.8SECTION 141.208
   141.208 Special notice for exceedance of the SMCL for fluoride.
40:25.0.1.1.3.16.16.9SECTION 141.209
   141.209 Special notice for nitrate exceedances above MCL by non-community water systems (NCWS), where granted permission by the primacy agency under § 141.11(d).
40:25.0.1.1.3.16.16.10SECTION 141.210
   141.210 Notice by primacy agency on behalf of the public water system.
40:25.0.1.1.3.16.16.11SECTION 141.211
   141.211 Special notice for repeated failure to conduct monitoring of the source water for Cryptosporidium and for failure to determine bin classification or mean Cryptosporidium level.
40:25.0.1.1.3.16.16.12.7APPENDIX Appendix A
   Appendix A to Subpart Q of Part 141 - NPDWR Violations and Other Situations Requiring Public Notice 1
40:25.0.1.1.3.16.16.12.8APPENDIX Appendix B
   Appendix B to Subpart Q of Part 141 - Standard Health Effects Language for Public Notification
40:25.0.1.1.3.16.16.12.9APPENDIX Appendix C
   Appendix C to Subpart Q of Part 141 - List of Acronyms Used in Public Notification Regulation
40:25.0.1.1.3.17SUBPART R
Subpart R [Reserved]
40:25.0.1.1.3.18SUBPART S
Subpart S - Ground Water Rule
40:25.0.1.1.3.18.16.1SECTION 141.400
   141.400 General requirements and applicability.
40:25.0.1.1.3.18.16.2SECTION 141.401
   141.401 Sanitary surveys for ground water systems.
40:25.0.1.1.3.18.16.3SECTION 141.402
   141.402 Ground water source microbial monitoring and analytical methods.
40:25.0.1.1.3.18.16.4SECTION 141.403
   141.403 Treatment technique requirements for ground water systems.
40:25.0.1.1.3.18.16.5SECTION 141.404
   141.404 Treatment technique violations for ground water systems.
40:25.0.1.1.3.18.16.6SECTION 141.405
   141.405 Reporting and recordkeeping for ground water systems.
40:25.0.1.1.3.19SUBPART T
Subpart T - Enhanced Filtration and Disinfection - Systems Serving Fewer Than 10,000 People
40:25.0.1.1.3.19.16SUBJGRP 16
   General Requirements
40:25.0.1.1.3.19.16.1SECTION 141.500
   141.500 General requirements.
40:25.0.1.1.3.19.16.2SECTION 141.501
   141.501 Who is subject to the requirements of subpart T
40:25.0.1.1.3.19.16.3SECTION 141.502
   141.502 When must my system comply with these requirements
40:25.0.1.1.3.19.16.4SECTION 141.503
   141.503 What does subpart T require
40:25.0.1.1.3.19.17SUBJGRP 17
   Finished Water Reservoirs
40:25.0.1.1.3.19.17.5SECTION 141.510
   141.510 Is my system subject to the new finished water reservoir requirements
40:25.0.1.1.3.19.17.6SECTION 141.511
   141.511 What is required of new finished water reservoirs
40:25.0.1.1.3.19.18SUBJGRP 18
   Additional Watershed Control Requirements for Unfiltered Systems
40:25.0.1.1.3.19.18.7SECTION 141.520
   141.520 Is my system subject to the updated watershed control requirements
40:25.0.1.1.3.19.18.8SECTION 141.521
   141.521 What updated watershed control requirements must my unfiltered system implement to continue to avoid filtration
40:25.0.1.1.3.19.18.9SECTION 141.522
   141.522 How does the State determine whether my system's watershed control requirements are adequate
40:25.0.1.1.3.19.19SUBJGRP 19
   Disinfection Profile
40:25.0.1.1.3.19.19.10SECTION 141.530
   141.530 What is a disinfection profile and who must develop one
40:25.0.1.1.3.19.19.11SECTION 141.531
   141.531 What criteria must a State use to determine that a profile is unnecessary
40:25.0.1.1.3.19.19.12SECTION 141.532
   141.532 How does my system develop a disinfection profile and when must it begin
40:25.0.1.1.3.19.19.13SECTION 141.533
   141.533 What data must my system collect to calculate a disinfection profile
40:25.0.1.1.3.19.19.14SECTION 141.534
   141.534 How does my system use this data to calculate an inactivation ratio
40:25.0.1.1.3.19.19.15SECTION 141.535
   141.535 What if my system uses chloramines, ozone, or chlorine dioxide for primary disinfection
40:25.0.1.1.3.19.19.16SECTION 141.536
   141.536 My system has developed an inactivation ratio; what must we do now
40:25.0.1.1.3.19.20SUBJGRP 20
   Disinfection Benchmark
40:25.0.1.1.3.19.20.17SECTION 141.540
   141.540 Who has to develop a disinfection benchmark
40:25.0.1.1.3.19.20.18SECTION 141.541
   141.541 What are significant changes to disinfection practice
40:25.0.1.1.3.19.20.19SECTION 141.542
   141.542 What must my system do if we are considering a significant change to disinfection practices
40:25.0.1.1.3.19.20.20SECTION 141.543
   141.543 How is the disinfection benchmark calculated
40:25.0.1.1.3.19.20.21SECTION 141.544
   141.544 What if my system uses chloramines, ozone, or chlorine dioxide for primary disinfection
40:25.0.1.1.3.19.21SUBJGRP 21
   Combined Filter Effluent Requirements
40:25.0.1.1.3.19.21.22SECTION 141.550
   141.550 Is my system required to meet subpart T combined filter effluent turbidity limits
40:25.0.1.1.3.19.21.23SECTION 141.551
   141.551 What strengthened combined filter effluent turbidity limits must my system meet
40:25.0.1.1.3.19.21.24SECTION 141.552
   141.552 My system consists of “alternative filtration” and is required to conduct a demonstration - what is required of my system and how does the State establish my turbidity limits
40:25.0.1.1.3.19.21.25SECTION 141.553
   141.553 My system practices lime softening - is there any special provision regarding my combined filter effluent
40:25.0.1.1.3.19.22SUBJGRP 22
   Individual Filter Turbidity Requirements
40:25.0.1.1.3.19.22.26SECTION 141.560
   141.560 Is my system subject to individual filter turbidity requirements
40:25.0.1.1.3.19.22.27SECTION 141.561
   141.561 What happens if my system's turbidity monitoring equipment fails
40:25.0.1.1.3.19.22.28SECTION 141.562
   141.562 My system only has two or fewer filters - is there any special provision regarding individual filter turbidity monitoring
40:25.0.1.1.3.19.22.29SECTION 141.563
   141.563 What follow-up action is my system required to take based on continuous turbidity monitoring
40:25.0.1.1.3.19.22.30SECTION 141.564
   141.564 My system practices lime softening - is there any special provision regarding my individual filter turbidity monitoring
40:25.0.1.1.3.19.23SUBJGRP 23
   Reporting and Recordkeeping Requirements
40:25.0.1.1.3.19.23.31SECTION 141.570
   141.570 What does subpart T require that my system report to the State
40:25.0.1.1.3.19.23.32SECTION 141.571
   141.571 What records does subpart T require my system to keep
40:25.0.1.1.3.20SUBPART U
Subpart U - Initial Distribution System Evaluations
40:25.0.1.1.3.20.24.1SECTION 141.600
   141.600 General requirements.
40:25.0.1.1.3.20.24.2SECTION 141.601
   141.601 Standard monitoring.
40:25.0.1.1.3.20.24.3SECTION 141.602
   141.602 System specific studies.
40:25.0.1.1.3.20.24.4SECTION 141.603
   141.603 40/30 certification.
40:25.0.1.1.3.20.24.5SECTION 141.604
   141.604 Very small system waivers.
40:25.0.1.1.3.20.24.6SECTION 141.605
   141.605 Subpart V compliance monitoring location recommendations.
40:25.0.1.1.3.21SUBPART V
Subpart V - Stage 2 Disinfection Byproducts Requirements
40:25.0.1.1.3.21.24.1SECTION 141.620
   141.620 General requirements.
40:25.0.1.1.3.21.24.2SECTION 141.621
   141.621 Routine monitoring.
40:25.0.1.1.3.21.24.3SECTION 141.622
   141.622 Subpart V monitoring plan.
40:25.0.1.1.3.21.24.4SECTION 141.623
   141.623 Reduced monitoring.
40:25.0.1.1.3.21.24.5SECTION 141.624
   141.624 Additional requirements for consecutive systems.
40:25.0.1.1.3.21.24.6SECTION 141.625
   141.625 Conditions requiring increased monitoring.
40:25.0.1.1.3.21.24.7SECTION 141.626
   141.626 Operational evaluation levels.
40:25.0.1.1.3.21.24.8SECTION 141.627
   141.627 Requirements for remaining on reduced TTHM and HAA5 monitoring based on subpart L results.
40:25.0.1.1.3.21.24.9SECTION 141.628
   141.628 Requirements for remaining on increased TTHM and HAA5 monitoring based on subpart L results.
40:25.0.1.1.3.21.24.10SECTION 141.629
   141.629 Reporting and recordkeeping requirements.
40:25.0.1.1.3.22SUBPART W
Subpart W - Enhanced Treatment for Cryptosporidium
40:25.0.1.1.3.22.24SUBJGRP 24
   General Requirements
40:25.0.1.1.3.22.24.1SECTION 141.700
   141.700 General requirements.
40:25.0.1.1.3.22.25SUBJGRP 25
   Source Water Monitoring Requirements
40:25.0.1.1.3.22.25.2SECTION 141.701
   141.701 Source water monitoring.
40:25.0.1.1.3.22.25.3SECTION 141.702
   141.702 Sampling schedules.
40:25.0.1.1.3.22.25.4SECTION 141.703
   141.703 Sampling locations.
40:25.0.1.1.3.22.25.5SECTION 141.704
   141.704 Analytical methods.
40:25.0.1.1.3.22.25.6SECTION 141.705
   141.705 Approved laboratories.
40:25.0.1.1.3.22.25.7SECTION 141.706
   141.706 Reporting source water monitoring results.
40:25.0.1.1.3.22.25.8SECTION 141.707
   141.707 Grandfathering previously collected data.
40:25.0.1.1.3.22.26SUBJGRP 26
   Disinfection Profiling and Benchmarking Requirements
40:25.0.1.1.3.22.26.9SECTION 141.708
   141.708 Requirements when making a significant change in disinfection practice.
40:25.0.1.1.3.22.26.10SECTION 141.709
   141.709 Developing the disinfection profile and benchmark.
40:25.0.1.1.3.22.27SUBJGRP 27
   Treatment Technique Requirements
40:25.0.1.1.3.22.27.11SECTION 141.710
   141.710 Bin classification for filtered systems.
40:25.0.1.1.3.22.27.12SECTION 141.711
   141.711 Filtered system additional Cryptosporidium treatment requirements.
40:25.0.1.1.3.22.27.13SECTION 141.712
   141.712 Unfiltered system Cryptosporidium treatment requirements.
40:25.0.1.1.3.22.27.14SECTION 141.713
   141.713 Schedule for compliance with Cryptosporidium treatment requirements.
40:25.0.1.1.3.22.27.15SECTION 141.714
   141.714 Requirements for uncovered finished water storage facilities.
40:25.0.1.1.3.22.28SUBJGRP 28
   Requirements for Microbial Toolbox Components
40:25.0.1.1.3.22.28.16SECTION 141.715
   141.715 Microbial toolbox options for meeting Cryptosporidium treatment requirements.
40:25.0.1.1.3.22.28.17SECTION 141.716
   141.716 Source toolbox components.
40:25.0.1.1.3.22.28.18SECTION 141.717
   141.717 Pre-filtration treatment toolbox components.
40:25.0.1.1.3.22.28.19SECTION 141.718
   141.718 Treatment performance toolbox components.
40:25.0.1.1.3.22.28.20SECTION 141.719
   141.719 Additional filtration toolbox components.
40:25.0.1.1.3.22.28.21SECTION 141.720
   141.720 Inactivation toolbox components.
40:25.0.1.1.3.22.29SUBJGRP 29
   Reporting and Recordkeeping Requirements
40:25.0.1.1.3.22.29.22SECTION 141.721
   141.721 Reporting requirements.
40:25.0.1.1.3.22.29.23SECTION 141.722
   141.722 Recordkeeping requirements.
40:25.0.1.1.3.22.30SUBJGRP 30
   Requirements for Sanitary Surveys Performed by EPA
40:25.0.1.1.3.22.30.24SECTION 141.723
   141.723 Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.
40:25.0.1.1.3.23SUBPART X
Subpart X - Aircraft Drinking Water Rule
40:25.0.1.1.3.23.31.1SECTION 141.800
   141.800 Applicability and compliance date.
40:25.0.1.1.3.23.31.2SECTION 141.801
   141.801 Definitions.
40:25.0.1.1.3.23.31.3SECTION 141.802
   141.802 Coliform sampling plan.
40:25.0.1.1.3.23.31.4SECTION 141.803
   141.803 Coliform sampling.
40:25.0.1.1.3.23.31.5SECTION 141.804
   141.804 Aircraft water system operations and maintenance plan.
40:25.0.1.1.3.23.31.6SECTION 141.805
   141.805 Notification to passengers and crew.
40:25.0.1.1.3.23.31.7SECTION 141.806
   141.806 Reporting requirements.
40:25.0.1.1.3.23.31.8SECTION 141.807
   141.807 Recordkeeping requirements.
40:25.0.1.1.3.23.31.9SECTION 141.808
   141.808 Audits and inspections.
40:25.0.1.1.3.23.31.10SECTION 141.809
   141.809 Supplemental treatment.
40:25.0.1.1.3.23.31.11SECTION 141.810
   141.810 Violations.
40:25.0.1.1.3.24SUBPART Y
Subpart Y - Revised Total Coliform Rule
40:25.0.1.1.3.24.31.1SECTION 141.851
   141.851 General.
40:25.0.1.1.3.24.31.2SECTION 141.852
   141.852 Analytical methods and laboratory certification.
40:25.0.1.1.3.24.31.3SECTION 141.853
   141.853 General monitoring requirements for all public water systems.
40:25.0.1.1.3.24.31.4SECTION 141.854
   141.854 Routine monitoring requirements for non-community water systems serving 1,000 or fewer people using only ground water.
40:25.0.1.1.3.24.31.5SECTION 141.855
   141.855 Routine monitoring requirements for community water systems serving 1,000 or fewer people using only ground water.
40:25.0.1.1.3.24.31.6SECTION 141.856
   141.856 Routine monitoring requirements for subpart H public water systems serving 1,000 or fewer people.
40:25.0.1.1.3.24.31.7SECTION 141.857
   141.857 Routine monitoring requirements for public water systems serving more than 1,000 people.
40:25.0.1.1.3.24.31.8SECTION 141.858
   141.858 Repeat monitoring and E. coli requirements.
40:25.0.1.1.3.24.31.9SECTION 141.859
   141.859 Coliform treatment technique triggers and assessment requirements for protection against potential fecal contamination.
40:25.0.1.1.3.24.31.10SECTION 141.860
   141.860 Violations.
40:25.0.1.1.3.24.31.11SECTION 141.861
   141.861 Reporting and recordkeeping.