Public Water System Supervision Program Water Supply Guidance Manual

EPA periodically issues memorandums which clarify drinking water policies and regulations. These policy memos have been collected into a water supply guidance (WSG) manual which is made available to states and public water systems to assist in implementation of the Safe Drinking Water Act.

Use the arrows in the column headers to sort the any of the columns alphabetically or search the table with the search box. By default the table is sorted by the Section column alphabetically.

Please note: Files with an * are listed in more than one Section.

Water Supply Guidance Subject Index Table
Section	Title of Guidance	Date	New WSG Number	Old WSG Number
Direct Implementation, Interpretation Of The Safe Drinking Water Act And Regulations, Lead and Copper Control, Public Notification	Lead ALE Tier 1 Memo to Water Division Directors (pdf) (230.67 KB, 4/11/2024)	4/11/2024	219
Alternative Treatment Technologies	Release of Final State Alternative Technology Approval Protocol (WSG 90)	7/11/1996	90	103
Alternative Treatment Technologies	Small System Compliance Technology List for the Surface Water Treatment Rule and Total Coliform Rule (WSG 101)	09/1992	101	114
Alternative Treatment Technologies	Small System Compliance Technology List for the Non-microbial Contaminants Regulated before 1996 (WSG 101A)	09/1998	101A	114A
Alternative Treatment Technologies	Variance Technology Findings for Contaminants Regulated before 1996 (WSG 101B)	09/1998	101B	114B
Analytical Requirements/Laboratory Certification	Procedures for Rounding-Off Analytical Data to Determine Compliance with Maximum Contaminant Levels Present in NIPDWR* (WSG 20)	4/6/1981	20	21
Analytical Requirements/Laboratory Certification	Lab Certification for Lead Contamination Control Act (LCCA)* (No longer applicable)	5/18/1989, Revised 07/1998	41A	44A
Analytical Requirements/Laboratory Certification	Analytical Methods for Compliance and Limited Alternative Test Procedures Approvals (WSG 49)	12/27/1989	49	53
Analytical Requirements/Laboratory Certification	Clarification of Turbidity Requirements for Filtered Systems under the Surface Water Treatment Rule (SWTR)* (WSG 71)	12/1998	71	78
Analytical Requirements/Laboratory Certification	Analytical Methods Home Page via the Internet (WSG 115)	02/1994	115	130
Analytical Requirements/Laboratory Certification	Monitoring Requirements for Consecutive Public Water Systems (Surface Water Treatment Rule)* (WSG H28)	10/1998	H28	H30
Analytical Requirements/Laboratory Certification	State Programs for Laboratory Certification (WSG H31)	12/1990	H31	H33
Analytical Requirements/Laboratory Certification	Reporting Confluent Growth on Total Coliform Samples* (WSG H35)	08/1991	H35	H37
Analytical Requirements/Laboratory Certification	Lab Certification for Water Quality Parameters* (WSG H45)	07/1992	H45	H48
Capacity Development	Guidance on Implementing the Capacity Development Provisions of the Safe Drinking Water Act Amendments of 1996 (WSG 107)	07/1998	107	122
Capacity Development	Hypothetical State Programs for Ensuring that All New CWSs and NTNCWSs Demonstrate Technical, Managerial and Financial Capacity (WSG 108)	07/1998	108	123
Capacity Development	Information for the Public on Participating with States in Preparing Capacity Development Strategies (WSG 109)	07/1998	109	124
Capacity Development	Information for States on Implementing the Capacity Development Provisions of the Safe Drinking Water Act Amendments of 1996 (WSG 110)	07/1998	110	125
Capacity Development	Eligibility of Routine Compliance Monitoring Costs Under the Drinking Water State Revolving Fund Capacity Development Set-Aside (WSG 168)	9/4/2003	168	168
Capacity Development	Modification of Policy Regarding Use of the Drinking Water State Revolving Fund Capacity Development Set-Aside for Routine Compliance Monitoring (WSG 168A)	5/18/2004	168A	168A
Capacity Development	Release of the Capacity Development Program Evaluation Tool (WSG 179)	11/1/2007	179	179S
Capacity Development	Update to the Implementation of Capacity Development & Drinking Water State Revolving Fund Programs to Reflect the New Enforcement Policy & Enforcement Targeting Tool* (WSG 188)	3/30/2012	188	188
Chemicals Other Than Lead & Copper	Procedures for Rounding-Off Analytical Data to Determine Compliance with Maximum contaminant Levels Present in NIPDWR* (WSG 20)	4/6/1981	20	21
Chemicals Other Than Lead & Copper	Response to Questions Raised by Region IV Concerning Public Notification Requirements for the Unregulated Contaminants* (WSG 38)	4/27/1988	38	40
Chemicals Other Than Lead & Copper	Region V's Approach on Unregulated Contaminant Public Notification Requirements* (WSG 51)	12/1/1989	51	51
Chemicals Other Than Lead & Copper	Unregulated Contaminant Public Notification Requirements* (WSG 51A)	10/4/1989	51A	51A
Chemicals Other Than Lead & Copper	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 51B)	5/7/1990	51B	51B
Chemicals Other Than Lead & Copper	Final Guidance for State Sampling Waiver Programs (WSG 66)	8/25/1992	66	71
Chemicals Other Than Lead & Copper	Guidance and Clarification on the Use of Detection Limits in Compliance Monitoring (WSG 70)	12/16/1993	70	77
Chemicals Other Than Lead & Copper	Clarification on Chlorination BAT for Cyanide* (WSG 72)	3/7/1994	72	79
Chemicals Other Than Lead & Copper	State Reporting Guidance for Unregulated Contaminant Monitoring (this guidance may be updated)* (WSG 84)	8/1994	84	84
Chemicals Other Than Lead & Copper	Alternative Monitoring Guidelines (WSG 99)	8/1997	99	112
Chemicals Other Than Lead & Copper	Calculation of Compliance for the New Arsenic MCL (WSG 151)	2/7/2015	151	151
Chemicals Other Than Lead & Copper	Implementation Guidance for the Arsenic Rule (WSG 159)	2/7/2015	159	159
Chemicals Other Than Lead & Copper	Implementation Guidance for the Arsenic Rule: Appendix G: Exemptions and the Arsenic Rule (WSG 160)	2/7/2015	160	160
Chemicals Other Than Lead & Copper	Determination of Vulnerability to VOCs (WSG H9)	7/1988	H9	H9
Chemicals Other Than Lead & Copper	Possible Toxicity of Aluminum* (WSG H25)	3/1990	H25	H26
Chemicals Other Than Lead & Copper	VOC Monitoring Requirements and the Blending of Separate Water Supply Sources as a Form of Treatment (WSG H30)	08/1990, Revised 02/1999	H30	H32
Chemicals Other Than Lead & Copper	Secondary MCL Range for Aluminum (this guidance may be updated)*(WSG H36)	8/1991	H36	H38
Chemicals Other Than Lead & Copper	Monitoring for Unregulated Contaminants* (WSG H46)	7/1992	H46	H49
Chemicals Other Than Lead & Copper	Variances and Exemptions for Fluoride Revised in the Phase II Rule (WSG H49)	7/1992	H49	H52
Chemicals Other Than Lead & Copper	Reporting Chemical/Radionuclide Maximum Contaminant Level Violations to SDWIS/Fed with Appropriate compliance Period End Dates* (WSG 192)	2/20/2014	192	192
Chemicals Other Than Lead & Copper	Use of Total Nitrate and Nitrite Analysis for Compliance Determinations with the Nitrate Maximum Contaminant Level (WSG 213)	11/30/2020	213	213
Direct Implementation	Water Supply Guidance Direct Implementation Programs -- 4 Programmatic Issues* (WSG 24)	1/25/1985	24	25
Direct Implementation	Final Allotments for the FY2019 Public Water System Supervision (PWSS) State and Tribal Support Program Grants	5/16/2019	202	202
Direct Implementation	Drinking Water Infrastructure Grants Tribal Set-Aside Program Revised Guidelines, Final	10/1998	122	122
Direct Implementation	Drinking Water Territorial Set-Aside Program and Release of Funds*	10/23/1998	123	123
Direct Implementation	Drinking Water Infrastructure Grants - Territorial Set-Aside Program*	11/17/1998	124	124
Direct Implementation	Policy for Calculation of the Public Water System Supervision* (PWSS) States Grant Allotments - FY2000 and Beyond	11/18/1998	125	125
Direct Implementation	Final Guidance on EPA's Grants to Support Tribal PWSS Program*	5/28/2002	156	156
Disinfection	Problems Associated with Disinfection Changes*	1/27/1983 Revised 12/1999	21	22
Disinfection	Delegations of Authority for the Public Water Systems Supervision Program*	7/23/1990	55	60
Disinfection	Use of Water Treatment Chemicals and Operation of Public Water Systems During Emergencies*	08/06/1990, Revised 07/28/1997	56	61
Disinfection	MIOX Monitoring Requirements Under the Stage I DBPR*	7/18/2001	140	140
Disinfection	Final Implementation Guidance - IESWTR and Stage I Disenfectants and DBP Rule (memo + guidance)*	10/3/2001	145	145
Disinfection	OGWDW Review of Small System Monitoring Requirements Under the Long Term 2 Enhanced Surface Water Treatment Rule*	2/4/2010	180	180
Disinfection	Eligibility for States to Use Drinking Water State Revolving Fund Capacity Development Set-Aside for LT2 Cryptosporidium Monitoring*	3/1/2010	181	181
Disinfection	Renewal of Designation of Regional Counsels to Concur in Determinations on State PWS Primacy Revisions under the Safe Drinking Water Act*	8/10/2012	214	214
Drinking Water State Revolving Fund (DWSRF)	Compliance Determination for Inactivation Requirements of the National Primary Drinking Water Regulations when a Public Water Systems Uses Dichlor and Trichlor for Primary Disinfection	4/18/2018	203	203
Drinking Water State Revolving Fund (DWSRF)	Eligibility of Routine Compliance Monitoring Costs Under the Drinking Water State Revolving Fund Capacity Development Set-Aside	9/4/2003	168	168
Drinking Water State Revolving Fund (DWSRF)	Modification of Policy Regarding Use of the Drinking Water State Revolving Fund Capacity Development Set-Aside for Routine Compliance Monitoring	5/18/2004	168A	168A
Drinking Water State Revolving Fund (DWSRF)	Eligibility for States to Use Drinking Water State Revolving Fund Capacity Development Set-Aside for LT2 Cryptosporidium Monitoring*	3/1/2010	181	181
Emergency Action And Planning	Guidelines for Preparation and Review of State Emergency Plans	10/29/1976	4	4
Emergency Action And Planning	Emergency Disinfection of Drinking Water - Boiling	05/08/1978 Revised 04/17/1998	11	11
Emergency Action And Planning	Use of Water Treatment Chemicals and Operation of Public Water Systems During Emergencies*	08/06/1990 Revised 07/28/1997	56	61
Emergency Action And Planning	Updated Guidance on Emergency Authority Under Section 1431 of the Safe Drinking Water Act* (Supersedes the 1991 Guidance WSG#63)	5/30/2018	210	63
Emergency Action And Planning	Boiling Water Time for Killing Pathogens*	2/23/1988	118	134
Enforcement	Approval of State Programs for Primary Enforcement Authority Under Subpart B of the Safe Drinking Water Act*	11/29/1976 Revised 11/1998	5	5
Enforcement	Implementation of the Safe Drinking Water Act (SDWA) Public Water System Supervision (PWSS) Program* (WSG 215) (pdf) (348.04 KB)	8/1/2021	215	215
Enforcement	Indian Policy Implementation Guidance*	11/8/1984	22	23
Enforcement	Policy Against "No Action" Assurances	11/16/1984	23	24
Enforcement	Direct Implementation - 4 Programmatic Issues*	1/25/1985	24	25
Enforcement	Division of Penalties with State and Local Governments	10/30/1985	25	26
Enforcement	Guidance for FY 1987 PWSS Enforcement Agreement	8/8/1986	26	27
Enforcement	Revised Policy Framework for State/EPA Enforcement Agreements	8/25/1986	27	28
Enforcement	Guidance for the FY 1988 State/EPA Enforcement Agreements Process	3/31/1987	29	31
Enforcement	Guidance for FY 1988 PWSS Enforcement Agreements	6/16/1987	29A	31A
Enforcement	Lead Ban -- Effective Date and Enforcement*	4/23/1987	30	32
Enforcement	Supplemental Guidance on the Issuance of Administrative Orders in the PWSS and UIC Programs	8/10/1987	31	33
Enforcement	Procedures for Issuing Complaints for Penalties for Violations of PWSS Administrative Orders	2/23/1988	33	35
Enforcement	Policy on Publicizing Enforcement Activities*	3/25/1988	34	37
Enforcement	Policy on Publicizing Enforcement Activities*	11/21/1985	35	37A
Enforcement	Press Release Policy*	1/30/1985	35A	37B
Enforcement	Enforcement Actions Against Systems which are "Intermittent" Violators of Administrative Orders	4/12/1988	36	38
Enforcement	Coordination with State Officials on the Issuance of Notices of Violations Under Section 1414 of the SDWA	4/21/1988	37	39
Enforcement	The SDWA Lead Ban* (WSG 40)	12/07/1988 Revised 06/01/98	40	43
Enforcement	Implementation and Enforcement of the Lead Prohibition and Lead Public Notification Requirements of the SDWA in Fiscal Years 1990 and Beyond* (WSG 44)	8/18/1989	44	47
Enforcement	Implementation of Enforcement Provisions in the EPA Federal Facilities Compliance Strategy* (WSG 47)	11/15/1989	47	50
Enforcement	Multi-Media Settlements of Enforcement Claims (WSG 50)	2/6/1990	50	54
Enforcement	Change in the PWSS Program's Definition of Timely and Appropriate Action (WSG 52)	4/20/1990	52	56
Enforcement	Revised Definition of Significant Noncomplier (SNC) and the Model for Escalating Responses to Violators for the PWSS Program (WSG 53)	5/22/1990	53	57
Enforcement	Delegations of Authority for the Public Water System Supervision Program* (WSG 55)	7/23/1990	55	60
Enforcement	Tracking Compliance with Administrative Orders in the PWSS and UIC Programs (WSG 57)	8/23/1990	57	62
Enforcement	Final SNC Definition for the TCR and Proposed SNC Definition for the SWTR* (WSG 58)	12/19/1990	58	63
Enforcement	Interim Policy on the Inclusion of Pollution Prevention and Recycling Provisions in Enforcement Settlements (WSG 59)	2/25/1991	59	64
Enforcement	Final SNC Definition for the SWTR* (WSG 60)	2/28/1991	60	65
Enforcement	Updated Guidance on Emergency Authority Under Section 1431 of the Safe Drinking Water Act* (Supersedes the 1991 Guidance WSG#63)	5/30/2018	210	63
Enforcement	Guidance on Enforcement of the Requirements of the Surface Water Treatment Rule* (WSG 65)	6/26/1992	65	70
Enforcement	Enforceability of Filtration Determinations Under the SWT Regulation* (WSG 72)	11/30/1992	72	72
Enforcement	Guidance on Section 1 of the Civil Justice Reform Executive Order No. 12778 (WSG 69)	4/8/1993	69	75
Enforcement	New Public Water System Supervision Program Settlement Penalty Policy (WSG 74)	5/25/1994	74	81
Enforcement	Corrected Attachment 1 for PWSS Settlement Penalty Calculation Worksheet (WSG 76)	6/14/1994	76	83
Enforcement	Processing Requests for Use of Enforcement Discretion (WSG 78)	3/3/1995	78	86
Enforcement	Policy on Flexible State Enforcement Responses to Small Community Violations (WSG 81)	11/22/1995	81	91
Enforcement	Federal Register Notice, Part III: Incentives for Self-Policing: Discovery, Disclosure, Correction and Prevention of Violations (a.k.a "The Audit Policy") (WSG 82)	12/22/1995	82	93
Enforcement	Guidance on the Process for Review of Enforcement Actions Against Tribal Facilities* (WSG 84)	2/16/1996	84	95
Enforcement	Federal Register Notice, Part IV: Policy on Compliance Incentives for Small Businesses (WSG 89)	6/3/1996	89	102
Enforcement	Public Release of EPA Enforcement Information* (WSG 92)	8/15/1996	92	105
Enforcement	Delegation of Authorities Under Section 1445 of the 1996 SDWA Amendments Regarding Issuance of Information to Determine Compliance with the Act* (WSG 97)	7/7/1997	97	110
Enforcement	Requirements for State Administrative Penalty Authority under the SDWA 1996 (WSG 100)	8/1997	100	113
Enforcement	Issuance of Final Supplemental Environmental Projects Policy (WSG 105)	4/10/1998	105	119
Enforcement	Guidance on Federal Facility Penalty Order Authority Under the SDWA, as Amended in 1996 (WSG 106)	5/29/1998	106	121
Enforcement	Enforcement and Implementation of Section 1417 of the SDWA* (WSG 114)	9/24/1998	114	129
Enforcement	The Data Sharing Committee's Recommendations for Lead and Copper Rule Violation Reporting* (WSG 117A)	12/29/1998	117A	113A
Enforcement	Updated Procedures Concerning State Audit Privilege/Immunity Laws and Legislation* (WSG 126)	2/9/1999	126	126
Enforcement	Well Classification Guidance for Downhole Hydrocarbon/Water Separators; UIC Program Guidance #82* (WSG 132)	1/5/2000	132	132
Enforcement	Guidance Review for Reviewing Extension Requests Under 1412(b)(10) of the SDWA* (WSG 147)	11/16/2001	147	147
Enforcement	Definition of a Significant Non-Complier* (WSG 155)	3/28/2002	155	155
Enforcement	OECA Designation of Regional Counsel to Concur on State Primacy Matters Under the Safe Drinking Water Act (SDWA)* (WSG 172)	12/17/2003	172	172
Enforcement	Lead Ban Enforcement (WSG H5)*	04/1988	H5	H5
Enforcement	State Enforcement of the NSDWRs (WSG H6)	04/1988	H6	H6
Enforcement	Pipe Fittings Under the Lead Ban* (WSG H7)	05/1988	H7	H7
Enforcement	Effective Date of the Lead Ban* (WSG H11)	09/1988	H11	H11
Enforcement	Lead Ban Enforcement* (WSG H12)	09/1988	H12	H12
Enforcement	Effect of the Lead Ban on Sale of Plumbing Fixtures Containing Lead Solder* (WSG H16)	04/1988 Revised 06/01/98	H16	H16
Enforcement	Lead Ban* (WSG H19)	12/1988	H19	H19
Enforcement	Guidance for SDWA Primacy Agencies on How to Enter Resolving Action Codes into SDWIS for Past Public Notice Violations and Clarification on How to Address Public Notification Violations in Certain Circumstances* (WSG 185)	2/22/2011	185	185
Enforcement	Update to the Implementation of Capacity Development & Drinking Water State Revolving Fund Programs to Reflect the New Enforcement Policy & Enforcement Targeting Tool* (WSG 188)	3/30/2012	188	188
Enforcement	Guidance on How to Enter Resolving Action Codes for Certain Past Violations of the Consumer Confidence Reports Rule* (WSG 190)	5/9/2013	190	190
Enforcement	Reporting Chemical/Radionuclide Maximum Contaminant Level Violations to SDWIS/Fed with Appropriate compliance Period End Dates* (WSG 192)	2/20/2014	192	192
Enforcement	Renewal of Designation of Regional Counsels to Concur in Determinations on State PWS Primacy Revisions under the Safe Drinking Water Act*	8/10/2012	214	214
Enforcement	Changes to Enforcement Targeting Tool Point Assessments for Safe Drinking Water Act Public Notification Rule Violations that are More than Five Years Old (WSG 216) (pdf) (1.45 MB)	12/8/2020	216	216
Federal Facilities	Federal Facilities - Option for State Coverage Under Section 1413 of the Safe Drinking Water Act, As Amended (WSG 9)	11/9/1977	9	9
Federal Facilities	Implementation of Enforcement Provisions in the EPA Federal Facilities Compliance Strategy* (WSG 47)	11/15/1989	47	50
Federal Facilities	Corrosion Control Devices and the PWS Program (WSG H24)	03/1990	H24	H25
Federal Facilities	State Primacy over Federal Facilities (WSG H37)	8/1991	H37	H39
Grants	Final Allotments of FY 2018 and FY 2019 Appropriations for WIIN 2107 (Testing in Schools) (WSG 207)	04/29/2019	207	207
Grants	Final Allotments of FY 2018 and FY 2019 Appropriations for WIIN 2104 (Small and Disadvantaged Communities) (WSG 208)	04/29/2019	208	208
Grants	Guidance on Allowable Costs for State PWSS Program Grants (WSG 7)	12/13/1976	7	7
Grants	Final Allotments of the FY2019 Public Water System Supervision (PWSS) State and Tribal Support Program Grants	05/16/2019	202	202
Grants	Guidance on Allowable Costs for State PWSS Program Grants (WSG 7A)	3/11/1977	7A	7A
Grants	Grant Allocation (WSG 13)	8/1/1978	13	13
Grants	Use of Grant Funds for Data Management Activities (WSG 19)	1/24/1980	19	20
Grants	Policy on Regional Response to a State which Decides to Accept the Five Percent Reduction in its PWSS Program Grant* (WSG 39)	9/16/1988	39	41
Grants	Delegations of Authority for the Public Water System Supervision Program* (WSG 55)	7/23/1990	55	60
Grants	Revised Uses, Distribution and Timing of Indian Land PWSS Grant Funds* (WSG 80)	6/26/1995	80	90
Grants	Recommendations for Approval of Proposed Additions to the EPA Operator Certification Guidelines and the Proposed Allocation Methodology for Funding to States the Operator Certification Expense Reimbursement Grants Program - TRANSMITTAL MEMORANDUM* (WSG 135)	6/26/2000	135	135
Grants	Expense Reimbursement Grants for the Operator Certification Program* (WSG 148)	11/29/2001	148	148
Grants	Final Guidance on EPA's Grants to Support Tribal PWSS Program* (WSG 156)	5/28/2002	156	156
Grants	Applicability of the Safe Drinking Water Act to Point of Use Treatment Devices in Public Water Supplies (pdf) (356.7 KB, Dec. 15, 2022) (Supersedes WSG #s 8A and H26)	12/2022	217
Indian Land Issues	Indian Reservations--Distinction Between EPA Jurisdiction Over Public Water Systems and State Jurisdiction* (WSG 1)	3/1/1976	1	1
Indian Land Issues	Final Allotments for the FY2019 Public Water System Supervision (PWSS) State and Tribal Support Program Grants	05/16/2019	202	202
Indian Land Issues	Questions and Answers on Non-Indian Water Supply Situations* (WSG 14)	1/8/1979	14	15
Indian Land Issues	Indian Policy Implementation Guidance* (WSG 22)	11/8/1984	22	23
Indian Land Issues	Final Guidance on Implementing Primacy Rule for the PWSS and UIC Programs* (WSG 42)	4/25/1989	42	45
Indian Land Issues	Additional Guidance on Implementing the Indian Primacy Rule for the PWSS and UIC Programs* (WSG 43)	4/25/1989	43	46
Indian Land Issues	Delegations of Authority for the Public Water System Supervision Program* (WSG 55)	7/23/1990	55	60
Indian Land Issues	EPA Indian Policy (WSG 73)	3/14/1994	73	80
Indian Land Issues	Revised Uses, Distribution and Timing of Indian Land PWSS Grant Funds* (WSG 80)	6/26/1995	80	90
Indian Land Issues	Guidance on the Process for Review of Enforcement Actions Against Tribal Facilities* (WSG 84)	2/16/1996	84	95
Indian Land Issues	Drinking Water Territorial Set-Aside Program and Release of Funds* (WSG 123)	10/23/1998	123	123
Indian Land Issues	Drinking Water Infrastructure Grants - Territorial Set-Aside Program* (WSG 124)	11/17/1998	124	124
Indian Land Issues	Policy for Calculation of the Public Water System Supervision* (PWSS) States Grant Allotments - FY2000 and Beyond (WSG 125)	11/18/1998	125	125
Indian Land Issues	Request for Deviation for 40 CFR 35.115 (e) and (h)* (WSG 127)	6/25/1999	127	127
Indian Land Issues	Final Guidance on EPA's Grants to Support Tribal PWSS Program* (WSG 156)	5/28/2002	156	156
Indian Land Issues	Standard Operating Procedures for EPA's Tribal Drinking Water Program* (WSG 183)	3/11/2010	183	183
Indian Land Issues	Renewal of Designation of Regional Counsels to Concur in Determinations on State PWS Primacy Revisions under the Safe Drinking Water Act*	8/10/2012	214	214
Information Collection Rule (ICR)	Information Collection Requirements Rule--Protozoa and Enteric Virus Sample Collection Procedures (pocket guide) (WSG 79)	06/1995	79	89
Information Collection Rule (ICR)	ICR Manual for Bench- and Pilot-Scale Treatment Studies (WSG 83)	01/1996	83	94
Information Collection Rule (ICR)	DBP/ICR Analytical Methods Manual (WSG 85)	04/1996	85	96
Information Collection Rule (ICR)	ICR Microbial Laboratory Manual (WSG 86)	04/1996	86	97
Information Collection Rule (ICR)	ICR Sampling Manual (WSG 87)	04/1996	87	98
Information Collection Rule (ICR)	ICR Water Utility Database System User's Guide (WSG 88) (Manual and 6 disks, Release 1.1: Instructions and 3 disks)	04/1996 9/1/1996	88	99
Information Collection Rule (ICR)	ICR Reference Manual: Understanding the ICR (WSG 91)	08/1996	91	104
Information Collection Rule (ICR)	ICR Laboratory Quality Control (QC) Users' Guide (Manual and 5 disks) (WSG 93)	11/1996	93	106
Information Collection Rule (ICR)	ICR Treatment Studies Data Collection Spreadsheets User's Guide (manual and 4 disks) (WSG 95)	04/1997	95	108
Interpretation Of The Safe Drinking Water Act And Regulations	Applicability of the Safe Drinking Water Act to Point of Use Treatment Devices in Public Water Supplies (pdf) (356.7 KB, Dec. 15, 2022) (Supersedes WSG #s 8A and H26)	12/2022	217
Interpretation Of The Safe Drinking Water Act And Regulations	Hand-Pumped Wells (WSG 2)	05/17/1976 Revised 04/08/1998	2	2
Interpretation Of The Safe Drinking Water Act And Regulations	Implementation of the Safe Drinking Water Act (SDWA) Public Water System Supervision (PWSS) Program* (WSG 215) (pdf) (348.04 KB, 8/1/2021, WSG 215)	8/1/2021	215	215
Interpretation Of The Safe Drinking Water Act And Regulations	Status of Water Vending Machines Under P.L. 93-523	07/26/1976 Revised 11/1998	3	3
Interpretation Of The Safe Drinking Water Act And Regulations	Water Hauler (WSG 6)	12/3/1976	6	6
Interpretation Of The Safe Drinking Water Act And Regulations	Applicability of the Safe Drinking Water Act to Water Haulers (WSG 6A)	11/26/1976	6A	6A
Interpretation Of The Safe Drinking Water Act And Regulations	Application of the SDWA to Persons Adding Corrosion Reducing Chemicals to Drinking Water* (WSG 8)	12/20/1976	8	8
Interpretation Of The Safe Drinking Water Act And Regulations	Application of the SDWA to Persons Adding Corrosion Reducing Chemicals to Drinking Water* (WSG 8A)	12/08/1976 Revised 11/1998	8A	8A
Interpretation Of The Safe Drinking Water Act And Regulations	Definition of a Public Water System (WSG 12)	7/12/1978	12	12
Interpretation Of The Safe Drinking Water Act And Regulations	May a Community Public Water System Raise the Defense in an Enforcement Proceeding that it is not a "Public Water System," Under '1401(4) of the SDWA, Because it Does not Provide Water for Human Consumption? (WSG 12A)	6/20/1978	12A	12A
Interpretation Of The Safe Drinking Water Act And Regulations	Definition of a Non-Transient Non-Community Water System (WSG 32)	9/16/1987	32	34
Interpretation Of The Safe Drinking Water Act And Regulations	Response to Charles Mahan Regarding Use of Bottled Water by Non-Transient Non-Community Water Systems to Achieve Compliance (WSG 48)	12/14/1989	48	52
Interpretation Of The Safe Drinking Water Act And Regulations	Policy for Applicability of the SWT Regulation to Seawater* (WSG 61)	7/18/1991	61	66
Interpretation Of The Safe Drinking Water Act And Regulations	Definitions of Types of Public Water Systems and Populations Served by Those Systems (WSG 61A)	8/21/1991	61A	66A
Interpretation Of The Safe Drinking Water Act And Regulations	Federal Register part VI: Notice: Definition of a Public Water System in SDWA Section 1401(4) as Amended by the 1996 SDWA Amendments (WSG 112)	8/5/1998	112	127
Interpretation Of The Safe Drinking Water Act And Regulations	Section 301 of the SDWA Amendments of 1996 (WSG 120)	10/29/1996	120	120
Interpretation Of The Safe Drinking Water Act And Regulations	Implementation of Interim Primacy Provision Sec. 1413 of the SDWA Amendments (DRAFT) (WSG 121)	1998	121	121
Interpretation Of The Safe Drinking Water Act And Regulations	Issues in Potable Reuse (WSG 131)	10/1999	131	131
Interpretation Of The Safe Drinking Water Act And Regulations	Guidance Review for Reviewing Extension Requests Under 1412(b)(10) of the SDWA* (WSG 147)	11/16/2001	147	147
Interpretation Of The Safe Drinking Water Act And Regulations	Source Water Assessment and Protection (WSG 163)	2/8/2003	163	163
Interpretation Of The Safe Drinking Water Act And Regulations	Potable Water Heat Exchangers (WSG 170)	9/23/2003	170	170
Interpretation Of The Safe Drinking Water Act And Regulations	Applicability of the Safe Drinking Water Act to Submetered Properties (WSG 171)	12/16/2003	171	171
Interpretation Of The Safe Drinking Water Act And Regulations	Definition of Service Connection (WSG H3)	01/1988	H3	H3
Interpretation Of The Safe Drinking Water Act And Regulations	Scope of NPDWR Coverage (WSG H10)	06/1988	H10	H10
Interpretation Of The Safe Drinking Water Act And Regulations	Purpose and Applicability of Maximum Contaminant Level Goals(MCLGs) (WSG H14)	09/19-88	H14	H14
Interpretation Of The Safe Drinking Water Act And Regulations	Determination of MCLGs and MCLs (WSG H15)	10/1998	H15	H15
Interpretation Of The Safe Drinking Water Act And Regulations	Definition of a PWS (Homes with Individual Wells) (WSG H18)	12/1988 Revised 06/1998	H18	H18
Interpretation Of The Safe Drinking Water Act And Regulations	Meaning of "Human Consumption" and "Graywater Uses" as it Relates to Public Water Systems (WSG H21)	08/1989	H21	H22
Interpretation Of The Safe Drinking Water Act And Regulations	Treatment Facilities as Public Water Suppliers (WSG H26)	03/1990 Revised 07/01/1998	H26	H27
Interpretation Of The Safe Drinking Water Act And Regulations	Health Advisory for Zinc (WSG H34)	08/1991	H34	H36
Interpretation Of The Safe Drinking Water Act And Regulation	Incremental Service Connections (WSG H44)	06/1992	H44	H47
Interpretation Of The Safe Drinking Water Act And Regulations	Sodium Requirements for Public Water Supplies (WSG H48)	06/1992	H48	H51
Interpretation Of The Safe Drinking Water Act And Regulations	Definitions of Conventional Filtration Treatment and Direct Filtration (WSG 184)	6/9/2009	184	184
Interpretation Of The Safe Drinking Water Act And Regulations	Stage 1 and Stage 2 Disinfectants and Disinfection Byproducts Rules (DBPRS) - 100% Purchasing Consecutive System TTHM and HAA5 Reduced Monitoring Qualifications Clarification (WSG 186)	2/2/2012	186	186
Interpretation Of The Safe Drinking Water Act And Regulations	SDWA - Compliance Monitoring Transition Period between the Stage 1 and Stage 2 Disinfectants and Disinfection Byproducts Rules and Extension Requests (WSG 187)	2/13/2012	187	187
Interpretation Of The Safe Drinking Water Act And Regulations	Standard Definitions for the Five Source Availability codes in the SDWIS, and Recommendations for Baseline and Routine Monitoring* (WSG 191)	5/16/2013	191	191
Interstate Carrier Conveyances	Guidance for Operation and Maintenance (O&M) Plans for ICCs (WSG 16)	6/20/1979	16	17
Lead & Copper Control Issues	Lead and Copper Rule Requirements for Optimal Corrosion Control Treatment for Large Drinking Water Systems	11/03/2015	196	196
Interstate Carrier Conveyances	Plan for EPA Implementation of the Safe Drinking Water Act on Interstate Carrier Conveyances (WSG 28)	10/1/1986	28	29
Interstate Carrier Conveyances	Interstate Carriers (WSG H2)	09/1987	H2	H2
Interstate Carrier Conveyances	Scope of NPDWR Coverage (WSG H10)	06/1988	H10	H10
Interstate Carrier Conveyances	Process to Identify and Quantify Violations of the Aircraft Drinking Water Rule	02/2012	209	209
Interstate Carrier Conveyances	Aircraft Drinking Water Rule: Moving aircraft into a "Pending Bin" in the Aircraft Reporting and Compliance System due to bankruptcy or other changes in operations	08/25/2015	205	205
Interstate Carrier Conveyances	Five Year Self-Inspection Requirements under the Aircraft Drinking Water Rule	04/18/2017	206	206
Lead & Copper Control Issues	Clarification of Recommended Tap Sampling Procedures for Purposes of the Lead and Copper Rule	02/29/2016	197	197
Lead & Copper Control Issues	Implementation of the Lead and Copper Rule Provisions Related to Sample Site Selection and Triennial Monitoring	10/13/2016	200	200
Lead & Copper Control Issues	Application of the SDWA to Persons Adding Corrosion Reducing Chemicals to Drinking Water* (WSG 8)	12/20/1976	8	8
Lead & Copper Control Issues	Application of the SDWA to Persons Adding Corrosion Reducing Chemicals to Drinking Water* (WSG 8A)	12/08/1976 Revised 11/1998	8A	8A
Lead & Copper Control Issues	Lead Ban -- Effective Date and Enforcement* (WSG 30)	4/23/1987	30	32
Lead & Copper Control Issues	Handbook for Special Public Notification for Lead: For Public Drinking Water Suppliers (WSG 36)	3/1/1988	36	36
Lead & Copper Control Issues	Policy on Regional Response to a State which Decides to Accept the Five Percent Reduction in its PWSS Program Grant* (WSG 39)	9/16/1988	39	41
Lead & Copper Control Issues	The SDWA Lead Ban* (WSG 40)	12/07/1988 Revised 06/01/1998	40	43
Lead & Copper Control Issues	Scope of Remedial Action Programs in Schools Under the Lead Contamination Control Act of 1988 (WSG 41)	03/17/1989 Revised 06/1998	41	44
Lead & Copper Control Issues	Lab Certification for Lead Contamination Control Act (LCCA)* (No longer applicable)	05/18/1989 Revised 07/1998	41A	44A
Lead & Copper Control Issues	Implementation and Enforcement of the Lead Prohibition and Lead Public Notification Requirement of the SDWA in Fiscal Years 1990 and Beyond* (WSG 44)	8/18/1989	44	47
Lead & Copper Control Issues	Lead and Copper Rule Guidance Manual: Volumes 1 and 2 (WSG 67)	09/1991 09/1992	67	67
Lead & Copper Control Issues	Clarification of Lead Service Line Replacement Requirements in Lead Drinking Water Rule (WSG 76)	07/23/1993 Revised 06/01/1998	76	76
Lead & Copper Control Issues	Schedule for Reduced Monitoring under the Lead and Copper Rule (WSG 77)	10/20/1994	77	85
Lead & Copper Control Issues	Consecutive Systems Regulated Under the National Primary Drinking Water Regulations for Lead and Copper (WSG 77A)	1/10/1992	77A	85A
Lead & Copper Control Issues	All Plastic Systems - Compliance with the Lead and Copper Rule (WSG 87)	4/4/1995	87	87
Lead & Copper Control Issues	Enforcement and Implementation of Section 1417 of the Safe Drinking Water Act* (WSG 114)	9/24/1998	114	129
Lead & Copper Control Issues	Approval of Data Sharing Committee Recommendations for Lead and Copper* (WSG 117)	4/1/1999	117	133
Lead & Copper Control Issues	The Data Sharing Committee's Recommendations for Lead and Copper Rule Violation Reporting* (WSG 117A)	12/29/1998	117A	133A
Lead & Copper Control Issues	How to Determine Compliance with Optimal Water Quality Parameters as Revised by the LCRMR* (WSG 138)	1/1/2002	138	138
Lead & Copper Control Issues	State Implementation Guidance for the Lead and Copper Rule Minor Revisions (LCRMR)* (WSG 144)	10/1/2001	144	144
Lead & Copper Control Issues	Lead and Copper Monitoring and Reporting Guidelines for PWS* (WSG 153)	2/2/2015	153	153
Lead & Copper Control Issues	Lead in Drinking Water Regulation: Public Education Guidance* (WSG 157)	6/2/2015	157	157
Lead & Copper Control Issues	Revised Guidance Manual for Selecting Lead and Copper Control Strategies* (WSG 164)	3/3/2015	164	164
Lead & Copper Control Issues	Sampling for NTNCW PWSs under the LCR* (WSG 167)	5/6/2003	167	167
Lead & Copper Control Issues	Compliance Calculations Under the Lead & Copper Rule* (WSG 173)	3/9/2004	173	173
Lead & Copper Control Issues	Lead and Copper Rule - Clarification of Requirements for Collecting Samples and Calculating Compliance* (WSG 174)	11/23/2004	174	174
Lead & Copper Control Issues	Issues with Lead Service Line Replacement* (WSG 177)	3/23/2005	177	177
Lead & Copper Control Issues	Management of Aerators during Collection of Tap Samples to Comply with the Lead and Copper Rule* (WSG 178)	10/20/2006	178	178
Lead & Copper Control Issues	Release of the Capacity Development Program Evaluation Tool* (WSG 179)	11/1/2007	179	179
Lead & Copper Control Issues	Public Notification Requirements: Supplemental Notices/Lead* (WSG H4)	02/1988	H4	H4
Lead & Copper Control Issues	Lead Ban Enforcement (WSG H5)*	04/1988	H5	H5
Lead & Copper Control Issues	Pipe Fittings Under the Lead Ban* (WSG H7)	05/1988	H7	H7
Lead & Copper Control Issues	Public Notification Requirements: Lead Notice/Consecutive Systems* (WSG H8)	06/1988	H8	H8
Lead & Copper Control Issues	Effective Date of the Lead Ban* (WSG H11)	09/1988	H11	H11
Lead & Copper Control Issues	Lead Ban Enforcement* (WSG H12)	09/1988	H12	H12
Lead & Copper Control Issues	Effect of the Lead Ban on Sale of Plumbing Fixtures Containing Lead Solder* (WSG H16)	10/1988 Revised 06/01/1998	H16	H16
Lead & Copper Control Issues	Household Refrigerators and Lead Contamination (WSG H17)	10/1988	H17	H17
Lead & Copper Control Issues	Lead Ban* (WSG H19)	12/1988	H19	H19
Lead & Copper Control Issues	Lead Ban (WSG H20)	02/1989	H20	H20
Lead & Copper Control Issues	Wilson's Disease and Copper (WSG H38)	08/1991	H38	H40
Lead & Copper Control Issues	Faucets Interpreted as "Lead Pipe Fittings" (WSG H40)	12/1991	H40	H43
Lead & Copper Control Issues	Lead Action Level Versus LCCA Guidance Level (WSG H41)	12/1991	H41	H44
Lead & Copper Control Issues	Adverse Health Effects of Lead and Copper from Avenues Other Than Ingestion (WSG H42)	06/1992	H42	H45
Lead & Copper Control Issues	Geographic Distribution of Sample Sites for Lead and Copper (WSG H43)	06/1992	H43	H46
Lead & Copper Control Issues	Laboratory Certification for Water Quality Parameters* (WSG H45)	06/1992	H45	H48
Lead & Copper Control Issues	Applicability of the Safe Drinking Water Act to Point of Use Treatment Devices in Public Water Supplies (pdf) (356.7 KB, Dec. 15, 2022) (Supersedes WSG #s 8A and H26)	12/2022	217
Microbiological Regulations	Long Term 2 Enhanced Surface Water Treatment Rule Second Round Source Water Monitoring and Bin Placement (WSG 198)	4/8/2016	198	198
Microbiological Regulations	Requirements and State Reporting Guidance to Transition Public Water Systems from the Total Coliform Rule to the Revised Total Coliform Rule (PDF) (WSG 199)	12/4/2015	199	199
Microbiological Regulations	Problems Associated with Disinfectant Changes* (WSG 21)	1/27/1983 Revised 12/1999	21	22
Microbiological Regulations	Guidance Manual for Compliance with the Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources (WSG 46)	10/1989	46	49
Microbiological Regulations	Surface Water Treatment Rule: Implementation Manual (Including Appendix D)* (WSG 51)	03/1990	51	55
Microbiological Regulations	Final SNC Definition for the TCR and Proposed SNC Definition for the SWTR* (WSG 58)	12/19/1990	58	63
Microbiological Regulations	Final SNC Definition for the SWTR* (WSG 60)	2/28/1991	60	65
Microbiological Regulations	Policy for Applicability of the SWT Regulation to Seawater (WSG 61)	7/18/1991	61	66
Microbiological Regulations	Opportunity for Public Hearing in Conjunction with Filtration Decisions* (WSG 64)	1/3/1992	64	69
Microbiological Regulations	Guidance on Enforcement of the Requirements of the Surface Water Treatment Rule* (WSG 65)	6/26/1992	65	70
Microbiological Regulations	Enforceability of Filtration Determinations Under the SWT Regulation* (WSG 67)	11/30/1992	67	72
Microbiological Regulations	Clarification of Turbidity Requirements for Filtered Systems under the Surface Water Treatment Rule (SWTR)* (WSG 71)	2/1/1994	71	78
Microbiological Regulations	Requirement for a Public Water System Which Takes Fewer than Five Total Coliform Samples per Month to Undergo a Sanitary Survey (WSG 75)	6/1/1994	75	82
Microbiological Regulations	The Data Sharing Committee's Review of the Total Coliform Rule Data Needs and Safe Drinking Water Information System (SDWIS/FED) Reporting Requirements* (WSG 96)	6/11/1997	96	109
Microbiological Regulations	The Data Sharing Committee's Review of the SWTR Data Needs and SDWIS Reporting Requirements* (No longer applicable)	4/17/1998	120	120
Microbiological Regulations	Final Implementation Guidance - IESWTR and Stage I Disinfectants and DBP Rule (memo + guidance)* (WSG 145)	4/17/1998	145	145
Microbiological Regulations	A Small Systems Guide to the Total Coliform Rule* (WSG 158)	4/17/1998	158	158
Microbiological Regulations	LT1ESWTR Turbidity Provisions Technical Guidance Manual* (WSG 175)	4/17/1998	175	175
Microbiological Regulations	LT1ESWTR Implementation Guidance Manual* (WSG 176)	4/17/1998	176	176
Microbiological Regulations	Determination of MCLGs and MCLs (WSG H15)	10/1988	H15	H15
Microbiological Regulations	Monitoring Requirements for Consecutive Public Water Systems(Surface Water Treatment Rule) (WSG H30)	08/1990 Revised 12/99	H30	H30
Microbiological Regulations	Repeat Monitoring Requirements for the Total Coliform Rule (WSG H32)	02/1991	H32	H34
Microbiological Regulations	Applicability of the SWTR to Seawater Systems (WSG H33)	08/1991 Revised 12/1999	H33	H35
Microbiological Regulations	Reporting Confluent Growth on Total Coliform Samples* (WSG H35)	08/1991	H35	H37
Microbiological Regulations	Wilson's Disease and Copper (WSG H38)	08/1991	H38	H40
Microbiological Regulations	The Effectiveness of Slow Sand Filtration in Total Coliform Removal (WSG H39)	12/1991 Revised 12/1999	H39	H42
Microbiological Regulations	Process to Identify and Quantify Violations of the Aircraft Drinking Water Rule	02/2012	209	209
Point Of Entry Devices	Use of Point of Use and Point of Entry Devices (WSG 139)	3/19/2001	139	139
Point Of Entry Devices	Marketing and Advertising Tactics and Techniques(Point of use devices) (WSG H13)	09/1988	H13	H13
Point Of Entry Devices	Point-of-Entry Devices to Comply with the Total Coliform Rule, Surface Water Treatment Rule (SWTR), and the Interim Enhanced Surface Water Treatment Rule (IESWTR) (WSG H50)	12/1999	H50	H53
Point Of Entry Devices	Applicability of the Safe Drinking Water Act to Point of Use Treatment Devices in Public Water Supplies (pdf) (356.7 KB, Dec. 15, 2022) (Supersedes WSG #s 8A and H26)	12/2022	217
Primacy	Indian Reservations - Distinction Between EPA Jurisdiction Over Public Water Systems and State Jurisdiction* (WSG 1)	3/1/1976	1	1
Primacy	Implementation of the Safe Drinking Water Act (SDWA) Public Water System Supervision (PWSS) Program* (WSG 215) (pdf) (348.04 KB, 8/1/2021, WSG 215)	8/1/2021	215	215
Primacy	Approval of State Programs for Primacy Enforcement Authority under Subpart B of the Safe Drinking Water Act* (WSG 5)	11/29/1976 Revised 11/1998	5	5
Primacy	Questions and Answers on Non-Indian Water Supply Situations* (WSG 14)	1/8/1979	14	15
Primacy	Final Guidance on Implementing the Indian Primacy Rule for the PWSS and UIC Programs* (WSG 42)	4/25/1989	42	45
Primacy	Additional Guidance on Implementing the Indian Primacy Rule for the PWSS and UIC Programs* (WSG 43)	4/25/1989	43	46
Primacy	Surface Water Treatment Rule: Implementation Manual (including Appendix D)* (WSG 51)	3/1/1990	51	55
Primacy	Handbook for EPA Review of State Program Revisions under New Primacy regulations for the PWSS Program (WSG 54)	06/1990	54	58
Primacy	Delegations of Authority for the Public Water System Supervision Program* (WSG 60)	7/23/1990	60	60
Primacy	Final SNC Definition for the TCR and Proposed SNC Definition for the SWTR* (WSG 58)	12/19/1990	58	63
Primacy	Implementation of Interim Primacy Provision Under 1998 Sec. 1413 of the SDWA Amendments (DRAFT)* (WSG 121)	1998	121	121
Primacy	Updated Procedures Concerning State Audit Privilege/Immunity Laws and Legislation* (WSG 126)	2/9/1999	126	126
Primacy	OECA Designation of Regional Counsel to Concur on State Primacy Matters Under the Safe Drinking Water Act (SDWA)* (WSG 172)	12/17/2003	172	172
Primacy	Renewal of Designation of Regional Counsels to Concur in Determinations on State PWS Primacy Revisions under the Safe Drinking Water Act*	8/10/2012	214	214
Public Involvement	Guidance for Implementation of 40 CFR Part 25 - Public Participation Regulations in State PWSS Program (WSG 15)	05/21/1979 Revised 11/1998	15	16
Public Involvement	Policy on Publicizing Enforcement Activities* (WSG 34)	3/25/1988	34	37
Public Involvement	Policy on Publicizing Enforcement Activities* (WSG 35)	11/21/1985	35	37A
Public Involvement	Press Release Policy* (WSG 35A)	1/30/1985	35A	37B
Public Involvement	Opportunity for Public Hearing in Conjunction with Filtration Decisions* (WSG 64)	1/3/1992	64	69
Public Involvement	Public Release of EPA Enforcement Information* (WSG 92)	8/15/1996	92	105
Public Notification	Guidance on Implementation of the NIPDWRs, 40 CFR 141.31, 141.32, 141.33, and 141.34* (WSG 10)	12/28/1977	10	10
Public Notification	Response to Questions Raised by Region IV Concerning Public Notification Requirements for the Unregulated Contaminants* (WSG 38)	4/27/1988	38	40
Public Notification	Implementation and Enforcement of the Lead Prohibition and Lead Public Notification Requirement of the SDWA in Fiscal Years 1990 and Beyond* (WSG 44)	8/18/1989	44	47
Public Notification	General Public Notification for Public Water Systems (WSG 45)	9/1/1989	45	48
Public Notification	Region V's Approach on Unregulated Contaminants Public Notification Requirements* (WSG 51)	12/1/1989	51	51
Public Notification	Unregulated Contaminant Public Notification Requirements* (WSG 51A)	10/4/1989	51A	51A
Public Notification	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 51B)	5/7/1990	51B	51B
Public Notification	Consumer Confidence Report (CCR) Rule - Units for Reporting Detected Contaminants* (WSG 128)	6/29/1999	128	128
Public Notification	State Implementation Guidance for the CCR Rule + appendices* (WSG 129)	08/1999	129	129
Public Notification	Consumer Confidence Reports (CCR) on the Internet* (WSG 130)	9/30/1999	130	130
Public Notification	Public Notification Handbook* (WSG 134)	6/1/2000	134	134
Public Notification	Preparing Your Drinking Water CCR: Revised Guidance for Water Suppliers* (WSG 137)	1/1/2015	137	137
Public Notification	State Implementation Guidance for the Public Notification Rule* (WSG 143)	10/1/2001	143	143
Public Notification	Sensitive Data in Consumer Confidence Reports and Source Water Assessments* (WSG 149)	12/5/2001	149	149
Public Notification	Radionuclides in Drinking Water: A Small Entity Compliance Guide* (WSG 152)	2/2/2015	152	152
Public Notification	Final Implementation Guidance for Radionuclides* (WSG 154)	2/3/2015	154	154
Public Notification	Guidance for States on Reporting Data and Violations for the 2009 Consumer Confidence Report Calendar Year* (WSG 182)	3/11/2010	182	182
Public Notification	Determining MCLs for man-Made Radionuclides* (WSG H1)	09/1987	H1	H1
Public Notification	Public Notification Requirements: Supplemental Notices/Lead* (WSG H4)	02/1988	H4	H4
Public Notification	Public Notification Requirements: Lead Notice/Consecutive Systems* (WSG H8)	06/1988	H8	H8
Public Notification	Public Notification Requirements (WSG H23)	06/1988	H23	H24
Public Notification	Compliance for Gross Beta Particle Activity (WSG H27)	10/1989	H27	H28
Public Notification	NTNCWSs and Public Notification for Special Monitoring (WSG H29)	05/1990	H29	H31
Public Notification	Recordkeeping Requirements for Radionuclides (WSG H47)	10/198	H47	H50
Public Notification	Guidance for SDWA Primacy Agencies on How to Enter Resolving Action Codes into SDWIS for Past Public Notice Violations and Clarification on How to Address Public Notification Violations in Certain Circumstances* (WSG 185)	2/22/2011	185	185
Public Notification	SDWA - Consumer Confidence Report Rule Delivery Options (WSG 189)	2/22/2011	189	189
Public Notification	Implementation of the Public Notification Rule under the Safe Drinking Water Act (WSG 212)	9/16/2020	212
Public Notification	Changes to Enforcement Targeting Tool Point Assessments for Safe Drinking Water Act Public Notification Rule Violations that are More than Five Years Old (WSG 216) (pdf) (1.45 MB)	12/8/2020	216	216
PWSS AWIA	Implementation of Public Water System Supervision Related Safe Drinking Water Act Amendments in the America's Water Infrastructure Act of 2018	5/24/2020	211
PWSS AWIA	America's Water Infrastructure Act (AWIA) Section 2013 Fact Sheet (pdf) (355.15 KB, 08/29/2023)	08/29/2023	218
Public Notification	Guidance on How to Enter Resolving Action Codes for Certain Past Violations of the Consumer Confidence Reports Rule* (WSG 190)	5/9/2013	190	190
Radionuclides	Radionuclides in Drinking Water: A Small Entity Compliance Guide (WSG 152)	1/3/2013	152	152
Radionuclides	Final Implementation Guidance for Radionuclides (WSG 154)	3/2/2015	154	154
Radionuclides	Determining MCLs for Man-made Radionuclides (WSG H1)	09/1987	H1	H1
Radionuclides	Compliance for Gross Beta Particle Activity (WSG H27)	05/1990 Revised 10/1998	H27	H28
Radionuclides	Recordkeeping Requirements for Radionuclides* (WSG H47)	06/1992	H47	H50
Radionuclides	Reporting Chemical/Radionuclide Maximum Contaminant Level Violations to SDWIS/Fed with Appropriate compliance Period End Dates* (WSG 192)	2/20/2014	192	192
Reporting, Record Keeping And Data Management Requirements	Guidance on Implementation of the NIPDWRs, 40 CFR 141.31, 141.32, 141.33, and 141.34* (WSG 10)	12/28/1977	10	10
Reporting, Record Keeping And Data Management Requirements	State Reporting Guidance for Unregulated Contaminant Monitoring* (WSG 84)	08/1994	84	84
Reporting, Record Keeping And Data Management Requirements	Revised Inventory Reporting Requirements for the SDWIS/FED - Technical Guidance* (WSG 111)	7/10/1998	111	126
Reporting, Record Keeping And Data Management Requirements	EPA Protocol for Participation in a PWSS Program Data Verification	Not Available	119	135
Reporting, Record Keeping And Data Management Requirements	Consumer Confidence Report (CCR) Rule - Units for Reporting Detected Contaminants (WSG 128)	6/29/1999	128	128
Reporting, Record Keeping And Data Management Requirements	Consumer Confidence Reports (CCR) on the (WSG 130)	9/30/1999	130	130
Reporting, Record Keeping And Data Management Requirements	Interim Data Security Procedures for Handling State Source Water Assessment Polygon Data* (WSG 169)	9/10/2003	169	169
Reporting, Record Keeping And Data Management Requirements	Monitoring Requirements for Consecutive Public Water Systems (Surface Water Treatment Rule)* (WSG H30)	06/1992	H30	H28
Reporting, Record Keeping And Data Management Requirements	Recordkeeping Requirements for Radionuclides* (WSG H47)	06/1992	H47	H50
Safe Drinking Water Information System (SDWIS)	The Data Sharing Committee's Review of the Total Coliform Rule Data Needs and SDWIS/FED Reporting Requirements* (WSG 96)	6/11/1997	96	109
Safe Drinking Water Information System (SDWIS)	Regional Data Management Roles (WSG 98)	7/29/1997	98	111
Safe Drinking Water Information System (SDWIS)	The Data Sharing Committee's Review of the SWTR Data Needs and SDWIS Reporting Requirements* (No longer applicable)	4/17/1998	120	120
Safe Drinking Water Information System (SDWIS)	Federal Reporting Data System (FRDS-II) Data Entry Instructions (WSG 120A)	1993	120A	120A
Safe Drinking Water Information System (SDWIS)	Revised Inventory Reporting Requirements for SDWIS/FED - Technical Guidance* (WSG 126)	7/10/1998	126	126
Safe Drinking Water Information System (SDWIS)	Policy on Cutoff Dates for Submitting Data to SDWIS/FED (WSG 113)	8/11/1998	113	128
Safe Drinking Water Information System (SDWIS)	Safeguarding Latitude/Longitude Data in SDWIS/FED Database (WSG 116)	3/23/1999	116	132
Safe Drinking Water Information System (SDWIS)	Approval of Data Sharing Committee Recommendations for Lead and Copper* (WSG 117)	4/1/1999	117	133
Safe Drinking Water Information System (SDWIS)	The Data Sharing Committee's Recommendations for Lead and Copper Rule Violation Reporting* (WSG 117A)	12/29/1998	117A	133A
Safe Drinking Water Information System (SDWIS)	SDWIS/FED O&M System Release 3.9* (WSG 162)	1/31/2003	162	162
Safe Drinking Water Information System (SDWIS)	SDWIS/FED O&M System Release 3.9.1* (WSG 165)	4/1/2003	165	165
Safe Drinking Water Information System (SDWIS)	SDWIS/FED Data Entry Instructions* (WSG 166)	4/1/2003	166	166
Safe Drinking Water Information System (SDWIS)	Standard Definitions for the Five Source Availability codes in the SDWIS, and Recommendations for Baseline and Routine Monitoring* (WSG 191)	5/16/2013	191	191
Surface Water & Ground Water	Opportunity for Public Hearing in Conjunction with Filtration Decisions* (WSG 64)	1/3/1992	64	69
Surface Water & Ground Water	Final Comprehensive State Ground Water Protection Programs Guidance (WSG 68)	12/1992	68	73
Surface Water & Ground Water	State Methods for Delineating Source Water Protection Areas for Surface Water Supplied Sources of Drinking Water (WSG 102)	08/1997	102	115
Surface Water & Ground Water	State Source Water Assessment and Protection Program Guidance (WSG 103)	08/1997	103	116
Surface Water & Ground Water	Guidance for Future State Ground Water Protection Grants (WSG 104)	8/5/1997	104	117
Surface Water & Ground Water	Safeguarding Latitude/Longitude Data in SDWIS/FED Database (WSG 116)	3/23/1999	116	132
Surface Water & Ground Water	The Data Sharing Committee's Recommendations for Lead and Copper Rule Violation Reporting* (WSG 163)	2/8/2003	163	163
Surface Water & Ground Water	The Data Sharing Committee's Recommendations for Lead and Copper Rule Violation Reporting* (WSG H28)	6/29/1989	H28	H30
Unregulated Contaminants	Response to Questions Raised by Region IV Concerning Public Notification Requirements for the Unregulated Contaminants* (WSG 38)	4/27/1988	38	40
Unregulated Contaminants	Region V's Approach on Unregulated Contaminants Public Notification Requirements* (WSG 51)	12/1/1989	51	51
Unregulated Contaminants	Unregulated Contaminant Public Notification Requirements* (WSG 51A)	10/4/1989	51A	51A
Unregulated Contaminants	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 51B)	5/7/1990	51B	51B
Unregulated Contaminants	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 133)	03/2000	133	133
Unregulated Contaminants	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 136)	1/1/2015	136	136
Unregulated Contaminants	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 141)	8/1/2001	141	141
Unregulated Contaminants	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 142)	10/1/2001	142	142
Unregulated Contaminants	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 146)	11/1/2001	146	146
Unregulated Contaminants	Clarification of Public Notification Requirements for Unregulated Contaminants* (WSG 150)	12/1/2001	150	150
Analytical Requirements/Laboratory Certification	Analytical Methods Home Page via the Internet (WSG 115)	2/1/1994	115	130
Analytical Requirements/Laboratory Certification	Possible Toxicity of Aluminum* (WSG H25)	3/1/1990	H25	H26
Unregulated Contaminants	Secondary MCL Range for Aluminum(this guidance may be updated)* (WSG H36)	8/1/1991	H36	H38
Unregulated Contaminants	Monitoring for Unregulated Contaminants (WSG H46)	7/1/1992	H46	H49
Variances And Exemptions	Guidance for Regional Review of Variance and Exemptions Granted by the Primacy States Pursuant to the SDWA (WSG 14)	9/15/1978	14	14
Variances And Exemptions	Guidance for the Issuance of Variance and Exemptions (WSG 18)	7/13/1979	18	18
Variances And Exemptions	Variances and Exemptions from Maximum Contaminant Levels under the Safe Drinking Water Act (WSG 17)	5/21/1979	17	18A
Variances And Exemptions	Illegal Use of Variance/Declaratory Judgement (WSG 18)	07/21/1979 Revised 11/1998	18	19
Variances And Exemptions	Methods of Preventing States from Using Illegal Variances (WSG 18A)	8/10/1979	18A	19A
Variances And Exemptions	Availability of Exemptions Under Section 1416(b)(2)(A) of the SDWA as Amended (40 CFR 142.55); Information Memo (WSG 30)	2/20/1987	30	30
Variances And Exemptions	Delegations of Authority for the Public Water System Supervision Program* (WSG 55)	7/23/1990	55	60
Variances And Exemptions	Request for Deviation for 40 CFR 35.115 (e) and (h)* (WSG 127)	6/25/1999	127	127
Variances And Exemptions	Variances and Administrative Orders (WSG H22)	08/1989 Revised 09/1998	H22	H23
Variances And Exemptions	Variances and Exemptions for Fluoride Revised in the Phase II Rule* (WSG H49)	7/1/1992	H49	H52
Variances And Exemptions	Renewal of Designation of Regional Counsels to Concur in Determinations on State PWS Primacy Revisions under the Safe Drinking Water Act*	8/10/2012	214	214

Public Water System Supervision Program Water Supply Guidance Manual

Drinking Water Requirements for States and Public Water Systems