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State Public Water System Supervision

Program Information

Popular name

N/A

Program Number

66.432

Sub-agency

N/A

Program objective

The objective of these grants is to provide financial assistance to eligible States and Tribes, those that have Primary Enforcement Responsibility for the Public Water System Supervision (PWSS) Program, for implementation and enforcement of the requirements of the Safe Drinking Water Act that apply to public water systems. In cases where a State or a Tribe does not have a Primary Enforcement Responsibility program, EPA is authorized to use funds that would have otherwise been made available to the State or the Tribe to assist it in direct implementation of the PWSS program. The fundamental goal of the PWSS Program, and the grants, is to ensure that public water systems comply with the National Primary Drinking Water Regulations listed in 40 CFR 141. State drinking water agencies, which have Primary Enforcement Responsibility for the PWSS Program, and Indian Tribes that receive PWSS grants are to use them to ensure that public drinking water systems, of all types, and of all sizes: (1) are currently in compliance with the drinking water regulations and remain in compliance, (2) are working towards and in the process of achieving compliance when these systems are noncompliant, and (3) are preparing for future compliance with any new drinking water regulations that will be taking effect in the current or following year. Furthermore, State drinking water agencies, which have Primary Enforcement Responsibility for the PWSS Program, and Indian Tribes that receive PWSS grants are required to use the funds to update and maintain its PWSS program to comply with the National Primary Drinking Water Regulations Implementation requirements listed in 40 CFR 142 to ensure that the State or Tribal PWSS program is capable of conducting oversight of all public water systems as new drinking water rules, new public water systems, and/or drinking water program requirements become effective.

Program expenditures, by FY (2023 - 2025)

This chart shows obligations for the program by fiscal year. All data for this chart was provided by the administering agency and sourced from SAM.gov, USASpending.gov, and Treasury.gov.

For more information on each of these data sources, please see the About the data page.

Additional program information

  1. 2016

    During FY 2016, 49 States, five territories, and one Indian Tribe (Navajo Nation) were awarded grant funding under the PWSS Program. The majority of the grant funds were used for State, territorial, or Tribal governmental salaries to allow the governments to: develop and maintain State drinking water regulations; develop and maintain an inventory of public water systems throughout the State; develop and maintain a database housing compliance information on public water systems; conduct sanitary surveys on the public water systems; review public water system plans and specifications to ensure systems meet State design standards; provide technical assistance and training to water system managers and operators to ensure they are knowledgeable of the State requirements and best treatment and operation practices; conduct of a program to ensure that the public water systems keep their consumers informed about the quality of the water they are providing; inspect and certify laboratories that are allowed to perform the analysis of drinking water that will be used to determine compliance with the drinking water regulations; and conduct an enforcement program to ensure that the public water systems comply with all of the requirements. States, territories, and Tribes also use the grant funds to upgrade and maintain the data systems that are used to store and track information on public water systems. During FY 2016, 49 States, five territories, and one Indian Tribe (Navajo Nation) were awarded grant funding under the PWSS Program. The majority of the grant funds were used for State, territorial, or Tribal governmental salaries to allow the governments to: develop and maintain State drinking water regulations; develop and maintain an inventory of public water systems throughout the State; develop and maintain a database housing compliance information on public water systems; conduct sanitary surveys on the public water systems; review public water system plans and specifications to ensure systems meet State design standards; provide technical assistance and training to water system managers and operators to ensure they are knowledgeable of the State requirements and best treatment and operation practices; conduct of a program to ensure that the public water systems keep their consumers informed about the quality of the water they are providing; inspect and certify laboratories that are allowed to perform the analysis of drinking water that will be used to determine compliance with the drinking water regulations; and conduct an enforcement program to ensure that the public water systems comply with all of the requirements. States, territories, and Tribes also use the grant funds to upgrade and maintain the data systems that are used to store and track information on public water systems.

  2. 2017

    During FY 2017, 49 States, five territories, and one Indian Tribe (Navajo Nation) were awarded grant funding under the PWSS Program. The majority of the grant funds were used for State, territorial, or Tribal governmental salaries to allow the governments to: develop and maintain State drinking water regulations; develop and maintain an inventory of public water systems throughout the State; develop and maintain a database housing compliance information on public water systems; conduct sanitary surveys on the public water systems; review public water system plans and specifications to ensure systems meet State design standards; provide technical assistance and training to water system managers and operators to ensure they are knowledgeable of the State requirements and best treatment and operation practices; conduct of a program to ensure that the public water systems keep their consumers informed about the quality of the water they are providing; inspect and certify laboratories that are allowed to perform the analysis of drinking water that will be used to determine compliance with the drinking water regulations; and conduct an enforcement program to ensure that the public water systems comply with all of the requirements. States, territories, and Tribes also use the grant funds to upgrade and maintain the data systems that are used to store and track information on public water systems.

  3. 2018

    During FY 2018, 49 States, five territories, and one Indian Tribe (Navajo Nation) were awarded grant funding under the PWSS Program. The majority of the grant funds were used for State, territorial, or Tribal governmental salaries to allow the governments to: develop and maintain State drinking water regulations; develop and maintain an inventory of public water systems throughout the State; develop and maintain a database housing compliance information on public water systems; conduct sanitary surveys on the public water systems; review public water system plans and specifications to ensure systems meet State design standards; provide technical assistance and training to water system managers and operators to ensure they are knowledgeable of the State requirements and best treatment and operation practices; conduct of a program to ensure that the public water systems keep their consumers informed about the quality of the water they are providing; inspect and certify laboratories that are allowed to perform the analysis of drinking water that will be used to determine compliance with the drinking water regulations; and conduct an enforcement program to ensure that the public water systems comply with all of the requirements. States, territories, and Tribes also use the grant funds to upgrade and maintain the data systems that are used to store and track information on public water systems.

  4. 2019

    During FY 2019 49 States, five territories, and one Indian Tribe (Navajo Nation) were awarded grant funding under the PWSS Program. The majority of the grant funds were used for State, territorial, or Tribal governmental salaries to allow the governments to: develop and maintain State drinking water regulations; develop and maintain an inventory of public water systems throughout the State; develop and maintain a database housing compliance information on public water systems; conduct sanitary surveys on the public water systems; review public water system plans and specifications to ensure systems meet State design standards; provide technical assistance and training to water system managers and operators to ensure they are knowledgeable of the State requirements and best treatment and operation practices; conduct of a program to ensure that the public water systems keep their consumers informed about the quality of the water they are providing; inspect and certify laboratories that are allowed to perform the analysis of drinking water that will be used to determine compliance with the drinking water regulations; and conduct an enforcement program to ensure that the public water systems comply with all of the requirements. States, territories, and Tribes also used the grant funds to upgrade and maintain the data systems that are used to store and track information on public water systems.

  5. 2022

    In FY 2022 49 States, five territories, and one Indian Tribe (Navajo Nation) were awarded grant funding under the PWSS Program. The majority of the grant funds will be used for State, territorial, or Tribal governmental salaries to allow the governments to: develop and maintain State drinking water regulations; develop and maintain an inventory of public water systems throughout the State; develop and maintain a database housing compliance information on public water systems; conduct sanitary surveys on the public water systems; review public water system plans and specifications to ensure systems meet State design standards; provide technical assistance and training to water system managers and operators to ensure they are knowledgeable of the State requirements and best treatment and operation practices; conduct of a program to ensure that the public water systems keep their consumers informed about the quality of the water they are providing; inspect and certify laboratories that are allowed to perform the analysis of drinking water that will be used to determine compliance with the drinking water regulations; and conduct an enforcement program to ensure that the public water systems comply with all of the requirements. States, territories, and Tribes also use the grant funds to upgrade and maintain the data systems that are used to store and track information on public water systems.

  6. 2024

    In FY 2024 49 States, five territories, and one Indian Tribe were awarded grant funding under the PWSS Program. The majority of the grant funds will be used for State, territorial, or Tribal governmental salaries to allow the governments to: develop and maintain State drinking water regulations; develop and maintain an inventory of public water systems throughout the State; develop and maintain a database housing compliance information on public water systems; conduct sanitary surveys on the public water systems; review public water system plans and specifications to ensure systems meet State design standards; provide technical assistance and training to water system managers and operators to ensure they are knowledgeable of the State requirements and best treatment and operation practices; conduct of a program to ensure that the public water systems keep their consumers informed about the quality of the water they are providing; inspect and certify laboratories that are allowed to perform the analysis of drinking water that will be used to determine compliance with the drinking water regulations; and conduct an enforcement program to ensure that the public water systems comply with all of the requirements. States, territories, and Tribes also use the grant funds to upgrade and maintain the data systems that are used to store and track information on public water systems.

Single Audit Applies (2 CFR Part 200 Subpart F):

For additional information on single audit requirements for this program, review the current Compliance Supplement.

OMB is working with the U.S. Government Accountability Office (GAO) and agency offices of inspectors general to include links to relevant oversight reports. This section will be updated once this information is made available.

2 CFR Part 1500 (EPA Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards); 40 CFR Part 33 (Participation by Disadvantaged Business Enterprises in United States Environmental Protection Agency Programs); and 40 CFR Part 35 SubPart A (Environmental Program Grants) or SubPart B (Environmental Program Grants for Tribes.

  1. Safe Drinking Water Act, 1443(a).
  2. Safe Drinking Water Act, 1451.

Program details

Program types

Eligible beneficiaries

  • Anyone/general public
  • Federally Recognized Indian Tribal Governments
  • Local
  • State
  • U.S. Territories

Additional resources