State Public Water System Supervision
Active
- Assistance listing
- 66.432
- Grant awards
- 836 $1,394,615,376 in federal obligations
Program facts
- Assistance types
-
- Formula Grant
- Project Grant
- Cooperative Agreement
- Treasury account
-
- 68-0103-0-1-304
- More information
Program details come from SAM.gov Assistance Listings. Updated . Grant award figures come from USAspending.gov.
About this program
The Environmental Protection Agency awards State Public Water System Supervision grants (Assistance Listing 66.432) to States and federally recognized Tribes with Primary Enforcement Responsibility for implementing and enforcing Safe Drinking Water Act requirements on public water systems, with the most recent award issued on January 1, 2026.
This program funds state and tribal drinking water regulatory administration, including development and adoption of regulations no less stringent than federal National Primary Drinking Water Regulations, maintenance of public water system inventories, sanitary surveys, laboratory certification, compliance determinations and enforcement actions, technical assistance to water systems, and data management through the Safe Drinking Water Information System. Recent awards reflect heavy emphasis on emerging contaminants, particularly PFAS testing and analysis capabilities. Emerging contaminant activities including PFAS sampling, equipment acquisition for analysis, and preparation of water systems for implementation of EPA's PFAS drinking water regulations appear across multiple state awards.
The program is predominantly Formula Grants (685 awards, 82 percent) with a smaller share of Project Grants (149 awards, 18 percent) and negligible Cooperative Agreements (2 awards, less than 1 percent). The Environmental Protection Agency distributes 710 of 836 total awards, obligating $1.05 billion of the $1.39 billion in combined federal dollars. EPA Regions 5, 3, 10, and 9 collectively account for 80 awards and $237.5 million, with the remaining long tail of regional offices distributing a modest share. Combined federal and non-federal dollars obligated total $2.21 billion, indicating modest recipient cost-share.
Recent awards show typical magnitudes ranging from $400 thousand to $28.6 million. Representative recent awards include California ($28.6 million, October 2024) for regulatory compliance and technical assistance statewide; Pennsylvania ($12 million, July 2024) for increased sanitary surveys and health-based violation reduction; New York ($15.7 million, October 2023) with subawards to 37 local health departments; and Ohio ($4.8 million, October 2024) supporting staff positions. Program activity remains steady with 18 awards in 2022, 23 in 2023, 20 in 2024, declining to 10 in 2025, and only 2 awards year-to-date in 2026.
No recent grant opportunities are currently posted in the source material; eligible applicants should monitor EPA regional offices for annual announcement cycles.
Objective and description
- 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 requi
- Description
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: https://ecfr.federalregister.gov/current/title-40/chapter-I/subchapter-D/part-141.
Eligibility
- Applicant eligibility
Eligibility is limited to the governments of the fifty States; the District of Columbia; the Commonwealth of Puerto Rico; the Northern Mariana Islands; the Virgin Islands; Guam; American Samoa; and federally recognized Tribes, that have either assumed primary enforcement responsibility for the PWSS Program or that want to develop a program that will allow them to seek delegation for a PWSS Program. EPA may also use funds allotted for a State or Tribal program, if the State or Tribe does not have, or is not developing, primary enforcement responsibility, or EPA may use all or part of the funds to support the PWSS Program in absence of an acceptable State program. Eligibility is also limited to a single agency within each State, Territory, or Tribe - an agency that has been designated by the jurisdiction's Governor or Chief Executive Officer. Primary Enforcement Responsibility for the Public Water System Supervision Program is provided for in 40 CFR 142 (https://ecfr.federalregister.gov/current/title-40/chapter-I/subchapter-D/part-142?toc=1).
- Beneficiary eligibility
The beneficiaries are the agencies within the fifty States; the District of Columbia; the Commonwealth of Puerto Rico; the Northern Mariana Islands; the Virgin Islands; Guam; American Samoa; and federally recognized Tribes, that have been designated by the jurisdiction's Governor or Chief Executive Officer as being responsible for the supervision of water supplies within the State, Territory, or Tribe.
- Uses of assistance
The funds are to be used to develop and implement a Public Water System Supervision Program adequate to enforce the requirements of the Safe Drinking Water Act and associated program regulations found in 40 CFR Parts 35, 141, 142, and 143. Assistance agreement awards under this program may involve or relate to geospatial information. Further information regarding geospatial information may be obtained by viewing the following website: Geospatial Resources at EPA.
- Length and time phasing of assistance
The term of the grant shall be determined at the time of grant award.
How to apply
- Preapplication coordination
Intergovernmental review applies to this assistance listing when proposed Federal financial assistance involves planning for construction of drinking water infrastructure. EPA financial assistance programs and activities subject to intergovernmental review that are subject to review under State single point of contact procedures are identified at https://www.epa.gov/grants/epa-financial-assistance-programs-subject-executive-order-12372-and-section-204. Applicants for programs or activities subject to Intergovernmental Review that are not subject to State single point of contact review must provide directly affected State, areawide, regional, and local entities at least 60 days to review their application following notification by EPA that the application has been selected for funding as provided by 40 CFR 29.8(a) and (c).
- Criteria for selecting proposals
(1) Adequacy of States and Tribes (those that have Primary Enforcement Responsibility for the PWSS Program) for the adoption and enforcement of drinking water regulations which are no less stringent than the national primary drinking regulations as listed in 40 CFR 141 and 40 CFR 142. (2) Designation of a State agency to receive the grant and be responsible for conducting the public water system supervision program. (3) Compliance with requirements of 2 CFR 200 and 1500 as applicable, and 40 CFR 35. Applications will be assessed consistent with the merit review regulations in 2 CFR 200.205.
- Award procedure
The grant application and Program Plan are reviewed by the appropriate EPA Regional Office, and if approved, are signed by the Regional Administrator, who then awards the funds to the recipient.
- Time to approval or disapproval
Generally 60 days.
- Appeals
Disputes relating to matters other than competitive selection of recipients will be resolved under 2 CFR 1500 Subpart E, as applicable
Grant awards
Latest 10 of 836 listed here. See the rest on GovTribe.
Top recipients by federal obligations
| Rank | Recipient | Federal obligations | Share |
|---|---|---|---|
| 1 | NYS Department Of Health | $89,455,700 | 6% |
| 2 | State Of California Water Resources Control Board | $87,523,198 | 6% |
| 3 | Pennsylvania Department Of Environmental Protection | $84,309,801 | 6% |
| 4 | Michigan Department Of Environment, Great Lakes, And Energy | $66,441,752 | 5% |
| 5 | North Carolina Department Of Environmental Quality | $61,351,004 | 4% |
| 6 | Washington State Department Of Health | $57,468,498 | 4% |
| 7 | Minnesota Department Of Health | $49,606,400 | 4% |
| 8 | Environmental Conservation Alaska Department | $48,775,704 | 3% |
| 9 | The State Of Ohio Office Of Budget And Management | $47,806,020 | 3% |
| 10 | Wisconsin Department Of Natural Resources | $40,767,050 | 3% |
10 of 44 recipients listed here. See the rest on GovTribe.
Federal obligations by fiscal year
| Fiscal year | Federal obligations |
|---|---|
| FY2026 | $21,034,657 |
| FY2025 | $48,048,414 |
| FY2024 | $57,562,947 |
| FY2023 | $60,428,520 |
| FY2022 | $53,256,698 |
| FY2021 | $53,913,526 |
| FY2020 | $52,199,187 |
| FY2019 | $49,120,032 |
| FY2018 | $51,747,445 |
| FY2017 | $52,528,262 |
| FY2016 | $53,120,363 |
| FY2015 | $51,795,701 |
| FY2014 | $52,088,883 |
| FY2013 | $52,379,083 |
| FY2012 | $56,074,443 |
| FY2011 | $63,653,865 |
| FY2010 | $58,266,072 |
| FY2009 | $55,261,974 |
| FY2008 | $55,833,419 |
| FY2007 | $54,144,494 |
| FY2006 | $52,200,235 |
| FY2005 | $62,482,663 |
| FY2004 | $59,408,529 |
| FY2003 | $55,627,247 |
| FY2002 | $57,752,676 |
| FY2001 | $54,752,140 |
Show all 26
Quick answers
What is Assistance Listing 66.432?
Assistance Listing 66.432 is State Public Water System Supervision, a federal grant program run by Environmental Protection Agency.
What is the CFDA number for State Public Water System Supervision?
Its CFDA number is 66.432: Assistance Listing numbers were called CFDA numbers before 2018.
How much funding has Assistance Listing 66.432 awarded?
836 grant awards under 66.432 have obligated $1,394,615,376 in federal funds to 44 recipients.
Who receives the most funding from 66.432?
The recipients obligated the most under State Public Water System Supervision are NYS Department Of Health ($89,455,700), State Of California Water Resources Control Board ($87,523,198) and Pennsylvania Department Of Environmental Protection ($84,309,801).
How much did 66.432 obligate in fiscal year 2025?
Grants under 66.432 obligated $48,048,414 in federal funds in fiscal year 2025.
On GovTribe
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