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Water Infrastructure Improvements for the Nation Small and Underserved Communities Emerging Contaminants Grant Program

Program Information

Popular name

Small, Underserved, and Disadvantaged Communities (SUDC) Grant Program

Program Number

66.442

Sub-agency

N/A

Program objective

The objective is to assist small and underserved communities to comply with the Safe Water Drinking Act (SDWA). Funding is awarded to states and territories, including a tribal allotment, for projects/activities that are necessary for public water systems to comply with national drinking water standards established by SDWA. Funding will continue to support projects and activities that benefit underserved communities. Underserved communities include those communities that do not have household drinking water or wastewater services; or are served by a public water system that violates or exceeds a requirement of a national primary drinking water regulation issued under SDWA section 1412, including a maximum contaminant level; a treatment technique; or an action level. The objective is to assist small or disadvantaged communities in addressing emerging contaminants in drinking water. Awards are funded by appropriations established by the Infrastructure Investment and Jobs Act (IIJA). Funding is awarded to states and territories, including a tribal allotment, for: 1) programs to provide household water quality testing, including testing for unregulated contaminants, and 2) activities necessary for a state to respond to a contaminant. Projects/activities are to assist public water systems in small and disadvantaged communities to provide support towards reduction and remediation of emerging contaminants. The funding priority will continue to be projects and activities that benefit small or disadvantaged communities. Small communities include those will populations less than 10,000 individuals. Disadvantaged communities are those that meet affordability criteria established by the state in which the project takes place.

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. 2020

    The projects and eligible activities funded included assistance to tribal public water systems in underserved, small and disadvantaged communities to meet and comply with the requirements of the Safe Drinking Water Act (SDWA). In FY 2020, over $20M in funding focused on providing drinking water and drinking water services to tribal communities.

  2. 2022

    The projects and eligible activities funded include SDWA compliance investments targeted to public water systems, programs to provide household water quality testing (including testing for unregulated contaminants), as well as activities to respond to a drinking water contaminant.

  3. 2024

    The 2024 Consolidated Appropriations Act authorized fiscal year 2024 appropriations to provide assistance in addressing drinking water contaminants to private well owners. With expanded project eligibility, the programs were able to award their first ever projects addressing drinking water contaminants in private wells. For FY24 allocated funding. 41 of 55 states and territories were awarded FY22/23 funding and 13 of 56 states and territories awarded FY24 funding. Main contaminants addressed were PFAS, Manganese, Sodium, Dieldrin and Legionella. A total of $44.2 million was made available to Tribes through the Tribal EC-SDC and SUDC programs in FY22 and FY23 funding. A total of $22.2 million was made available to Tribes through these programs in FY24 funding.”

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.

Assistance agreement awards are subject to the grant regulations under 2 CFR 1500 (EPA Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards); and 40 CFR Part 33 (Participation by Disadvantaged Business Enterprises in United States Environmental Protection Agency Programs). Additional information can be found at https://www.epa.gov/ground-water-and-drinking-water/drinking-water-grants.

  1. 1459A(a-j), Safe Drinking Water Act (SDWA).
  2. Infrastructure Investment and Jobs Act (IIJA). Pub. L. 117, 58.

Program details

Categories & sub-categories

Environmental Quality

Program types

Eligible beneficiaries

  • Federally Recognized Indian Tribal Governments
  • Low Income
  • Rural
  • State
  • U.S. Territories

Additional resources