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This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

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Clean Water State Revolving Fund (CWSRF)

  • Funding Clean Water for 36 Years

    • $172 billion to communities
    • 48,900 low-cost loans
    • Protecting public health
    • Preserving valuable aquatic resources
    • Meeting environmental standards
    • Benefiting millions of people
  • Bipartisan Infrastructure Law Resources for Clean Water

    • Once-in-a-generation investment in our nation's infrastructure and communities
    •  $11.7 billion for the CWSRF
    • Plus $1 billion more for CWSRF emerging contaminants

    Learn how communities benefit

    Read the SRF Implementation Memorandum

  • George F. Ames PISCES Recognition Projects for 2023

    National recognition for CWSRF funded projects for exceptional accomplishments in promoting human health and improving water quality.

    • Learn about the 2023 PISCES Projects

Biden-Harris Administration Marks 2024 Infrastructure Week as $11.5 Billion in Water Infrastructure Investments Reach State Finance Programs Across the Country Through Investing in America Agenda

The CWSRF program is a federal-state partnership that provides low-cost financing to communities for a wide range of water quality infrastructure projects, including municipal wastewater facilities, nonpoint source pollution control, decentralized wastewater treatment systems, stormwater runoff mitigation, green infrastructure, estuary protection, and water reuse.

About the CWSRF

Wastewater treatment plant clarifiers
  • How the CWSRF works
    • Available en español
  • Project eligibilities
  • Types of assistance
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  • Apply for CWSRF assistance

Implementation

Wastewater sewer pipe with tractors
  • Laws and regulations
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  • Emerging contaminants
  • Reports
  • Annual allotment of federal funds
  • Related programs

CWSRF Results

Estuary and plovers
  • Environmental benefits
  • Financial reports
  • Clean Watersheds Needs Survey
  • SRF Public Portal

Community Resources

Solar panels
  • CWSRF Project Case Studies
  • Factsheets
  • Nontraditional financing
  • Financing Alternatives Comparison Tool

What's New

  • Memorandum of Understanding Signed between USDA Natural Resources Conservation Service and U.S. EPA Office of Water (January 7, 2025) (pdf) (397.82 KB)
  • FY 2024 Allotments for the State Revolving Fund Provisions of the Bipartisan Infrastructure Law and Base Program Funding (pdf) (290.21 KB)
  • FY 2024 SRF Allotment Memorandum Attachments (pdf) (1.68 MB)
  • Frequent Questions about Bipartisan Infrastructure Law State Revolving Funds (pdf) (1.03 MB)
  • Reallotment of Fiscal Year 2022 Bipartisan Infrastructure Law Clean Water State Revolving Fund Emerging Contaminants Funds (pdf) (376.39 KB)

George F. Ames PISCES Recognition Projects for 2023

National recognition for CWSRF funded projects for exceptional accomplishments in promoting human health and improving water quality.

  • Learn about the 2023 PISCES Projects

See the American Iron and Steel (AIS) Requirements

Learn about the Build America, Buy America Act

Contact Us About the Clean Water State Revolving Fund (CWSRF) to ask a question, provide feedback, or report a problem.
Last updated on January 15, 2025
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