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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 2024

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

    • Learn about the 2024 PISCES Projects

May 2024 Infrastructure Week saw $11.5 Billion in Water Infrastructure Investments Reaching 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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  • Annual allotment of federal funds
  • Related programs

CWSRF Results

Estuary and plovers
  • Environmental benefits
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  • 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

  • Award and Implementation of the 2025 State Revolving Fund Supplemental Appropriation for Hurricanes Helene and Milton and the Hawai’i Wildfires (pdf) (533.96 KB)
  • 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)

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 to ask a question, provide feedback, or report a problem.
Last updated on April 24, 2025
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