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  2. Water Pollution Control (Section 106) Grants

About the Water Pollution Control (Section 106) Grant Program

The Clean Water Act (CWA) is the foundation for the protection of surface water quality in the United States. Section 106 of the CWA (33 U.S. Code §1256), authorizes EPA to provide financial assistance to states (including territories and the District of Columbia), eligible interstate agencies, and eligible tribes.

EPA provides this financial assistance in the form of water pollution control (Section 106) grants. Section 106 grants provide funding to build and maintain effective water quality programs that ensure the health of our nation’s water bodies.

On this page:
  • Who is eligible to receive Section 106 funds?
  • What programs and activities can Section 106 grants support?
  • Funding history

Who is eligible to receive Section 106 funds?

The CWA provides funds to states, interstate agencies, and eligible tribal governments under section 106. For additional information on funding eligibility, see:

  • State and interstate water pollution control grants under section 106 of the CWA
  • Tribal water pollution control grants under section 106 of the CWA
  • System for Award Management, general Section 106 grant information

What programs and activities can Section 106 grants support?

Section 106 grants can support a wide variety of water pollution prevention and control programs and activities, including:

  • Monitoring and assessing water quality;
  • Developing water quality standards;
  • Identifying impaired waters and total maximum daily loads;
  • Managing national pollutant discharge elimination system permits;
  • Ensuring compliance;
  • Implementing enforcement actions;
  • Protecting source water; and
  • Managing outreach and education programs.

Increasingly, EPA, states, tribes, and interstate agencies are working together to develop basin-wide approaches to water quality management. The Section 106 program fosters a watershed protection approach at the state level by looking broadly at states' water quality problems, and targeting the use of limited finances available for effective program management.

Section 106 grants also may be used to provide “in-kind” support through an EPA contract, or for associated program support if requested by a state or tribe, as discussed in EPA’s final guidance.

  • Final Guidance and Frequently Asked Questions on the Use of Associated Program Support Costs by the Pollution Control (Clean Water Act Section 106) Program for States, Interstates and Tribes

Funding History

Section 106 allocations are generated every year, according to formulae developed by EPA, which provides allotments directly to states and interstate agencies. A portion of Section 106 funds is set aside and allocated to EPA regional offices to make allotments to eligible tribes.

Since 2006, EPA has provided additional Monitoring Initiative funding to states, interstate agencies, and tribes to enhance water quality monitoring programs and conduct surveys of the nation's waters. The state Monitoring Initiative funds are allocated separately and are not included in the historical funding information provided below. The interstate and tribal Monitoring Initiative funds are allocated through the existing formulae and are included in the historical funding information.

  • View Section 106 historical funding for each year.

Water Pollution Control (Section 106) Grants

  • About the Program
    • Funding History
  • Monitoring Initiative Grants
    • Monitoring Guidance
    • Monitoring Allocation Process
  • State & Interstate Grants
    • State & Interstate Guidance
    • State & Interstate Allocation Process
  • Tribal Grants
    • Tribal Guidance
    • Tribal Allocation Process
Contact Us About Water Pollution Control (Section 106) Grants
Contact Us About Water Pollution Control (Section 106) Grants to ask a question, provide feedback, or report a problem.
Last updated on March 25, 2025
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