Clean Water State Revolving Fund


  • The Clean Water Fund has been capitalized for 20 years and can fund individual projects up to $35 million.
  • The Clean Water State Revolving Fund (CWSRF) Program was created by the 1987 amendments to the Federal Clean Water Act.
  • The CWSRF Program replaced the earlier Construction Grants program.
  • Congress provides funds for states to establish revolving loan programs for funding of wastewater treatment facilities and projects associated with estuary and nonpoint source programs.
  • States provide 20% matching funds.

Types of Funding Available

  • Low-interest loans (1/2 of market interest rates)
  • Limited amount of principal forgiveness loans
  • 0% interest loans available for Green Projects and for rehabilitation projects for certain local government units

Eligible Applicants

  • Local Government Units (counties, cities, towns, sanitary districts, etc.)

Eligible Projects

  • Wastewater treatment
  • Wastewater collection
  • Reclaimed water
  • Stormwater BMPs
  • Stream restoration
  • Energy efficiency at treatment works or collection systems

Key Program Requirements

  • Loan maximum is $35 million.
  • Construction must start within 24 months of Letter of Intent to Fund.
  • Closing fee of 2% (which cannot be financed).
  • Local Government Commission (LGC) must approve all loans.

2023 Base and BIL Supplemental CWSRF IUP

Draft FY2024 Base and BIL General Supplemental CWSRF IUP for public comment

Revised FY19-20 CWSRF ASADRA IUP (for public comment)


  • The CWSRF Program has two funding cycles per year, typically in March and September.
  • Refer to Funding Program Application Information for detailed information on application deadlines and requirements.
  • Contact Trupti Desai PE at (919) 707-9166 or via email at or Antonio Evans PE at (919) 707-9168 or via email at with application questions.

Application Training

Regulatory Information