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Wastewater/Stormwater and Drinking Water Loans

-- July 1, 2023 through June 30, 2024 --

Base Rate: 1.81%
Small Community Rate: 1.36% *
Hardship Rate: 1.00% *

* Only certain projects qualify for the Small Community and the Hardship Rate. Reference the loan rules for each program for additional details.


ATTENTION: The Federal Build America, Buy America Act (BABA) is applicable to all SRF loan projects.

The Act requires the following Buy America preference:

  1. All iron and steel used in the project are produced in the United States.  This means all manufacturing processes, from the initial melting stage through the application of coatings, occurred in the United States.
  2. All manufactured products used in the project are produced in the United States.  This means the manufactured product was manufactured in the United States, and the cost of the components of the manufactured product that are mined, produced, or manufactured in the United States is greater than 55 percent of the total cost of all components of the manufactured product, unless another standard for determining the minimum amount of domestic content of the manufactured product has been established under applicable law or regulation.
  3. All construction materials are manufactured in the United States.  This means that all manufacturing processes for the construction material occurred in the United States.


Effective immediately, all loan funded projects exceeding a total project cost of $500,000 are subject to Illinois Works Jobs Program Act Apprenticeship Initiative requirements. This requirement is overseen by the IL Department of Commerce and Economic Opportunity (DCEO).

Forms and instructions for loan applicants can be found on their respective loan page. 

Welcome! The Wastewater and Drinking Water loan programs provide low-interest loans through the State Revolving Fund (SRF). The SRF includes two loan programs: the Water Pollution Control Loan Program (WPCLP) which funds both wastewater and storm water projects, and the Public Water Supply Loan Program (PWSLP) for drinking water projects. These programs are annually the recipients of federal capitalization funding which is combined with state matching funds, interest earnings, repayment money, and the sale of bonds to form a source of financing for infrastructure projects.

Our programs provide financial assistance to eligible public or private applicants for the design and construction of a wide variety of projects that protect or improve the quality of Illinois’ water resources. We assist applicants with projects that address human health and failing water infrastructure. Eligible projects include new drinking water or wastewater infrastructure construction; upgrading or rehabilitating existing infrastructure; storm water-related projects that benefit water quality; and a variety of other projects that protect or improve the quality of Illinois’s rivers, streams, and lakes. Our historical list of borrowers includes the state’s largest city, as well as, many small communities and water districts with populations less than 1,000 people.

If your community or entity is ready to begin the loan application process, call (217) 782-2027 and ask to speak to one of our project managers.

Funding Cycle & Availability of Funds

The State Revolving Fund (SRF) yearly cycle is based on the State of Illinois fiscal year, which starts July 1st and ends June 30th. Because funding is limited, projects with approved planning are scored and ranked on the Intended Funding List (IFL) to prioritize which ones will receive loan program resources during a specific fiscal year.  Loan applicants are advised not to advertise their projects for bids until money is reserved. 

For more information regarding the funding cycle, see the Funding Cycle Explanation Document. This document includes significant loan program dates and pertinent IEPA loan program regulatory sections.

For More Information

Please contact the Infrastructure Financial Assistance Section (IFAS) at (217) 782-2027 for additional information. You may reach the following contacts at this number.


Project Managers: