Intro to Clean/Drinking Water State Revolving Funds
November 18, 2025

The Clean Water and Drinking Water State Revolving Funds (CWSRF/DWSRF) are federal-state programs that provide financial assistance, in the form of low-cost loans, for investments in drinking water and water quality infrastructure projects.

This resource introduces these programs and illustrates how cities and local communities leverage this financial assistance to support investments in water infrastructure.

Overview

For both the Clean Water and Drinking Water State Revolving Funds, Congress appropriates funds to the Environmental Protection Agency (EPA), which then makes capitalization grants to states. With a 20 percent state match requirement, the state-level recipients create and manage revolving funds through which eligible recipients like local governments or utilities can receive financial assistance for water infrastructure projects, primarily in the form of low-interest loans. In some cases, states can offer principal forgiveness as well to lower the cost of capital.

CWSRF/DWSRF Financial Assistance Offerings

CWSRF and DWSRF offer financial assistance, but not traditional grants, for eligible projects. This financial assistance typically comes in the form of low-interest loans with repayment over 30-45 years. In some cases, the financial assistance can include principal forgiveness.

In addition to loan products, financial assistance can include loan guarantees, bond purchases, and debt refinancing. Available forms of assistance will vary by project type and state.

When the time comes to apply for financial assistance, eligible entities must demonstrate that they have the legal authority to take on debt, a repayment source, and proper approval to take on debt.

Given the decentralized nature of both the CWSRF and DWSRF — there are 51 revolving funds under both programs for a total of 102 water revolving funds — states can have distinct requirements, timelines, and priorities.  Communities interested in pursuing CWSRF or DWSRF assistance should engage with their state program offices for the requisite program. CWSRF and DWSRF program contacts by state are available on the EPA website. Additionally, the Local Infrastructure Hub published a resource outlining the processes for all fifty states and the District of Columbia. 

While operating similarly, the key distinction between CWSRF and DWSRF is the types of projects they support. CWSRF is for investments in stormwater and wastewater infrastructure projects as well as non-point source pollution, water use efficiency, and green infrastructure. DWSRF is solely for drinking water infrastructure projects, including lead pipe abatement. 

Clean Water State Revolving Fund

Since 1988, the Clean Water State Revolving Fund (CWSRF) has provided over $181.4 billion in financial assistance across more than 50,000 assistance agreements. This substantial investment is catalyzed by $55.7 billion in total capitalization grants since the program’s inception. Per the EPA’s CWSRF 2024 Annual Report, CWSRF financing has saved communities $51 billion in interest costs over the program’s lifetime. 

For more information, view the Local Infrastructure Hub’s CWSRF Bootcamp materials here. 

Drinking Water State Revolving Fund

The Drinking Water State Revolving Fund (DWSRF) was established by the 1996 amendments to the Safe Drinking Water Act. Since then, per the 2023 DWSRF annual report, the EPA has provided over $28.6 billion in capitalization grants which states have leveraged to provide $57.3 billion in financial assistance to over 19,000 projects.

Using Clean and Drinking Water State Revolving Funds

This section focuses on the project requirements and steps necessary to leverage financial assistance from CWSRF or DWSRF, in the form of low-interest loans. In some cases, depending on the state and project, the financial package may include principal forgiveness.

Across all states, to be eligible for financial assistance through the CWSRF or DWSRF a project must first be included on the State’s Intended Use Plan (IUP) for the program year. The IUP serves as the EPA’s approved authorization document that enables a project to receive SRF financial support. Once a project is included on the approved IUP, then the eligible entity and state program can finalize the financial agreement.

Getting on the IUP

Each SRF program office has a structured application and ranking process for developing the requisite IUP, the timing, requirements, and criteria. It is imperative that project leaders interested in pursuing CWSRF or DWSRF assistance engage with their state program to express interest and identify the state-specific requirements and timelines; details can vary from state to state.

Typically, project leaders must submit project information via a project proposal, pre-application, or project information form – depending on the state process and requirements (for this resource we collectively refer to this as the “proposal”).

In addition to the project description, proposals include a justification for the project (e.g., compliance or capacity needs), cost estimates and financing needs, discussion of environmental and public health benefits, engineering or planning documentation (e.g., a facility plan), and readiness to proceed. To gather this information and build a project narrative, local leaders should engage with both internal and external stakeholders across the city government, including but not limited to their public works, finance, environmental services, and utility departments.

Selection for Funding

For the SRF programs, states establish scoring and ranking criteria to establish their Project Priority List (PPL), which ranks the projects for which the state received preliminary applications. The ranking established here is used to create the IUP. The variation between the PPL and IUP is dependent on the availability of funds in each state.

Post-IUP Funding Steps

While the priority ranking and scoring criteria varies by state, they primarily focus on public health, water quality, and regulatory mandates such as those relating to violations of the Safe Drinking Water Act or Clean Water Act and existing consent decrees or enforcement orders. Additionally, economic need and affordability might be considered and evaluated based on utility rates or median household income. Ranking criteria can also address concerns like green infrastructure, system resilience, and innovation.

Community Engagement for Water Investments

States may also encourage or require documentation of community engagement be included in the proposal and pre-application process. Early community engagement can be critical to build and demonstrate public support and local buy-in for a project.

Akron, OH – a recipient of $1.3 billion in financial assistance from Ohio’s CWSRF across more than 100 projects dating back to January 1995 – is a strong example of how to engage the community around water projects to build and maintain strong public support. After entering a consent decree in January 2014, the City of Akron developed and implemented a stakeholder program in conjunction with their integrated plan, the purpose of which was to open and maintain communication channels with community stakeholders during planning and implementation processes. This falls under the Akron Waterways Renewed program.

At a project level, the City of Akron also conducted specific outreach with identified project stakeholders and through attendance at community meetings. Additionally, the City conducted trolley tours of completed and active sewer construction projects, giving staff the opportunity to explain the complexities of the consent decree, integrated plan, and projects themselves. In one year, over 1,800 attendees took the tour, and surveys showed a 92% improvement in attendees’ attitude about the program.

The two layers of engagement enable the City to better develop and implement citywide investments in their water infrastructure while also facilitating critical project-level feedback and information to and from residents.

Inclusion on the IUP does not guarantee funding as readiness and fund availability also play a role. Once a project is included on the IUP and funds become available, then the local project leader will work with the state SRF office to complete the loan application and environmental review, negotiate financial terms and conditions, and execute a financial agreement.

CWSRF and DWSRF have very similar financial structures. For both, borrowers must demonstrate an ability to repay — often via utility revenues or rate pledges. Both can also provide credit subsidies, with criteria typically defined by the state, and loan terms of up to 30 – 45 years at below-market interest rates. Additionally, since they are federally funded programs, they must meet federal requirements, including but not limited to those relating to the National Environmental Policy Act (NEPA), Davis-Bacon prevailing wages, and Build America, Buy America requirements.

 

Water Technical Assistance (WaterTA)

EPA Water Technical Assistance (WaterTA) connects communities to experts who can help them to assess and implement solutions for drinking water, sewage, and stormwater needs. Services may include identification of lead pipes, enhancing resilience against cybersecurity threats, workforce development, and compliance with the Safe Drinking Water and Clean Water Acts.

WaterTA consists of numerous initiatives to support Infrastructure Investment and Jobs Act (IIJA) implementation and ongoing CWSRF needs. IIJA-related topics include lead service line replacement, emerging contaminants, and closing the wastewater access gap. Ongoing WaterTA initiatives include Environmental Finance Centers, Cybersecurity, Utility Workforce Development, and Strengthening Water Infrastructure for Tomorrow (SWIFT), which focuses on system resilience.

For a full list of WaterTA initiatives, visit the EPA website.

 

Incorporating Other Sources of Capital

CWSRF and/or DWSRF may not be sufficient to cover the needs of local water systems; project leaders should consider alternative funding sources for water infrastructure projects as well the opportunity to combine with other sources together with SRF financial assistance. 

For example, the City of Peru, Indiana blended DWSRF assistance and Community Development Block Grant (CDBG) funding to make an $8.5 million investment in various water system improvements, including the replacement of lead service lines and water mains as well as generator installations. 

In Hoboken, New Jersey, the City leveraged a blended capital stack that included $10 million in funding from the Building Resilient Infrastructure and Communities (BRIC) Program and $44 million in CWSRF financing for the development of their Northwest Resiliency Park. The Northwest Resiliency Park project transformed a former industrial site into a public park with both recreational and resiliency benefits by housing expansive grey and green stormwater infrastructure. 

In Kalamazoo, Michigan, the City is leveraging a Promoting Resilient Operations for Transformative, Efficient, and Cost-saving Transportation Program (PROTECT) award to upgrade stormwater infrastructure by increasing system capacity, a project that would also be eligible for CWSRF assistance as an alternative. The Kalamazoo project is further detailed on the Local Infrastructure Hub website.

Clean and Drinking Water State Revolving Fund Eligibilities

Eligible entities and projects vary by program. Local leaders should start by contacting their state office’s CWSRF or DWSRF program contacts.

Clean Water State Revolving Fund Eligibilities

Entities that are eligible for CWSRF assistance include local governments, intermunicipal, interstate, or state agencies; nonprofit entities; private, for-profit entities (with variation by state); watershed groups; community groups; homeowner associations; and individuals.

Per Section 603(c) of the Clean Water Act, there are 11 categories of eligible projects for CWSRF assistance. The table below identifies these categories of eligible projects and provides examples for each.

CWSRF Eligibility Categories and Examples

Construction of Publicly-owned Treatment Works

Construction, expansion, or rehabilitation of publicly-owned water treatment plants and collection systems

The Ardmore Wastewater Treatment Plant, serving approximately 1,100 customers in Alabama and Tennessee, was built in the 1960s and is no longer suited to effectively treat daily flows. With approximately $20 million in financial assistance from Alabama’s CWSRF, the facility will be upgraded to improve capacity to handle both routine and peak demands.

This project was recognized by the EPA as part of the PISCES 2025 Recognition Program.

Mitigating Nonpoint Source Pollution

Addressing diffuse pollution from runoff, such as stormwater, agriculture, or urban sources

In Wetmore, Kansas, a partnership between CWSRF, the Bureau of Watershed Management, Glacial Hills Resource Conservation and Development, and the City of Wetmore established a new interseeding program to promote the use of cover crops to farmers in the region. Planting cover crops in the offseason can conserve water resources, reduce excess nutrients that can enter water bodies, and better protect water quality by improving the integrity of the soil profile over time.

Through the partnership, the City is receiving a pass-through loan that will be forgiven; funding goes to a local nonprofit partner who purchases the interseeding equipment and provides the equipment to agricultural service providers who can then significantly discount the cost of leasing the equipment to farmers to try the practice. More information on this project and best practices for equipment leasing programs can be found in this EPA case study.

National Estuary Program Projects

Implementing habitat, stormwater, or pollution-reduction projects that advance management plans of EPA-designated National Estuary Programs

The Association of Bay Area Governments in California received CWSRF assistance in the form of a $693,000 loan with 100% principal forgiveness for a multi-phase project to inform decision-making around the San Francisco Estuary’s health and develop the first State of the Estuary Report. The last phase included the complete overhaul and update of the San Francisco Estuary Partnership’s Comprehensive Conservation and Management Plan.

Decentralized Wastewater Treatment Systems

Support for onsite or clustered wastewater treatment systems such as septic systems or small community-scale systems

In Massachusetts, the state CWSRF program includes a Community Septic Management Program, whereby communities can get pass-through loans to go to homeowners for repairs or replacements of failed septic systems. Homeowners then repay their loans via property tax payments, while the community maintains a lien on the property until the loan is repaid. From 1996 to 2020, this program made over $142 million in loans and financed more than 480 septic projects.

Stormwater Management

Controlling wet-weather pollution from stormwater runoff or combined sewer overflows

The City of Hoboken and North Hudson Sewerage Authority undertook two interconnected projects to address water quality and public health problems by reducing combined sewer overflows (CSO), mitigating flooding, and enhancing urban resilience. This includes the creation of Northwest Resiliency Park that serves as both recreational space and a critical flood mitigation solution with advanced stormwater management systems, including an underground detention tank. Then they constructed a pumping station to convey water overflow to the new detention tank. Together, these projects have reduced CSO events from four per month to just four per year. The projects were financed with $40 million in loans from New Jersey’s CWSRF program, including $3 million in principal forgiveness.

Together, the two projects were recognized by the EPA as part of the PISCES 2025 Recognition Program. Northwest Resiliency Park was also the focus of a prior Local Infrastructure Hub case story.

Water Conservation, Efficiency, Reuse

Projects that conserve water, reuse treated wastewater, or improve efficiency while maintaining or improving water quality

Loudon Water, in northern Virginia, has utilized multiple CWSRF loans to finance recycled water projects that provide cooling water to more than 40 data centers. In 2024, Loudon Water’s Reclaimed Water Program delivered 736 million gallons of reclaimed water to customers, saving potable water and reducing nutrient discharge to the Potomac River and Chesapeake Bay.

Watershed Pilot Projects

Innovative demonstration projects that test watershed-scale approaches to water quality management

Brookhaven, Georgia was awarded a $5.7 million CWSRF loan by the Georgia Environmental Finance Authority. The loan was used to finance the acquisition of 33 acres of forested land adjacent to the Dekalb-Peachtree Airport that will preserve one of the largest remaining tracts of urban forest in the Atlanta area, helping to protect the watershed of Peachtree Creek.

Per the terms of the financial agreement, the city will pay 0.89% interest on the 20-year loan and will use their stormwater fund as the repayment source.

Energy Efficiency

Improvements to energy efficiency of wastewater treatment and collection systems

The Clifton Sanitation District, one of the largest public utilities in western Colorado, is investing in a new solar array with a $3 million loan from Colorado’s CWSRF program. The new solar array will provide more reliable, onsite energy generation on a district-owned parcel that is unsuitable for treatment due to local regulations, ensuring resiliency and protecting affordability for rate-payers. This transforms underutilized land owned by the utility into an asset, which will offset the District’s annual electricity consumption. The utility will also be able to generate $180,000 annually in extra revenue by selling surplus energy.

This project was recognized by the EPA as part of the PISCES 2025 Recognition Program.

Water Reuse

Projects that treat and reuse municipal effluent or stormwater for non-potable uses

Los Alamos County in New Mexico received a $26 million loan from New Mexico’s CWSRF program. The loan enabled the County to invest in the White Rock Resource Reclamation Facility in Los Alamos, New Mexico, which replaced the existing wastewater treatment plant from 1966. The facility was brought online in November 2024.

The project employs technologies that reclaim wastewater and reduce the demands on potable water resources by generating a reusable end product while utilizing means that minimize electricity demand, reduce stormwater pollution, and minimize manpower.

This project was recognized by the EPA as part of the PISCES 2025 Recognition Program.

Security Measures at Publicly-owned Treatment Works

Upgrading facilities to protect against climate change impacts, natural disasters, or security threats

Oklahoma City Water Utility Trust received over $55 million via a CWSRF loan to implement cybersecurity upgrades that are ensuring long-term financial and operational sustainability without imposing undue financial burdens on the community.

The upgraded software ensures compliance with national cybersecurity standards, protects water and wastewater systems, enhances community resilience, and maintains secure customer data and payment processing.

This project was recognized by the EPA as part of the PISCES 2025 Recognition Program.

Technical Assistance

Providing planning, design, and engineering assistance to support communities in developing eligible projects

The Clean Water Act allows states to set aside up to two percent of each capitalization grant they receive to fund technical assistance services to rural, small, and tribal publicly-owned treatment works. This funding typically goes towards contracts with  technical assistance providers to help eligible recipients address technical, managerial, and financial capacity.

Eligible recipients for technical assistance typically must request it from the state and the state should include it in their Intended Use Plan (IUP), as described later in this resource.

Drinking Water State Revolving Fund

Eligible entities for DWSRF assistance include public or private community water systems as well as nonprofit, non-community water systems (e.g., schools, publicly-owned campgrounds, parks, and churches). Eligibility for private systems or entities varies by state.

Per Section 1452 of the Safe Drinking Water Act and EPA regulations, there are six broad categories of eligible projects identified in the table below alongside examples. Additionally, some types of eligible projects may cut across these categories, including but not limited to water security, energy efficiency, and other capital projects.

DWSRF Eligibility Categories and Examples

Treatment

Construction or improvement of facilities that remove pollutants and contaminants from water to meet regulatory health standards

The City of Woonsocket received $55 million in total financing from Rhode Island’s DWSRF. This financing allowed the city to build a new water treatment plant that replaced an aging plant that no longer met the State’s water quality discharge standards. Additionally, by building the new plant outside of the Blackstone River’s floodplain, the City is increasing resilience to future storm events.

The new plant began producing water in July 2021.

Transmission and Distribution

Projects that convey treated water to users such as pipes, mains, service lines, and associated valves or meters

Reed City has leveraged about $9.3 million in loans from the State of Michigan’s DWSRF program to replace lead service lines and water mains. As of March 2025, the City has replaced 90% of their lead service lines with the remaining 10% expected to be completed by the end of 2025.

Source

Development, rehabilitation, or protection of water sources

The City of New London leveraged a loan of approximately $6 million from Connecticut’s DWSRF program to install a new raw water intake pump station. The new pump station was constructed to enable the City to access additional water from Lake Konomoc and increase the safe yield of their source to augment their system’s supply during peak demand periods and severe drought conditions.

Storage

Construction or rehabilitation of tanks, reservoirs, or standpipes that store potable water

The City of Pineville leveraged a $1.8 million grant alongside a $594,000 loan from Missouri’s DWSRF program to add treatment technologies to remove radionuclides from a well that was previously shut down and build a new 200,000 gallon water tower. The project, completed in 2024, also includes additional infrastructure improvements which eliminates the need for a booster pump station that was previously needed to address water pressure issues.

This project was recognized by the EPA as part of the 2025 Aquarius Recognition Program.

Consolidation

Combining water systems to improve compliance, capacity, or sustainability

Historically, residents of the Cities of Turlock and Ceres in California were dependent on drinking water from the Turlock Groundwater subbasin. However, reliance on groundwater as a single source for drinking water is not sustainable due to the decline in water quality and increasing number of regulated contaminants. To address the water quality and supply reliability challenges faced by both cities,  they formed a joint authority — the Stanislaus Regional Water Authority — which received a $184 million DWSRF loan to construct a water treatment plant, pump station, and transmission infrastructure. The partnership is crucial to address the challenges facing both cities and strengthen long-term water supply reliability.

The project was completed in 2023, and was recognized by the EPA as part of the 2025 Aquarius Recognition Program.

Creation of New Systems

Establishment of a new community water system to provide safe water where no public supply exists

As part of Texas’ FY 2026 DWSRF Intended Use Plan (IUP), North Alamo Water Supply Company is eligible to receive $5.42 million in DWSRF assistance for the Cameron-Willacy Counties First-Time Water Service Project. The project aims to extend safe, reliable drinking water to underserved areas in the two counties by constructing new water distribution infrastructure. The initiative will provide first-time public water services to residents who currently rely on private wells or inadequate water sources, and will enhance public health, quality of life, and long-term community resilience.

DWSRF cannot be used to finance the expansion of public water systems in anticipation of future population growth but rather only for the existing service population. However, the EPA allows a project scaled for the existing service population to be sized for a reasonable amount of population growth over the project’s useful life.

Conclusion 

Over many decades, the CWSRF and DWSRF have been examples of federal-state-local cooperation and successful in delivering clean, safe water to Americans no matter where they live. 

The IIJA provided a tremendous increase in funding to both the Drinking and Clean Water SRFs — $14 billion across both programs between FY 2022 – 2026 to support projects that address emerging contaminants, PFAS, and lead line replacements. The IIJA also increased the amount of forgivable loans offered by SRF programs. However, per a 2025 report from the Value of Water Campaign, even with the infusion of support under IIJA, there remains $88 – 95 billion in unmet need annually for new or renewed water infrastructure. Further, the future of funding levels for the SRF programs are an active part of the ongoing congressional appropriations processes. 

As of October 2025, future appropriations and priorities for the SRF programs are under discussion in Congress as part of both regular appropriations discussions and consideration of Surface Transportation Authorization reauthorization. 

As of the authoring of this publication, the House Appropriations Committee is proposing a 25% overall reduction to SRF funding, while the Senate Appropriations Committee maintains the programs at current spending levels. 

As local leaders plan for replacement, expansion, and improvements to local water systems, CWSRF and DWSRF remain a critical path funding source and pair well with other sources. Local leaders should contact their state counterparts overseeing the programs to plan accordingly. 

Accelerator for America would like to thank Drexel University Nowak Metro Finance Lab for their partnership in production of this case story for the Local Infrastructure Hub.

Other Resources