Sewer Overflow and Stormwater Reuse Municipal Grant Program
Environmental Protection Agency
The objective of the OSG Program is to award grants to the states, the District of Columbia, and U.S. territories for the purpose of providing grants to a municipality or municipal entity for the planning, design, or construction of: 1) treatment works to intercept, transport, control, treat, or reuse municipal combined sewer overflows (CSOs), sanitary sewer overflows (SSOs), or stormwater; and 2) any other measures to manage, reduce, treat, or recapture stormwater or subsurface drainage water.
Jargon-free version
Helps states and territories pay for projects that improve sewer systems and manage stormwater. This includes planning and building solutions for overflow issues.
Quick Facts
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What Is This Program?
What Benefits Are Offered?
This grant program provides funding to states, which then make sub-awards to communities for critical stormwater infrastructure projects, including planning, designing, and constructing combined sewer overflows (CSOs), sanitary sewer overflows (SSOs), and stormwater management projects. The program has been appropriated over $282 million in total. Projects for rural and financially distressed communities have project cost share requirements eliminated.
Who Is Eligible?
Industries: public administration, environmental services, water and sewage utilities
Region: US states, District of Columbia, US territories, rural communities
Other Criteria: Applicants are US states, the District of Columbia, and US territories (who then provide sub-awards to eligible entities/communities), Sub-awards are for communities addressing combined sewer overflows (CSOs), sanitary sewer overflows (SSOs), and stormwater management needs, Priority given to communities that are financially distressed, have a long-term municipal CSO or SSO control plan, or have requested a grant on their Clean Water State Revolving Fund (CWSRF) Intended Use Plan, States are required to use at least 20% of their allocation for green infrastructure, water and energy efficiency improvements, and other environmentally innovative activities, States are required to use at least 25% of a grant for available projects located in rural communities (population 10,000 or fewer) and/or in financially distressed communities
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📋What Are the Application Steps & Timeline?
- 📝Steps to Apply
- Learn about the program and eligibility requirements.
- Prepare project proposals that address CSOs, SSOs, and stormwater management needs.
- Submit applications through the designated state agency.
- States review applications and prioritize funding for eligible projects.
- 🌐Application Portal
- https://www.epa.gov/cwsrf/sewer-overflow-and-stormwater-reuse-municipal-grants-program
- 📤Submission Method
- online
- 📅Key Dates
- April 29, 2026Announcement of grant availability
- 🔄Intake Type
- fixed-deadline
📄What Documents Are Required?
- ✅Required Documents
- SF-424 (Application for Federal Assistance)
- SF-424A (Budget Information - Non-Construction)
- SF-424B (Assurances)
- Project Narrative
- Budget Narrative
- Indirect cost rate agreement
- Environmental review
- 📐Format Requirements
- PDF only, max 10MB
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💰What Expenses Are Eligible?
- 🧾Eligible Expenses
- Notification systems that inform the public of combined sewer or sanitary overflows
- 📏Expense Caps
- 20% cost share requirement may be reduced based on funding to rural or financially distressed communities.
- 💳Payment Model
- mixed
🤝Is Matching Funding Required?
- 🔀Matching Required
- Yes
- 📊Matching Ratio
- 25% minimum
- 🏦Eligible Matching Sources
- cash
- in-kind
- 📚Stacking Rules
- Non-federal cost share requirements do not apply to portions of a grant that support financially distressed communities
📊What Are the Reporting Requirements?
- 🗓️Reporting Frequency
- annual
- 📑Reporting Requirements
- performance progress report
- financial report
- 🔍Audit Requirements
- OMB Uniform Guidance Single Audit if the recipient expends $750,000 or more in federal awards in a fiscal year
- 📢Branding Requirements
- Recipients are required to ensure that procurement plans comply with BABA requirements prior to grants being awarded.
- 🗄️Record Retention Period
- 3 years post-final-report
How Do I Apply?
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FAQFrequently Asked Questions
Visit the program page for detailed eligibility requirements.
This program offers funding up to $282,000,000 (minimum $39).
This program accepts applications on a rolling basis.
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