EPA announces $67M Funding For Stormwater Management

Overflow & Stormwater Grants to address infrastructure needs

The day following the U.S. President’s plan to boost infrastructure spending, the Environmental Protection Agency (EPA) announced the availability of $67 million in new grant funding.

Reauthorization of the Sewer Overflow and Stormwater Reuse Municipal Grant (OSG) program is intended to help municipalities or municipal entities improve stormwater management. Mitigation and prevention of sewer overflows as well as reduction of pollution that can flow into local waterways is anticipated.

In particular financial support is available for the planning, design, and/or construction of (A) treatment works to intercept, transport, control, treat, or reuse municipal CSO, SSO, or stormwater; and (B) any other measures to manage, reduce, treat, or recapture stormwater or subsurface drainage water eligible for assistance under section 603(c).

Only capital projects are eligible for funding, including infrastructure planning, design, construction, and equipment purchases. Operations and maintenance activities are not eligible.

Eligible projects exist under three general categories: 1) combined sewer overflow correction, 2) sanitary sewer overflow correction, and 3) stormwater and subsurface drainage water. Read details here.

All states, U.S. territories, and the District of Columbia can apply. Access the state entity allocation table here. Topping the allocation list are California (10.6%), Ohio (7.0%), New York (6.4%), New Jersey (5.7%) and Texas (5.5%).

Once awarded, funds will be provided as sub-awards to municipal entities for projects that address infrastructure needs for CSOs, sanitary sewer overflows (SSO), and stormwater management.

Stormwater's path to the River story map and photo credit MWMO Mississippi Watershed Management Organization

Stormwater runoff often conveys pollutants — including trash, (motor) oils, fertilizers and dirt/sediment, laundered clothing fibers, and microplastics — into nearby waterways. When mixed with domestic and industrial wastewater in combined sewers, stormwater also contributes to combined sewer overflows (CSO) during heavy rainstorms.

“Under America’s Water Infrastructure Act of 2018, this new grant program empowers EPA’s state, local, and utility partners to improve stormwater management and benefit communities,” Radhika Fox, EPA Assistant Administrator for Water.


America’s Water Infrastructure Act (AWIA) of 2018 amended section 221 of the Clean Water Act, which reauthorized the Sewer Overflow and Stormwater Reuse Municipal Grants program. These amendments expanded project eligibilities to include stormwater management projects and authorized appropriations for the program.

The program received a $28 million appropriation in fiscal year 2020 and a $40 million appropriation in fiscal year 2021. EPA developed an allotment formula for the Sewer Overflow and Stormwater Reuse Municipal Grant program to best address CSOs, SSOs, and stormwater needs for each state, as determined by the data from the latest Clean Watersheds Needs Survey, along with supplemental data on population, urban population, and precipitation.