Funding Amount

Not stated

Deadline

Deadline not published

Grant Type

Foundation

Deadline history & next window

Cycle
Annual
Tracked since
April 2026

From the program guidelines: “However, every year billions of gallons of stormwater mixed with raw sewage ends up, untreated, in local creeks, streams, and rivers due to outdated infrastructure that is overwhelmed, especially during extreme weather.”

Overview

The William Penn Foundation aims to reduce annual untreated sewage overflows in Philadelphia by 5 billion gallons by 2035. This initiative focuses on addressing outdated infrastructure that contributes to pollution during extreme weather events. By engaging communities, particularly those most affected, the foundation seeks innovative solutions to improve water quality and public health. This effort aligns with ongoing successes since the Clean Water Act and highlights the need for equitable access to clean waterways.

By 2035, reduce annual untreated sewage overflows by 5 billion gallons per year across the region.
The decades since the passage of the 1972 US Clean Water Act have seen remarkable success in the clean-up of urban waterways, including those in Philadelphia. With that improvement has come significant growth in the number of people looking for positive experiences on, in, and along the region’s rivers and streams.
However, every year billions of gallons of stormwater mixed with raw sewage ends up, untreated, in local creeks, streams, and rivers due to outdated infrastructure that is overwhelmed, especially during extreme weather. In many cases, the communities near these waterways have average household incomes below the poverty line, meaning the areas that have historically withstood economic and environmental burdens have less access to clean waterways. These contaminated waters also spill into basements, parks, and public roads – often in these same neighborhoods – during flooding.
To improve the quality of life for Philadelphians, to enhance health and safety, and to reduce pollutants in our communities, we have prioritized a reduction in sewage overflows.
We recognize that there are many ways that organizations and communities can contribute to advancing this objective and are looking for Philadelphians’ best ideas about how to accomplish this in communities across the city, particularly those that have been most burdened by this problem.

What The William Penn Foundation actually gave

Source: IRS Form 990-PF, 2024

Grants in 2024
1,027
Total given
$148.83M
Median grant
$50K
Range
$45–$7.78M
  • By dollars: Pennsylvania 85%, New Jersey 3%, District of Columbia 3%. Top recipient cities: Philadelphia, PA; Washington, DC; New York, NY.
  • 6% of grants with a stated purpose were for general or operating support.
  • 21% of recipients were new grantees, not repeat recipients.

Example grants

  • National Philanthropic Trust · Jenkintown, PA

    Implement the rebuild initiative

    $7.78M

  • Delaware River Waterfront Corporation · Philadelphia, PA

    Construction of penn's landing park

    $7M

  • Philadelphia Orchestra and Kimmel Center Inc · Philadelphia, PA

    Capital campaign 2024

    $5M

  • Fairmount Park Conservancy · Philadelphia, PA

    Capital improvements and planning for fdr park

    $3.46M

  • Zoological Society of Philadelphia · Philadelphia, PA

    Capital campaign 2024

    $3M

IRS Form 990-PF, 2024. Amounts as reported by the funder. Full 990 history →

Focus Areas & Funding Uses

Fields of Work

  • Environment
  • Water
  • Environmental justice
  • Community development

Categories

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