The G3 Library provides a compendium of research and informational articles, webcasts and additional resources for G3 policymakers, local officials, engineers, community organizations among other disciplines. The following links provide access to EPA and G3 Partner sites and connect to a variety of topical areas relevant to process and practice of watershed based stormwater management.

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Green Streets Podcast

Green Streets, Edmonston, MD podcast

Faster Cheaper Greener Webcast Series

December 10, 2013
Perspectives, Tips, and Lessons Learned from the Successful and Innovative P3 Military Housing Privatization Initiative


January 13, 2014
Building Green Infrastructure, Jobs and Wealth: The Prince George's County, Maryland Urban Stormwater Retrofit Public Private Partnership (P3) Model


February 25, 2014
Stormwater Management Incentives and Public Private Partnerships in Philadelphia: Driving Affordable, Green Stormwater Infrastructure Retrofits on Private Properties


March 18, 2014
Financing Perspectives on Using Public Private Partnerships (P3s) for Green Infrastructure, Wealth, and Community Resiliency


Faster Cheaper Greener Webcast Series - 2015

A Series of Webcasts Exploring New Water Centric Strategies, Designs, Technologies and Applications Inspired By Nature, to Create Solutions For a Prosperous Planet 


October 21, 2015
Session I - Ecological Built Environments


G3 Webcast Series

April 18, 2013
Building Sustainable and Resilient Communities Through Green Infrastructure and Leveraging Capital - Showcasing G3 Communities Part 2


April 4, 2013
Infill Philadelphia: Soak it Up! Revitalizing Urban Neighborhoods with Green Stormwater Infrastructure


February 28, 2013
Building Sustainable and Resilient Communities through Green Infrastructure and Leveraging Capital - Showcasing G3 Communities Part 1


January 31, 2013
Chesapeake Bay Trust Green Streets Grant Program


August 7, 2012
Alternative Financing Models for Accomplishing Green Urban Stormwater Retrofits


August 2, 2012
Next Generation, Low Cost, High Performance Retrofit Technologies


March 20, 2012
Low Impact Development/Green Infrastructure Design Competitions


February 15, 2012
Chesapeake Bay Green Streets, Green Jobs, Green Towns (G3) Academy



Fresh Coast Green Solutions
Milwaukee Metro Sewer District (MMSD)
28pp, 4.25MB PDF

Weaving Milwaukee's Green & Grey Infrastructure into a Sustainable Future

Green City, Clean Waters
Philadelphia Water Department

Philadelphia's 25-year plan to protect and enhance watersheds by managing stormwater with innovative green infrastructure

Understanding the Urban Watershed
A Regional Curriculum Guide for the Classroom
Fairmount Water Works

Environmental Education for ChildrenThe Fairmount Water Works, a national historic engineering landmark, is currently Philadelphia Water Department's Urban Watershed Education Center.  Now celebrating its 10th anniversary as a Center and 200 years in potable water delivery, it has become the "go-to" place for urban water education in the region.

Local Water Policy Innovation
American Rivers
50 pp, 2.33 MB PDF

A Road Map for Community Based Stormwater Solutions

Managing Wet Weather with Green Infrastructure-Municipal Handbook
16pp, 1.45MB PDF

Rainwater Harvesting Polices

Federal Regulatory Programs-G.I. Permitting

Enforcement Fact Sheet Series- Regulatory drivers as a foundation for the implementation of green infrastructure.

Urban Forests-Case Studies
American Forests

Examines 12 cities positioning Urban Forests as part of integral and innovative strategies for green infrastructure


Green Infrastructure

G.I. is as approach that communities can choose to maintain healthy waters, provide multiple benefits.

Green Streets: A conceptual Guide to Effective Green Streets Design Solutions
7pp, 5.73MB PDF

A Conceptual Guide to Effective Green Streets Design Solutions.

Effectiveness of Low Impact Development
2pp, 1.67MB PDF

Factsheet that highlights the environmental benefits of several LID projects across the country.

Green Streets – An Innovative Street Design Approach
UC Davis
5pp, 691KB PDF

Overwhelmingly, the best streets derive from a conscious act of conception and creation of the street as a whole.

Low Impact Development Urban Design Tools
LID Center

tools and techniques that can be used to meet regulatory and receiving water protection program goals for urban retrofits, re-development projects, and new development sites

Managing Wet Weather with Green Infrastructure-Municipal Handbook
19 pp, 1.79MB PDF

Green Streets- In urban areas, roads present many opportunities for coordinated green infrastructure use.

Oregon State University Extension- Sea Grant Stormwater Solutions
OSU Extension Service

A source for education and technical assistance on low-impact development (LID) practices that address stormwater impacts.


Monitoring and Documenting the Performance of Stormwater Best Management Practices
Center for Neighborhood Technology, Illinois Sustainable Technology Center
University of Illinois at Urbana-Champaign
72pp, 3.8MB PDF

The Center for Neighborhood Technology (CNT) believes that a more sustainable solution involves the strategic use of "green infrastructure." Green infrastructure is sustainable because it utilizes stormwater as a resource

Villanova Urban Stormwater Partnership
Villanova University, College of Engineering

Stormwater Control Measures

North Carolina Stormwater Engineering Group
NC State and NC A&T University

Research areas of interest include the function and impacts of stormwater management


Sustainable Stormwater Financing Forum
”Faster, Cheaper, Greener” Urban Stormwater Retrofits
EPA-Region III

Public-Private Partnership Logo

Building sustainable stormwater infrastructure and economic health through Community-Based Public-Private Partnerships (CBP3s) and smart financing.




April 22, 2015 – Earth Day – EPA Region 3's Water Protection Division Center of Excellence for Green Infrastructure released a publication titled,Community Based Public-Private Partnerships (CBP3) and Alternative Market-Based Tools for Integrated Green Stormwater Infrastructure (PDF)(2.8 MB).   This guide comes out of a multi-year effort by the region and our partners to identify tools to help Mid-Atlantic communities to address their water quality challenges through faster, cheaper, and greener methods.   Input for this guide came from experts across a variety of sectors, including public infrastructure financing, green infrastructure, investment/finance, economic development, renewable energy and military housing, among others.  The Guide is intended for a variety of audiences, including, but not limited to, attorneys, finance specialists, P3 experts, public officials, economic developers, stormwater and green infrastructure practitioners and managers, decision-makers, and regulators.   Specifically, this report introduces the Community-Based Public-Private Partnership (CBP3) approach as a flexible, performance-based platform for implementing affordable, integrated green stormwater infrastructure to meet a variety of regulatory and community needs.   The Guide also provides background information on traditional P3s and how this paradigm differs from the CBP3 model.   Further, the guide goes into detail on the financing alternatives, as well as market-based tools.   WPD has held a series of webcasts over recent years, with many drawing well over 1,000 attendees from across the U.S. and abroad. Interest on how to finance, fund and implement green infrastructure investments at a reasonable cost as well as at a high rate has been expressed in all regions of the country. 

Bloomberg BNA Logo

July 29, 2015 - Public-Private Partnerships Beneficial for Implementing Green Infrastructure (PDF)(2.5 MB): The role of green infrastructure and other retention-based practices are key to the health of our urban waterways and communities.  Large-scale investments are needed to address the impacts of excessive stormwater runoff and associated pollutants.  However, traditional methods of investment in green infrastructure are often done in a piecemeal and inefficient manner.  A new approach, referred to as Community-Based Public Private Partnerships (CBP3s), can disrupt the status quo by increasing cost efficiencies and focusing on local economic development and social benefits associated with large-scale green stormwater infrastructure investments.  

Soak Up the Rain Campaign
EPA-Region I.

Soak up the Rain Campaign to reduce polluted run-off from flowing into streams, lakes, and rivers.

Financing Stormwater Retrofits in Philadelphia and Beyond
36pp, 438KB PDF

Addresses the root cause of the problem: impervious spaces in the built environment that generate 10 trillion gallons of untreated runoff per year.

The Value of Green Infrastructure
Center for Neighborhood Technology , American Rivers
80pp, 16.03MB PDF

A Guide to Recognizing Its Economic, Environmental and Social Benefits

Banking on Green:
Philadelphia Water Department, PWD
44pp, 990KB PDF

A look at how green infrastructure can save money and provide economic benefits community wide

Water Works
Philadelphia Water Department, PWD
44pp, 990KB PDF

Rebuilding Infrastructure, creating jobs, greening the environment



Following are links to various permeable pavement projects provided in the (ASLA) Landscape Architecture Foundation performance series. The object of the series is to quantify landscape architecture design benefits to improve a clients knowledge of better technologies and design approaches.

Charles City Permeable Streetscape

Ravinia Festival South Parking Lot

Malibu Lumber

Elmer Avenue Retrofit



This EPA publication provides descriptions of some of the most common and influential green infrastructure policies and practices, a brief background on how each approach works and examples from relevant case studies about results, barriers and processes for implementation. Many of the policies work in tandem and fit within a context of several other green infrastructure policies and programs. The greenest cities in terms of stormwater management use a wide range of policies and a number of approaches that focus on both public and private proper.

Municipal Policies for Managing Stormwater with Green Infrastructure


The Philadelphia Water Department (PWD) is using a variety of innovations to protect waterways from polluted rainwater, but they're every bit as focused on meeting community needs as they are on keeping stormwater out of rivers and streams. When residents of the Queen Lane section of the city expressed concern about speeding cars during public meetings, the PWD team designed a stormwater management system to control runoff -- and cars.

The innovative "storm water bump-outs" that lie upstream of storm drains are designed to manage runoff from sidewalks and streets AND to create a traffic calming effect. "We don't just come in and do a stormwater project," says PWD's Jessica Brooks, "we meet with the community and try to tailor a solution to their needs…" The bump-outs make a visual impression on a driver -- giving the perception of the road narrowing -- so a driver slows down. That's a real win-win: good for the community and good watershed health.

Stormwater Bumpouts: Calmer Community, Cleaner Creek