| Environmental Organizations | 
| Allegheny CleanWays | 
| Allegheny County Conservation District | 
| Audubon Society of Western Pennsylvania | 
| Center for Watershed Protection | 
| Clean Water Action | 
| EnviroLink Network | 
| Foundation for Pennsylvania Watersheds | 
| Friends of Latodami Environmental Education Center | 
| Friends of the Riverfront | 
| Green Building Alliance (GBA) | 
| GreenPittsburgh.net | 
| Hollow Oak Land Trust | 
| Mt. Lebanon Nature Conservancy | 
| Nine Mile Run Watershed Association | 
| PennFuture | 
| Pennsylvania Enviromental Council | 
| Pennsylvania Organization for Watersheds and Rivers (POWR) | 
| Pennsylvania Resources Council (PRC) | 
| Pittsburgh Green Story | 
| Pittsburgh Parks Conservancy | 
| Rain Garden Alliance | 
| River Network | 
| Riverlife | 
| RiverSides | 
| Scott Conservancy | 
| Sierra Club, Allegheny Group | 
| Sustainable Pittsburgh | 
| Tree Pittsburgh | 
| Turtle Creek Watershed Association | 
| Western Pennsylvania Conservancy | 
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| Wet Weather | 
| City of Baton Rouge Wastewater Program | 
| City of Sacramento Stormwater Management Program | 
| City of Seattle Drainage and Sewer System | 
| Columbus Water Works | 
| Detroit Water and Sewerage Department | 
| District of Columbia Water and Sewer Authority | 
| Environmental Services City of Portland | 
| King County Regional Wastewater Services | 
| Louisville/Jefferson County Metropolitan Sewer District | 
| Massachusetts Water Resources Authority | 
| Metropolitan Sewer District of Greater Cincinnati | 
| Milwaukee Metropolitan Sewerage District | 
| Narragansett Bay Commission | 
| Portland Sustainable Stormwater Approach | 
| Portland Water District | 
| Rouge River National Wet Weather Demonstration Program | 
| SPC Water Resource Center | 
| Stormwater Manager's Resource Center | 
| Stormwater PA | 
| Washington Suburban Sanitary Commission | 
| Water Environment Research Foundation Sustainable Stormwater | 
| Water Reclamation District of Greater Chicago | 
| West Georgia Watershed Assessment | 
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| Environmental Education | 
| 3 Rivers 2nd Nature | 
| Center for Healthy Environments & Communities, University of Pittsburgh Graduate School of Public Health | 
| Chatham University: School of Sustainability and the Environment (SSE) | 
| Creek Connections | 
| Duquesne University: Center for Environmental Research & Education (CERE) | 
| Earth Force | 
| Explorers Club of Pittsburgh | 
| Explore Pennsylvania's Water Resources | 
| Institute of Professional Environmental Practice | 
| Jewish Federation of Greater Pittsburgh Environmental Committee | 
| National Small Flows Clearinghouse | 
| Northeast Midwest Institute | 
| Rachel Carson Institute | 
| Resources for the Future | 
| RiverQuest | 
| Steinbrenner Institute for Environmental Education and Research | 
| Student Conservation Association | 
| The Penn State Center: Engaging Pittsburgh | 
| Watershed Atlas (of the Monongahela and Allegheny Rivers) | 
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| Industry and Municipal Associations | 
| Allegheny League of Municipalities | 
| American Public Works Association (APWA) | 
| Association for Pennsylvania Municipal Management (APMM) | 
| Local Government Academy | 
| Local Government Environmental Assistance Network | 
| NASSCO | 
| National Association of Towns and Townships | 
| National Center for Small Communities | 
| North Hills COG | 
| Ohio River Valley Water Sanitation Commission (ORSANCO) | 
| PA League of Cities and Municipalities | 
| Pennsylvania Municipal Authorities Association (PMAA) | 
| Pennsylvania Water Environment Association | 
| South Hills Area COG | 
| Steel Rivers Council of Governments | 
| The National Association of Clean Water Agencies (NACWA) | 
| Trenchless Technology Magazine | 
| Turtle Creek Valley COG | 
| Water Environment Federation (WEF) | 
| Water Environment Research Foundation (WERF) | 
| Water Infrastructure Network | 
| Water Science and Technology Board | 
| Western PA Water Pollution Control Association | 
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| Partners  | 
| ALCOSAN | 
| Allegheny County Health Department (ACHD) | 
| Colcom Foundation | 
| CONNECT | 
| Heinz Endowments | 
| Richard King Mellon Foundation | 
| Allegheny Land Trust | 
| Pennsylvania Environmental Council | 
|  | 
| Governmental Agencies | 
| Allegheny County Community Development Block Grants (CDBG) | 
| Allegheny County Conservation District | 
| Allegheny County Health Department (ACHD) | 
| Army Corps of Engineers | 
| County Offices in Pennsylvania | 
| Environmental Protection Agency (EPA) | 
| NOAA | 
| Pennsylvania Department of Environmental Protection (PA DEP) | 
| Pennsylvania Infrastructure Investment Authority (PENNVEST) | 
| Rural Utilities Service (RUS) | 
| U.S. Geological Survey (USGS) | 
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| Miscellaneous | 
| Venture Outdoors | 
| Vieux & Associates (radar rainfall) |