Pennsylvania Academy of Natural Sciences Allegheny Plateau Audubon Society Alliance for the Chesapeake Bay Allegheny Defense Project Alliance for a Clean Environment Audubon Society of Western Pennsylvania . Bartramian Audubon Society Brush Valley Preservation Association Bucks County Audubon Society Chester Residents Concerned for Quality Living Clean Air Council Coalition Against the Incinerator Concerned Citizens for Limerick's Future Delaware Riverkeeper Network Great Lakes Information Network Greater Wyoming Valley Audubon Society Group Against Smog and Pollution Hawk Mt. Sanctuary Lehigh River Watershed Association Lehigh Valley Audubon Society . Lycoming Audubon Society Neighborhood Organizations Mobilized to Assure Local Livability Organization of Concerned Citizens of Wayne County Organizations United for the Environment Partners for Community Preservation PennPIRG Pennsylvania Consumer Action Network Pennsylvania Environmental Network Stonycreek, Conemaugh, Rivers Improvement Project Student Environmental Action Coalition People Against Landfill Expansion People Against Toxic Sludge Pine Creek Headwaters Protection Group Presque Isle Audubon Society . Quittapahilla Audubon Society Ruscombmanor Concerned Citizens Save Our Sanctuary Seneca Rocks Audubon Society Sierra Club, Pennsylvania Sierra Club, Allegheny (Pittsburgh) Sierra Club, Bucks County (Langhorne) South Mountain Audubon Society   The Birds of North America The Nature Conservancy Pennsylvania Unami Audubon Society . Valley Forge Audubon Society . Wyncote Audubon Society

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