Publication Date

May 2023

Urban development and wetland loss have negatively impacted water quality. Natural areas and systems can help mitigate those impacts. With over two centuries of utilizing the Schuylkill River as a source of drinking water, Philadelphia has adapted from land preservation to wetland creation to achieve sediment Total Maximum Daily Load (TMDL) standards. This case study highlights how the innovation of constructed stormwater wetlands coupled with the restoration of forested natural areas provides water quality and ecological benefits.