Composition of Constructed Stormwater Wetland Muck Substrate

Constructed stormwater wetlands (CSWs) are designed to collect nutrient-rich runoff water while facilitating sediment and water filtration before subsequent release to downstream aquatic ecosystems. However, the capacity of CSWs to support these functions is failing, often leading to the development of blue-green algae blooms. The goal of this project is to identify the ideal muck and/or amendments that can be added to maximize their nutrient removal efficiency while supporting biogeochemical conditions that minimize risk of algae bloom development. Outcomes of this study will guide the future design of CSWs to achieve their intended functions of water quality regulation.