Amanda Pollack, PE, Karen Cappiella, Jordan Fox, Deb Caraco, PE, and Greg Hoffmann, PE. 2022. Green Stormwater Infrastructure siMple Pollutant Load Reduction Estimator. Developed by the Center for Watershed Protection, Inc. with funding from the United States Environmental Protection Agency Region 3, Maryland Department of Natural Resources, and the Chesapeake Bay Trust. Center for Watershed Protection, Inc, Fulton, MD.

stormwater, retrofit, Chesapeake Bay, pollutant load, model

The Green Stormwater Infrastructure siMple Pollutant Load reduction Estimator (”tool”) was developed to help Chesapeake Bay communities more easily and consistently estimate the water quality benefits of proposed stormwater retrofit and community greening projects.

The tool is an easy-to-use spreadsheet that is consistent with the pollutant loading rates and load reduction efficiencies used in the Chesapeake Bay Model. It allows users to estimate pollutant load reductions from individual projects as well as to compare a suite of candidate projects based on factors such as cost-effectiveness, pollutant load reduction, maintenance burden, and constructability. The multi-BMP comparison can assist with watershed restoration planning and implementation prioritization.