Assess and design a green infrastructure plan to reduce stormwater runoff and nutrient loading in a small urban watershed. Define watershed characteristics and pollutant sources, select and justify a suite of BMPs (e.g., bioswales, rain gardens, permeable pavement, green roofs, retention basins), perform simple sizing and runoff/nutrient reduction estimates using typical removal efficiencies or a basic hydrologic model, and evaluate costs, maintenance, monitoring, and stakeholder engagement. Test application of hydrology, water-quality, and planning principles to produce a practicable undergraduate-level project plan.