Assess students' ability to develop and apply a watershed-scale nutrient budget to quantify agricultural N and P loads (point and nonpoint), account for in-stream retention and delivery, calculate expected load reductions from candidate BMPs using given export coefficients and BMP efficacies, prioritize cost-effective practices, and justify a monitoring/adaptive-management plan to reduce downstream eutrophication risk. Provide land-use, hydrology, and basic parameter data; require calculations, interpretation, and recommendations.