Click on the course numbers to learn more about each course. Water Engineering Non-Credit  River and Floodplain Modeling using HEC-RAS v.4.0 NCES 8322 Deferred Payment Form  Advanced River Modeling using HEC-RAS v.4.0 NCES 8324 Deferred Payment Form  Drinking Water and Health  NCES 8326 Deferred Payment Form  Filtration and Ultra-Filtration Treatment Systems: Process Design, Operation, Optimization NCES 8237 Deferred Payment Form  Introduction to HEC-HMS and HEC-RAS for Watershed Management Hydrology and Hydraulics NCES 8330 Deferred Payment Form