GoToWebinar :
WERF is producing a Nutrient Impact Modeling Toolbox to help stakeholders select modeling approaches based on a variety of factors. The principal product of the project is to be a “ Nutrient Impact Modeling Toolbox” designed to help local governments, utilities, states, and other stakeholders select modeling approaches based on a variety of factors, including: 1) types of waterbodies; 2) biological, physical, and chemical response indicators relevant to waterbody types; 3) data availability; 4) modeling options and limitations; 5) regulatory applications associated with the various modeling options for derivation of water quality standard criteria, total maximum daily load allocations, effluent limits for point sources; 6) targets for nonpoint source best management practices; and 7) data and information for nutrient source trading. The planned result will be a process that will provide a quantitative connection between nutrient loads and ecological indicators of water quality standards designated uses.