Technical Bulletin No. 0808: Stream Model Assessment with AgDrift

<p align="justify">From 1992 to 1995, the Spray Drift Task Force, a consortium of 38 chemical companies manufacturing pesticides in the United States, in response to a directive from the U.S. Environmental Protection Agency, conducted a series of field and laboratory studies that provided the evaluation basis for an aerial application prediction model called AgDRIFT. This model is anticipated to become a regulatory tool for registration and support for the use of agricultural chemicals in the United States. As a part of the development cycle of AgDRIFT, NCASI was given the opportunity to add a Stream Assessment algorithm to the toolbox capability of the model. This report summarizes the development and validation of the resulting Stream Assessment algorithm that has been programmed into AgDRIFT, and its relationship with other available assessment tools.</p>