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VFDM 1.21

The Vegetated Filter Ditch Model (VFDM) was developed by Waterborne to design and evaluate the effectiveness of vegetated filter ditches as a Best Management Practice (BMP) to reduce the occurrence of agrochemical residues in downstream waterways. This model can also be used as a design tool to assist in the construction of a vegetated ditch for a farm system to help reduce the transport of agrochemicals into receiving waters.

VFDM was developed for the Yolo County, California, Resource Conservation District (RCD) under a grant by the California State Water Resources Control Board, Pesticide Reduction and Investigation of Source Mitigation (PRISM) Program.

To obtain a copy of the model, please go to the model download page.

Acknowledgements

We would like to acknowledge the following individuals and organizations for providing field data and other information for model development and verification: Jeanette Wrysinski, Yolo County RCD; Debra Denton, US Environmental Protection Agency - Region 9; Matt Moore, US Department of Agriculture - Agriculture Research Service; David Crane, California Department of Fish and Game; Mark Grismer, University of California - Davis; and Matt Huddleston, ENTRIX.