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This slide show explores the design principles of four different vegetative filter practices. Each of the four practices incorporate the four major design components of: flow regulation, pretreatment, filtering, and overflow. Vegetative practices have been called a whole suite of names in the past. These include, grassy swales, bio swales, filter strips, grass buffers, and grass channels, to name a few. This slide show consolidates many of these past naming conventions and design principles into a unified approach for the design of water quality treatment using vegetative filters.
Guidance is also provided on selected material specifications and maintenance elements.