This course presents the process of removing pollutants and controlling sediments from storm water runoff. The stormwater runoff is generated when precipitation from rain and snowmelt events flow over land or impervious surfaces and does not percolate into the ground. One of the best practices is the Bioretention process. Bioretention is a terrestrial based (up-land as opposed to wetland) water quality and water quantity control practice using the chemical, biological and physical properties of plants, microbes and soils. Bioretention was developed to have a broad range of applications, necessitating early analysis of the overall site design. Early analysis allows the designer to place bioretention facilities integrated throughout a proposed site design. For this reason, bioretention is also referred to as an Integrated Management Practice (IMP). This course material is based on the Prince George’s County, Maryland bioretention Manual Chapter Number 1.

At the conclusion of this course, the learner will have a better understanding about the Best Management Practices of Sedimentation and Pollutants Controlling Process as well as an understanding of the following topics:

• Pollutant removal efficiency
• Phytoremediation bioretention application and concept
• Bioretention components, area types and design themes
• Sizing criteria and bioretention economics
• That bioretention can be designed to mimic the pre-existing hydrologic conditions by treating the associated volumes of runoff