Low-Impact Development

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Presentation transcript:

Low-Impact Development mimics the natural hydrology that existed before development occurred.

Three types of Green Roofs Intensive Green Roofs Extensive Green Roofs Semi-intensive Green Roofs

Permeable (or porous) Pavement Is pavement that allows for the vertical passage of water. Example of Permeable (Porous) Pavement Grass Gravel or crushed stone Grid Paver stones Porous concrete or asphalt

Groundwater Contaminants It is originate from a wide variety of natural and anthropogenic sources. Nonaqueous phase liquids (NAPLs) specialized class of organic contaminants that do not mix readily with water.

CHAPTER 10: WATER TREATMENT Introduction Water Treatment the purpose of water treatment is to provide potable water that is palatable. Potable Water refers to water that is healthy for human Palatable Water describes water that is aesthetically acceptable to drink or free from turbidity, color, odor, and objectionable taste.