COURSE DESCRIPTION & OUTLINE:
What Is Low Impact Development (LID)?
The U.S. Environmental Protection Agency (EPA) considers LID to be a management approach and set of practices that can reduce runoff and pollutant loadings by managing runoff as close to its source(s) as possible. LID includes overall site design approaches (holistic LID, or LID integrated management practices) and individual small-scale stormwater management practices (isolated LID practices) that promote the use of natural systems for infiltration, evapotranspiration and the harvesting and use of rainwater. Although both holistic LID and isolated LID practices can remove pollutants and reduce damaging stormwater flows (volume and velocity), holistic approaches maximize these benefits. Note that LID is not the same as “no (or zero) impact development” which may represent an unattainable ideal.
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