Extended Detention Basin
A variant basin design called an extended detention dry basin can limit downstream erosion and control of some pollutants such as suspended solids. This basin type differs from a retention basin, also known as a "wet pond," which includes a permanent pool of water, and which is typically designed to protect water quality.
While basic detention ponds are often designed to empty within 6 to 12 hours after a storm, extended detention (ED) dry basins improve on the basic detention design by lengthening the storage time, for example, to 24 or 48 hours. Longer storage times tend to result in improved water quality because additional suspended solids are removed.
Read more about this topic: Detention Basin
Famous quotes containing the words extended and/or detention:
“Whenever there are in any country uncultivated lands and unemployed poor, it is clear that the laws of property have been so far extended as to violate natural right. The earth is given as a common stock for man to labor and live on.... The small landowners are the most precious part of a state.”
—Thomas Jefferson (1743–1826)
“I would like you to understand completely, also emotionally, that I’m a political detainee and will be a political prisoner, that I have nothing now or in the future to be ashamed of in this situation. That, at bottom, I myself have in a certain sense asked for this detention and this sentence, because I’ve always refused to change my opinion, for which I would be willing to give my life and not just remain in prison. That therefore I can only be tranquil and content with myself.”
—Antonio Gramsci (1891–1937)