| http://www.w3.org/ns/prov#value | - avity and/or ice. structural control: a practice that involves design and construction of a facility to mitigate the adverse impact of urban runoff, and often requires maintenance. urban runoff: the portion of precipitation, snowmelt and/or irrigation water that does not naturally percolate into the ground and/or evaporate, but runs off the land into streams and other surface water.
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