| 摘要 |
A storm drain system ( 10 ) contained in the ground ( 36 ) contains a standpipe ( 12 ) having a bottom section ( 18 ) having perforations ( 20 ) where a porous pavement ( 22 ) surrounds the top portion of the standpipe ( 12 ), where, beneath the porous pavement is a substructure of coarse aggregate, all surrounded by a non-porous base material ( 34 ), such as concrete, where a storm drain ( 28 ) connects to the standpipe by a top outlet pipe ( 30 ), where water ( 38, 40 ) and liquid impurities ( 42 ) are separated from storm water runoff by a non-perforated section of the standpipe.
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