Usually these pipes take waste water to treatment plants. But any overflow is released into rivers and streams.

通常这些管道都将污水送往污水处理厂，但还有些污水溢流到河流和小溪之中。

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They often overflow into rivers and streams during storms.

在暴雨来临时这些废水又会溢流到河中。

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Inhabit quiet pools and backwaters of creeks and small to large rivers, swamps, lakes and overflow areas of large streams.

栖息于大的溪流小溪的静止池水与洄水区与小型到大型河川，沼泽，湖与溢值区域。

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They often overflow into rivers and streams during storms.

FORBES: Magazine Article

When storms hit, these systems can overflow, sending untreated sewage into rivers, lakes, beaches, and drinking water supplies.

FORBES: Smart Communities will Build Green Infrastructure