By understanding conditions in their customers’ plumbing systems, water utilities can select primary and supplemental treatment approaches to reduce public health concerns related to regrowth of Legionella.

中文翻译：

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在管道中应对军团菌生长时要考虑的风险

通过了解客户管道系统的状况，自来水公司可以选择主要和补充处理方法，以减少与军团菌再生有关的公共卫生问题。