日益严格的水和废水处理要求以及水资源限制 导致增加了水再利用系统的实施，以减少饮用水需求。本文使用 以北卡罗来纳州卡里镇为例，说明再利用在减少水需求和满足夏季灌溉方面的重要性 峰值，并概述监管问题，如防回流注意事项。包括表格、数字。

Increasingly stringent water and wastewater treatment requirements and water resource limitations have resulted in increased implementation of water reuse systems to reduce potable water demand. This paper uses case examples of the Town of Cary, North Carolina to illustrate the importance of reuse in reducing water demand and meeting summer irrigation peaks, and overviews regulatory issues such as backflow prevention considerations. Includes tables, figures.