1997年9月，圣迭戈市的水回收项目委托建造了每天3000万加仑（MGD）的北城水回收厂（NCWRP），以及相关的循环水输送和分配系统。该项目是近十年规划、谈判、设计和施工的结果。循环水分配系统包括大约40英里长的管道、四个压力区、两个泵站、九个减压站和一个900万加仑的蓄水池。为了更好地理解该项目，本文讨论了有关该市营销工作、大客户、有益的再利用研究、长期目标和新的循环水费率的一般信息。

In September 1997, the City of San Diego's Water Reclamation Program commissioned the thirty million gallon per day (MGD) North City Water Reclamation Plant (NCWRP), and the associated recycled water transmission and distribution system. This project was the result of almost ten years of planning, negotiation, design and construction. The Recycled Water Distribution System includes approximately forty miles of pipeline, four pressure zones, two pump stations, nine pressure reducing stations and a nine million-gallon reservoir. In an effort to provide a better understanding of the program, general information regarding the City's marketing efforts, large customers, beneficial reuse study, long term goals, and new recycled water rates are discussed in this paper.