佛罗里达州基斯水道管理局（FKAA）通过130英里长的输送管道和650英里长的分配系统管道向门罗县居民提供饮用水。FKAA的水处理厂位于南戴德县，平均每天处理1400万加仑水。对于使用氯胺消毒剂残留物的系统，硝化的威胁是一个非常令人担忧的问题，可能会给配电系统带来严重的运行问题。如果需要公开通知，硝化事件可能会导致组合余氯的损失、异养平板计数的增加、阳性总大肠菌群的增加以及消费者信心的丧失。本文介绍了硝化作用给FKAA系统带来的挑战，以及控制该问题所采用的控制策略。

The Florida Keys Aqueduct Authority (FKAA) provides potable water to the residents of Monroe County through a 130-mile long transmission pipe and 650 miles of distribution system piping. The FKAA's water treatment plant is located in south Dade County and treats an average of 14.0 million gallons per day. For systems using a chloramine disinfectant residual, the threat of nitrification is of great concern and can present significant distribution system operating problems. A nitrification episode can lead to loss of combined chlorine residual, increased heterotrophic plate count, increased positive total coliform and loss of consumer confidence if public notification is required. This paper presents the challenges that nitrification presented to the FKAA system and the control strategies employed to control the problem.