目前正在建设的洛杉矶水渠过滤厂的设计要求使用臭氧进行预处理，以帮助絮凝、控制味道和气味、减少三卤甲烷的产生、用作消毒剂，并帮助去除浊度。臭氧系统的规格允许投标人从四种臭氧生产的替代方法中进行选择，并推迟了臭氧系统大楼的最终设计，直到设备被选定。除投标书外，投标人还需提供具体数据，以确保设施在20年的生命周期内具有成本效益，并提供具有可比规模臭氧系统经验的证据。中标人提供了一个围绕高纯度供氧系统设计的系统，该系统通过低温发生器现场制氧。据估计，由于这种不同寻常的投标程序，洛杉矶市将在未来20年节省500万美元。 包括8个参考文献、表格、图表。

The design of the Los Angeles Aqueduct Filtration Plant currently under construction calls for pretreatment with ozone to aid in flocculation, to control tastes and odors, to reduce the production of trihalomethanes, to serve as a disinfectant, and to aid in the removal of turbidity. Specifications for the ozone system allowed bidders to choose among four alternative methods for ozone production and postponed the final design of the building housing the ozone system until the equipment had been selected. In addition to bid proposals, bidders were required to supply specific data to ensure a costeffective facility over a life cycle of twenty years and evidence of experience with ozone systems of comparable size. The successful bidder offered a system designed around a high-purity oxygen-feed system with on-site oxygen generation by means of a cryogenic generator. It is estimated that the city of Los Angeles will save $5 million over the next twenty years as a result of this unusual bidding procedure. Includes 8 references, table, figures.