愉景湾水厂（DWW）是由愉景湾开发的香港度假村国际有限公司（HKR）拥有的，是香港唯一一家包括新界在内的民营水厂。从有限的可用记录中观察到，执行泄漏检测计划的动力源于对非工作时间“比平时更多”用水量的担忧。据估计，饮用水供应中的水损失最大为20%，冲洗水供应中的水损失最大为15%。愉景湾发展计划自成立以来，已设有一条双管供水系统，包括经处理的地表水供住宅使用，以及未经处理的地表水供厕所冲厕和灌溉之用。 DBW的工作包括泄漏检测培训、积极的水计量、仪表精度和测试。由于并非所有DBW用水都是计量的，因此消防栓冲洗和灌溉活动不受监管。DBW在可行的情况下安装了额外的水表，以考虑这些水损失。应注意的是，自从为本文提交了摘要以来，DBW在执行“愉景湾水系泄漏检测调查初步报告”（CDM International，1994年8月）报告中提出的建议方面的优先事项发生了变化。这些优先权的变化部分是由于经济衰退和业主的内部政策决定。 其他发展项目，如愉景湾供水系统的改变，暂时引起了人们对其他问题的关注。不用说，这些变化导致缺乏所需的数据，以显示在提交本文时预计将报告的水损失的估计减少。

The Discovery Bay Waterworks (DBW) is owned by Hong Kong Resorts International Ltd (HKR), the developer of Discovery Bay, and is the only privately owned municipal waterworks in Hong Kong including the New Territories. The impetus for performing a leak detection program evolved from concern for the "larger than usual" amount of water usage during the off-hours as observed from the limited records available. Water losses were estimated to be a maximum of 20% in the potable water supply and 15% in the flush water supply. A dual-piped water supply consisting of treated surface water for domestic purposes and untreated surface water for toilet flushing and irrigation has been in place throughout the Discovery Bay development since inception. DBW's efforts included leak detection training, aggressive water metering, and meter accuracy and testing. As not all of DBW water consumption is metered, fire hydrant flushing and irrigation activities are not regulated. DBW installed additional meters wherever feasible to account for these water losses. It should be noted since the abstract was submitted for this paper, changes in DBW's priorities with respect to implementing recommendations made in the report "Preliminary Report on Leak Detection Survey of Discovery Bay Water System" (CDM International, August 1994) have occurred. These changes in priority are partly due to the economic downturn and internal policy decisions on the part of the owner. Other development, such as a change in water supplies serving Discovery Bay, have caused a focus on other issues temporarily. Needless to say, these changes have resulted in a lack of data needed to show the estimated reduction in water losses expected to be reported at the time of presentation of this paper.