主要工作表現指標 Key Performance Indicators 財政年度 Financial Year 指標 Indicators 2019/20 2020/21 2021/22 食水水質 100%符合香港食水標準* Fresh Water Quality 100% compliance with the Hong Kong Drinking Water Standards* 達到指標 Target achieved 達到指標 Target achieved 達到指標 Target achieved 海水水質 97%符合水務署所定的水質指標** Salt Water Quality 97% compliance with WSD Water Quality Objectives** 達到指標 Target achieved 達到指標 Target achieved 達到指標 Target achieved 食水供水水壓（15至30米）^ Fresh Water Supply Pressure (15 – 30 metres) ^ 100% 100% 100% 海水供水水壓（15米）^ Salt Water Supply Pressure (15 metres) ^ 100% 100% 100% 因預先計劃進行的工程而暫停供水的時間長度 (98%於八小時內) Water Supply Suspension Duration for Planned Work (98% within 8 hours) 達到指標 Target achieved 達到指標 Target achieved 達到指標 Target achieved 準確水錶的比率98%的偏差程度不超過±3%*** Proportion of accurate water meters 98% with inaccuracy not exceeding ±3%*** 98.2% 97.3% 98.4% * 水務署自二零一七年九月起開始採用香港食水標準 為指標，而在此之前，則一直採用世界衞生組織制 訂的《飲用水水質準則》為指標。 The Hong Kong Drinking Water Standards have been adopted by the WSD in the target since September 2017. Before that, the World Health Organization's Guidelines for Drinking-water Quality were adopted in the target. ** 此指標於二零一九至二零年度經修訂為「海水水質 ─97%符合水務署所定的水質指標」，二零一八至 一九年度則為「海水水質─96%符合水務署所定的 水質指標」，而二零一七至一八年度所採用的指標為 「海水水質（供水接駁位置）─ 96%符合水務署所 定的水質指標」。 The target for 2019/20 has been revised as "Salt water quality – 97% compliance with WSD Water Quality Objectives". The target for 2018/19 was "Salt water quality – 96% compliance with WSD Water Quality Objectives". The target in 2017/18 was "Salt water quality (at connection points) – 96% compliance with WSD Water Quality Objectives". *** 此指標將於二零二二至二三年度修訂為「準確水錶 的比率─98%的偏差程度不超過±3%」，二零二一 至二二年度則為「水錶的準確程度─100%的偏差 程度不超過±3%」。 The target for 2022/23 is to be revised as "Proportion of accurate water meters–98% with inaccuracy not exceeding ±3%". The target for 2021/22 was "Accuracy of water meters–100% with inaccuracy not exceeding ±3%". ^ 配水系統內（不包括系統盡頭）最低的剩餘水壓。 Minimum residual pressure in the distribution systems except at their extremities. 關於我們 Our Profile 水務署 二零二一至二二年年報 WSD Annual Report 2021/22 15
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