本文介绍了一项正在进行的调查的结果，调查的影响，例行检查 在特定的加拿大地区，水泵循环和泄漏修复等操作会影响水质 分配系统。这项研究证明了网络入侵的发生 配电系统处于满负荷运行状态。为了监测泵运行的影响，取样 涉及使用高速压力数据和在线粒子计数器的协议 配电系统已经开发出来。用于修复管道泄漏、土壤和水 在修复后的干管附近取样，并结合对分布式管道的取样 已经在客户住宅和冲洗过的消防栓处进行了供水。后果 表明泵启动和停止引起的水力瞬变有时可能 根据粒子数诱导直接反应。然而，没有观察到这种影响 在不同的配电系统位置，响应行为也会有所不同。 为了修复管道泄漏，应提供管道泄漏期间土壤或脏水侵入的证据 有一次获得了维修工作；具体来说，高浓度的 在试验期间，在消防栓收集的水样中测量需氧孢子形成菌 冲洗操作。包括5个参考文献、表格、图表。

This paper presents the results of an ongoing investigation into the impact of routine operations such as pump cycling and leak repair on water quality in a specific Canadian distribution system. This research demonstrates occurrence of intrusion into the distribution system at full scale. To monitor the impact of pump operation, sampling protocols involving the use of high-speed pressure data and online particle counters in the distribution system have been developed. For the repair of pipe leaks, soil and water samples in the vicinity of the repaired main, combined with sampling of the distributed water at customer houses and at the flushed hydrants, have been conducted. Results indicate that hydraulic transients induced by pump start-ups and stoppages can sometimes induce a direct response in terms of particle counts. However, the effect is not observed systematically and the response behavior varies between distribution system locations. For the repair of pipe leaks, evidence of the intrusion of either soil or dirty water during the repair work was obtained on one occasion; specifically, an elevated concentration of aerobic sporeformers was measured in a water sample collected at the hydrant during the flushing operation. Includes 5 references, tables, figures.