这张幻灯片概述了俄勒冈州圣海伦斯市的一个项目，该项目旨在解决膜过滤设施在地表水影响下处理地下水的问题。该项目对系统改造进行了水力分析，重新配置了现有供水管道，以隔离需要处理的水源，并提供了泵和电机改造。

This slide presentation outlines a project by the City of St. Helens, Oregon to address issues with a membrane filtration facility that treated groundwater under the influence of surface water. The project performed hydraulic analysis of system alterations, reconfigured existing supply piping to isolate sources requiring treatment, and supplied pump and motor modifications.